CN111409576B - Vehicle generator control method and system - Google Patents
Vehicle generator control method and system Download PDFInfo
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- CN111409576B CN111409576B CN201910016206.6A CN201910016206A CN111409576B CN 111409576 B CN111409576 B CN 111409576B CN 201910016206 A CN201910016206 A CN 201910016206A CN 111409576 B CN111409576 B CN 111409576B
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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
Abstract
The invention relates to a vehicle generator control method and a vehicle generator control system. The control method comprises the following steps: 1) judging the state of the vehicle, and judging the road condition information in front of the vehicle when the vehicle is in a starting acceleration state; 2) if the road condition in front is traffic jam, the generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged. The invention also considers the road condition in the generator control process, and solves the problem of frequent charging and discharging of the storage battery caused by the fact that the road condition is not considered in the current control process.
Description
Technical Field
The invention belongs to the technical field of vehicle generator control, and particularly relates to a vehicle generator control method and system.
Background
The traditional generator is used as an engine accessory and is always in a working state in the running process of a vehicle, but intelligent adjustment cannot be carried out according to the running state of the vehicle, the charge state of a storage battery, road slope information and the like, so that the storage battery can be charged by 100%, and energy waste is caused.
In order to achieve the purpose of energy conservation and emission reduction, the Chinese patent application with the application publication number of CN103970078A discloses an intelligent management control system and a method for an automobile power supply, wherein the control system comprises an intelligent generator, a storage battery sensor, an engine management system, an intelligent power supply management control system, an automobile body electronic stabilizing system, an automobile body controller and a light controller; the intelligent power management controller is connected with the storage battery sensor and the intelligent generator through an LIN bus; the power supply intelligent management controller is connected with the automobile body electronic stabilizing system, the automobile body controller, the engine management system and the light controller through the CAN bus; the system adjusts the excitation current of the generator in real time by judging the actual running state of the automobile, the running state of the intelligent generator and the state of the storage battery, realizes accurate control of the running of the intelligent generator and improves the oil-saving effect. However, the control system has the following disadvantages:
the influence of road conditions is not considered in the control process, for example, in the starting and accelerating process, if a traffic jam occurs in a front road section, the vehicle can be frequently started and stopped, and according to the control strategy, the storage battery can be frequently charged and discharged, so that the service life of the storage battery is influenced.
Disclosure of Invention
The invention aims to provide a vehicle generator control method and a vehicle generator control system, which are used for solving the problem that the storage battery is frequently charged and discharged because the road condition is not considered in the current control process.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a vehicle generator control method, which comprises the following steps: 1) judging the state of the vehicle, and judging the road condition information in front of the vehicle when the vehicle is in a starting acceleration state; 2) if the road condition in front is traffic jam, the generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged.
The control method has the beneficial effects that: road conditions are also considered in the control process of the generator, and the problem that the storage battery is frequently charged and discharged due to the fact that the road conditions are not considered in the control process at present is solved.
In order to realize that the vehicle is in the starting acceleration state, and the place ahead road conditions do not appear better control and improvement vehicle fuel economy effect of charging the battery under the traffic congestion condition, further, when the vehicle is in the starting acceleration state, and the place ahead road conditions do not appear when the traffic congestion, control the generator according to battery SOC: if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery; if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle; if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery; battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
In order to realize better control of the charging of the storage battery and improve the fuel-saving effect of the vehicle under the condition that the vehicle runs on an uphill road section, further, when the vehicle runs on the uphill road section, the generator is controlled according to the SOC of the storage battery: if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery; if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle; if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery; battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
In order to realize the recovery of energy when the vehicle is in deceleration or downhill, further, when the vehicle is in a deceleration state or a downhill state, the generator is controlled to output a voltage larger than the voltage value of the current storage battery end, and the storage battery is charged.
In order to realize better control of the charging of the storage battery under the condition of constant speed of the vehicle and improve the fuel-saving effect of the vehicle, further, when the vehicle is in the constant speed state, the generator is controlled according to the SOC of the storage battery: if the SOC of the storage battery is in a recovery area or a circulation area, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle; if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery; battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
In order to realize better control of the charging of the storage battery by the vehicle under the idling condition and improve the fuel-saving effect of the vehicle, further, when the vehicle is under the idling condition, the generator is controlled according to the SOC of the storage battery: if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery; if the SOC of the storage battery is in the circulation zone: when the charging current is larger than a first set value, maintaining the voltage output by the generator; when the discharging current is larger than a second set value, the generator is controlled to output the voltage value of the current storage battery end, and the storage battery is not charged or discharged; if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery; battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
In order to realize accurate control of the output voltage of the generator, further, the output voltage of the generator is controlled by controlling the duty ratio of the magnetic field of the generator.
The invention also provides a vehicle generator control system which comprises a controller, and a vehicle information acquisition module and a road condition information acquisition module which are connected with the controller, wherein the vehicle information acquisition module is used for acquiring the information of vehicle speed, torque and accelerator opening degree, the road condition information acquisition module is used for acquiring road condition information, the controller is used for judging the state of the vehicle according to the information acquired by the vehicle information acquisition module, when the vehicle is in a starting acceleration state, the road condition information in front of the vehicle is judged according to the road condition information acquisition module, and if the road condition in front is blocked, the generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged.
The control system has the beneficial effects that: road conditions are also considered in the control process of the generator, and the problem that the storage battery is frequently charged and discharged due to the fact that the road conditions are not considered in the control process at present is solved.
In order to realize that the vehicle is in the starting acceleration state, and the place ahead road conditions do not appear better control and improvement vehicle fuel economy effect of charging the battery under the traffic congestion condition, furtherly, this control system still includes the battery sensor of being connected with the controller, and the battery sensor is used for gathering the battery SOC state, and when the vehicle is in the starting acceleration state, and the place ahead road conditions do not appear the traffic congestion, controls the generator according to the battery SOC information that the battery sensor gathered: if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery; if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle; if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery; battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
In order to realize the recovery of energy when the vehicle is in deceleration or downhill, further, when the vehicle is in a deceleration state or a downhill state, the generator is controlled to output a voltage larger than the voltage value of the current storage battery end, and the storage battery is charged.
Drawings
FIG. 1 is a flow chart of a vehicle generator control method of the present invention;
fig. 2 is a schematic structural diagram of a vehicle generator control system of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Method for controlling generator of vehicle
In order to solve the problem that the storage battery is frequently charged and discharged due to the fact that road conditions are not considered in the current generator control process, the vehicle generator control method in the embodiment comprises the following steps: 1) judging the state of the vehicle, and judging the road condition information in front of the vehicle when the vehicle is in a starting acceleration state; 2) if the road condition in front is traffic jam, the generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged.
The acceleration state of the vehicle comprises a starting acceleration state and a passing acceleration state, and whether the vehicle is in the starting acceleration state or the passing acceleration state is judged according to information such as the collected vehicle speed, the collected torque percentage, the collected accelerator opening change rate and the like: if the vehicle speed is less than or equal to Akm/h, the torque percentage is greater than or equal to B%, the accelerator opening is greater than or equal to C%, and the like are sequentially met, judging that the vehicle is in a starting acceleration state; if the vehicle speed is greater than or equal to Dkm/h, the torque percentage is greater than or equal to E%, the accelerator opening is greater than or equal to F%, the accelerator opening change rate is greater than or equal to G%, and the like are sequentially met, the vehicle is judged to be in the overtaking acceleration state. Wherein, the vehicle speed A is less than D, the torque percentage B is less than E, and the accelerator opening C is less than F.
As shown in fig. 1, the power mode is divided into 3 modes, namely, a standing mode, a starting mode and a driving mode, and the power mode is judged by acquiring vehicle information: if the vehicle power supply gear is in an ACC gear or an ON gear and the rotating speed of the engine is 0, judging that the vehicle enters a standing mode; if the vehicle power supply gear is in a START gear, judging to enter a starting mode; and if the vehicle power gear is in the ON gear and the rotating speed of the engine is not 0, judging to enter a driving mode.
The storage battery is divided into a recovery area, a circulation area and a power shortage area according to the SOC state of the storage battery: if the SOC of the storage battery is larger than the SOCmax, the storage battery is in a recovery area, the generator does not charge the storage battery any more at the moment, and the storage battery supplies power to the electric load of the whole vehicle; if the SOCmin is less than or equal to the SOC of the storage battery and less than or equal to the SOCmax, the storage battery is in a circulation zone, the generator supplies power to the electric load of the whole vehicle, the storage battery is not charged or discharged except in the deceleration, sliding and downhill stages, and the SOC state of the storage battery is almost kept unchanged; if battery SOC < SOCmin, the battery is in insufficient voltage district, carries out quick charge to the battery by the generator this moment, makes the battery electric quantity reach SOCmin, prevents that the battery is insufficient voltage, prolongs its life.
In consideration of the difference in the power supply mode and the difference in the SOC of the battery, the control method of the present embodiment includes the following generator control methods in each case, in addition to the above control method.
In the standing mode, the SOC state of the storage battery is obtained, and if the storage battery is in a recovery area and a circulation area, the current power load is not controlled, and the current situation is maintained; if the storage battery is in the power shortage area, all the power loads are controlled to be closed, and the storage battery is ensured to be in a safe electric quantity state, so that difficulty in starting the vehicle is avoided.
And under the starting mode, the intelligent generator is controlled not to work and is completely supplied with power by the storage battery.
Under the driving mode, according to information such as the rotating speed of an engine, the speed of a vehicle, torque, the opening degree of an accelerator, the opening degree of a brake pedal and the like, and information of the slope of an uphill slope and a downhill slope of a road, judging that the current driving state is an acceleration state, a deceleration state, an uphill slope state, a downhill slope state, a constant speed state, an idling state and the like without traffic jam in front, calculating the target voltage of the generator based on the state information of the SOC of the storage battery, and realizing the dynamic voltage regulation of the intelligent generator by controlling the magnetic field duty ratio of the intelligent generator:
(1) acceleration state without traffic jam in front
When the vehicle is in an acceleration state and a front road section without traffic jam is identified, calculating the target voltage of the generator based on the state information, the temperature information and the like of the storage battery SOC, if the storage battery SOC is in a recovery area, controlling the magnetic field duty ratio of the intelligent generator to be reduced to H%, outputting low voltage, supplying power to the power load of the whole vehicle by the storage battery at the moment, minimizing the load of the generator, and only playing a role in maintaining the stable operation of a vehicle-mounted network by the generator; if the SOC of the storage battery is in a circulation zone, controlling the duty ratio of the magnetic field of the intelligent generator to J%, outputting the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the generator when the storage battery is not charged or discharged; if the storage battery SOC is in a power shortage area, the magnetic field duty ratio of the intelligent generator is controlled to be increased to K%, high voltage is output, the storage battery is rapidly charged, and the electric quantity safety of the storage battery is guaranteed.
(2) Deceleration state
Judging whether the vehicle is in a deceleration state (including a sliding stage) according to the collected information of the vehicle speed, the accelerator opening, the brake pedal opening and the like, calculating the target voltage of the generator based on the acquired state information, the temperature information and the like of the storage battery SOC in the deceleration state, controlling the magnetic field duty ratio of the intelligent generator to be increased to K% no matter which region the storage battery SOC is in, outputting high voltage to charge the storage battery, and realizing the recovery of braking energy.
(3) State of ascending slope
Judging the state of the road ahead according to the collected information, and if the gradient is larger than or equal to i0The length of the slope is more than or equal to L0If so, the vehicle is judged to be in an uphill state, and the control strategy is in the same acceleration state in the uphill state, which is not described herein again.
(4) Downhill state
Judging the state of the road ahead according to the collected information, and if the gradient is larger than or equal to i1The length of the slope is more than or equal to L1If the vehicle is in the downhill state, the control strategy is the same as the deceleration state under the downhill state, which is not described herein again.
(5) At uniform speed
Judging whether the vehicle is in a constant speed state according to the acquired information, and if the gradient is less than i0The length of the slope is less than L0If the SOC of the storage battery is in a recovery area and a circulation area, controlling the magnetic field duty ratio of the intelligent generator to J%, outputting the current voltage value of the storage battery end, and supplying power to a load for the whole vehicle by the generator when the storage battery is not charged or discharged; if the storage battery SOC is in the insufficient voltage area, the magnetic field duty ratio of the intelligent generator is controlled to be increased to K%, high voltage is output, the storage battery is rapidly charged at the moment, and the electric quantity safety of the storage battery is guaranteed.
(6) Idling state
Judging an idle state according to the acquired information, if the vehicle speed is less than or equal to 3km/H, the rotating speed is not 0, the opening degree of an accelerator pedal is less than or equal to 2 percent and the vehicle is in a parking state, judging that the vehicle enters the idle state, and if the storage battery SOC is in a recovery area, controlling the magnetic field duty ratio of the intelligent generator to be reduced to H percent and outputting low voltage, wherein the storage battery supplies power to the electric load of the whole vehicle, the load of the generator is minimum, and the generator only plays a role in maintaining the stable operation of a vehicle-mounted network and controls the idle speed of the engine not to be increased; if the SOC of the storage battery is in the circulation zone, if the charging current is larger than I1(A) When the intelligent generator is in use, the intelligent generator is not controlled, the voltage output by the generator is maintained, and the idle speed of the engine is controlled not to be increased; if the SOC of the storage battery is in the circulation zone, if the discharge current is larger than I2(A) Then, controlling the magnetic field duty ratio of the intelligent generator to J%, outputting the voltage value of the current storage battery end, wherein the storage battery is not charged or discharged, and controlling the engine to idle and lift; if the SOC of the storage battery is in a power shortage region, controlling the magnetic field duty ratio of the intelligent generatorAnd increasing to K%, outputting high voltage, realizing rapid charging of the storage battery at the moment, and controlling the engine to idle and increase.
In the embodiment, the power generation voltage is adjusted on line in real time by controlling the magnetic field duty ratio of the generator, the working efficiency of the generator is improved, idling control is performed in an idling state, and fuel consumption is reduced. In another embodiment, the generated voltage may be adjusted by adjusting the exciting current.
In this embodiment, the value of SOCmax is 85% and the value of SOCmin is 70%, as another embodiment, the values of SOCmax and SOCmin may be any other values, for example, the value of SOCmax is any one of [ 85% and 100%, and the value of SOCmin is any one of [ 70% and 80%).
In this embodiment, the value of H% is 10%, the value of J% is 60%, and the value of K% is 90%, as other embodiments, the values of H%, J%, and K% may also be other values, for example, H% is any value of (0%, 20%), J% is any value of (40%, 80%), and K% is any value of (85%, 95%).
In this embodiment, whether the vehicle is in an acceleration state is accurately determined based on the vehicle speed, the torque percentage, and the accelerator opening degree.
The embodiment also considers the road condition in the control process of the generator, and solves the problem that the storage battery is frequently charged and discharged because the road condition is not considered in the current control process.
Vehicle generator control system embodiment
The vehicle generator control system in this embodiment is a hardware system for implementing the control method in the vehicle generator control method embodiment, and the control system in this embodiment includes a controller, and a vehicle information acquisition module and a road condition information acquisition module that are connected to the controller, where the vehicle information acquisition module is used to acquire vehicle speed, torque, and accelerator opening information, the road condition information acquisition module is used to acquire road condition information, the controller is used to determine the state of the vehicle according to the information acquired by the vehicle information acquisition module, and when the vehicle is in a starting acceleration state, determine the road condition information in front of the vehicle according to the road condition information acquisition module, and if the road condition in front is traffic jam, the generator is controlled to output the voltage value at the current storage battery end, so that the storage battery is neither charged nor discharged.
As shown in fig. 2, the vehicle generator control system in this embodiment further includes a battery sensor, a target voltage calculation module, an engine control unit, and an electrical appliance control unit, where the battery sensor is used to monitor information such as charging and discharging current, battery SOC, and voltage of the battery in real time; the target voltage calculation module calculates the target power generation voltage of the intelligent generator according to the current SOC state of the storage battery and feeds the target power generation voltage back to the vehicle control unit; the engine control unit receives the instruction of the whole vehicle controller to regulate the rotating speed of the engine; the electric appliance control unit receives the instruction of the vehicle controller to adjust the working state of electric appliances on the vehicle, such as electric appliances such as a wiper, light and sound.
The road condition information collection module utilizes the internet of vehicles technology in this embodiment, can discern the slope information and the road condition information etc. of the road in the place ahead, and based on this road condition information collection module, this embodiment has promoted the efficiency of intelligent generator energy recuperation and utilization, has increased energy-conserving effect.
In this embodiment, a battery sensor dedicated to monitoring the charging and discharging current, the SOC, and the voltage of the battery in real time is provided, and as another embodiment, the charging and discharging current, the SOC, and the voltage of the battery may be monitored by a battery management system.
The controller in this embodiment is a vehicle control unit, and as another embodiment, a controller provided separately may be used.
The traffic jam information in the place ahead is discerned through road condition information acquisition module to this embodiment, has solved the frequent charge of battery, the discharge problem that leads to of road conditions of not considering among the present control process, has increased battery life.
Claims (8)
1. A vehicle generator control method characterized by comprising the steps of:
1) judging the state of the vehicle, and judging the road condition information in front of the vehicle when the vehicle is in a starting acceleration state;
2) if the road condition in front is traffic jam, the generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged;
when the vehicle is in a starting acceleration state and the road condition in front is not blocked, the generator is controlled according to the SOC of the storage battery:
if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery;
if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle;
if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery;
battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
2. The vehicle generator control method according to claim 1, characterized in that, when the vehicle is running on an uphill road section, the generator is controlled in accordance with the battery SOC:
if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery;
if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle;
if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery;
battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
3. The vehicle generator control method according to claim 1, wherein when the vehicle is in a decelerating state or a downhill state, the generator is controlled to output a voltage larger than a current voltage value of the battery terminal to charge the battery.
4. The vehicle generator control method according to claim 1, wherein when the vehicle is in a constant speed state, the generator is controlled according to the battery SOC:
if the SOC of the storage battery is in a recovery area or a circulation area, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle;
if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery;
battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
5. The vehicle generator control method according to claim 1, characterized in that when the vehicle is in an idling state, the generator is controlled in accordance with the battery SOC:
if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery;
if the SOC of the storage battery is in the circulation zone, when the storage battery is in a charging state and the charging current is larger than a first set value, maintaining the voltage output by the generator; when the storage battery is in a discharging state and the discharging current is larger than a second set value, controlling the generator to output the voltage value of the current storage battery end, wherein the storage battery is not charged or discharged;
if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery;
battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
6. The vehicle generator control method according to any one of claims 1 to 5, wherein the control of the generator output voltage is achieved by controlling a generator field duty ratio.
7. A vehicle generator control system is characterized by comprising a controller, a vehicle information acquisition module and a road condition information acquisition module, wherein the vehicle information acquisition module and the road condition information acquisition module are connected with the controller, the vehicle information acquisition module is used for acquiring vehicle speed, torque and accelerator opening information, the road condition information acquisition module is used for acquiring road condition information, the controller is used for judging the state of a vehicle according to the information acquired by the vehicle information acquisition module, when the vehicle is in a starting acceleration state, the road condition information in front of the vehicle is judged according to the road condition information acquisition module, and if the road condition in front is blocked, a generator is controlled to output the voltage value of the current storage battery end, so that the storage battery is not charged or discharged;
the control system further comprises a storage battery sensor connected with the controller, the storage battery sensor is used for acquiring the SOC state of the storage battery, when the vehicle is in a starting acceleration state and the road condition in front is not blocked, the generator is controlled according to the SOC state of the storage battery acquired by the storage battery sensor:
if the SOC of the storage battery is in the recovery area, controlling the generator to output a voltage smaller than the voltage value of the current storage battery end, and supplying power to the electric load of the whole vehicle by the storage battery;
if the SOC of the storage battery is in the circulation zone, the generator is controlled to output the voltage value of the current storage battery end, the storage battery is not charged or discharged, and the generator supplies power to the electric load of the whole vehicle;
if the SOC of the storage battery is in a power shortage region, controlling the generator to output a voltage larger than the voltage value of the current storage battery end, and rapidly charging the storage battery;
battery SOC in recovery zone > battery SOC in circulation zone > battery SOC in deficit zone.
8. The vehicle generator control system according to claim 7, wherein when the vehicle is in a decelerating state or a downhill state, the generator is controlled to output a voltage larger than a current voltage value of the battery terminal to charge the battery.
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| CN112102517A (en) * | 2020-08-27 | 2020-12-18 | 深圳市星砺达科技有限公司 | Driving behavior recording method, device, equipment and medium |
| CN112659892B (en) * | 2021-01-18 | 2022-11-15 | 湖南行必达网联科技有限公司 | Emergency control method and device for abnormal power failure flameout of vehicle and vehicle |
| CN113442860B (en) * | 2021-08-09 | 2022-12-20 | 北京经纬恒润科技股份有限公司 | Charging management method and system for vehicle-mounted low-voltage storage battery |
| CN114256912A (en) * | 2021-11-19 | 2022-03-29 | 阿尔特汽车技术股份有限公司 | Control method and system of storage battery and vehicle |
| CN115503635B (en) * | 2022-09-23 | 2024-02-23 | 广州市立睿升电子有限公司 | Fuel-saving and power-enhancing method for fuel-oil vehicle |
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