CN111934584B - Generator voltage control method, device, system and storage medium - Google Patents
Generator voltage control method, device, system and storage medium Download PDFInfo
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- CN111934584B CN111934584B CN202010768701.5A CN202010768701A CN111934584B CN 111934584 B CN111934584 B CN 111934584B CN 202010768701 A CN202010768701 A CN 202010768701A CN 111934584 B CN111934584 B CN 111934584B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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Abstract
The embodiment of the application discloses a generator voltage control method, a generator voltage control device, a generator voltage control system and a storage medium. The method comprises the following steps: acquiring a battery state of a storage battery associated with the generator and a vehicle running state of a vehicle in which the generator is located; determining a target vehicle control mode according to the battery state and the vehicle running state; determining a target voltage associated with a target vehicle control mode; and regulating the voltage of the generator according to the target voltage. The embodiment of the application realizes the determination of different target voltages for the generator under different vehicle control modes, thereby realizing the dynamic regulation control of the generator voltage, further reducing the oil consumption of the vehicle, improving the acceleration response of the vehicle and improving the overall performance of the vehicle.
Description
Technical Field
The embodiment of the application relates to the technical field of power supply control, in particular to a generator voltage control method, device and system and a storage medium.
Background
In recent years, with the trend of vehicle intellectualization and electrification gradually accelerated, the electric load of the whole vehicle is more and more. To improve the smoothness of the engine, improve the fuel economy of the vehicle, and the like, more and more automobiles perform intelligent control on the generator in the power network. And the reliability of starting the vehicle is ensured, and a plurality of storage battery systems are mounted in more and more ultrahigh-gear automobiles.
Conventionally, a vehicle equipped with a multi-battery power supply network generally controls a generator voltage by a predetermined fixed electric quantity threshold value, thereby realizing charging control of a battery.
However, the above-described mechanical control method leads to an increase in fuel efficiency of the vehicle, deterioration in acceleration response of the vehicle, and engine shake, which may deteriorate vehicle performance.
Disclosure of Invention
The application provides a generator voltage control method, a generator voltage control device, a generator voltage control system and a storage medium, so that dynamic adjustment of generator voltage is achieved, and vehicle performance is improved.
In a first aspect, an embodiment of the present application provides a generator voltage control method, including:
acquiring a battery state of a storage battery associated with the generator and a vehicle running state of a vehicle in which the generator is located;
determining a target vehicle control mode according to the battery state and the vehicle running state;
determining a target voltage associated with the target vehicle control mode;
and regulating the voltage of the generator according to the target voltage.
In a second aspect, an embodiment of the present application further provides a generator voltage control apparatus, including:
the state acquisition module is used for acquiring the battery state of a storage battery associated with the generator and acquiring the vehicle running state of a vehicle in which the generator is positioned;
the target vehicle control mode determining module is used for determining a target vehicle control mode according to the battery state and the vehicle running state;
a target voltage determination module to determine a target voltage associated with the target vehicle control mode;
and the voltage regulating module is used for regulating the voltage of the generator according to the target voltage.
In a third aspect, an embodiment of the present application further provides a generator voltage control system, including:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are enabled to implement a generator voltage control method as provided in an embodiment of the first aspect.
In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement a generator voltage control method as provided in the first aspect.
According to the embodiment of the application, the battery state of the storage battery associated with the generator is obtained, and the vehicle running state of the vehicle in which the generator is located is obtained; determining a target vehicle control mode according to the battery state and the vehicle running state; determining a target voltage associated with a target vehicle control mode; and regulating the voltage of the generator according to the target voltage. By adopting the technical scheme, the determination of different target voltages of the generator under different vehicle control modes is realized by introducing the target vehicle control mode, so that the dynamic regulation control of the voltage of the generator is realized, the oil consumption of the vehicle is reduced, the acceleration response of the vehicle is improved, and the overall performance of the vehicle is improved.
Drawings
Fig. 1 is a flowchart of a generator voltage control method according to a first embodiment of the present application;
fig. 2 is a flowchart of a generator voltage control method according to a second embodiment of the present application;
fig. 3A is an architecture diagram of a generator voltage control network according to a third embodiment of the present application;
fig. 3B is a flowchart of a generator voltage control method according to a third embodiment of the present application;
fig. 4 is a structural diagram of a generator voltage control apparatus according to a fourth embodiment of the present application;
fig. 5 is a structural diagram of a generator voltage control system according to a fifth embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a generator voltage control method according to a first embodiment of the present application. The embodiment of the application is suitable for the condition that the voltage regulation control is carried out on the generator for charging the storage battery in the vehicle, the method is executed by a voltage control device, the device is realized by adopting software and/or hardware and is specifically configured in a generator voltage control system, and the generator voltage control system can be integrated in a power management controller of the vehicle.
A generator voltage control method as shown in fig. 1, comprising:
and S110, acquiring the battery state of a storage battery associated with the generator, and acquiring the vehicle running state of the vehicle in which the generator is positioned.
The battery state is used to characterize the basic condition of a battery in the vehicle, and may include a charge signal and/or a temperature signal. The vehicle driving state is used for representing the driving condition of the vehicle, and may include at least one of a start state, an idle state, an acceleration state, a deceleration state, a uniform speed state, and the like.
Optionally, the battery state may be obtained by real-time or timed measurement of a battery sensor, and accordingly, the battery state of the battery is obtained from the battery sensor in real-time or timed manner. Optionally, the vehicle driving state may be obtained by the engine controller or by timing, and accordingly, the vehicle driving state is obtained from the engine controller in real time or in timing.
And S120, determining a target vehicle control mode according to the battery state and the vehicle running state.
The vehicle control mode is used for dividing the control mode of the vehicle, so that the control of the vehicle under different driving scenes is realized through different control modes.
Optionally, if the electric quantity signal and the temperature signal are invalid, and the vehicle driving state is in a non-starting state or the vehicle driving state is invalid, it is determined that the target vehicle control mode is the failure mode.
In an optional implementation manner of the embodiment of the present application, whether the power signal is valid may be determined by: identifying status bit information of the battery sensor; and if the identified state bit value is a valid identifier, determining that the electric quantity signal is valid, otherwise, determining that the electric quantity signal is invalid. Wherein the valid identification of the status bit value can be determined by a skilled person as desired or empirically. Optionally, the valid identifier may be determined according to the accuracy of the electric quantity recognition result. For example, setting the status bit with at least two different identifications according to the recognition result precision of the electric quantity signal; and setting the corresponding identification value as an effective identification when the accuracy of the electric quantity signal identification result meets the set electric quantity accuracy threshold, namely the accuracy requirement of the electric quantity signal identification result is met.
In another alternative implementation of the embodiments of the present application, whether the temperature signal is valid may be determined by: identifying status bit information of the temperature sensor; and if the identified state bit value is the valid bit identifier, determining that the temperature signal is valid, otherwise, determining that the temperature signal is invalid. Wherein the valid identification of the status bit value can be determined by a skilled person as desired or empirically. It should be noted that the valid bit identifier of the temperature sensor and the valid bit identifier of the electric quantity sensor may be the same or different. Optionally, the determination of the valid identifier may also be performed according to the accuracy of the temperature identification result. For example, the status bit is set to at least two different identifications according to the recognition result precision of the temperature signal; and setting the corresponding identification value as an effective identification when the precision of the temperature signal identification result meets the set temperature precision threshold, namely the temperature signal identification result meets the precision requirement.
Taking the electric quantity signal as an example, for illustration, three different identification values of "0", "1" and "2" are set in the storage battery sensor; wherein "0" represents a charge error of greater than 15%; "1" means a charge error of greater than 10% and not greater than 15%; "2" means that the charge error is not more than 10%. When the power error is not more than 10%, the power precision requirement is met, and therefore "2" is set as a valid identifier. When the voltage of the generator is controlled, if the state bit of the acquired electric quantity signal is '2', the electric quantity signal is valid, otherwise, the electric quantity signal is invalid.
Optionally, if the electric quantity signal is invalid, the temperature signal is valid, and the vehicle driving state is in a non-starting state, it is determined that the target vehicle control mode is the battery temperature mode.
Alternatively, if the vehicle running state is in the starting state, it is determined that the target vehicle control mode is the vehicle starting mode.
Optionally, if the vehicle driving state is in an acceleration state and the electric quantity signal is greater than the first set electric quantity threshold, it is determined that the target vehicle control mode is the vehicle acceleration mode. Wherein the first set charge threshold is set by a technician as needed or empirical or determined repeatedly by a number of trials.
Optionally, if the vehicle driving state is in a deceleration state, it is determined that the target vehicle control mode is the vehicle deceleration mode.
Optionally, if the vehicle driving state satisfies at least one of the following conditions, determining that the target vehicle control mode is the battery power mode: the vehicle running state is in an idling state; the running state of the vehicle is in a constant speed state; and the vehicle running state is in an acceleration state, and the electric quantity signal is smaller than a first set electric quantity threshold value.
For example, when the target vehicle control mode is determined, the screening determination may be performed on the at least one vehicle control mode in a parallel execution manner; or, optionally, the vehicle control modes may be screened according to a certain priority order. The priority order may be determined by a technician as needed or an empirical value, and may be adjusted as needed.
It should be noted that, because the voltage of the vehicle generator is regulated in a failure mode, the generator or other hardware may be damaged to some extent, and the safety of the driver or passengers may even be affected. To reduce the safety risk, it is preferable to first identify the failure mode and then identify the other modes in parallel or in series.
In one embodiment, the priority may be determined from large to small for each vehicle control mode as follows: a fault mode, a battery temperature mode, a vehicle start mode, a vehicle acceleration mode, a vehicle deceleration mode, and a battery charge mode. Accordingly, when the determination of the target vehicle control mode is made, the determination of the failure mode, the battery temperature mode, the vehicle start mode, the vehicle acceleration mode, the vehicle deceleration mode, and the battery charge mode are made in order, and when one of the vehicle control modes is determined as the target vehicle control mode, the determination of the other vehicle control modes is suspended, thereby reducing unnecessary calculations until the battery state and/or the vehicle state are changed.
And S130, determining a target voltage associated with the target vehicle control mode.
Illustratively, according to the correlation between the vehicle control mode and the correlation voltage, the correlation voltage correlated with the target vehicle control mode is determined, and the determined correlation voltage is taken as the target voltage.
And S140, regulating the voltage of the generator according to the target voltage.
The corresponding target voltage is pre-associated with the different vehicle control modes, so that the corresponding target voltage is determined through the target vehicle control mode and is used for carrying out voltage regulation on the generator, and dynamic voltage regulation on the generator under the different vehicle control modes is further realized.
In an optional implementation manner of the embodiment of the present application, in order to avoid fluctuation of the engine speed caused by sudden change of voltage, a voltage adjustment step length may be further introduced in the process of adjusting the voltage of the generator, so as to implement a staged adjustment of the voltage of the generator.
Exemplarily, determining a voltage adjustment step according to a voltage difference value between the target voltage and the current voltage of the generator; and sequentially regulating the current voltage of the generator to the target voltage according to the voltage regulation step length.
Specifically, a voltage difference between a target voltage and a current voltage of the generator is determined; if the voltage difference is larger than a first set threshold, determining the voltage adjusting step length as a first adjusting step length; adjusting the current voltage of the generator according to the first adjusting step length to update the current voltage, and re-determining the voltage difference between the target voltage and the updated current voltage until the voltage difference is not greater than a first set threshold; when the voltage difference is not larger than the first set threshold, determining a second adjusting step length according to the voltage difference and the set percentage; and adjusting the current voltage of the generator according to the second adjustment step length to update the current voltage, and re-determining the voltage difference between the target voltage and the updated current voltage until the current voltage is adjusted to the target voltage. The first set threshold value may be determined by a skilled person according to requirements or empirical values, or may be determined repeatedly by a large number of experiments, and may be determined to be 100mV, for example. The first adjustment step can be determined by the skilled person as desired or empirically, or can be determined repeatedly by a number of tests, and can be set to 20mV/10ms, for example. The set percentage can be determined by a skilled person according to requirements or empirical values, or determined repeatedly by a number of tests, and can be set to 0.1 Δ UmV/10ms, for example, where Δ U is the voltage difference.
According to the embodiment of the application, the battery state of the storage battery associated with the generator is obtained, and the vehicle running state of the vehicle in which the generator is located is obtained; determining a target vehicle control mode according to the battery state and the vehicle running state; determining a target voltage associated with a target vehicle control mode; and regulating the voltage of the generator according to the target voltage. By adopting the technical scheme, the target vehicle control mode is introduced, so that the determination of different target voltages of the generator under different vehicle control modes is realized, the dynamic regulation control of the voltage of the generator is realized, the oil consumption of the vehicle is reduced, the acceleration response of the vehicle is improved, and the overall performance of the vehicle is improved.
The technical scheme can be applied to vehicles provided with one storage battery and can also be applied to vehicle factories provided with at least two storage batteries. If the vehicle where the generator is located comprises at least two storage batteries, different battery power supply modes can be determined by acquiring the connection state between the batteries of the storage batteries, so that the target vehicle control mode is determined in different battery power supply modes.
Illustratively, if the vehicle in which the generator is located comprises at least two storage batteries, the connection state between the batteries is obtained; determining a target battery power supply mode according to the connection state between batteries; the target battery power supply mode includes a cell mode and a multi-battery mode. Accordingly, the target vehicle control mode is determined according to the battery state and the vehicle running state, and may be: a target vehicle control mode in the target battery power supply mode is selected according to the battery state and the vehicle running state. The multi-battery mode may be a battery mode including at least two secondary batteries.
Optionally, the different battery power supply modes include at least one vehicle control mode; the types of vehicle control modes included in the different battery-powered modes may be the same or different. If the types of the vehicle control modes included in the different battery power supply modes are the same, the entry conditions of the same vehicle control mode in the different battery power supply modes are the same or different.
The inter-battery connection state is used to represent the connection between the storage batteries installed in the vehicle, and may be obtained by a storage battery sensor in real time or at regular time, and accordingly, the inter-battery connection state is obtained from the storage battery sensor. The inter-battery connection state comprises a connection state and a disconnection state.
Taking a double storage battery as an example, if the connection state between the batteries is the connection state, determining that the target battery power supply mode is the double-battery mode; and if the inter-battery connection state is the disconnection state, determining that the target battery power supply mode is the single-battery mode. In the single battery mode, determining one vehicle control mode in the single battery mode as a target vehicle control mode by adopting the battery state and the vehicle running state of the single storage battery; in the dual battery mode, a battery state of the dual battery and a vehicle running state are used to determine one of the vehicle control modes in the dual battery mode as a target vehicle control mode.
The determination of the target vehicle control mode according to the battery state and the vehicle driving state is the same as or similar to the foregoing manner, and is not described herein again.
Example two
Fig. 2 is a flowchart of a generator voltage control method in the second embodiment of the present application, which is optimized and improved based on the technical solutions of the above embodiments.
Further, the operation of determining the target voltage associated with the target vehicle control mode is refined into the operation of searching the associated voltage of the target vehicle control mode according to a preset mode voltage relation table, and the associated voltage is used as the target voltage so as to improve the determination mode of the target voltage.
A generator voltage control method as shown in fig. 2, comprising:
s210, acquiring a battery state of a storage battery related to the generator, and acquiring a vehicle running state of a vehicle where the generator is located.
And S220, determining a target vehicle control mode according to the battery state and the vehicle running state.
And S230, searching the associated voltage of the target vehicle control mode according to a preset mode voltage relation table, and taking the associated voltage as the target voltage.
The mode voltage relation table stores the associated voltages in different vehicle control modes in advance, and the voltage value of each associated voltage can be determined by technicians according to needs or experience values or determined repeatedly through a large number of tests.
The mode voltage relation table can be stored in the engine voltage control system in advance, and when the mode voltage relation table is needed, the mode voltage relation table is searched and obtained from the generator voltage control system; the mode voltage relation table can be stored in other storage devices or cloud ends associated with the generator voltage control system, and the mode voltage relation table can be searched and obtained from the other storage devices or the cloud ends when needed.
In an optional implementation manner of the embodiment of the present application, the associated voltage of each vehicle control mode in the mode voltage relationship table may be determined in the following manner: if the vehicle control mode is the voltage fixed mode, determining the associated voltage of the vehicle control mode according to a preset fixed value; and if the vehicle control mode is the voltage variation mode, determining the relevant voltage of the vehicle control mode according to the battery state and the voltage drop on the charging loop line.
The voltage fixing mode may include a failure mode and/or a vehicle starting mode, among others. The voltage variation pattern may include at least one of a battery temperature pattern, a battery charge pattern, a vehicle acceleration pattern, a vehicle deceleration pattern, and the like.
Optionally, if the vehicle control mode is the battery temperature mode, determining the associated voltage of the vehicle control mode according to the battery state and the voltage drop on the charging loop line may be: determining a temperature initial voltage according to the temperature signal in the battery state; correcting the initial temperature voltage according to the voltage drop on the charging loop line to obtain the temperature voltage of the battery; and taking the battery temperature voltage as the related voltage of the vehicle control mode.
For example, an optimum charging voltage value of the battery at the corresponding temperature value may be determined from the temperature signal in the battery state, and the optimum charging voltage value may be used as the temperature initial voltage. The optimum charging voltage values at different temperatures are provided by specific absolute points of the storage battery, generally provided by a storage battery manufacturer. Wherein the voltage drop on the charging loop line is determined by the product of the charging loop resistance and the current flowing through the charging loop.
It should be noted that, when determining the associated voltage in the mode voltage relationship table in the multi-battery mode, that is, when the vehicle includes at least two connected storage batteries, the associated voltage is determined for each storage battery in the above manner; and taking the average value of the associated voltages of the storage batteries in the connection state as the associated voltage in the final electric quantity control mode.
Optionally, if the vehicle control mode is the battery power mode, determining the associated voltage of the vehicle control mode according to the battery state and the voltage drop on the charging loop line, where the voltage is determined according to the battery state and the voltage drop on the charging loop line, and the determining may be: determining an electric quantity initial voltage according to the electric quantity signal and the temperature signal in the battery state; correcting the initial voltage of the electric quantity according to the voltage drop on the charging loop line to obtain the electric quantity voltage of the battery; and taking the battery charge voltage as the associated voltage of the vehicle control mode.
For example, an optimal charging voltage value under the condition of corresponding electric quantity and temperature value can be determined according to the electric quantity signal and the temperature signal in the battery state, and the optimal charging voltage value is used as the electric quantity initial voltage. The optimum charging voltage values under different temperatures and electric quantities are determined by the characteristics of the storage battery, and are generally provided by the storage battery manufacturer. Wherein the voltage drop on the charging loop line is determined by the product of the charging loop resistance and the current flowing through the charging loop.
It should be noted that, when determining the associated voltage in the mode voltage relationship table in the multi-battery mode, that is, when the vehicle includes at least two connected storage batteries, the associated voltage is determined for each storage battery in the above manner; and taking the average value of the associated voltages of the storage batteries in the connection state as the associated voltage in the final electric quantity control mode.
Optionally, if the voltage fixing mode is a vehicle acceleration mode, determining the associated voltage of the vehicle control mode according to a preset negative offset and a battery temperature voltage. The predetermined negative offset may be determined by a technician's personal need or empirical values, or determined repeatedly by a number of tests. Through the setting of presetting the negative offset, can reduce the generator to the moment of torsion demand of engine, help the vehicle to accelerate, improve vehicle acceleration performance.
Optionally, if the voltage fixing mode is a vehicle deceleration mode, determining the associated voltage of the vehicle control mode according to a preset forward offset and a battery temperature voltage. The predetermined forward offset may be determined by a technician's needs or experience, or determined repeatedly by a number of experiments. Through the setting of predetermineeing forward offset, can increase the generator and to the moment of torsion demand of engine, help the vehicle to slow down, can increase the battery potential difference of vehicle simultaneously, improve charge efficiency.
Optionally, if the vehicle control mode is the failure mode, the associated voltage of the vehicle control mode is set to the preset failure fixed voltage. The predetermined fault holding voltage may be determined by a technician as needed or empirically, or determined iteratively through a number of tests.
Optionally, if the voltage fixing mode is a vehicle starting mode, the voltage related to the vehicle control mode is set to a preset starting fixing voltage. The predetermined starting fixed voltage may be determined by a technician's home needs or empirical values, or determined iteratively through a number of tests. For example, the preset start-up fixed voltage may be set to 10600 mV.
And S240, regulating the voltage of the generator according to the target voltage.
According to the method and the device, the target voltage relevant to the target vehicle control mode is determined, the mode that the relevant voltage relevant to the target vehicle control mode is searched in a preset mode voltage relation table is refined, the relevant voltage is used as the target voltage, and the mode that the relevant voltage is searched and determined through the mode power supply relation table is adopted, so that the data operation amount during target voltage determination is reduced, the target voltage determination efficiency is improved, and the control efficiency during control over the generator voltage is further improved.
EXAMPLE III
In the present embodiment, a preferable embodiment is provided on the basis of the technical solutions of the above embodiments, and a generator voltage control method will be described in detail by taking a case where a vehicle is provided with two batteries as an example.
For ease of understanding, the generator voltage control network framework to which the present application relates will first be described.
A generator voltage control network, as shown in fig. 3A, includes a first battery sensor 11, a second battery sensor 12, an engine controller 20, a dual battery controller 30, a generator voltage control system 40, and a generator regulator 50.
The first battery sensor 11, the second battery sensor 12, the engine controller 20, and the dual battery controller 30 serve as input signal sources for the generator voltage control system 40; the generator voltage control system 40 outputs a control signal to the generator regulator 50 to control the generated voltage.
The first storage battery sensor 11 is connected with the first storage battery and used for determining the battery state of the first storage battery; wherein the battery status may include at least one of a battery level, a voltage, a current, and a temperature.
A second battery sensor 12 connected to the second battery for determining a battery condition of the second battery; wherein the battery status may include at least one of a battery level, a voltage, a current, and a temperature.
An engine controller 20 receiving status signals from a plurality of vehicle sensors for determining a driving status of the vehicle via the vehicle sensors; wherein the driving state may include at least one of a starting state, an accelerating state, a decelerating state, an idling state, and a uniform speed state.
The dual battery controller 30 drives the dual batteries between the first battery and the second battery through the relay to control connection and disconnection of the first battery and the second battery, and determines a connection state between the first battery and the second battery through an open/close state of the relay.
The generator voltage control system 40 acquires a cell signal of the first battery from the first battery sensor 11, a cell signal of the second battery from the second battery sensor 12, a running state of the vehicle from the engine controller 20, and a connection state between the first battery and the second battery from the dual battery controller 30.
The engine voltage control system 40 is further configured to determine a target vehicle control mode according to the battery states, the driving state and the connection state, further determine a target voltage associated with the target vehicle control mode, and determine an adjustment voltage according to a voltage adjustment strategy, and send the adjustment voltage to the generator regulator 50.
And the generator regulator 50 is connected with the generator and used for regulating the voltage of the generator by regulating the voltage until the voltage is regulated to the target voltage.
The control flow of the generator voltage control system to the generator voltage will be described in detail with reference to the flow chart of the generator voltage control method shown in fig. 3B.
And S310, acquiring the battery state of each storage battery, the running state of the vehicle and the connection state between the storage batteries.
S320, determining a primary control mode according to the connection state between the storage batteries; wherein, the primary control mode is a single-battery mode or a double-battery mode.
Specifically, if the connection state between the storage batteries is connection, the primary control mode is determined to be a dual-battery mode; and if the connection state between the storage batteries is disconnected, determining that the primary control mode is the single-battery mode.
S330, determining a secondary control mode in the primary control mode according to the battery state of the storage battery and the running state of the vehicle, and taking the determined secondary control mode as a target control mode; wherein the secondary control mode is a fault mode, a battery temperature mode, a vehicle starting mode, a vehicle accelerating mode, a vehicle decelerating mode or a battery power mode.
For example, if the primary control mode is the single cell mode, the secondary control mode in the single cell mode is determined according to the entry conditions in the following table:
the working storage battery is a storage battery for supplying power to the vehicle, namely a storage battery connected with a generator, the working storage battery in the single storage battery mode is a first storage battery, and the judgment conditions of the working storage battery in the table are only used for judging the state of the first storage battery.
Alternatively, the determination of the secondary control mode may be performed sequentially according to the priority order from top to bottom in the table. Wherein a smaller sequence number indicates a higher priority.
For example, if the primary control mode is the dual battery mode, the secondary control mode in the dual battery mode is determined according to the entry conditions in the following table:
alternatively, the determination of the secondary control mode may be performed sequentially according to the priority order from top to bottom in the table. Wherein a smaller sequence number indicates a higher priority.
Wherein, the working storage battery is two connected storage batteries. When the learning state signals of the two storage batteries are judged to be valid, the next mode can be judged only when the related signals of the two storage battery sensors are low in accuracy or invalid, otherwise, the target voltage of the generator is set based on the signal of the storage battery sensor with high learning accuracy.
Alternatively, the determination of the secondary control mode may be performed sequentially according to the priority order from top to bottom in the table. Wherein a smaller sequence number indicates a higher priority.
S340, searching the associated voltage of the target control mode according to a preset mode voltage relation table, and taking the searched associated voltage as the target voltage.
Optionally, the target voltage may be determined by using a mode voltage relationship table as follows:
for example, when the primary control mode is the cell mode, each associated voltage may be determined by the following principle:
associated voltage UA1: the failure mode is fixed voltage value power generation, UA1＝U0(ii) a Wherein, U0Set by a skilled person according to need or empirical values.
Associated voltage UB1: the battery temperature mode is a mode in which the associated voltage is controlled in accordance with the temperature of the operating battery. Wherein the associated voltage is determined by the optimum charging voltage value U of the working accumulator at the current temperaturetbatt1And the voltage drop U on the line of the charging circuit of the generator and of the working accumulatorline1And (4) determining the association. Wherein, the optimum charging voltage value U of the working storage battery under different temperaturestbatt1The characteristics of the working storage battery are determined, and common storage battery manufacturers can provide the characteristics; the voltage drop on the line is Uline1＝Itbatt1*Rline1(ii) a Wherein R isline1Is the resistance of the charging circuit, Itbatt1Is the current flowing through the charging loop. In particular, the associated voltage UB1＝Utbatt1+Uline1。
Associated voltage UC1: the associated voltage of the generator in the vehicle start mode is 10600mV, UC110600 mV; wherein the associated voltage may be set or adjusted by a technician as needed or empirically.
Associated voltage UD1: the associated voltage of the generator in the vehicle acceleration mode is: associated voltage U of battery temperature modeB1By subtracting an offset Uoffset1I.e. UD1＝UB1-Uoffset1(ii) a Wherein, the offset Uoffset1Can be set or adjusted by a skilled person according to need or empirical values.
Associated voltage UE1: the associated voltage of the generator in the vehicle deceleration mode is: associated voltage U of battery temperature modeB1Plus an offset Uoffset2I.e. UE1＝UB1+Uoffset2(ii) a Wherein, the offset Uoffset2Can be set or adjusted by a skilled person according to need or empirical values. Wherein, Uoffset1And Uoffset2May be the same or different.
Associated voltage UF1: the battery power mode is that the related voltage is controlled according to the power and the temperature of the working storage battery. Wherein the associated voltage is determined by the charge and temperature of the working accumulatorsocAnd an inline voltage drop correlation determination of the charging circuit of the generator and the working battery. Wherein, the optimum charging voltage value U of the working storage battery under different electric quantities and temperaturessocThe battery characteristics determine the characteristics of the battery, and common battery manufacturers provide the characteristics; the voltage drop on the line is Uline1＝Itbatt1*Rline1(ii) a Wherein R isline1Is the resistance of the charging circuit, Itbatt1Is the current flowing through the charging loop. In particular, the associated voltage UF1＝Usoc1+Uline1。
For example, when the secondary control mode is a dual-battery mode, each associated voltage may be determined according to the following principle:
associated voltage UA2: the failure mode is fixed voltage value power generation, UA2＝U1(ii) a Wherein, U1Set by a skilled person according to need or empirical values. Wherein, U1And U0The values may be the same or different. Typically, the two values are different, U1Is greater than U0The numerical value of (c).
Associated voltage UB2: the battery temperature mode is that the associated voltage is controlled according to the temperature of the working battery (two batteries). Wherein the associated voltage is determined by the optimum charging voltage value U of the working accumulator at the current temperaturetbatt1And Utbatt1And the voltage drop U on the line of the charging circuit of the generator and of the working accumulatorline1And Uline2And (4) determining the association. Wherein, each storage battery has an optimum charging voltage value U at different temperaturestbatt1And Utbatt1The characteristics of each storage battery are determined, and common storage battery manufacturers can provide the characteristics; one battery has an on-line voltage drop of Uline1＝Itbatt1*Rline1(ii) a Wherein R isline1Is the resistance of the charging circuit, Itbatt1For flowing through the charging loopThe current of (2). The voltage drop on the line of another accumulator is Uline2＝Itbatt2*Rline2(ii) a Wherein R isline2Is the resistance of the charging circuit, Itbatt2Is the current flowing through the charging loop. Specifically, when the temperature signals of the two storage batteries are both effective, the voltage U is correlatedB2＝[(Utbatt1+Uline1)+(Utbatt2+Uline2)]/2. If the temperature of only one battery is valid, the associated voltage, i.e. U, is determined as a function of the valid operating batteryB2＝Utbatt1+Uline1Or U isB2＝Utbatt2+Uline2。
Associated voltage UC2: the associated voltage of the generator in the vehicle start mode is 10600mV, UC210600 mV; wherein the associated voltage may be set or adjusted by a technician as needed or empirically. Wherein, UC2And UC1The values may be the same or different. Typically, both values are the same.
Associated voltage UD2: the associated voltage of the generator in the vehicle acceleration mode is: associated voltage U of battery temperature modeB2By subtracting an offset Uoffset1'I.e. UD2＝UB2-Uoffset1'(ii) a Wherein, the offset Uoffset1'Can be set or adjusted by a skilled person according to need or empirical values. Wherein, Uoffset1'And Uoffset1The values may be the same or different. Typically, both values are the same.
Associated voltage UE2: the associated voltage of the generator in the vehicle deceleration mode is: associated voltage U of battery temperature modeB2Plus an offset Uoffset2'I.e. UE2＝UB2+Uoffset2'(ii) a Wherein, the offset Uoffset2'Can be set or adjusted by a skilled person according to need or empirical values. Wherein, Uoffset1And Uoffset2'May be the same or different. Typically, both values are the same.
Associated voltage UF2: the battery power mode is that according to the working storage battery (two storage batteries)Battery) and temperature to control the associated voltage. Wherein the associated voltage is determined by the charge and temperature of the working accumulatorsoc1And Usoc2And the voltage drop U on the line of the charging circuit of the generator and of the working accumulatorline1And Uline2And (4) determining the association. Wherein, the optimal charging voltage value U of each storage battery under different electric quantities and temperaturessoc1And Usoc2The characteristics of each storage battery are determined, and common storage battery manufacturers can provide the characteristics; one battery has an on-line voltage drop of Uline1＝Itbatt1*Rline1(ii) a Wherein R isline1Is the resistance of the charging circuit, Itbatt1Is the current flowing through the charging loop. The voltage drop on the line of another accumulator is Uline2＝Itbatt2*Rline2(ii) a Wherein R isline2Is the resistance of the charging circuit, Itbatt2Is the current flowing through the charging loop. Specifically, when the electric quantity and the temperature of the two storage batteries are effective, the voltage U is correlatedF2＝[(Usoc1+Uline1)+(Usoc1＝2+Uline2)]/2. If the temperature of only one battery is valid, the associated voltage, i.e. U, is determined as a function of the valid operating batteryF2＝Usoc1+Uline1Or U isF2＝Usoc1＝2+Uline2。
And S350, determining a voltage adjusting step length according to a voltage difference value between the target voltage and the current voltage of the generator.
The voltage adjustment step is determined by using a voltage adjustment step determination table shown in the following table:
| serial number | Condition | Voltage regulation step (/10ms) |
| 1 | |Uset-Ugen|>Th | 20mV |
| 2 | |Uset-Ugen|≤Th | 0.1|Uset-Ugen|mV |
Wherein, UsetIs the target voltage of the generator, UgenTh is a comparison threshold for the current voltage of the generator, which can be determined or adjusted by the skilled person according to individual needs or empirical values, which may be 100mV, for example.
Due to UgenCannot be read from the bus, so in the cell mode, the battery voltage U is measured via the terminal voltage of the working batterybatt1And the voltage drop U of the power generation circuit of the working accumulatorline1And making an association determination. Wherein, the voltage drop U of the power generation loopline1From the charging current I of the working accumulatorbatt1And the design resistance R of the generator circuitline1Calculated as Uline1＝Ibatt1*Rline1. Accordingly, the current voltage of the generator is: u shapegen＝Ubatt1+Uline1；
In the double-battery mode, the terminal voltage U of one storage battery is usedbatt1And the voltage drop U of the power generation loop of the storage batteryline1Terminal voltage U with another secondary batterybatt2And the voltage drop U of the power generation loop of the storage batteryline2And calculating, and then taking an average value to correct. The voltage drop of the power generation loop is calculated by the charging current of each storage battery and the design resistance value of the generator loop, namely, the loop voltage drop is U for one storage batteryline1＝Ibatt1*Rline1(ii) a Wherein the charging current I of the storage batterybatt1And design of generator circuitResistance value Rline1. For another battery, the loop voltage drop is Uline2＝Ibatt2*Rline2(ii) a Wherein the charging current I of the storage batterybatt2And the design resistance R of the generator circuitline2. Accordingly, the current voltage of the generator is: u shapegen＝[(Ubatt1+Uline1)+(Ubatt2+Uline2)]/2。
And S306, sequentially regulating the current voltage of the generator to a target voltage according to the voltage regulation step length.
Example four
Fig. 4 is a structural diagram of a generator voltage control apparatus in a fourth embodiment of the present application, where the apparatus is implemented by software and/or hardware and is specifically configured in a generator voltage control system, and the generator voltage control system may be integrated in a power management controller of a vehicle.
A generator voltage control apparatus as shown in fig. 4, comprising: a state acquisition module 410, a target vehicle control mode determination module 420, a target voltage determination module 430, and a voltage regulation module 440. Wherein the content of the first and second substances,
the state acquisition module 410 is used for acquiring the battery state of a storage battery associated with the generator and acquiring the vehicle running state of a vehicle in which the generator is positioned;
a target vehicle control mode determination module 420, configured to determine a target vehicle control mode according to the battery state and the vehicle driving state;
a target voltage determination module 430 to determine a target voltage associated with the target vehicle control mode;
and a voltage regulation module 440, configured to regulate the voltage of the generator according to the target voltage.
According to the embodiment of the application, the battery state of the storage battery associated with the generator is acquired through the state acquisition module, and the vehicle running state of the vehicle in which the generator is located is acquired; determining a target vehicle control mode according to the battery state and the vehicle running state through a target vehicle control mode determination module; determining, by a target voltage determination module, a target voltage associated with a target vehicle control mode; and regulating the voltage of the generator according to the target voltage through a voltage regulation module. By adopting the technical scheme, the target vehicle control mode is introduced, so that the determination of different target voltages of the generator under different vehicle control modes is realized, the dynamic regulation control of the voltage of the generator is realized, the oil consumption of the vehicle is reduced, the acceleration response of the vehicle is improved, and the overall performance of the vehicle is improved.
Further, the battery state comprises a power signal and/or a temperature signal;
the vehicle running state includes at least one of a start state, an idle state, an acceleration state, a deceleration state, and a uniform speed state.
Further, the target vehicle control mode determination module 420 is specifically configured to:
if the electric quantity signal and the temperature signal are invalid, and the vehicle running state is in a non-starting state or the vehicle running state is invalid, determining that the target vehicle control mode is a fault mode;
if the electric quantity signal is invalid, the temperature signal is valid, and the vehicle running state is in a non-starting state, determining that the target vehicle control mode is a battery temperature mode;
if the vehicle running state is in a starting state, determining that the target vehicle control mode is a vehicle starting mode;
if the vehicle running state is in an acceleration state and the electric quantity signal is greater than a first set electric quantity threshold value, determining that the target vehicle control mode is a vehicle acceleration mode;
if the vehicle running state is in a deceleration state, determining that the target vehicle control mode is a vehicle deceleration mode;
determining that the target vehicle control mode is a battery charge mode if the vehicle driving state satisfies at least one of the following conditions:
the vehicle running state is in an idling state;
the running state of the vehicle is in a constant speed state; and the number of the first and second groups,
the vehicle running state is in an acceleration state, and the electric quantity signal is smaller than the first set electric quantity threshold value.
Further, the target voltage determining module 430 is specifically configured to:
and searching the associated voltage of the target vehicle control mode according to a preset mode voltage relation table, and taking the associated voltage as the target voltage.
Further, the associated voltage of each vehicle control mode in the mode voltage relationship table is determined according to the following mode:
if the vehicle control mode is a voltage fixed mode, determining the associated voltage of the vehicle control mode according to a preset fixed value;
and if the vehicle control mode is a voltage variation mode, determining the associated voltage of the vehicle control mode according to the battery state and the voltage drop on the charging loop line.
Further, the voltage fixing mode comprises a failure mode and/or a vehicle starting mode;
correspondingly, the determining the associated voltage of the vehicle control mode according to the preset fixed value includes:
if the voltage fixing mode is a fault mode, setting the associated voltage of the vehicle control mode as a preset fault fixing voltage;
and if the voltage fixing mode is the vehicle starting mode, setting the relevant voltage of the vehicle control mode as a preset starting fixing voltage.
Further, the voltage variation mode includes at least one of a battery temperature mode, a battery charge mode, a vehicle acceleration mode, and a vehicle deceleration mode;
correspondingly, the determining the associated voltage of the vehicle control mode according to the battery state and the voltage drop on the charging loop line comprises:
if the voltage variation mode is a battery temperature mode, determining a temperature initial voltage according to a temperature signal in the battery state; correcting the initial temperature voltage according to the voltage drop on the charging loop line to obtain the temperature voltage of the battery; taking the battery temperature voltage as a correlated voltage of the vehicle control mode;
if the voltage variation mode is a battery electric quantity mode, determining electric quantity initial voltage according to an electric quantity signal and a temperature signal in the battery state; correcting the initial voltage of the electric quantity according to the voltage drop on the charging loop line to obtain the electric quantity voltage of the battery; and taking the battery charge voltage as the associated voltage of the vehicle control mode.
If the voltage fixing mode is a vehicle acceleration mode, determining the associated voltage of the vehicle control mode according to a preset negative offset and the battery temperature and voltage;
and if the voltage fixing mode is a vehicle deceleration mode, determining the associated voltage of the vehicle control mode according to a preset forward offset and the battery temperature voltage.
Further, the apparatus further comprises:
the inter-battery connection state determining module is used for acquiring the inter-battery connection state if the vehicle where the generator is located comprises at least two storage batteries;
the target battery power supply mode determining module is used for determining a target battery power supply mode according to the connection state between the batteries; the target battery power mode includes a cell mode and a multi-battery mode;
accordingly, the target vehicle control mode determination module 420 is specifically configured to:
selecting a target vehicle control mode of the target battery power supply modes according to the battery state and the vehicle running state.
Further, the voltage regulation module 440 is specifically configured to:
determining a voltage adjustment step length according to a voltage difference value between the target voltage and the current voltage of the generator;
and sequentially adjusting the current voltage of the generator to the target voltage according to the voltage adjustment step length.
The generator voltage control device can execute the generator voltage control method provided by any embodiment of the application, and has the corresponding functional modules and beneficial effects of executing the generator voltage control method.
EXAMPLE five
Fig. 5 is a structural diagram of a generator voltage control system according to a fifth embodiment of the present invention. The generator voltage control system as shown in fig. 5 comprises: input device 510, output device 520, processor 530, and storage device 540.
The input device 510 is used for acquiring a battery state of a storage battery associated with the generator, and acquiring a vehicle running state of a vehicle in which the generator is located;
and an output device 520 for outputting a voltage to the generator to perform voltage regulation on the generator according to the target voltage.
One or more processors 530;
a storage 540 for storing one or more programs.
In fig. 5, a processor 530 is taken as an example, the input device 510 in the generator voltage control system may be connected to the output device 520, the processor 530 and the storage device 540 through a bus or other means, and the processor 530 and the storage device 540 are also connected through a bus or other means, which is taken as an example in fig. 5.
In the present embodiment, the processor 530 in the generator voltage control system may control the input device 510 to obtain the battery state of the storage battery associated with the generator, and obtain the vehicle driving state of the vehicle in which the generator is located; processor 530 may also be controlled to determine a target vehicle control mode based on the battery status and the vehicle travel status; processor 530 may also be controlled to determine a target voltage associated with the target vehicle control mode; the output device 520 may also be controlled to output a voltage to the generator to provide voltage regulation to the generator based on the target voltage.
The storage device 540 of the generator voltage control system may be used as a computer-readable storage medium for storing one or more programs, such as software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the generator voltage control method according to the embodiment of the present invention (for example, the state obtaining module 410, the target vehicle control mode determining module 420, the target voltage determining module 430, and the voltage adjusting module 440 shown in fig. 4). The processor 530 executes various functional applications and data processing of the generator voltage control system by executing software programs, instructions and modules stored in the storage device 540, that is, implements the generator voltage control method in the above method embodiment.
The storage device 540 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the stored data area may store data and the like (the battery state, the vehicle running state, the target vehicle control mode, the target voltage, and the like in the above-described embodiments). In addition, the storage 540 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage 540 may further include memory located remotely from processor 530, which may be connected to a server over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
EXAMPLE six
The embodiment of the application also provides a power management controller, and a generator voltage control system as shown in fig. 5 is integrated in the power management controller.
EXAMPLE seven
The embodiment of the application also provides a vehicle which comprises the power management controller provided by the sixth embodiment.
Example eight
An eighth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a generator voltage control apparatus, implements a generator voltage control method provided in the embodiments of the present invention, where the method includes: acquiring a battery state of a storage battery associated with the generator and a vehicle running state of a vehicle in which the generator is located; determining a target vehicle control mode according to the battery state and the vehicle running state; determining a target voltage associated with the target vehicle control mode; and regulating the voltage of the generator according to the target voltage.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (8)
1. A generator voltage control method, comprising:
acquiring a battery state of a storage battery associated with the generator and a vehicle running state of a vehicle in which the generator is located;
determining a target vehicle control mode according to the battery state and the vehicle running state;
determining a target voltage associated with the target vehicle control mode;
according to the target voltage, performing voltage regulation on the generator;
the battery state comprises an electric quantity signal and/or a temperature signal;
the vehicle running state comprises at least one of a starting state, an idling state, an accelerating state, a decelerating state and a uniform speed state;
the determining a target vehicle control mode according to the battery state and the vehicle driving state includes:
if the electric quantity signal and the temperature signal are invalid, and the vehicle running state is in a non-starting state or the vehicle running state is invalid, determining that the target vehicle control mode is a fault mode;
if the electric quantity signal is invalid, the temperature signal is valid, and the vehicle running state is in a non-starting state, determining that the target vehicle control mode is a battery temperature mode;
if the vehicle running state is in a starting state, determining that the target vehicle control mode is a vehicle starting mode;
if the vehicle running state is in an acceleration state and the electric quantity signal is greater than a first set electric quantity threshold value, determining that the target vehicle control mode is a vehicle acceleration mode;
if the vehicle running state is in a deceleration state, determining that the target vehicle control mode is a vehicle deceleration mode;
determining that the target vehicle control mode is a battery charge mode if the vehicle driving state satisfies at least one of the following conditions:
the vehicle running state is in an idling state;
the running state of the vehicle is in a constant speed state; and the number of the first and second groups,
the vehicle running state is in an acceleration state, and the electric quantity signal is smaller than the first set electric quantity threshold value.
2. The method of claim 1, wherein determining a target voltage associated with the target vehicle control mode comprises:
and searching the associated voltage of the target vehicle control mode according to a preset mode voltage relation table, and taking the associated voltage as the target voltage.
3. The method of claim 2, wherein the associated voltage for each vehicle control mode in the mode voltage relationship table is determined according to:
if the vehicle control mode is a voltage fixed mode, determining the associated voltage of the vehicle control mode according to a preset fixed value; wherein the voltage fixation mode comprises a failure mode and/or a vehicle start mode;
if the vehicle control mode is a voltage variation mode, determining the relevant voltage of the vehicle control mode according to the battery state and the voltage drop on a charging loop line; wherein the voltage variation mode includes at least one of a battery temperature mode, a battery charge mode, a vehicle acceleration mode, and a vehicle deceleration mode.
4. The method according to any one of claims 1-3, further comprising:
if the vehicle where the generator is located comprises at least two storage batteries, acquiring the connection state between the batteries;
determining a target battery power supply mode according to the connection state between the batteries; the target battery power mode includes a cell mode and a multi-battery mode;
correspondingly, determining a target vehicle control mode according to the battery state and the vehicle running state comprises the following steps:
selecting a target vehicle control mode of the target battery power supply modes according to the battery state and the vehicle running state.
5. The method of any one of claims 1-3, wherein the voltage regulating the generator based on the target voltage comprises:
determining a voltage adjustment step length according to a voltage difference value between the target voltage and the current voltage of the generator;
and sequentially adjusting the current voltage of the generator to the target voltage according to the voltage adjustment step length.
6. A generator voltage control apparatus, comprising:
the state acquisition module is used for acquiring the battery state of a storage battery associated with the generator and acquiring the vehicle running state of a vehicle in which the generator is positioned;
the target vehicle control mode determining module is used for determining a target vehicle control mode according to the battery state and the vehicle running state;
a target voltage determination module to determine a target voltage associated with the target vehicle control mode;
the voltage regulation module is used for regulating the voltage of the generator according to the target voltage;
the battery state comprises an electric quantity signal and/or a temperature signal;
the vehicle running state comprises at least one of a starting state, an idling state, an accelerating state, a decelerating state and a uniform speed state;
the target vehicle control mode determination module is specifically configured to:
if the electric quantity signal and the temperature signal are invalid, and the vehicle running state is in a non-starting state or the vehicle running state is invalid, determining that the target vehicle control mode is a fault mode;
if the electric quantity signal is invalid, the temperature signal is valid, and the vehicle running state is in a non-starting state, determining that the target vehicle control mode is a battery temperature mode;
if the vehicle running state is in a starting state, determining that the target vehicle control mode is a vehicle starting mode;
if the vehicle running state is in an acceleration state and the electric quantity signal is greater than a first set electric quantity threshold value, determining that the target vehicle control mode is a vehicle acceleration mode;
if the vehicle running state is in a deceleration state, determining that the target vehicle control mode is a vehicle deceleration mode;
determining that the target vehicle control mode is a battery charge mode if the vehicle driving state satisfies at least one of the following conditions:
the vehicle running state is in an idling state;
the running state of the vehicle is in a constant speed state; and the number of the first and second groups,
the vehicle running state is in an acceleration state, and the electric quantity signal is smaller than the first set electric quantity threshold value.
7. A generator voltage control system, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a generator voltage control method as claimed in any one of claims 1-5.
8. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out a generator voltage control method according to any one of claims 1-5.
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