CN115189606B - A method and control system for controlling generator output voltage - Google Patents
A method and control system for controlling generator output voltageInfo
- Publication number
- CN115189606B CN115189606B CN202210912065.8A CN202210912065A CN115189606B CN 115189606 B CN115189606 B CN 115189606B CN 202210912065 A CN202210912065 A CN 202210912065A CN 115189606 B CN115189606 B CN 115189606B
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- Prior art keywords
- whole vehicle
- electric quantity
- generator
- interval
- control information
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/008—Arrangements for controlling electric generators for the purpose of obtaining a desired output wherein the generator is controlled by the requirements of the prime mover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/45—Special adaptation of control arrangements for generators for motor vehicles, e.g. car alternators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
本申请公开一种发电机输出电压的控制方法和控制系统，该方法应用于控制器ECU，所述控制器ECU被配置为执行以下步骤：与发电机建立连接；根据获取的整车的电量、运行工况和整车用电量确定相应的控制信息，并发送给所述发电机，以控制所述发电机输出相应的电压。因为发电机发电需要消耗发动机的动能，将发电机的输出电压与整车状态的关联，使得发电机能够根据整车的运行状态输出不同的电压，从而降低发动机的动能消耗，达到节能减排的目的。
The present application discloses a method and control system for controlling the output voltage of a generator. The method is applied to a controller ECU, which is configured to perform the following steps: establishing a connection with the generator; determining corresponding control information based on the acquired vehicle's power level, operating conditions, and vehicle power consumption, and sending the corresponding control information to the generator to control the generator to output a corresponding voltage. Because the generator consumes the engine's kinetic energy to generate electricity, associating the generator's output voltage with the vehicle's state enables the generator to output different voltages depending on the vehicle's operating state, thereby reducing the engine's kinetic energy consumption and achieving the goal of energy conservation and emission reduction.
Description
Technical Field
The application relates to the technical field of generator control, in particular to a control method and a control system for generator output voltage.
Background
When the traditional generator works, as shown in fig. 1, after the ignition switch is turned on, the storage battery supplies power to the exciting winding, when the amplitude of a phase signal detected by the P-end detection module reaches a set threshold value, the control switch module of the regulator is turned on, the B+ end in the regulator supplies extra exciting current (220 mA) to the D+ end through the voltage resistor, the generator starts to operate, and the generator voltage rises along with the rising of the rotating speed. When the voltage of the generator rises to the electromotive force of the storage battery, the generator is changed from separate excitation to self-excitation.
When the generator output voltage rises to the set regulation upper limit, the regulator of the generator begins to operate. The regulator controls the switching off of the magnetic field circuit of the generator so that the output voltage of the generator decreases, and when the output voltage of the generator decreases to the regulation lower limit, the magnetic field circuit is turned on, the voltage of the generator increases, and this operation is circulated, thereby controlling the voltage of the generator within a certain range, typically 28.3±0.3V.
According to the conventional working principle of the generator, the regulator regulates the generator according to the output voltage of the generator. In the whole vehicle, the generator is connected with the storage battery in parallel, and the generator can charge the storage battery as long as the voltage of the storage battery is lower than that of the generator. The working logic of the generator is too single, the generator cannot be connected with the state of the whole vehicle, and the generator still works to generate power and output high voltage under the condition of sufficient level electric quantity or no need of power generation. The generator needs to consume the kinetic energy of the engine when generating electricity, so that the generator still works to generate electricity to output high voltage under the condition that the electric quantity of a storage battery is sufficient or the electricity does not need to be generated, and extra energy consumption can be caused.
Therefore, how to relate the operation of the generator to the whole vehicle state so as to achieve the purpose of reducing the energy consumption is a technical problem to be solved.
Disclosure of Invention
The application mainly aims to provide a control method and a control system for the output voltage of a generator, and aims to solve the technical problem that the generator still works to generate power to output high voltage under the condition that the electric level electric quantity is sufficient or power generation is not needed, and extra energy consumption is caused.
In a first aspect, the present application provides a method of controlling the output voltage of a generator, applied in a controller ECU configured to perform the steps of:
Establishing connection with a generator;
Corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage.
In some embodiments, the determining the corresponding control information according to the obtained electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator specifically includes the following steps:
determining that the electric quantity of the whole vehicle is in a power shortage interval, a sufficient interval or an excess interval;
determining the running condition of the whole vehicle as an acceleration running condition, a uniform running condition or a deceleration running condition;
determining that the whole vehicle electricity consumption is in a high electricity consumption interval, a medium electricity consumption interval and a low electricity consumption interval;
And determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator.
In some embodiments of the present invention,
The method for determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle and sending the corresponding control information to the generator specifically comprises the following steps:
When the electric quantity of the whole vehicle is in a power shortage interval, or when the electric quantity of the whole vehicle is in a medium electric quantity interval and the whole vehicle is in a speed reduction running condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a speed reduction running condition and the electric quantity of the whole vehicle is in a high electric quantity interval, determining to send control information for improving output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in an acceleration running working condition and the electric quantity of the whole vehicle is in a high power consumption interval, or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in a constant speed running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a deceleration running working condition and the electric quantity of the whole vehicle is in a medium power consumption interval or a high power consumption interval, determining control information for sending normal output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a low electric quantity interval, or when the electric quantity of the whole vehicle is in an excessive interval, the whole vehicle is in a uniform running working condition, and the electric quantity of the whole vehicle is in a high electric quantity interval and a medium electric quantity interval, determining to send control information for reducing output voltage to the generator;
Or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in an acceleration running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a constant-speed running working condition and the electric quantity of the whole vehicle is in a low-power consumption interval, determining to send control information for stopping outputting voltage to the generator.
In some embodiments, the following steps are also performed:
and sending response time control information to the generator according to the acquired running state of the engine so as to control the power generation response time of the generator.
In some embodiments, the sending response time control information to the generator according to the acquired operation state of the engine to control the power generation response time of the generator specifically includes the following steps:
And if the rotating speed of the engine is smaller than the set rotating speed, sending response time control information to the generator so as to prolong the response time of the excitation terminal of the generator.
In some embodiments, the following steps are also performed:
And if the acquired ambient temperature exceeds a set temperature threshold, sending the stopping output control information to the engine so as to control the generator to stop outputting.
In some embodiments, the following steps are also performed:
the power generator is connected with a regulator of the power generator through a LIN bus;
And sending the control information to the regulator through a LIN bus, so that the regulator controls the output voltage of the generator according to the control information.
In some embodiments, the following steps are also performed:
and receiving actual output voltage information of the generator and rotating speed information of the generator returned by the regulator, and determining whether the generator operates according to the control information.
In some embodiments, the control information includes:
A target output voltage of the generator.
In a second aspect, the application also provides a control system for the output voltage of a generator, the system comprising a controller ECU configured to:
Establishing connection with a generator;
Corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage.
The application provides a control method and a control system for output voltage of a generator, wherein the method is applied to a controller ECU, and the controller ECU is configured to establish connection with the generator, determine corresponding control information according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and send the corresponding control information to the generator so as to control the generator to output corresponding voltage. Because the generator generates power and consumes the kinetic energy of the engine, the output voltage of the generator is related to the state of the whole vehicle, so that the generator can output different voltages according to the running state of the whole vehicle, the kinetic energy consumption of the engine is reduced, and the purposes of energy conservation and emission reduction are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of a conventional generator;
Fig. 2 is a flow chart of a method for controlling output voltage of a generator according to an embodiment of the present application;
FIG. 3 is a schematic circuit diagram of a generator connected to a controller ECU;
FIG. 4 is a schematic diagram of a control system for output voltage of a generator according to an embodiment of the present application;
FIG. 5 is a schematic diagram of LIN bus information transfer;
fig. 6 is a schematic flow chart for controlling the generator to output corresponding voltages.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
The embodiment of the application provides a control method and a control system for output voltage of a generator. The control method of the generator output voltage can be applied to electronic controllers such as a controller ECU.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 2, fig. 2 is a flow chart of a method for controlling output voltage of a generator according to an embodiment of the application. The method is applied in a controller ECU (Electronic Control Unit), which is configured to perform the following steps:
s1, establishing connection with a generator;
And S2, corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage.
Specifically, as shown in fig. 3 and 4, the controller ECU is connected to the regulator of the generator through a LIN bus, and transmits the control information to the regulator through the LIN bus, so that the regulator controls the output voltage of the generator according to the control information.
Wherein the control information includes a target output voltage of the engine.
In some embodiments, the determining the corresponding control information according to the obtained electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator specifically includes the following steps:
determining that the electric quantity of the whole vehicle is in a power shortage interval, a sufficient interval or an excess interval;
determining the running condition of the whole vehicle as an acceleration running condition, a uniform running condition or a deceleration running condition;
determining that the whole vehicle electricity consumption is in a high electricity consumption interval, a medium electricity consumption interval and a low electricity consumption interval;
And determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator.
It is worth to say that the electric quantity of the whole vehicle obtained by the ECU is the state of charge (SOC) of the whole vehicle storage battery. The electricity consumption interval, the sufficient interval and the surplus interval of the electric quantity of the whole vehicle can be set according to experience or requirements, for example, the 0-60% interval of the electric quantity of the storage battery can be set as the electricity consumption interval, the 61-80% interval of the electric quantity is set as the sufficient interval, and the 81-100% interval of the electric quantity is set as the surplus interval. The speed of the whole vehicle can be monitored through a vehicle speed sensor and then sent to the ECU, and the ECU judges that the whole vehicle is currently in an acceleration running working condition, a uniform running working condition or a deceleration running working condition. The interval of the whole vehicle electricity consumption can also be set according to experience or specific requirements.
Specifically, the determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator specifically includes the following steps:
When the electric quantity of the whole vehicle is in the power shortage interval, the ECU determines to send control information for improving the output voltage to the generator so as to improve the output voltage of the generator and rapidly charge the storage battery to ensure the electric quantity of the storage battery no matter the running working condition of the whole vehicle and the electric quantity of the whole vehicle. Or when the electric quantity of the whole vehicle is in a medium electric quantity interval and the whole vehicle is in a deceleration running working condition, the ECU determines to send control information for improving the output voltage to the generator no matter how the electric quantity of the whole vehicle is. Because the whole vehicle runs at a reduced speed, the load of the whole vehicle engine is smaller, so that the output voltage of the generator can be increased to charge the storage battery. Or when the electric quantity of the whole vehicle is in an excess region, the whole vehicle is in a deceleration running working condition, and the electric quantity of the whole vehicle is in a high electric quantity region, the control information for improving the output voltage is determined to be sent to the generator so as to meet the electric quantity of the whole vehicle, and when the whole vehicle is in a deceleration running state and the electric quantity of the battery is detected to be not excessive, the ECU controls the generator to improve the output voltage to charge the storage battery, and the energy is recovered by braking.
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration running working condition, and the electric quantity of the whole vehicle is in a high electric quantity interval, the ECU determines to send control information of normal output voltage to the generator so as to enable the generator to output the normal voltage. Or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in a uniform-speed running working condition, the ECU determines to send control information of normal output voltage to the generator no matter what interval the electric quantity of the whole vehicle is in. Or when the electric quantity of the whole vehicle is in an excess interval, the whole vehicle is in a deceleration running working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a high electric quantity interval, determining control information for sending normal output voltage to the generator.
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a low electric quantity interval, the ECU determines to send control information for reducing the output voltage to the generator so as to control the generator to reduce the output voltage. Because the electric quantity of the storage battery is sufficient, the electricity consumption is in a medium electricity consumption interval or a low electricity consumption interval, the electric quantity of the current storage battery can meet the running requirement of the vehicle, and the whole vehicle is in an acceleration working condition, so that the load of the current generator is larger, the generator is controlled to reduce the output voltage, the load of the engine is reduced, the power consumption of the engine is reduced, and the effects of energy conservation and emission reduction are achieved. Or when the electric quantity of the whole vehicle is in an excess region, the whole vehicle is in a uniform-speed running working condition, and the electric quantity of the whole vehicle is in a high-power-consumption region and a medium-power-consumption region, determining to send control information for reducing output voltage to the generator.
And when the electric quantity of the whole vehicle is in an excessive interval and the whole vehicle is under an acceleration running working condition, determining to send control information of stopping output voltage to the generator no matter what interval the electric quantity of the whole vehicle is in, so as to control the generator to stop generating. Or when the electric quantity of the whole vehicle is in an excess interval, the whole vehicle is in a uniform-speed running working condition, and the electric quantity of the whole vehicle is in a low-power-consumption interval, determining to send control information for stopping outputting voltage to the generator.
The voltage of the generator is controlled according to the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, so that the voltage of the generator is controlled under the condition of meeting the electric quantity of the whole vehicle, the generator is used for accurately charging the storage battery, the load of the engine is reduced, the power consumption of the engine is reduced, and the effects of energy conservation and emission reduction are achieved.
It should be noted that specific voltage values of the engine for increasing the output voltage, the normal output voltage and decreasing the output voltage may be set according to experience or requirements, in the embodiment of the present application, the set voltage value of the increasing voltage is 31V, the set value of the decreasing voltage is 22V, and the voltage value of the normal output voltage may be determined in this interval according to specific requirements of vehicle operation. The regulator changes the output voltage of the generator by regulating the exciting current after receiving the control information of the ECU.
In some embodiments, the following steps are also performed:
And if the acquired ambient temperature exceeds a set temperature threshold, sending the stopping output control information to the engine so as to control the generator to stop outputting.
Specifically, the ECU obtains the temperature of the whole vehicle electrical equipment and mechanical equipment through a temperature sensor, and if the obtained temperature exceeds a set temperature threshold value, the ECU sends control information for stopping outputting voltage to the regulator so as to enable the machine adjusting control generator to cut off exciting current, the generator does not generate electricity, and the generator is prevented from being invalid due to high temperature.
In some embodiments, response time control information is sent to the generator to control the power generation response time of the generator according to the acquired operating state of the engine.
Specifically, if the rotational speed of the engine is less than the set rotational speed, response time control information is sent to the generator to extend the response time of the excitation terminal of the generator. When the engine is in low-rotation-speed and heavy-load, the load response time is improved, the generator is delayed to generate electricity, the engine shake is reduced, and the comfort is improved.
In some embodiments, the ECU sensor is further configured to obtain road condition information, determine whether to control the generator to generate electricity or delay generating electricity according to different road conditions, for example, when the whole vehicle runs on a climbing road condition, the load of the generator is large, and cut off the magnetic field circuit, so that the generator does not generate electricity, and the torque load of the whole vehicle is reduced.
In some embodiments, the ECU further performs the steps of:
and receiving actual output voltage information of the generator and rotating speed information of the generator returned by the regulator, and determining whether the generator operates according to the control information.
As shown in fig. 5, when the ECU transmits control information to control the output voltage of the generator through the LIN bus, the format of the communication frame is divided into a master task and a slave task.
The main task comprises a synchronization interval, a synchronization section and an identification section. The synchronization interval is used for notification and synchronization when the ECU and the tuning machine start communicating. The synchronization section is used for detecting and synchronizing the communication speed. The identification section is used for identifying the ID number special for the regulator, and is particularly used for identifying different LIN devices on the vehicle through the ID number and identifying whether an instruction or feedback information of the ECU is received or not through the LIN devices on the vehicle to the ECU.
The slave tasks include a regulator feedback data segment and a data validation segment. The regulator machine feedback data segment is used for feeding back a regulator data regulator to the ECU, and the regulator can feed back the information of the duty ratio information of the exciting terminal (which is used for determining the load condition of the generator), the temperature of a regulator chip, the current electric and mechanical structure temperature of the generator, exciting current feedback information and the rotating speed of the generator to the ECU. And the data verification section is used for verifying the information returned by the dispatching machine so as to determine whether the generator operates according to the control information and output target voltage.
The ECU sends control information to the regulator according to the running condition of the whole vehicle to control the regulator to complete the following functions:
Regulating voltage to a set value, wherein the voltage set value is in the interval of 22V-31V, controlling the Load Response (LRC) time of the generator, wherein the time interval is 0-15S, controlling the Load Response (LRC) cut-off speed of the generator, wherein the speed interval is 2400RPM-8000RPM, controlling the exciting current of the generator, wherein the exciting current interval is 0A-15A, and controlling the generator to stop working when the temperature exceeds a temperature threshold value so as to perform high-temperature cut-off protection.
As shown in fig. 6, the ECU transmits control information to change the output voltage of the generator in such a manner that the output voltage of the generator is determined by the exciting current, and the larger the exciting current is, the larger the output voltage of the generator is.
Excitation current specification 1.Ecu output id=0x29 signal, set generator target output voltage, regulator receive command change generator output voltage by adjusting excitation current.
The regulator feeds back and outputs an id=0x11 signal to the ECU, the current exciting current information of the generator and the state information of the generator are contained in the TX1 signal message, and the regulator can also feed back the actual voltage or the rotating speed signal (id=0x12) of the generator at TX2 according to the requirement of the ECU.
In the test, the ECU is configured according to the control method of the output voltage of the generator, two LIN communication generators are respectively assembled on the whole vehicle and matched with a control circuit of the whole vehicle, and the test is carried out according to the fuel consumption measuring method of the GB T27840-2011 heavy commercial vehicle. Through tests, the average power consumption of the 80A LIN communication function generator is reduced by 500W or more under the working condition of C-WTVC, and the average power consumption of the 110A LIN communication function generator is reduced by 600W or more. The power generator is assembled on a real vehicle engine, and is calculated according to the power of the engine of 540 horsepower and the oil consumption of 32 liters of hundred kilometers, 0.064 liter of the 110A LIN communication function power generator can be saved every 100 kilometers, and if the whole vehicle runs for 20 kilometers per year, the LIN communication power generator can save about 128 liters per year (640 yuan).
The application provides a control method and a control system for output voltage of a generator, wherein the method is applied to a controller ECU, and the controller ECU is configured to establish connection with the generator, determine corresponding control information according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and send the corresponding control information to the generator so as to control the generator to output corresponding voltage. Because the generator generates power and consumes the kinetic energy of the engine, the output voltage of the generator is related to the state of the whole vehicle, so that the generator can output different voltages according to the running state of the whole vehicle, the kinetic energy consumption of the engine is reduced, and the purposes of energy conservation and emission reduction are achieved.
Fig. 4 is a schematic diagram of a control system for output voltage of a generator according to an embodiment of the present application, as shown in fig. 4.
The system includes a controller ECU configured to:
Establishing connection with a generator;
Corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage.
Wherein the control information includes:
A target output voltage of the generator.
Wherein, the corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the signal to the generator specifically comprises the following steps:
determining that the electric quantity of the whole vehicle is in a power shortage interval, a sufficient interval or an excess interval;
determining the running condition of the whole vehicle as an acceleration running condition, a uniform running condition or a deceleration running condition;
determining that the whole vehicle electricity consumption is in a high electricity consumption interval, a medium electricity consumption interval and a low electricity consumption interval;
And determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the corresponding control information to the generator.
Wherein, the
The method for determining corresponding control information according to different combinations of the electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle and sending the corresponding control information to the generator specifically comprises the following steps:
When the electric quantity of the whole vehicle is in a power shortage interval, or when the electric quantity of the whole vehicle is in a medium electric quantity interval and the whole vehicle is in a speed reduction running condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a speed reduction running condition and the electric quantity of the whole vehicle is in a high electric quantity interval, determining to send control information for improving output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in an acceleration running working condition and the electric quantity of the whole vehicle is in a high power consumption interval, or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in a constant speed running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a deceleration running working condition and the electric quantity of the whole vehicle is in a medium power consumption interval or a high power consumption interval, determining control information for sending normal output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a low electric quantity interval, or when the electric quantity of the whole vehicle is in an excessive interval, the whole vehicle is in a uniform running working condition, and the electric quantity of the whole vehicle is in a high electric quantity interval and a medium electric quantity interval, determining to send control information for reducing output voltage to the generator;
Or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in an acceleration running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a constant-speed running working condition and the electric quantity of the whole vehicle is in a low-power consumption interval, determining to send control information for stopping outputting voltage to the generator.
Wherein the controller ECU further performs the steps of:
and sending response time control information to the generator according to the acquired running state of the engine so as to control the power generation response time of the generator.
The method for controlling the power generation response time of the generator specifically comprises the following steps of:
And if the rotating speed of the engine is smaller than the set rotating speed, sending response time control information to the generator so as to prolong the response time of the excitation terminal of the generator.
Wherein the ECU further performs the steps of:
And if the acquired ambient temperature exceeds a set temperature threshold, sending the stopping output control information to the engine so as to control the generator to stop outputting.
Wherein the ECU further performs the steps of:
the power generator is connected with a regulator of the power generator through a LIN bus;
And sending the control information to the regulator through a LIN bus, so that the regulator controls the output voltage of the generator according to the control information.
Wherein the ECU further performs the steps of:
and receiving actual output voltage information of the generator and rotating speed information of the generator returned by the regulator, and determining whether the generator operates according to the control information.
It should be noted that, for convenience and brevity of description, specific working procedures of the above-described apparatus and each module and unit may refer to corresponding procedures in the foregoing embodiments, and are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (8)
1. A method of controlling the output voltage of a generator, characterized in that it is applied to a controller ECU configured to perform the steps of:
Establishing connection with a generator;
Corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage;
wherein, the corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the signal to the generator specifically comprises the following steps:
determining that the electric quantity of the whole vehicle is in a power shortage interval, a sufficient interval or an excess interval;
determining the running condition of the whole vehicle as an acceleration running condition, a uniform running condition or a deceleration running condition;
determining that the whole vehicle electricity consumption is in a high electricity consumption interval, a medium electricity consumption interval and a low electricity consumption interval;
Corresponding control information is determined according to different combinations of the electric quantity of the whole vehicle, the operation working condition and the electric quantity of the whole vehicle and is sent to the generator;
wherein the corresponding control information is determined according to different combinations of the electric quantity of the whole vehicle, the operation working condition and the electric quantity of the whole vehicle, and sending the signal to the generator specifically comprises the following steps:
When the electric quantity of the whole vehicle is in a power shortage interval, or when the electric quantity of the whole vehicle is in a medium electric quantity interval and the whole vehicle is in a speed reduction running condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a speed reduction running condition and the electric quantity of the whole vehicle is in a high electric quantity interval, determining to send control information for improving output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in an acceleration running working condition and the electric quantity of the whole vehicle is in a high power consumption interval, or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in a constant speed running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a deceleration running working condition and the electric quantity of the whole vehicle is in a medium power consumption interval or a high power consumption interval, determining control information for sending normal output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a low electric quantity interval, or when the electric quantity of the whole vehicle is in an excessive interval, the whole vehicle is in a uniform running working condition, and the electric quantity of the whole vehicle is in a high electric quantity interval and a medium electric quantity interval, determining to send control information for reducing output voltage to the generator;
Or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in an acceleration running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a constant-speed running working condition and the electric quantity of the whole vehicle is in a low-power consumption interval, determining to send control information for stopping outputting voltage to the generator.
2. The method for controlling the output voltage of a generator according to claim 1, further comprising the step of:
and sending response time control information to the generator according to the acquired running state of the engine so as to control the power generation response time of the generator.
3. The method for controlling the output voltage of a generator according to claim 2, wherein said transmitting response time control information to said generator according to the acquired operation state of the engine to control the power generation response time of said generator comprises the steps of:
And if the rotating speed of the engine is smaller than the set rotating speed, sending response time control information to the generator so as to prolong the response time of the excitation terminal of the generator.
4. The method of controlling the output voltage of a generator according to claim 2, further comprising the step of:
And if the acquired ambient temperature exceeds a set temperature threshold, sending the stopping output control information to the engine so as to control the generator to stop outputting.
5. The method for controlling the output voltage of a generator according to claim 1, further comprising the step of:
the power generator is connected with a regulator of the power generator through a LIN bus;
And sending the control information to the regulator through a LIN bus, so that the regulator controls the output voltage of the generator according to the control information.
6. The method for controlling the output voltage of a generator according to claim 5, further comprising the step of:
and receiving actual output voltage information of the generator and rotating speed information of the generator returned by the regulator, and determining whether the generator operates according to the control information.
7. The method for controlling the output voltage of a generator according to claim 1, wherein the control information includes:
A target output voltage of the generator.
8. A control system for the output voltage of a generator, comprising:
the ECU is configured to:
Establishing connection with a generator;
Corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the running working condition and the electric quantity of the whole vehicle and is sent to the generator so as to control the generator to output corresponding voltage;
wherein, the corresponding control information is determined according to the acquired electric quantity of the whole vehicle, the operation condition and the electric quantity of the whole vehicle, and sending the signal to the generator specifically comprises the following steps:
determining that the electric quantity of the whole vehicle is in a power shortage interval, a sufficient interval or an excess interval;
determining the running condition of the whole vehicle as an acceleration running condition, a uniform running condition or a deceleration running condition;
determining that the whole vehicle electricity consumption is in a high electricity consumption interval, a medium electricity consumption interval and a low electricity consumption interval;
Corresponding control information is determined according to different combinations of the electric quantity of the whole vehicle, the operation working condition and the electric quantity of the whole vehicle and is sent to the generator;
wherein the corresponding control information is determined according to different combinations of the electric quantity of the whole vehicle, the operation working condition and the electric quantity of the whole vehicle, and sending the signal to the generator specifically comprises the following steps:
When the electric quantity of the whole vehicle is in a power shortage interval, or when the electric quantity of the whole vehicle is in a medium electric quantity interval and the whole vehicle is in a speed reduction running condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a speed reduction running condition and the electric quantity of the whole vehicle is in a high electric quantity interval, determining to send control information for improving output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in an acceleration running working condition and the electric quantity of the whole vehicle is in a high power consumption interval, or when the electric quantity of the whole vehicle is in a sufficient interval and the whole vehicle is in a constant speed running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a deceleration running working condition and the electric quantity of the whole vehicle is in a medium power consumption interval or a high power consumption interval, determining control information for sending normal output voltage to the generator;
Or when the electric quantity of the whole vehicle is in a sufficient interval, the whole vehicle is in an acceleration working condition, and the electric quantity of the whole vehicle is in a medium electric quantity interval or a low electric quantity interval, or when the electric quantity of the whole vehicle is in an excessive interval, the whole vehicle is in a uniform running working condition, and the electric quantity of the whole vehicle is in a high electric quantity interval and a medium electric quantity interval, determining to send control information for reducing output voltage to the generator;
Or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in an acceleration running working condition, or when the electric quantity of the whole vehicle is in an excess interval and the whole vehicle is in a constant-speed running working condition and the electric quantity of the whole vehicle is in a low-power consumption interval, determining to send control information for stopping outputting voltage to the generator.
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| CN111934584A (en) * | 2020-08-03 | 2020-11-13 | 中国第一汽车股份有限公司 | Generator voltage control method, device, system and storage medium |
| CN112290654A (en) * | 2020-10-22 | 2021-01-29 | 东风商用车有限公司 | Intelligent power generation method and system for commercial vehicle |
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| CN108263214B (en) * | 2016-12-30 | 2020-03-24 | 北京汽车集团有限公司 | Energy control method and device for low-voltage storage battery of hybrid electric vehicle |
| CN108544937B (en) * | 2018-03-23 | 2022-04-08 | 奇瑞汽车股份有限公司 | Automobile storage battery charging and discharging management method and system |
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| CN112290654A (en) * | 2020-10-22 | 2021-01-29 | 东风商用车有限公司 | Intelligent power generation method and system for commercial vehicle |
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