CN117400904B - Operation mode determining method and device based on virtual double batteries and storage medium - Google Patents
Operation mode determining method and device based on virtual double batteries and storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The application discloses a method and a device for determining an operation mode based on virtual double batteries and a computer readable storage medium, wherein the method and the device are used for determining the initial electric quantity of the virtual double batteries according to the initial electric quantity of an SOC (system on a chip) by detecting the power-on of a vehicle, and the virtual double batteries comprise an energy recovery battery and a driving power generation battery; the method comprises the steps of determining a battery state of a vehicle according to a vehicle running mode, obtaining an SOC electric quantity based on the battery state, an initial electric quantity of an energy recovery battery and an initial electric quantity of a driving power generation battery, determining the vehicle running mode according to the SOC electric quantity and the whole vehicle required power, solving the technical problem that in the related art, the vehicle running mode is defined in a dividing mode according to two dimensions of the SOC and the engine torque, but the output torque of the engine does not completely reflect the output capability of the whole vehicle, converting the output torque of the engine into the whole vehicle power, and reflecting the output capability of the whole vehicle.
Description
Technical Field
The application relates to the field of automobile control, in particular to a virtual double-battery-based operation mode determining method and device and a computer-readable storage medium.
Background
With the popularity of automobiles, a power system of a hybrid automobile (hybrid automobile for short) includes an engine driving system and a motor driving system, and power required for running of the hybrid automobile can be independently provided by a single driving system or can be jointly provided by two driving systems. The battery is an important component of the motor driving system, can be used as an energy source of the motor driving system to output electric energy outwards, and can also be used for storing the electric energy generated when the motor is in a charging mode, so that the state of charge (namely SOC) of the battery in the whole vehicle system is a key point of energy management of the hybrid electric vehicle. Thus, the operating modes of the vehicle switch between engine alone, traction, hybrid, and electric only modes, depending on the different power battery state of charge intervals. However, in the related art, the vehicle operation mode is defined in a divided manner according to two dimensions of the SOC and the engine torque, but the output torque of the engine does not completely reflect the output capability of the whole vehicle, so there is a limitation in the definition thereof.
Disclosure of Invention
The application provides a method and a device for determining an operation mode of a virtual double battery and a computer readable storage medium, which can solve the technical problem that the output torque of an engine does not completely reflect the output capacity of a whole vehicle in the prior art, so that the definition of the engine has certain limitation.
In a first aspect, an embodiment of the present application provides a method for determining an operation mode based on a virtual battery, where the method for controlling an operation mode based on a virtual battery includes:
Detecting the power-on of a vehicle, and determining the initial electric quantity of a virtual double battery according to the initial electric quantity of the SOC, wherein the virtual double battery comprises an energy recovery battery and a driving power generation battery;
determining a battery state of the vehicle according to a vehicle running mode;
Obtaining SOC (state of charge) electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
and determining a vehicle running mode according to the SOC electric quantity and the whole vehicle required power.
With reference to the first aspect, in an implementation manner, the determining a vehicle operation mode according to the SOC electric quantity and the vehicle required power includes:
When the SOC whole vehicle required power is in a second preset power interval and the SOC electric quantity interval is in a first preset electric quantity interval, determining a vehicle running mode according to the energy recovery battery electric quantity;
if the electric quantity of the energy recovery battery is larger than a first preset threshold value, the vehicle running mode is a pure electric mode;
and if the electric quantity of the energy recovery battery is smaller than or equal to a first preset threshold value, the vehicle running mode is an engine-only mode.
With reference to the first aspect, in an implementation manner, the determining a vehicle operation mode according to the SOC electric quantity and the vehicle required power includes:
When the SOC whole vehicle required power is in a first preset power interval and the SOC electric quantity is in a first preset electric quantity interval, the vehicle running mode is a pure electric mode;
when the SOC whole vehicle required power is in a third preset power interval and the SOC electric quantity is in a second preset electric quantity interval, the vehicle running mode is an engine-only mode;
when the SOC whole vehicle required power is in a fourth preset power interval and the SOC electric quantity is in a third preset electric quantity interval, the vehicle running mode is a pure electric mode;
when the SOC whole vehicle required power is in a fifth preset power interval and the SOC electric quantity is in a third preset electric quantity interval, the vehicle running mode is a hybrid driving mode.
With reference to the first aspect, in an implementation manner, before determining the vehicle running mode according to the SOC electric quantity and the power required by the whole vehicle, determining that the vehicle running mode is a driving power generation mode when the SOC electric quantity is smaller than a second preset threshold.
With reference to the first aspect, in an implementation manner, the battery state of the vehicle includes a driving power generation battery state, and the determining, according to a vehicle operation mode, the battery state of the vehicle includes:
Determining whether the battery state of the vehicle is a driving power generation battery state according to the running mode of the vehicle;
if the running mode of the vehicle is detected to be running power generation or parking power generation, determining the battery state of the vehicle to be the running power generation battery state;
Or if the electric quantity of the energy recovery battery is detected to be full, and the vehicle running mode is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking, determining that the battery state of the vehicle is a running power generation battery state;
Or detecting that the electric quantity of the energy recovery battery is empty, and determining that the battery state of the vehicle is a running power generation battery state if the running mode of the vehicle is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking.
With reference to the first aspect, in one implementation manner, the battery state of the vehicle includes an energy recovery battery state, and after determining whether the battery state of the vehicle is a driving power generation battery state according to the vehicle operation mode, determining that the battery state of the vehicle is the energy recovery battery state if it is determined that the battery state of the vehicle is not the driving power generation battery state is further included.
With reference to the first aspect, in an implementation manner, the battery states of the vehicle include a driving power generation battery state and an energy recovery battery state, and the obtaining the SOC electric quantity based on the battery states, the initial electric quantity of the energy recovery battery, and the initial electric quantity of the driving power generation battery includes:
If the battery state of the vehicle is determined to be the running power generation battery state, and when the fact that the electric quantity of the running power generation battery is not full is detected, integrating the running power generation battery;
If the battery state of the vehicle is determined to be the energy recovery battery state, integrating the energy recovery battery;
and respectively acquiring the integrated electric quantity of the driving power generation battery, the integrated electric quantity of the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity.
With reference to the first aspect, in an implementation manner, the determining the initial power of the virtual double battery according to the initial power of the SOC includes:
If the initial SOC electric quantity is larger than a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is the initial SOC electric quantity minus the second preset threshold value, and determining that the initial electric quantity of the driving power generation battery is the second preset threshold value;
if the initial electric quantity of the SOC is smaller than or equal to a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is 0, and determining that the initial electric quantity of the driving power generation battery is the initial electric quantity of the SOC.
In a second aspect, an embodiment of the present application provides a virtual battery-double-based operation mode determining apparatus, including:
the first determining module is used for detecting the power-on of the vehicle and determining the initial electric quantity of the virtual double batteries according to the initial electric quantity of the SOC, wherein the virtual double batteries comprise an energy recovery battery and a driving power generation battery;
the second determining module is used for determining the battery state of the vehicle according to the running mode of the vehicle;
the obtaining module is used for obtaining the SOC electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
And the third determining module is used for determining a vehicle running mode according to the SOC electric quantity and/or the whole vehicle required power.
In a third aspect, an embodiment of the present application provides a computer readable storage medium including a processor, a memory, and a virtual dual battery-based operation mode determination program stored on the memory and executable by the processor, wherein the virtual dual battery-based operation mode determination program, when executed by the processor, implements the steps of the virtual dual battery-based operation mode determination method as described above.
The technical scheme provided by the embodiment of the application has the beneficial effects that:
The method comprises the steps of detecting power-on of a vehicle, determining initial electric quantity of a virtual double battery according to initial electric quantity of the SOC, determining battery states of the vehicle according to a vehicle operation mode, obtaining the SOC electric quantity based on the battery states, the initial electric quantity of the energy recovery battery and the initial electric quantity of the vehicle power generation battery, determining a vehicle operation mode according to the SOC electric quantity and the required power of the whole vehicle, and solving the technical problems that in the related art, the vehicle operation mode is defined in a dividing mode according to two dimensions of the SOC and the torque of an engine, but the output torque of the engine does not completely reflect the output capability of the whole vehicle, converting the output torque of the engine into the power of the whole vehicle, and reflecting the output capability of the whole vehicle.
Drawings
FIG. 1 is a flow chart of an embodiment of a virtual dual battery based operation mode determination method according to the present application;
FIG. 2 is a schematic diagram of functional modules of an embodiment of a virtual dual battery-based operation mode determining apparatus according to the present application;
Fig. 3 is a schematic diagram of a hardware structure of a vehicle according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. 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.
First, some technical terms in the present application are explained so as to facilitate understanding of the present application by those skilled in the art.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
In a first aspect, an embodiment of the present application provides a method for determining an operation mode based on a virtual battery.
In an embodiment, referring to fig. 1, fig. 1 is a flowchart illustrating a first embodiment of a virtual dual battery-based operation mode determining method according to the present application. As shown in fig. 1, the virtual battery-double-based operation mode determining method includes:
Step S10, detecting the power-on of a vehicle, and determining the initial electric quantity of a virtual double battery according to the initial electric quantity of the SOC, wherein the virtual double battery comprises an energy recovery battery and a driving power generation battery;
exemplary, a power-up signal of the vehicle is detected, and if the power-up signal is detected, the power-up of the vehicle is determined. And acquiring the initial SOC electric quantity, and determining the initial electric quantity of the virtual double batteries through the initial SOC electric quantity, wherein the automobile power battery is divided into two virtual batteries, namely an energy recovery battery and a driving power generation battery. For example, the initial SOC electrical quantity is obtained, and the initial SOC electrical quantity is determined in a halving manner to be the initial electrical quantity of the energy recovery battery and the initial electrical quantity of the driving power generation battery.
Step S20, determining the battery state of the vehicle according to the running mode of the vehicle;
illustratively, the battery state of the vehicle is determined according to the operating mode of the vehicle, including the energy recovery battery state and the drive recovery battery state. For example, if the running mode of the vehicle is the driving power generation mode or the parking power generation mode, the battery state is determined to be the driving power generation battery state. Otherwise, the television state is determined to be the energy recovery battery state.
Step S30, obtaining SOC (state of charge) electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
Exemplary, the battery state is determined, and the electric quantity information under the current battery state is obtained. For example, the current battery state is an energy recovery battery state, the discharging or charging information in the energy recovery battery state is obtained, the obtained discharging or charging information in the energy recovery battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery are added to obtain the SOC electric quantity, or the current battery state is a driving power generation battery state, the discharging or charging information in the driving power generation battery state is obtained, and the obtained discharging or charging information in the driving power generation battery state, the initial electric quantity of the driving power generation battery and the initial electric quantity of the energy recovery battery are added to obtain the SOC electric quantity.
And S40, determining a vehicle running mode according to the SOC electric quantity and the whole vehicle required power.
The method comprises the steps of obtaining the SOC electric quantity, obtaining the whole vehicle required power, and determining the vehicle running mode when the SOC electric quantity and the whole vehicle required power meet preset conditions. For example, when the SOC electric quantity and the whole vehicle required power meet preset intervals, a vehicle operation mode is determined, wherein the vehicle operation mode comprises a driving power generation mode, a pure electric mode, a pure engine mode and a hybrid driving mode.
In the embodiment, the initial electric quantity of the virtual double batteries is determined according to the initial electric quantity of the SOC, wherein the virtual double batteries comprise an energy recovery battery and a driving power generation battery, the battery state of the vehicle is determined according to the vehicle running mode, the SOC electric quantity is obtained based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery, and the vehicle running mode is determined according to the SOC electric quantity and the vehicle required power, so that the problem that the output torque of an engine is converted into the vehicle power in the related technology and the output capacity of the vehicle is reflected is solved.
Further, in an embodiment, the determining the vehicle operation mode according to the SOC electric quantity and the vehicle required power includes:
Step S41, when the SOC whole vehicle required power is in a second preset power interval and the SOC electric quantity interval is in a first preset electric quantity interval, determining a vehicle running mode according to the energy recovery battery power;
Step S42, if the electric quantity of the energy recovery battery is larger than a first preset threshold value, the vehicle running mode is a pure electric mode;
And step S43, if the electric quantity of the energy recovery battery is smaller than or equal to a first preset threshold value, the vehicle running mode is an engine-only mode.
The method comprises the steps of obtaining the required power of the whole SOC, comparing the obtained required power of the whole SOC with a second preset power interval, comparing the SOC electric quantity with a first preset electric quantity interval if the obtained required power of the whole SOC is in the second preset power interval, obtaining the SOC electric quantity in the first preset electric quantity interval, obtaining the energy recovery battery electric quantity, and determining the vehicle running mode through the energy recovery battery electric quantity. For example, the required power of the whole SOC is between P1 and P2, and the electric quantity of the SOC is between C1 and C2, wherein P1 is a load transfer surplus and deficient point, and P2 is an energy recovery electric energy utilization power point.
The method comprises the steps of comparing the electric quantity of the energy recovery battery with a first preset threshold value to determine a vehicle running mode, determining that the vehicle running mode is a pure electric mode (M) if the electric quantity of the energy recovery battery is larger than the first preset threshold value, and determining that the vehicle running mode is an engine-only mode (E) if the electric quantity of the energy recovery battery is smaller than or equal to the first preset threshold value. For example, the energy recovery battery power is greater than r, the vehicle running mode is determined to be the pure electric mode (M), the energy recovery battery power is less than or equal to r, the vehicle running mode is determined to be the pure engine mode (E), and r is a calibration value capable of avoiding repeated switching between the driving power generation mode and the pure electric mode.
In this embodiment, by considering the electric quantity of the energy recovery battery, the vehicle operation mode is determined to be the pure electric mode or the pure engine mode, so that the problem that the vehicle operation mode can be determined without calculating the underpower relation between the driving power generation battery and the energy recovery battery in the related art is solved.
Further, in an embodiment, the determining the vehicle operation mode according to the SOC electric quantity and the vehicle required power includes:
Step S44, when the required power of the whole SOC is in a first preset power interval and the SOC electric quantity interval is in the first preset electric quantity interval, the running mode of the vehicle is a pure electric mode;
step S45, when the SOC whole vehicle required power is in a third preset power interval and the SOC electric quantity interval is in a second preset electric quantity interval, the vehicle running mode is an engine-only mode;
Step S46, when the SOC whole vehicle required power is in a fourth preset power interval and the SOC electric quantity interval is in a third preset electric quantity interval, the vehicle running mode is a pure electric mode;
step S47, when the SOC whole vehicle required power is in the fifth preset power interval and the SOC electric quantity interval is in the third preset electric quantity interval, the vehicle running mode is a hybrid driving mode.
The method comprises the steps of determining that a vehicle running mode is a pure electric mode (M) when the required power of the whole SOC is 0-P1 and the electric quantity of the SOC is 0-C1, determining that the vehicle running mode is an engine-only mode (E) if the required power of the whole SOC is P2-P4 and the electric quantity of the SOC is C1-C2, determining that the vehicle running mode is the pure electric mode (M) if the required power of the whole SOC is P2-P3 and the electric quantity of the SOC is C2-C3, and determining that the vehicle running mode is a hybrid driving mode (M+E) if the required power of the whole SOC is P3 and the electric quantity of the SOC is C2-C3, wherein P3 is an optimal power generation power point.
In the embodiment, the vehicle running mode is determined by comparing the required power of the whole vehicle and the SOC electric quantity in different intervals, so that the accuracy of the vehicle running mode in the related technology is improved.
Further, in an embodiment, before determining the vehicle running mode according to the SOC electric quantity and the vehicle required power, the method further includes:
and S48, when the SOC electric quantity is smaller than a second preset threshold value, determining that the vehicle running mode is a driving power generation mode.
For example, when the SOC electric quantity is less than C1, the vehicle operation mode is determined to be the driving power generation mode.
In this embodiment, the vehicle running mode is determined to be the driving power generation mode by comparing the SOC electric quantity with the second preset threshold. The problem that the vehicle operation mode is frequently switched between driving power generation and pure electricity in the related art is solved.
Further, in an embodiment, the battery state of the vehicle includes a driving power generation battery state, and the determining the battery state of the vehicle according to the vehicle operation mode includes:
step S21, determining whether the battery state of the vehicle is a driving power generation battery state according to the running mode of the vehicle;
Step S22, if the running mode of the vehicle is detected to be running power generation or parking power generation, determining that the battery state of the vehicle is the running power generation battery state;
Step S23, or if the electric quantity of the energy recovery battery is detected to be full and the running mode of the vehicle is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking, determining that the battery state of the vehicle is a running power generation battery state;
Step S24, or detecting that the electric quantity of the energy recovery battery is empty, and determining that the battery state of the vehicle is a running power generation battery state if the running mode of the vehicle is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking.
Exemplary, according to the current vehicle running mode, whether the battery state of the vehicle is the running power generation battery state is determined, and if the vehicle running mode is detected to be the running power generation mode or the parking power generation mode, the battery state of the vehicle is determined to be the running power generation battery state. Or determining that the energy recovery battery is full, wherein the vehicle running mode is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking, and the battery state of the vehicle is determined to be a running power generation battery state. Or determining that the energy recovery battery is empty, and determining that the battery state of the vehicle is a running power generation battery state if the running mode of the vehicle is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking.
In this embodiment, whether the battery state is the running power generation battery state is determined by the running mode of the vehicle, so that the running power generation battery is adopted according to different running modes of the vehicle, and the problem that the efficiency of the whole vehicle is greatly reduced due to the loss of the charge and discharge efficiency of the motor and the battery caused by using the running power generation electricity for electric drive is avoided.
Further, in an embodiment, the battery states of the vehicle include a driving power generation battery state and an energy recovery battery state, and the obtaining the SOC electric quantity based on the battery states, the initial electric quantity of the energy recovery battery, and the initial electric quantity of the driving power generation battery includes:
step S31, if the battery state of the vehicle is determined to be the running power generation battery state, and when the electric quantity of the running power generation battery is detected to be not full, integrating the running power generation battery;
Step S32, if the battery state of the vehicle is determined to be the energy recovery battery state, integrating the energy recovery battery;
And step S33, respectively obtaining the integrated electric quantity of the driving power generation battery, the integrated electric quantity of the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity.
For example, when the battery state of the vehicle is determined to be the driving power generation battery state, detecting whether the electric quantity of the driving power generation battery is saturated, and if the electric quantity of the driving power generation battery is not saturated, integrating the driving power generation battery, wherein integrating the driving power generation battery comprises charging or discharging the driving power generation battery. For example, when the vehicle operation mode is the running power generation mode or the parking power generation mode, the running power generation battery is charged. Or when the energy recovery battery is full and the vehicle running mode is the braking mode, the running power generation battery is charged. Or when the electric quantity of the energy recovery battery is empty and the vehicle operation mode is not the braking mode, discharging the running power generation battery.
When the battery state of the vehicle is determined to be the energy recovery battery state, integrating the energy recovery battery, wherein integrating the energy recovery battery includes charging or discharging the energy recovery battery. For example, if it is detected that the energy recovery battery is not full and the vehicle operation mode is the braking mode, the energy recovery battery is charged. Or, when the vehicle operation mode is the hybrid mode or the engine mode, discharging the energy recovery battery.
And if the obtained electric quantity charged by the driving power generation battery, the electric quantity charged by the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery are added, obtaining the SOC electric quantity. Or adding the obtained electric quantity discharged by the driving power generation battery, the electric quantity discharged by the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity. Or adding the obtained electric quantity charged by the driving power generation battery, the electric quantity discharged by the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity. Or adding the obtained electric quantity discharged by the driving power generation battery, the electric quantity charged by the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity.
In this embodiment, the driving power generation battery or the energy recovery battery is charged or discharged according to the battery state, and then the SOC electric quantity is obtained according to the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery, so that the current SOC electric quantity can be accurately obtained without calculating the underelectricity relationship between the driving power generation battery and the energy recovery battery.
Further, in an embodiment, the determining the initial power of the virtual battery according to the initial power of the SOC includes:
Step S11, if the initial SOC electric quantity is larger than a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is the initial SOC electric quantity minus the second preset threshold value, and determining that the initial electric quantity of the driving power generation battery is the second preset threshold value;
And step S12, if the initial SOC electric quantity is smaller than or equal to a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is 0, and determining that the initial electric quantity of the driving power generation battery is the initial SOC electric quantity.
Exemplary, if the initial SOC electric quantity is greater than C1, it is determined that the initial SOC electric quantity of the energy recovery battery is equal to the initial SOC electric quantity minus C1, and the initial SOC electric quantity of the driving power generation battery is equal to C1. If the initial electric quantity of the SOC is smaller than or equal to C1, determining that the initial electric quantity of the energy recovery battery is 0, and determining that the initial electric quantity of the driving power generation battery is the initial electric quantity of the SOC.
In this embodiment, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery are divided by comparing the threshold values, and the actual application is divided and attached.
In a second aspect, the embodiment of the application further provides an operation mode determining device based on the virtual double battery.
In an embodiment, referring to fig. 2, fig. 2 is a schematic functional block diagram of an embodiment of a virtual dual battery-based operation mode determining apparatus according to the present application. As shown in fig. 2, the virtual battery-double-based operation mode determining apparatus includes:
s51, a first determining module is used for detecting the power-on of the vehicle and determining the initial electric quantity of the virtual double batteries according to the initial electric quantity of the SOC, wherein the virtual double batteries comprise an energy recovery battery and a driving power generation battery;
S52, a second determining module, configured to determine a battery state of the vehicle according to a vehicle running mode;
S53, an obtaining module, which is used for obtaining the SOC (state of charge) electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
And S54, a third determining module is used for determining a vehicle running mode according to the SOC electric quantity and/or the whole vehicle required power.
Further, in an embodiment, S54 the third determining module is configured to:
When the SOC whole vehicle required power is in a second preset power interval and the SOC electric quantity is in a first preset electric quantity interval, determining a vehicle running mode according to the energy recovery battery electric quantity;
if the electric quantity of the energy recovery battery is larger than a first preset threshold value, the vehicle running mode is a pure electric mode;
and if the electric quantity of the energy recovery battery is smaller than or equal to a first preset threshold value, the vehicle running mode is an engine-only mode.
Further, in an embodiment, S54 the third determining module is configured to:
When the SOC whole vehicle required power is in a first preset power interval and the SOC electric quantity is in a first preset electric quantity interval, the vehicle running mode is a pure electric mode;
when the SOC whole vehicle required power is in a third preset power interval and the SOC electric quantity is in a second preset electric quantity interval, the vehicle running mode is an engine-only mode;
when the SOC whole vehicle required power is in a fourth preset power interval and the SOC electric quantity is in a third preset electric quantity interval, the vehicle running mode is a pure electric mode;
When the SOC whole vehicle required power is in a fifth preset power interval and the SOC electric quantity interval is in a third preset electric quantity interval, the vehicle running mode is a hybrid driving mode.
Further, in one embodiment, the virtual double-battery-based operation mode determining device further comprises determining that the vehicle operation mode is a driving power generation mode when the SOC electric quantity is smaller than a second preset threshold value.
Further, in an embodiment, the S52 second determining module is configured to:
Determining whether the battery state of the vehicle is a driving power generation battery state according to the running mode of the vehicle;
if the running mode of the vehicle is detected to be running power generation or parking power generation, determining the battery state of the vehicle to be the running power generation battery state;
Or if the electric quantity of the energy recovery battery is detected to be full, and the vehicle running mode is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking, determining that the battery state of the vehicle is a running power generation battery state;
Or detecting that the electric quantity of the energy recovery battery is empty, and determining that the battery state of the vehicle is a running power generation battery state if the running mode of the vehicle is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking.
Further, in one embodiment, the second determining module of S52 is further configured to determine that the battery state of the vehicle is an energy recovery battery state if it is determined that the battery state of the vehicle is not a driving power generation battery state.
Further, in one embodiment, S53 obtains a module for:
If the battery state of the vehicle is determined to be the running power generation battery state, and when the fact that the electric quantity of the running power generation battery is not full is detected, integrating the running power generation battery;
If the battery state of the vehicle is determined to be the energy recovery battery state, integrating the energy recovery battery;
And respectively acquiring the integrated electric quantity of the driving power generation battery, the integrated electric quantity of the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity.
Further, in an embodiment, the S51 first determining module is configured to:
If the initial SOC electric quantity is larger than a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is the initial SOC electric quantity minus the second preset threshold value, and determining that the initial electric quantity of the driving power generation battery is the second preset threshold value;
if the initial electric quantity of the SOC is smaller than or equal to a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is 0, and determining that the initial electric quantity of the driving power generation battery is the initial electric quantity of the SOC.
The function implementation of each module in the operation mode determining device based on the virtual double battery corresponds to each step in the operation mode determining method embodiment based on the virtual double battery, and the function and the implementation process of the function implementation are not described in detail herein.
In a third aspect, an embodiment of the present application provides a vehicle having an apparatus with a data processing function.
Referring to fig. 3, fig. 3 is a schematic diagram of a hardware structure of a vehicle according to an embodiment of the present application. In an embodiment of the application, the vehicle may include a processor, a memory, a communication interface, and a communication bus.
The communication bus may be of any type for implementing the processor, memory, and communication interface interconnections.
Communication interfaces include input/output (I/O) interfaces, physical interfaces, logical interfaces, and the like for enabling interconnection of devices within a vehicle, as well as interfaces for enabling interconnection of a vehicle with other devices (e.g., other computing devices or user devices). The physical interface may be an ethernet interface, an optical fiber interface, an ATM interface, etc., and the user device may be a Display screen (Display), a Keyboard (Keyboard), etc.
The memory may be various types of storage media such as random access memory (randomaccess memory, RAM), read-only memory (ROM), nonvolatile RAM (non-volatileRAM, NVRAM), flash memory, optical memory, hard disk, programmable ROM (PROM), erasable PROM (erasable PROM, EPROM), electrically erasable PROM (ELECTRICALLY ERASABLE PROM, EEPROM), and the like.
The processor may be a general-purpose processor, and the general-purpose processor may call a virtual double battery-based operation mode determining program stored in the memory and execute the virtual double battery-based operation mode determining method provided by the embodiment of the present application. For example, the general purpose processor may be a central processing unit (central processing unit, CPU). The method executed when the operation mode determining program based on the virtual battery is called may refer to various embodiments of the operation mode determining method based on the virtual battery according to the present application, and will not be described herein.
Those skilled in the art will appreciate that the hardware configuration shown in fig. 3 is not limiting of the application and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
In a fourth aspect, embodiments of the present application also provide a computer-readable storage medium.
The computer readable storage medium of the present application stores thereon a virtual battery-in-two operation mode determination program, wherein the virtual battery-in-two operation mode determination program, when executed by a processor, implements the steps of the virtual battery-in-two operation mode determination method as described above.
The method implemented when the operation mode determining program of the virtual dual battery is executed may refer to various embodiments of the operation mode determining method of the virtual dual battery of the present application, which are not described herein.
It should be noted that, the foregoing reference numerals of the embodiments of the present application are merely for describing the embodiments, and do not represent the advantages and disadvantages of the embodiments.
The terms "comprising" and "having" and any variations thereof in the description and claims of the application and in the foregoing drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The terms "first," "second," and "third," etc. are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order, and are not limited to the fact that "first," "second," and "third" are not identical.
In describing embodiments of the present application, "exemplary," "such as," or "for example," etc., are used to indicate by way of example, illustration, or description. Any embodiment or design described herein as "exemplary," "such as" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "such as" or "for example," etc., is intended to present related concepts in a concrete fashion.
In the description of the embodiment of the present application, "/" means or, for example, a/B may mean a or B, and "and/or" in the text is merely an association relationship describing an association object, means that three relationships may exist, for example, a and/or B, three cases where a exists alone, a and B exist together, and B exists alone, and further, in the description of the embodiment of the present application, "a plurality" means two or more.
In some of the processes described in the embodiments of the present application, a plurality of operations or steps occurring in a particular order are included, but it should be understood that the operations or steps may be performed out of the order in which they occur in the embodiments of the present application or in parallel, the sequence numbers of the operations merely serve to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. In addition, the processes may include more or fewer operations, and the operations or steps may be performed in sequence or in parallel, and the operations or steps may be combined.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a terminal device to perform the method according to the embodiments of the present application.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (9)
1. The operation mode determining method based on the virtual double battery is characterized by comprising the following steps of:
Detecting the power-on of a vehicle, and determining the initial electric quantity of a virtual double battery according to the initial electric quantity of the SOC, wherein the virtual double battery comprises an energy recovery battery and a driving power generation battery;
Determining whether the battery state of the vehicle is a driving power generation battery state according to a first vehicle running mode;
if the first vehicle running mode is detected to be running power generation or parking power generation, determining that the battery state of the vehicle is the running power generation battery state;
If the electric quantity of the energy recovery battery is detected to be full, and the first vehicle running mode is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking, determining that the battery state of the vehicle is a running power generation battery state;
If the electric quantity of the energy recovery battery is detected to be empty, determining that the battery state of the vehicle is a running power generation battery state if the first vehicle running mode is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing and single motor braking;
Obtaining SOC (state of charge) electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
and determining a second vehicle running mode according to the SOC electric quantity and the whole vehicle required power, wherein the second vehicle running mode comprises an engine-only mode, a pure electric mode, a hybrid driving mode and a driving power generation mode.
2. The virtual battery-double-based operation mode determination method according to claim 1, wherein the determining the second vehicle operation mode according to the SOC electric quantity and the vehicle-whole required power includes:
When the whole vehicle required power is in a second preset power interval and the SOC electric quantity is in a first preset electric quantity interval, determining a second vehicle running mode according to the energy recovery battery electric quantity;
if the electric quantity of the energy recovery battery is larger than a first preset threshold value, the second vehicle running mode is a pure electric mode;
And if the energy recovery battery electric quantity is smaller than or equal to the first preset threshold value, the second vehicle running mode is an engine-only mode.
3. The virtual battery-double-based operation mode determination method according to claim 1, wherein the determining the second vehicle operation mode according to the SOC electric quantity and the vehicle-whole required power includes:
When the required power of the whole vehicle is in a first preset power interval and the SOC electric quantity is in the first preset electric quantity interval, the second vehicle running mode is a pure electric mode;
When the whole vehicle required power is in a third preset power interval and the SOC electric quantity is in a second preset electric quantity interval, the second vehicle running mode is an engine-only mode;
when the required power of the whole vehicle is in a fourth preset power interval and the SOC electric quantity is in a third preset electric quantity interval, the second vehicle running mode is a pure electric mode;
when the required power of the whole vehicle is in a fifth preset power interval and the SOC electric quantity is in a third preset electric quantity interval, the second vehicle running mode is a hybrid driving mode.
4. The method for determining a virtual battery-operated mode according to claim 1, wherein before determining the second vehicle-operated mode according to the SOC electric quantity and the vehicle-mounted power demand, determining that the second vehicle-operated mode is a vehicle-driven power generation mode when the SOC electric quantity is less than a second preset threshold.
5. The method of determining a virtual battery-from-two running mode of claim 1 wherein the battery state of the vehicle comprises an energy recovery battery state, and wherein determining whether the battery state of the vehicle is a drive power generation battery state based on the first vehicle running mode further comprises determining that the battery state of the vehicle is an energy recovery battery state if the battery state of the vehicle is determined not to be a drive power generation battery state.
6. The virtual battery-double-based operation mode determination method according to claim 1, wherein the battery state of the vehicle includes a driving power generation battery state and an energy recovery battery state, the obtaining the SOC electric quantity based on the battery state, the initial electric quantity of the energy recovery battery, and the initial electric quantity of the driving power generation battery includes:
If the battery state of the vehicle is determined to be the running power generation battery state, and when the fact that the electric quantity of the running power generation battery is not full is detected, integrating the running power generation battery;
If the battery state of the vehicle is determined to be the energy recovery battery state, integrating the energy recovery battery;
and respectively acquiring the integrated electric quantity of the driving power generation battery, the integrated electric quantity of the energy recovery battery, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery to obtain the SOC electric quantity.
7. The virtual battery-double-cell-based operation mode determination method according to claim 1, wherein the determining the initial charge amount of the virtual battery double according to the initial charge amount of the SOC comprises:
If the initial SOC electric quantity is larger than a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is the initial SOC electric quantity minus the second preset threshold value, and determining that the initial electric quantity of the driving power generation battery is the second preset threshold value;
if the initial electric quantity of the SOC is smaller than or equal to a second preset threshold value, determining that the initial electric quantity of the energy recovery battery is 0, and determining that the initial electric quantity of the driving power generation battery is the initial electric quantity of the SOC.
8. An operation mode determining apparatus based on a virtual battery, characterized in that the apparatus comprises:
the first determining module is used for detecting the power-on of the vehicle and determining the initial electric quantity of the virtual double batteries according to the initial electric quantity of the SOC, wherein the virtual double batteries comprise an energy recovery battery and a driving power generation battery;
The second determining module is used for determining whether the battery state of the vehicle is a driving power generation battery state according to the first vehicle running mode;
The third determining module is used for determining that the battery state of the vehicle is a driving power generation battery state if the first running mode of the vehicle is driving power generation or parking power generation;
A fourth determining module, configured to determine that a battery state of the vehicle is a driving power generation battery state if it is detected that an electric quantity of the energy recovery battery is full and the first vehicle operation mode is any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing, and single motor braking;
A fifth determining module, configured to determine that a battery state of the vehicle is a driving power generation battery state if it is detected that an electric quantity of the energy recovery battery is empty, and the first vehicle operation mode is not any one of motor braking, engine reverse towing, auxiliary braking, motor braking, engine reverse towing, and single motor braking;
the obtaining module is used for obtaining the SOC electric quantity based on the battery state, the initial electric quantity of the energy recovery battery and the initial electric quantity of the driving power generation battery;
and the sixth determining module is used for determining a second vehicle running mode according to the SOC electric quantity and the whole vehicle required power, wherein the second vehicle running mode comprises an engine-only mode, a pure electric mode, a hybrid driving mode and a driving power generation mode.
9. A computer-readable storage medium comprising a processor, a memory, and a virtual bicell-based operation mode determination program stored on the memory and executable by the processor, wherein the virtual bicell-based operation mode determination program, when executed by the processor, implements the steps of the virtual bicell-based operation mode determination method of any one of claims 1 to 7.
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| CN116142167A (en) * | 2022-12-30 | 2023-05-23 | 东风商用车有限公司 | Automobile driving mode control method based on virtual double batteries |
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| US8359133B2 (en) * | 2010-02-19 | 2013-01-22 | Ford Global Technologies, Llc | Engine power elevation and active battery charge energy management strategies for plug-in hybrid electric vehicles |
| KR102044276B1 (en) * | 2017-12-29 | 2019-11-12 | 주식회사 경신 | Apparatus and method for controlling charging of a dual battery system |
| CN112590528B (en) * | 2021-03-02 | 2021-06-18 | 比亚迪股份有限公司 | Hybrid system, hybrid vehicle and control method thereof, and vehicle controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101428613A (en) * | 2007-11-08 | 2009-05-13 | 丰田自动车株式会社 | Hybrid vehicle with internal combustion engine and electric motor installed |
| CN116142167A (en) * | 2022-12-30 | 2023-05-23 | 东风商用车有限公司 | Automobile driving mode control method based on virtual double batteries |
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