CN117445662A - Vehicle machine control method and device, control device and storage medium during vehicle power change - Google Patents

Abstract

The invention relates to a vehicle engine control method, device, control device and storage medium during battery swapping. The car includes a first battery and a second battery, wherein the second battery is replaced during the power replacement process. In response to the power replacement instruction, the method includes: determining whether the power of the first battery can satisfy the power requirement during the power replacement period. Use of on-vehicle functions; Determine whether the power of the first battery can meet the preset functional restriction conditions during the power swap process; Based on whether the power of the first battery can meet the use of on-board functions during the power swap period and during the power swap process The vehicle functions are selectively limited based on the judgment result of whether the power of the first battery can meet the preset function restriction conditions. This technology not only provides users with different levels of functional services based on different power conditions, but also optimizes the battery swapping experience. Through this method, it not only meets users' needs for vehicle functions, but also ensures the safety and efficiency of the battery and vehicle.

Description

Car engine control method, device, control device and storage medium during car battery swapping

Technical field

The present invention relates to the technical field of electric vehicles, and specifically provides a vehicle engine control method, device, control device and storage medium during battery replacement.

Background technique

In the field of new energy vehicle technology, battery swapping technology is gradually being widely used as a way to quickly charge electric vehicles.

However, this process is not risk-free. During the battery swapping operation, if the on-board functions continue to operate at high power, the low-voltage battery in the vehicle may be quickly depleted of power. As a result, after the battery swap is completed, the vehicle cannot start normally due to insufficient power in the low-voltage battery. This not only affects the user's driving experience, but may also pose a potential threat to the user's safety.

Accordingly, this field needs a new vehicle control solution to solve the above problems.

Contents of the invention

In order to overcome the above defects, the present invention is proposed to solve or at least partially solve the technical problem in the prior art that the low-voltage battery may run out of power during the battery replacement process.

In a first aspect, the present invention provides a vehicle engine control method during power swapping in a car. The car includes a first battery and a second battery, wherein the second battery is replaced during the power swapping process, and is characterized in that: The method includes: in response to a power swap command, determining whether the power of the first battery can satisfy the use of on-board functions during the power swap; and determining whether the power of the first battery can meet preset functional restriction conditions during the power swap. ; Selectively restrict the on-vehicle functions based on the judgment result of whether the power of the first battery can meet the use of the on-board functions during the battery swapping period and whether the power of the first battery can meet the preset function restriction conditions during the power swapping process.

In a technical solution of the above method, "determining whether the power of the first battery can satisfy the use of on-board functions during the battery replacement period" includes the following steps: obtaining the first remaining power of the first battery; determining the first remaining power based on the first remaining power. Whether the power of a battery can satisfy the use of on-board functions during the battery replacement period.

In a technical solution of the above method, "determining whether the power of the first battery can meet the preset functional restriction conditions during the power exchange process" includes the following steps: obtaining the second remaining power of the first battery; based on the second The remaining power determines whether the power of the first battery can meet the preset functional restriction conditions during the battery replacement process.

In a technical solution of the above method, "the judgment is based on whether the power of the first battery can meet the use of on-board functions during the power swap and whether the power of the first battery can meet the preset functional restriction conditions during the power swap. As a result, "selectively limiting vehicle-mounted functions" includes the following steps: selectively limiting the first type of vehicle-mounted function or limiting the second type of vehicle-mounted function according to the comparison of the first remaining power and the second remaining power.

In a technical solution of the above method, a preset first power threshold and a preset second power threshold are obtained, wherein the first power threshold and the second power threshold are both preset power thresholds corresponding to the remaining power; " "According to the comparison of the first remaining power and the second remaining power, selectively restricting the first type of vehicle function or limiting the second type of vehicle function" includes the following steps: according to the first remaining power and the first The power threshold and the comparison result between the second remaining power and the second power threshold selectively limit the first type of vehicle-mounted function or limit the second type of vehicle-mounted function.

In a technical solution of the above method, "based on the comparison results between the first remaining power and the first power threshold and the second remaining power and the second power threshold, selectively perform restrictions on the first type of vehicle functions or limit "The second type of vehicle-mounted function" includes the following steps: if the first remaining power is less than or equal to the preset first power threshold, then restrict the first type of vehicle function; if the first remaining power is greater than the preset first power threshold, obtain the first The second remaining power of a battery and the preset second power threshold are used to limit the second type of vehicle function until the second remaining power is less than or equal to the preset second power threshold.

In a technical solution of the above method, after "restricting the second type of vehicle function", it also includes: obtaining the third remaining power and the preset third power threshold until the third remaining power is less than or equal to the preset third power threshold. Three power thresholds limit the third type of vehicle functions, where the third power threshold is a preset power threshold corresponding to the remaining power.

In a technical solution of the above method, before "obtaining the second remaining power of the first battery and the preset second power threshold", the method further includes: acquiring the first health level of the first battery and the corresponding preset health threshold; compare the first health level with the preset health threshold; if the first health level is less than or equal to the preset health threshold, restrict some vehicle functions.

In a technical solution of the above method, the method further includes: during the power replacement process, obtaining battery information of the first battery; and determining whether the first battery has failed based on the battery information of the first battery.

In a technical solution of the above method, the battery information includes a power-down rate; "determining whether the first battery fails based on the battery information of the first battery" includes: determining whether the power-down rate exceeds a preset range; If the power-down rate exceeds this range, it is determined that the first battery has failed.

In a technical solution of the above method, the battery information includes: the remaining power of the first battery at different times and its corresponding time information, where the battery information includes the power-down rate; "judging the first battery based on the battery information of the first battery" "Whether a fault has occurred", including: inputting battery information into the trained neural network to obtain fault judgment results.

In a technical solution of the above method, the first type of vehicle-mounted function includes at least one of: some sub-functions in the entertainment interactive function, some sub-functions in the comfort adjustment function, and some sub-functions in the environmental control function, Each of the entertainment interactive functions, comfort adjustment functions or environment adjustment functions includes at least one sub-function.

In a technical solution of the above method, the restriction of the second type of vehicle function includes reducing the maximum output power or reducing the current sub-function of at least one of the entertainment interactive function, comfort adjustment function, and environmental control function. Functional energy consumption.

In a technical solution of the above method, the third type of vehicle-mounted function includes at least one of: some sub-functions in the entertainment interactive function, some sub-functions in the comfort adjustment function, and some sub-functions in the environmental control function.

In a technical solution of the above method, the third type of vehicle-mounted function at least includes: the vehicle-mounted function includes a battery replacement service guarantee function, and the first type of vehicle-mounted function, the second type of vehicle-mounted function and the third type of vehicle-mounted function are all The battery replacement service guarantee function is not included.

In a technical solution of the above method, the third type of vehicle-mounted function at least includes: the battery exchange service guarantee function at least includes an alarm function when the first battery power is too low, a communication function with the battery exchange operation background, and background takeover guarantee Function or one of the mobile terminal's display functions for battery replacement status.

In a technical solution of the above method, the third type of vehicle function at least includes: when an abnormal situation occurs or when the third remaining power is less than or equal to the preset third power threshold, the cloud system and the power swap operation will intervene in the swap. Manage the electrical process and take corresponding measures to prevent the vehicle from lying down. In a second aspect, the present invention provides a vehicle engine control device during battery swapping of a car, wherein the car includes a first battery and a second battery, wherein the second battery is replaced during the battery swapping process, characterized in that , the device includes: an initial power detection module: in response to the power replacement command, determines whether the power of the first battery can meet the use of the vehicle functions during the power replacement period; a usage power detection module: determines whether the power of the first battery during the power replacement process Whether the power of the first battery can meet the preset function restriction conditions; the vehicle function limitation module: based on whether the power of the first battery can meet the use of the vehicle functions during the power swap period and whether the power of the first battery can meet the preset conditions during the power swap. The judgment results of the set function restriction conditions selectively limit the vehicle functions.

In a third aspect, a control device is provided. The control device includes a processor and a storage device. The storage device is adapted to store a plurality of computer programs. The computer program is adapted to be loaded and run by the processor to execute the above. The vehicle engine control method when the automobile is exchanging electricity is described in any one of the technical solutions of the technical solutions of the vehicle engine control method when the automobile is exchanging electricity.

In a fourth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a plurality of computer programs. The computer programs are adapted to be loaded and run by a processor to perform the above-mentioned vehicle power swap. The vehicle engine control method during battery swapping described in any of the technical solutions of the control method.

One or more of the above technical solutions of the present invention have at least one or more of the following

Beneficial effects:

In the technical solution for implementing the present invention, the power status of the first battery is obtained in real time in response to the battery replacement instruction, thereby providing the user with a flexible combination of multiple vehicle functions. This strategy not only provides users with different levels of functional services based on different power conditions, optimizing the battery swapping experience, but also ensures the stability of the low-voltage battery, thereby ensuring the vehicle's continued operating efficiency. Through this method, users' needs for in-vehicle functions are met, while the safety and efficiency of the battery and vehicle are ensured.

Description of the drawings

The disclosure of the present invention will become more understandable with reference to the accompanying drawings. Those skilled in the art can easily understand that these drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. Additionally, like numbers in the figures identify similar parts, where:

Figure 1 is a schematic flowchart of the main steps of a vehicle engine control method during battery swapping according to an embodiment of the present invention;

Figure 2 is a schematic flowchart of the secondary steps of the vehicle engine control method during battery replacement according to one embodiment of the present invention;

Figure 3 is a schematic flowchart of the secondary steps of the vehicle engine control method during battery replacement according to one embodiment of the present invention;

Figure 4 is a schematic flowchart of the secondary steps of the vehicle engine control method during battery replacement according to one embodiment of the present invention;

Figure 5 is a main structural block diagram of a vehicle engine control device during battery replacement according to an embodiment of the present invention;

Figure 6 is a schematic diagram of the main control structure of the vehicle engine control method during battery replacement according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a vehicle engine control method during battery replacement according to an embodiment of the present invention.

List of reference signs:

11: Initial power detection module; 12: Used power detection module; 13: Vehicle function limitation module.

Detailed ways

Some embodiments of the invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, "module" and "processor" may include hardware, software, or a combination of both. A module can include hardware circuits, various suitable sensors, communication ports, and memory. It can also include software parts, such as computer programs, or it can be a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor can be implemented in software, hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable media that can store computer programs, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and/or B" means all possible combinations of A and B, such as just A, just B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and/or B" and may include just A, just B or A and B. The singular forms "a," "the" and "the" may also include the plural form.

Here we first explain some terms involved in the present invention.

Battery exchange: used in the field of new energy vehicles. In the present invention, it specifically refers to a method for energy supply of electric vehicles. In contrast to the traditional charging method, which charges the car's battery pack through a power source, the core idea of the battery swap method is to replace the entire or part of the battery pack instead of charging it directly. During this process, the car's drained or partially drained battery is removed and replaced with a new, pre-charged battery or battery pack.

In an example of an application scenario of the present invention, a car includes a first battery and a second battery, where the second battery is replaced during the battery replacement process. Specifically, the first battery is a low-voltage battery that is mainly responsible for providing electrical energy to support the basic electronic functions of the car, such as interior lighting, audio systems, and some sub-functions of the air conditioning system. Since such functions typically do not require large amounts of electrical energy, low-voltage batteries are often used to meet the needs while maintaining relatively small size and weight.

In contrast, the second battery is a high-voltage battery whose main responsibility is to provide the necessary power for the vehicle's drive system. When the car is driving, almost all driving energy is provided by this high-voltage battery.

Example 1:

Referring to FIG. 1 , FIG. 1 is a schematic flowchart of the main steps of a vehicle engine control method during battery replacement according to an embodiment of the present invention. As shown in Figures 1 and 7, the vehicle engine control method during battery replacement in the embodiment of the present invention mainly includes the following steps S10 to S30.

Step S10: In response to the battery swap command, determine whether the power of the first battery can satisfy the use of the vehicle-mounted functions during the battery swap period.

In one embodiment, the first remaining power of the first battery is first obtained, and then based on the first remaining power, it is determined whether the power of the first battery can satisfy the use of the vehicle functions during the battery replacement period. Specifically, the detailed determination is made through step S101 ,details as follows:

Step S101: In response to the battery replacement instruction, obtain the first remaining power of the first battery and the corresponding preset first power threshold, and compare the first remaining power with the first power threshold.

In this embodiment, the battery swap command is the beginning of the battery swap operation. For example, the user uses a mobile phone or a car engine to issue a battery swap command to start acquiring the first remaining power of the first battery. The first power threshold is a preset power threshold corresponding to the remaining power.

In one embodiment, the first battery is mainly responsible for basic electronic functions of the car, such as interior lighting, audio system, air conditioning control, etc. This characteristic makes the stable operation of the first battery crucial. Once its charge is exhausted or too low, these basic functions will be affected, which may lead to instability or even shutdown of the entire vehicle system. More importantly, when the first battery completely depletes its power during the power swap, the car may not have enough initial power supply to start its basic system after the power swap is completed, causing the car to fail to start normally and Work.

In this embodiment, in response to the battery replacement command, the system automatically detects the state of charge of the first battery. During the battery replacement process, the first battery enters a special state, that is, it can only discharge but cannot accept charging. In this state, if not managed and controlled, the first battery may quickly drain its power because it supports various internal functions before the battery swap is completed. At the same time, due to the characteristics of the first battery, when there is a second battery, the power of the first battery is usually full or close to full. Therefore, in response to the battery replacement command, the second battery is still on the vehicle body. Therefore, when the battery power of the first battery is low, it indicates that there may be a problem with the battery system. For safety reasons, additional in-vehicle functions are no longer supported at this time.

In order to ensure that the first battery can still provide stable power support during the battery replacement process, the system needs to obtain the remaining power of the battery. By setting a preset first power threshold, the system can compare the remaining power of the first battery with the threshold in real time. This threshold is actually a battery warning line, designed to ensure that the car can start and work normally after the battery swap is completed, even if the car performs some high-consumption activities during the battery swap.

In this embodiment, a method of obtaining the first remaining power of the first battery is provided. Preferably, in one embodiment, a method based on Kalman filtering is used to estimate the state quantity of the battery, that is, to estimate the first remaining power.

Specifically, first, by appropriately modeling the battery, the state equation and observation equation of the battery are established. Here, the SOC of the battery is regarded as the state of the system, while the measured voltage and current are observations. The state estimate and estimated error covariance matrix are then initialized for the Kalman filter. And within each time step, use the state equation to predict the state of the next time step and update the error covariance matrix. After this, the predicted state is compared with the actual observations using the measurement equation, and the residuals are calculated. Then, the state estimate and error covariance matrix are updated based on the residuals. Finally, after the above steps, the estimated state value of the filter is the required first remaining power.

In this embodiment, once the battery swap process is entered, in order to save electric energy, the driving function corresponding function will be turned off during the battery swap, such as changing to a driving gear. However, the entertainment module and the module that improves comfort are selected to be turned on, such as audio, video playback or air conditioning control.

Step S20: Determine whether the power of the first battery can meet the preset functional restriction conditions during the battery replacement process.

In one embodiment, the second remaining power of the first battery during the point swapping process is first obtained, and then based on the second remaining power, it is determined whether the power of the first battery during the power swapping process can meet the preset functional restriction conditions. . Specifically, detailed judgment is made through step S201, as follows:

Step S201: Obtain the second remaining power of the first battery and the preset second power threshold, and compare the second remaining power with the second power threshold.

In this embodiment, the second power threshold is a preset power threshold corresponding to the remaining power.

In one implementation, the second remaining power of the first battery is obtained and compared with a preset second power threshold. The setting of this step is to monitor the remaining power of the battery in real time during the battery replacement process.

By comparing the first remaining power with the first power threshold, it has been estimated that the current power of the first battery is theoretically sufficient to support the consumption during the battery replacement process. However, there may be various external and internal factors during the battery replacement process, such as the battery replacement time is too long, the system load is too high, the first battery has serious internal aging, or other unexpected power consumption, these factors may cause the first battery to The power consumption is higher than expected.

In this embodiment, in order to ensure the accuracy of power management and the stable operation of the automobile system, the second remaining power is monitored in the step, and the power management strategy is also adjusted in the subsequent steps. Preferably, in this embodiment, the second remaining power of the first battery is continuously obtained through interval monitoring. In this step, through real-time monitoring of the power of the first battery, the system can more keenly perceive possible risks and problems.

In this embodiment, the preset second power threshold is not only a benchmark for power safety, but also provides a clear operating basis for the power management strategy. By comparing the second power threshold with the obtained second remaining power, the system can not only quickly assess whether the current power state meets the requirements for safe startup and operation, but also provide data support for subsequent policy adjustments. For example, when the power is very close to or below the threshold, the system may prioritize ensuring the normal operation of key functions and temporarily shut down or limit non-critical functions to ensure the stability of the entire vehicle system.

In addition, combined with the second remaining power and the second power threshold, the system can also provide the driver with a more accurate early warning, allowing the driver to more clearly understand the vehicle's power status, thereby making more reasonable driving and usage decisions. Electric decision-making.

In summary, this step brings an all-round, multi-dimensional power monitoring mechanism to the car's battery swap system. It not only realizes real-time monitoring of power, but also provides strong data support for intelligent adjustment and strategy optimization of the system, further ensuring that the power of the first battery is always in a controllable and safe state during the power replacement process.

Step S30: Selectively restrict on-vehicle functions based on the judgment result of whether the power of the first battery can meet the use of the on-board functions during the battery swapping period and whether the power of the first battery can meet the preset function restriction conditions during the power swapping process. .

In this embodiment, the vehicle-mounted function is a function that can be used on the vehicle based on the first battery providing energy.

In one embodiment, based on the first remaining power and the second remaining power, the first type of vehicle-mounted function is selectively restricted or the second type of vehicle-mounted function is restricted. Specifically, the operation is performed through step S301, as follows:

Step S301: Selectively restrict the first type of vehicle-mounted function or the second type of vehicle-mounted function according to the comparison results of comparing the first remaining power with the first power threshold and comparing the second remaining power with the second power threshold.

In this embodiment, limiting the vehicle-mounted function includes: prohibiting the vehicle-mounted function and limiting the maximum power output by the specified vehicle-mounted function or limiting the power of the specified vehicle-mounted function that is running.

In one embodiment, this step ensures the stable operation of the car during the battery replacement process by making decisions based on the first battery power in different periods, and avoids starting difficulties or failures due to low power to the greatest extent, thereby allowing the user to During the battery swapping phase, the reliability of the vehicle battery is maintained while increasing the user's battery swapping experience. In this embodiment, on-vehicle functions are dynamically adjusted in a targeted manner based on the first and second remaining power levels and their respective preset thresholds.

In this implementation, this step ensures that the power of the first battery is always maintained within a safe range during the power swap process through real-time monitoring and adjustment of on-board functions, thereby ensuring that the car can start and work normally after the power swap is completed.

Preferably, in one embodiment, step S30 is implemented through steps S301-1 to S301-3, as shown in Figure 2. Specifically,

Step S301-1: If the first remaining power is less than or equal to the preset first power threshold, limit the first type of vehicle-mounted function.

In this embodiment, the first type of vehicle-mounted function is a vehicle-mounted function that is preset and needs to be restricted based on the first remaining power determination.

In one implementation, the first type of vehicle-mounted functions include entertainment interactive functions, comfort adjustment functions, environment control functions, etc. When the first remaining power of the first battery is less than or equal to the first power threshold, the system will immediately limit the first type of vehicle function. Preferably, in one embodiment, the system prohibits the use of some first-category vehicle functions. Disable some sub-functions in the entertainment interactive function, disable some sub-functions in the comfort adjustment function, or disable some sub-functions in the environment control function.

The entertainment interactive function, comfort adjustment function or environment control function each includes at least one sub-function. Specifically, in this embodiment, the entertainment interactive function at least includes: control of the vehicle screen and display of the vehicle screen, vehicle intelligence One of the interactive system control, audio control function, video control function, game center experience function, and third-party APP use. The comfort adjustment function includes at least one of: steering wheel heating function, seat ventilation function, seat heating function, seat massage function, intelligent seat control adjustment function, and window adjustment function. The environment control function includes at least one of: air conditioning control function, ventilation function, fragrance function, vehicle refrigerator function, ambient light control function, and lighting function.

This strategy is designed based on three considerations. The first point is that before the battery swap has begun, the remaining power of the first battery is not much. In order to ensure that the vehicle can start and operate normally after the battery swap is completed, The system will adopt a conservative strategy, that is, first restrict the first type of vehicle functions. This is designed to retain the most basic charge for the battery to ensure the basic driving needs of the car.

In addition, the second point is that during the battery replacement process, due to excessive power consumption, the system needs to temporarily disable certain functions, which will interrupt the user's usage process. For example, they may be listening to music, watching videos, or using other entertainment functions. . Such interruptions will undoubtedly reduce user experience satisfaction. Therefore, in order to improve the integrity of the user's entertainment experience during the point change process, the system chooses to limit the first type of in-vehicle functions at the beginning, thereby providing users with a more coherent and consistent experience.

In addition, thirdly, frequently pushing the battery power close to its limit will adversely affect the health and life of the battery. Therefore, by limiting the rapid consumption of power, you can indirectly protect the battery and extend its service life.

Step S301-2: If the first remaining power is greater than the preset first power threshold, obtain the second remaining power of the first battery and the preset second power threshold until the second remaining power is less than or equal to the preset second power threshold. The power threshold limits the second type of vehicle functions.

In one embodiment, the system continuously obtains the second remaining power information of the first battery in real time during the battery replacement process. Whenever this information is updated, the system compares it to a preset second battery threshold. Once the system detects that the second remaining power information is less than or equal to the preset second power threshold, it implies that the power consumption of the on-board function during the power swap process has exceeded the established safety range or has reached a critical critical point. . In order to ensure that the vehicle still has sufficient power for normal operation after the battery swap is completed, the system will immediately take measures to intervene and limit the second type of vehicle functions.

Preferably, in one implementation, limiting the second type of in-vehicle functions will involve some non-critical but acceptable adjustments that have an impact on user experience. In this embodiment, limiting the second type of vehicle functions includes reducing the maximum output power of some sub-functions of at least one of the entertainment interactive function, comfort adjustment function, and environment control function or reducing the energy consumption of the current sub-function. Taking the car screen as an example, its brightness will be automatically reduced by the system at this time, that is, the energy consumption of the current sub-functions will be reduced, thereby achieving the effect of saving energy consumption. In addition, the air conditioning system may automatically switch to a more energy-saving mode, which reduces the maximum output power of the sub-function, such as reducing the fan speed to reduce the output air volume. Functions such as the audio system and seat heating will also be adjusted to low-power mode.

At the same time, in order to ensure that the driver and passengers in the vehicle have a clear understanding of the current battery status and system intervention measures, the system will also display corresponding warning information on the vehicle's central control screen. In addition, a sound prompt may also be triggered to notify the user that the battery has reached a critical point and the battery protection mode has been activated. Drivers and passengers are advised to reduce unnecessary use of on-board functions to ensure safe and stable starting and driving after battery replacement.

In this implementation, the main goal of this strategy is to ensure the continuity of the power exchange process. This means that the system aims to ensure that the battery power consumption is maintained at a reasonable speed during the battery swapping process, thereby making the user's battery swapping experience more complete and comfortable.

Step S301-3: Obtain the third remaining power and the preset third power threshold. Until the third remaining power is less than or equal to the preset third power threshold, the third type of vehicle function is restricted.

In this embodiment, the third power threshold is a preset power threshold corresponding to the remaining power. Limiting the third type of vehicle functions is to focus on some of the second type of vehicle functions on the premise that the second type of vehicle functions have been restricted. functions and other functions are again restricted.

In one embodiment, after the second type of vehicle function has been restricted in step S302, the system will continue to obtain the third remaining power information and compare it with the preset third power threshold. The purpose of this monitoring action is to capture the real-time status of the first battery's power at all times in order to make an immediate response.

When the third remaining power drops to or below the preset third power threshold, it usually means that the remaining power of the vehicle battery has reached a very dangerous area. In order to deal with this situation and ensure that the vehicle has enough power to start and run after the battery replacement, the system will adopt a more aggressive strategy.

Specifically, the system will disable the third category of vehicle functions, most of which are large power-consuming functions that can directly affect the battery life of the first battery. Specifically, restricting the third type of vehicle functions includes at least one of disabling some sub-functions in the entertainment interactive function, disabling some sub-functions in the comfort adjustment function, and disabling some sub-functions in the environmental control function. For example, disabling the seat heating function, or even some advanced driver assistance systems may be turned off directly. This direct disabling is to quickly reduce the battery consumption rate and ensure that the battery always has a certain reserve during the entire battery replacement process.

Preferably, in one embodiment, the vehicle-mounted functions include a battery swapping service guarantee function, and the first type of vehicle-mounted functions, the second type of vehicle-mounted functions and the third type of vehicle-mounted functions do not include a battery swapping service guaranteeing function.

In this embodiment, the battery swap service guarantee function is a necessary function designed to improve safety during the battery swap process. Preferably, in this embodiment, the battery exchange service guarantee function at least includes an alarm function when the first battery is too low, a communication function with the battery exchange operation background, a background takeover guarantee function, or a display of the battery exchange status on the mobile terminal. One of the functions. Specifically,

Preferably, in one embodiment, the alarm function when the first battery power is too low is that when the third remaining power is less than or equal to the preset third power threshold, it is considered that the first battery power is too low at this time. At this time, in order to ensure the safety and comfort of the driver and passengers in the car, and to prevent them from being confused or annoyed by the sudden loss of functions, the vehicle central control system will issue clear warnings to the driver and passengers. Preferably, in one embodiment, this is achieved through text and graphic prompts on the central control screen, audio warnings, or slight vibrations of the seat. The content of the warning will clearly inform them that some functions have been temporarily disabled due to the low power of the first battery, and provide comfort to the passengers.

The core goal of this strategy is to ensure that the basic driving functions of the vehicle are not affected in emergency power situations, while also ensuring that drivers and passengers are fully informed to avoid inconvenience caused by loss of functions.

Preferably, in one embodiment, the communication function with the power swap operation background is for users to be able to grasp the power swap dynamics or receive guidance from professional staff when encountering emergencies. Preferably, in this embodiment, during the battery swapping process, all restricted functions do not include the call function on the vehicle and the battery swapping operation background. Users can communicate with the battery swap operation backend in real time through the dedicated battery swap service line on the vehicle to learn about battery swap dynamics or receive communication guidance.

Preferably, in one implementation, the background takeover guarantee function is to take over the current vehicle system the day after tomorrow when necessary. Specifically, when an abnormal situation occurs or when the third remaining power is less than or equal to the preset third power threshold, the cloud system and power swap operation will intervene in the management of the power swap process and take corresponding measures to prevent the vehicle from being stranded.

Specifically, after receiving the notification, the operation background first remotely monitors the actual situation of the battery swap station and the current battery swap process of the vehicle. This step includes checking whether there is a fault at the battery swapping station or other anomalies in the vehicle's battery swapping process. Afterwards, if it is determined that intervention management is required, remote operation will be attempted first. This includes remote recovery of the status of the battery swap station, and conducting necessary remote diagnostic operations after telephone communication and confirmation with the user. If the problem cannot be solved through remote operation, the operations backend will dispatch a duty specialist to the site to handle it.

In this embodiment, the abnormal situation here may be an abnormal alarm of the vehicle itself, an abnormal alarm caused by an abnormality of the battery swap station, an alarm triggered by an abnormality during the battery swap process, or a takeover request applied by the user for some reason. For example, the abnormal alarm of the vehicle itself includes alarming due to failure to power off, etc. Alarms triggered due to abnormalities during the power exchange process include alarms triggered by the failure of a single electronic exchange process to be executed smoothly during the power exchange process.

Preferably, in one embodiment, the display function of the battery swap status means that the battery swap status can be notified by the user in the form of media transmission. The media here can be a mobile terminal or a central control screen of the vehicle for display. In this implementation, taking the mobile terminal as an example, the display function of the battery swap status is that during the battery swap process, the user's mobile terminal can communicate with the operation background, and the operation background can send the vehicle's battery swap status to the user's mobile phone. terminal, allowing users to observe the vehicle's battery swap status in real time through the mobile terminal, thereby increasing the user experience.

In summary, this technical solution mainly focuses on the power management of electric vehicles during the battery swapping process. By monitoring the remaining power information in different periods or stages and comparing it with the preset threshold, it intelligently limits or disables specific vehicle functions. This is designed to ensure that the first battery has sufficient reserves to support the normal operation of the vehicle after battery replacement, and to optimize the user experience, so as to meet the user's needs for on-board functions as much as possible, while ensuring the safety and efficiency of the battery and vehicle.

Example 2:

In this embodiment, most of the technologies are the same as in Embodiment 1. The difference is that in this embodiment, the health of the battery is also introduced as a judgment criterion. Otherwise, the other technologies are the same as in Embodiment 1. No further details will be given here, as shown in Figure 3, the details are as follows:

Step S40: Obtain the first health level of the first battery and the corresponding preset health level threshold, and compare the first health level with the preset health level threshold.

In this embodiment, battery health, usually expressed as a percentage value, reflects the difference between the current state of the battery and its new battery state when it leaves the factory, and represents the degree of battery performance degradation.

In one embodiment, preferably, the car is equipped with an internal battery management system (BMS), which is responsible for outputting the health of the first battery. The health of a battery is not only an important indicator to evaluate its current working condition, but can also be used to predict the remaining life of the battery. It is worth noting that when the health of the battery gradually decreases and reaches a certain threshold, it may encounter a situation where although the power on the surface seems to be sufficient, under continuous heavy use, Power may be drained much faster than generally expected.

In this embodiment, if the health of the battery is lower than the preset threshold, even if the battery currently still has sufficient power, it may still lose power too quickly during subsequent use of on-board functions. In order to ensure that the car can start and run normally under any circumstances, the system chooses to adopt a conservative strategy, which is to limit or prohibit some on-board functions based on battery health information. At the same time, this setting also tries to avoid situations that would interrupt the user's experience midway, and also protects the battery.

After obtaining the battery health information, the system will compare it with the preset health threshold. This preset threshold is determined based on battery performance and other related factors, and is usually set when the vehicle leaves the factory. It is designed to indicate that during the battery swap period, the battery status has dropped to the point where it cannot support long-term use of power-intensive vehicle functions.

Through this comparison, the system can determine in advance whether the battery is about to enter a potentially dangerous or inefficient state, providing information for next steps.

Step S50: If the first health level is less than or equal to the preset health level threshold, restrict some in-vehicle functions.

In one implementation, when the first health level is less than or equal to the preset health level threshold, the system will automatically trigger a series of restriction policies to adjust or disable certain in-vehicle functions. For example, disabling rear speakers, limiting the maximum power of the air conditioner, etc.

It should be noted that in this embodiment, if it is determined that the power of the first battery can satisfy the use of the vehicle-mounted functions during the battery replacement period, some of the vehicle-mounted functions restricted by step S50 in subsequent use will still not be able to be used normally until the battery is replaced. The electrical process ends.

As shown in Figure 6, the mobile terminal can receive information from the cloud system and the vehicle control system at the same time. Preferably, the battery management system sends the battery information to the cloud system through the vehicle control system for further analysis. The cloud system sends the data back to the vehicle control system control function restriction module to limit the corresponding functions. This not only meets users' needs for in-vehicle functions, but also ensures the safety and efficiency of batteries and vehicles.

Example 3:

In this embodiment, most of the technologies are the same as in Embodiment 1. The difference is that this embodiment also introduces the fault judgment of the battery based on the power-down rate of the first battery. In addition, the other technologies are the same as those in Embodiment 1. The same as in Embodiment 1 and will not be repeated here. As shown in Figure 4, the details are as follows:

Step S60: During the battery replacement process, obtain the battery information of the first battery.

In this embodiment, the battery information includes a power-down rate, and the power-down rate is based on the change in battery power per unit time, for example, the percentage decrease in battery power within an hour.

In one embodiment, the cloud system communicates with the vehicle's built-in battery management system to collect remaining power information of the first battery in real time. In this implementation, the battery management system sends these data to the cloud for further analysis.

After receiving this data, the cloud system will store and process each power reading. By comparing and calculating the continuous power readings, the cloud can calculate the change in power of the first battery within a specific period of time, and calculate its power loss rate accordingly.

In this embodiment, the health status and potential faults of the battery are detected in a timely manner based on the power-down rate of the first battery.

Step S70: Determine whether the first battery is faulty based on the battery information of the first battery.

In one embodiment, a method for determining whether the first battery has failed is provided. In this method, the battery information includes the power-down rate. In this embodiment, the power-down rate is used to determine the fault. Specifically, check whether the power-down rate exceeds the preset range. This normal range is determined based on extensive experimental data and technical specifications provided by the battery manufacturer. If the power loss rate exceeds this range, it is judged that the first battery has failed, the system will issue a fault warning, and contact experts for further judgment or ask nearby maintenance personnel to go to the nearest location for inspection.

This cloud-based battery fault judgment and processing mechanism not only greatly improves vehicle safety, but also provides drivers and car owners with more convenient and efficient services.

In another embodiment, another method for determining whether the first battery fails is provided. In this method, the battery information includes the remaining power of the first battery at different times and its corresponding time information. In this implementation, modern machine learning technology is used to achieve more accurate and efficient fault detection. Preferably, this embodiment uses neural network technology to determine the possibility of failure. Specifically, the battery information is input into the trained neural network to obtain the fault judgment result.

Preferably, in this embodiment, the neural network is a multi-layer feedforward network, which accepts the battery's historical power information and corresponding time points as input, and outputs a value representing the battery failure rate. The structure of this neural network includes an input layer, multiple hidden layers and an output layer. The input layer is mainly responsible for receiving the battery's historical power information and its corresponding time data. The hidden layer plays a key role, using specific activation functions, such as ReLU, Sigmoid or Tanh, to perform nonlinear transformation and feature extraction on the data. The main task of these activation functions is to add nonlinear properties to the network so that it can better fit and process complex data patterns. The output layer provides a numerical value indicating the health status of the battery. For example, an output close to 0 may indicate a healthy battery, while an output close to 1 may mean the battery may be faulty.

The output layer is the last layer of the neural network and its purpose is to provide a clear numerical output that represents the battery's health status or possible failure rate. In order to simplify the judgment process, the output value is designed to be a value between 0 and 1. For example, if the output value is close to 0, it means the battery is healthy and has no obvious signs of failure. On the contrary, an output value close to 1 indicates that the battery has a high probability of failure.

By adopting this neural network-based method, it can not only provide more accurate battery fault judgment, but also be able to adapt to a variety of battery technologies and different application scenarios to ensure the optimization of vehicle safety and performance.

It should be pointed out that although the various steps are described in a specific order in the above embodiments, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in other sequences, and these changes are within the scope of the present invention.

Furthermore, the present invention also provides a vehicle engine control device during battery replacement.

Referring to FIG. 5 , FIG. 5 is a main structural block diagram of a vehicle engine control device during battery replacement according to an embodiment of the present invention.

As shown in FIG. 5 , the vehicle engine control device during battery replacement in the embodiment of the present invention mainly includes an initial power test module 11 , a used power detection module 12 and a vehicle-mounted function limitation module 13 .

In some embodiments, one or more of the initial power detection module 11 , the usage power detection module 12 and the vehicle function definition module 13 can be combined into one module. In one implementation, the description of the specific implementation of the function may refer to steps S10-S30.

In one embodiment, the device includes: an initial power check module 11: in response to a power swap command, determines whether the power of the first battery can meet the use of vehicle functions during the power swap; a usage power detection module 12: determines whether the power of the first battery is sufficient for the battery swap. Whether the power of the first battery can meet the preset function restriction conditions during the process; the vehicle function limiting module 13: based on whether the power of the first battery can meet the use of the vehicle functions during the power replacement period and the first battery during the power replacement process Selectively limit vehicle functions based on the judgment result of whether the battery capacity can meet the preset function restriction conditions. In one implementation, the description of the specific implementation of the function may refer to steps S10-S30.

The above-mentioned vehicle engine control device is used to execute the embodiment of the vehicle engine control method during automobile battery swapping shown in Figure 1. The technical principles, technical problems solved and technical effects produced by the two are similar. This technology Those skilled in the art can clearly understand that for the convenience and simplicity of description, for the specific working process and related instructions of the vehicle engine control device when the vehicle is changing battery, please refer to the content described in the embodiment of the vehicle engine control method when the vehicle is changing battery. , which will not be described again here.

Those skilled in the art can understand that the present invention can implement all or part of the process in the method of the above-mentioned embodiment, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. , when the computer program is executed by the processor, the steps of each of the above method embodiments can be implemented. Among them, computer programs include computer programs, which can be in source code form, object code form, executable files or some intermediate forms, etc. Computer-readable storage media may include: any entity or device capable of carrying a computer program, media, USB flash drives, mobile hard drives, magnetic disks, optical disks, computer memory, read-only memory, random access memory, electrical carrier signals, telecommunications signals, and Software distribution media, etc. It should be noted that the content contained in the computer-readable storage medium can be appropriately added or deleted according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media Storage media does not include electrical carrier signals and telecommunications signals.

Furthermore, the present invention also provides a control device. In an embodiment of the control device according to the present invention, the control device includes a processor and a storage device. The storage device can be configured to store a program for executing the vehicle engine control method when exchanging power in the vehicle according to the above method embodiment. The processor can be configured to It is configured to execute a program in the storage device, which program includes but is not limited to a program that executes the vehicle engine control method during battery replacement of the vehicle according to the above method embodiment. For ease of explanation, only the parts related to the embodiments of the present invention are shown. If specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The control device may be a control device device including various electronic devices.

Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of a computer-readable storage medium according to the present invention, the computer-readable storage medium can be configured to store a program for executing the vehicle engine control method during battery replacement in the above method embodiment, and the program can be loaded by a processor. And run to realize the above-mentioned car machine control method when the car is changing power. For ease of explanation, only the parts related to the embodiments of the present invention are shown. If specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, in the embodiment of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

Further, it should be understood that since the settings of each module are only to illustrate the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or Part of the combination of software and hardware. Therefore, the number of individual modules in the figure is only illustrative.

Those skilled in the art can understand that various modules in the device can be split or combined adaptively. Such splitting or merging of specific modules will not cause the technical solutions to deviate from the principles of the present invention. Therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

The relevant user personal information that may be involved in each embodiment of this application is strictly in accordance with the requirements of laws and regulations, following the principles of legality, legitimacy and necessity, and is based on the reasonable purpose of the business scenario, and is processed proactively provided by users during the use of products/services. Or personal information generated from the use of products/services and obtained with the user's authorization.

The user's personal information processed by the applicant will vary depending on the specific product/service scenario. It must be based on the specific scenario where the user uses the product/service. It may involve the user's account information, device information, driving information, vehicle information or other information. Related Information. The applicant will treat users' personal information and its processing with a high degree of diligence.

The applicant attaches great importance to the security of users' personal information and has adopted reasonable and feasible security protection measures that comply with industry standards to protect users' information and prevent personal information from unauthorized access, public disclosure, use, modification, damage or loss.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A vehicle engine control method during battery swapping of a car, wherein the car includes a first battery and a second battery, wherein the second battery is replaced during the battery swapping process, characterized in that the method includes: In response to the battery swap command, determine whether the power of the first battery can satisfy the use of the vehicle functions during the battery swap period; Determine whether the power of the first battery can meet the preset functional restriction conditions during the battery replacement process; The vehicle-mounted functions are selectively restricted based on the judgment result of whether the power of the first battery can meet the use of the vehicle functions during the battery swapping period and whether the power of the first battery can meet the preset function restriction conditions during the battery swapping process. 2. The vehicle engine control method during battery swapping according to claim 1, characterized in that "determining whether the power of the first battery can satisfy the use of on-board functions during the battery swapping period" includes the following steps: Obtain the first remaining power of the first battery; Based on the first remaining power, it is determined whether the power of the first battery can satisfy the use of the vehicle-mounted functions during the battery replacement period. 3. The vehicle engine control method during car battery swapping according to claim 2, characterized in that "determining whether the power of the first battery during the battery swapping process can meet the preset functional restriction conditions" includes the following steps: Obtain the second remaining power of the first battery; Based on the second remaining power, it is determined whether the power of the first battery can meet the preset functional restriction conditions during the battery replacement process. 4. The vehicle engine control method during battery swapping according to claim 3, characterized in that "based on whether the power of the first battery can satisfy the use of on-board functions during the battery swapping period and the first battery during the battery swapping process. "Selective restriction of vehicle functions based on the judgment result of whether the battery's power can meet the preset function restriction conditions" includes the following steps: Based on the first remaining power and the second remaining power, restricting the first type of vehicle-mounted function or limiting the second type of vehicle-mounted function is selectively performed. 5. The vehicle engine control method during battery replacement according to claim 4, characterized in that: Obtain a preset first power threshold and a preset second power threshold, wherein the first power threshold and the second power threshold are both preset power thresholds corresponding to the remaining power; "According to the comparison of the first remaining power and the second remaining power, selectively restricting the first type of vehicle function or limiting the second type of vehicle function" includes the following steps: According to the comparison result between the first remaining power and the first power threshold and the comparison result between the second remaining power and the second power threshold, the first type of vehicle-mounted function or the second type of vehicle-mounted function is selectively restricted. 6. The vehicle engine control method during car battery replacement according to claim 5, characterized in that, "Based on the comparison between the first remaining power and the first power threshold and the second remaining power and the second power threshold. As a result, "selectively performing restrictions on the first type of vehicle functions or restricting the second type of vehicle functions" includes the following steps: If the first remaining power is less than or equal to the preset first power threshold, restrict the first type of vehicle function; If the first remaining power is greater than the preset first power threshold, obtain the second remaining power of the first battery and the preset second power threshold, until the second remaining power is less than or equal to the preset second power threshold, then limit The second category of vehicle functions. 7. The vehicle control method during battery swapping according to any one of claims 4-6, characterized in that after "restricting the second type of vehicle functions", it also includes: Obtain the third remaining power and the preset third power threshold. Until the third remaining power is less than or equal to the preset third power threshold, the third type of vehicle function is restricted, where the third power threshold is the corresponding remaining power. Preset power threshold. 8. A vehicle engine control device during battery swapping in a car, wherein the car includes a first battery and a second battery, wherein the second battery is replaced during the battery swapping process, characterized in that the device includes: Initial power check module: In response to the power replacement command, determine whether the power of the first battery can meet the use of on-board functions during the power replacement period; Use the power detection module: determine whether the power of the first battery can meet the preset functional restrictions during the battery replacement process; Vehicle function limitation module: selective restriction based on the judgment result of whether the power of the first battery can meet the use of vehicle functions during the battery swap and whether the power of the first battery can meet the preset function restriction conditions during the battery swap. Car functions. 9. A control device, comprising a processor and a storage device, the storage device being adapted to store a plurality of computer programs, characterized in that the computer program is adapted to be loaded and run by the processor to execute claims 1 to The vehicle engine control method during battery replacement according to any one of 7. 10. A computer-readable storage medium in which a plurality of computer programs are stored, wherein the computer program is adapted to be loaded and run by a processor to perform the car replacement process according to any one of claims 1 to 7. Electric vehicle control method.