CN111907371B - Vehicle high-voltage accessory energy control method and energy control system - Google Patents

Vehicle high-voltage accessory energy control method and energy control system Download PDF

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Publication number
CN111907371B
CN111907371B CN202010796765.6A CN202010796765A CN111907371B CN 111907371 B CN111907371 B CN 111907371B CN 202010796765 A CN202010796765 A CN 202010796765A CN 111907371 B CN111907371 B CN 111907371B
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China
Prior art keywords
vehicle
power
voltage accessory
battery
voltage
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CN111907371A (en
Inventor
谢世滨
萧永胜
刘国瑞
杨兴旺
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Automobile Research and Development Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Automobile Research and Development Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00Supplying electric power to auxiliary equipment of vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08Interaction between the driver and the control system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a vehicle high-voltage accessory energy control method and system, wherein the energy control method comprises the following steps: according to battery information of a power battery output by a battery controller, when the running state of the vehicle is judged to be a normal mode, controlling a high-voltage accessory to distribute power through the vehicle control unit according to request information of a driver on the man-machine interaction system; wherein the request information includes a defrosting request, a driver rapid acceleration driving request and a requested power for driving the vehicle. And monitoring the information of the power battery in real time, and limiting the power distribution of the high-voltage accessories in time when judging that the power battery reports a safety threshold of a triggering function or the power battery reports fault information.

Description

Vehicle high-voltage accessory energy control method and energy control system
Technical Field
The invention relates to the technical field of energy management of electric automobiles, in particular to a vehicle high-voltage accessory energy control method and an energy control system for realizing the energy control method.
Background
With the continuous development of new energy technology, the electric automobile occupies a new automobile with larger and larger output. Because the power battery provides energy when the electric automobile runs, and the high-voltage accessories such as the air-conditioning compressor and the electric heater consume electric energy when providing comfortable environment for a driver and cooling for a battery system, the endurance mileage of the automobile is reduced, and high requirements are put forward on the control method of the high-voltage accessories.
In the prior art high-voltage accessory energy control method, the defrosting requirement of a driver is not considered when a vehicle runs in a normal mode, and the design requirement of the functional safety of a power battery is not considered. Meanwhile, the high-voltage accessory energy control method in the prior art does not consider the comfort requirement of a driver and does not consider the fault reporting scene of a power battery of an electric vehicle.
Disclosure of Invention
One object of the present invention is to provide a high-pressure accessory that preferentially meets the energy requirements of defrost, functional, and safer for the driver during driving.
A further object of the present invention is to enable the running state of the vehicle in a normal mode to monitor the state of the high-voltage power battery in real time, so as to meet the design requirement of functional safety of the power battery and enable the vehicle to be in a safer and controllable state.
It is a further object of the present invention to differentiate power control of high-pressure accessories by the driver in the absence of a sudden acceleration request when the vehicle is operating in a normal mode.
In particular, the invention provides a vehicle high-voltage accessory energy control method, which comprises the following steps:
according to the battery information of the power battery output by the battery controller, the vehicle control unit judges that the vehicle runs in a normal state;
when the running state of the vehicle is judged to be a normal mode, controlling a high-voltage accessory to distribute power through the vehicle control unit according to request information generated by the operation of a driver on the human-computer interaction system; wherein the request information comprises a defrost request or a request.
Further, when the running state of the vehicle is judged to be in a normal mode, the human-computer interaction system does not receive a defrosting request, the vehicle control unit calculates the requested power for driving the vehicle through an accelerator pedal, and when the dischargeable power of the power battery is larger than the sum of the requested power for driving the vehicle and the power of the high-voltage accessories, the high-voltage accessories are controlled to carry out power distribution.
Further, when the running state of the vehicle is judged to be in a normal mode, the human-computer interaction system does not receive a defrosting request, the vehicle control unit calculates the requested power for driving the vehicle through an accelerator pedal, and when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessory and the judgment is made that the driver has a driving requirement for rapid acceleration, the power of the high-voltage accessory is controlled to be limited below a first set value.
Further, when the running state of the vehicle is judged to be in a normal mode, the human-computer interaction system receives a defrosting request or a defrosting request, the vehicle control unit calculates the requested power for driving the vehicle through an accelerator pedal, and when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessories and the judgment is made that the driver does not have a driving request for rapid acceleration, the power of the high-voltage accessories is controlled to be limited below a second set value.
Further, when the running state of the vehicle is judged to be an abnormal mode and the human-computer interaction system does not receive the request information, the vehicle control unit judges that the power battery exceeds a functional safety threshold value according to the battery information of the power battery output by the battery controller, and the high-voltage accessory is limited to carry out power zero.
Further, when the running state of the vehicle is judged to be in an abnormal mode, the power battery reports a fault, and when the power battery has a serious fault, the power of the high-voltage accessory is controlled to be zero.
Further, when it is determined that the running state of the vehicle is the abnormal mode and the power battery has a medium-level fault, the power of the high-voltage accessories is controlled to a third set value.
Further, when the running state of the vehicle is judged to be a failure mode and the power battery has a slight failure, the power of the high-voltage accessories is controlled to a fourth set value.
The invention also provides a vehicle high-voltage accessory energy control system, which is used for realizing the vehicle high-voltage accessory energy control method in the embodiment, and is characterized in that the high-voltage accessory energy control system comprises:
the vehicle control unit is used for acquiring vehicle information and controlling power distribution of high-voltage accessories, wherein the vehicle information comprises battery information and request information;
the battery controller is connected with the vehicle control unit and used for outputting the battery information of the power battery and transmitting the battery information to the vehicle control unit;
the human-computer interaction system is connected with the vehicle control unit and used for providing a defrosting request, a request and a driving mode request and transmitting corresponding request information to the vehicle control unit;
the high-voltage accessory comprises a direct-current step-down transformer, an air conditioner compressor and an electric heater, and the high-voltage accessory is connected with the vehicle control unit so that the vehicle control unit controls power distribution of the high-voltage accessory.
Further, the vehicle high voltage accessory energy control system further comprises:
the air conditioner controller is connected with the vehicle control unit and used for providing ventilation and cooling request information of a cockpit and transmitting the ventilation and cooling request information to the vehicle control unit;
and the vehicle control unit judges whether the driver has an urgent acceleration requirement according to the position change of the accelerator pedal and calculates the requested power for driving the vehicle.
According to the vehicle high-voltage accessory energy control method, when the running state of the vehicle is in a normal mode, the energy requirement of the high-voltage accessory with the defrosting function can be met preferentially, and a driver can be safer in the running process.
Furthermore, the vehicle high-voltage accessory energy control method enables the state of the high-voltage power battery to be monitored in real time when the running state of the vehicle is in a normal mode, meets the functional safety design requirement of the power battery, and enables the vehicle to be in a safer controllable state. The vehicle high-voltage accessory energy control method can distinguish power control of high-voltage accessories of a driver with or without a rapid acceleration requirement, meets the driving request power of the driver as far as possible, and simultaneously gives consideration to the comfort requirement of drivers and passengers.
Furthermore, the vehicle high-voltage accessory energy control method can also monitor the faults of the power battery in real time and can control the energy of the high-voltage accessory according to the fault level.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a flow chart of a vehicle high voltage accessory energy control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of high voltage accessory energy control when the operating condition of the vehicle is normal according to the present invention;
FIG. 3 is a flow chart of high voltage accessory energy control when the operating condition of the vehicle is an abnormal mode according to the present invention;
FIG. 4 is a control schematic of the vehicle high voltage accessory energy control system.
Reference numerals:
a vehicle control unit 10;
a human-computer interaction system 20;
a battery controller 30;
a high voltage accessory 40; a direct current step-down transformer 41; an air conditioning compressor 42; an electric heater 43;
an accelerator pedal 50;
an air conditioning controller 60.
Detailed Description
Referring to fig. 1 to 3, the vehicle high-voltage accessory energy control method according to the embodiment of the present invention is mainly applied to energy control (also referred to as power control) of a high-voltage accessory 40 of an electric vehicle, and mainly includes the following steps:
s1, according to the battery information of the power battery output by the battery controller: if the triggering function safety threshold event is not reported, the fault is not reported, and the vehicle is judged to be in a normal mode;
s2, when the running state of the vehicle is judged to be a normal mode, controlling the high-voltage accessories to distribute power through the vehicle control unit according to request information generated by the operation of a driver of the human-computer interaction system and the accelerator pedal; wherein the request information includes a defrost request and a driver actuation request.
And S3, controlling the high-voltage accessories to distribute power through the vehicle control unit when the running state of the vehicle is judged to be in an abnormal mode according to the battery triggering function safety threshold or the battery fault information.
According to an embodiment of the present invention, referring to fig. 1 and 3, when it is determined that the operating state of the vehicle is the normal mode and the driver sends a request for a defrosting function in the human-computer interaction system 20, the vehicle control unit 10 can preferentially meet the energy requirement of the high-voltage accessories 40 of the defrosting function. Therefore, the vehicle high-voltage accessory energy control method meets the requirement of the front driving vision of the driver, and enables the driver to be safer in the driving process.
When the running state of the vehicle is judged to be a normal mode, the driver does not send a defrosting request on the human-computer interaction system 20, the vehicle controller 10 calculates the requested power for driving the vehicle through the accelerator pedal 50, and when the dischargeable power of the power battery is greater than the sum of the requested power for driving the vehicle and the power of the high-voltage accessories 40, the high-voltage accessories 40 are controlled to perform power distribution, so that the power requirement of the high-voltage accessories 40 can be met.
When the running state of the vehicle is judged to be a normal mode, and the driver does not send a defrosting request or a defrosting request on the human-computer interaction system 20, the vehicle control unit 10 calculates the requested power for driving the vehicle through the accelerator pedal 50, and when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessories 40, and the driver is judged to have a driving request for accelerating suddenly, the power of the high-voltage accessories 40 is controlled to be limited below a first set value at the moment. Therefore, the vehicle high-voltage accessory energy control method gives consideration to the driving comfort requirement, and meets the requirement of the driver on rapid acceleration as far as possible.
When the running state of the vehicle is judged to be a normal mode, the driver does not send a defrosting request on the human-computer interaction system 20, the vehicle control unit 10 calculates the requested power for driving the vehicle through the accelerator pedal 50, and when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessories 40, and the driver does not have a driving requirement for rapid acceleration, the power of the high-voltage accessories 40 is controlled to be limited below a second set value. The driver's vehicle driving request power is taken into consideration, and the passenger's comfort requirement is taken into consideration, for example, when the air-conditioning controller 60 provides the cabin ventilation cooling requirement, only the air-conditioning compressor 42 in the high-voltage accessory 40 can be controlled to work, and other accessories (such as the electric heater 43) in the high-voltage accessory 40 can be controlled not to work, so that the cabin ventilation cooling requirement is met.
In some embodiments of the invention, reference is made to fig. 1 and 3
When the running state of the vehicle is judged to be an abnormal mode, and the vehicle controller 10 controls the power of the high-voltage accessories 40 to be limited to zero according to the condition that the power battery output by the battery controller 30 exceeds the functional safety threshold. That is, the vehicle controller 10 limits the power of the high-voltage accessories 40 to zero, such as when the temperature of the power battery reaches a certain threshold, which may be considered to be a power battery safety threshold. The functional safety design requirement of the power battery is ensured to be met, and the vehicle is in a safer controllable state.
When the running state of the vehicle is judged to be an abnormal mode, the vehicle controller 10 monitors and receives the fault information sent by the battery controller 30, processes the fault information according to the grade of the fault mode, and controls the power of the high-voltage accessories 40 to be zero when the power battery has a serious fault.
When it is determined that the running state of the vehicle is the abnormal mode and the power battery has a medium-level fault, the power of the high-voltage accessories 40 is controlled to a third set value.
When the running state of the vehicle is judged to be the abnormal mode and the power battery has slight fault, the power of the high-voltage accessories 40 is controlled to be below the fourth set value, the high-voltage accessories 40 are allowed to work in most ranges, and the energy management requirement of the high-voltage accessories 40 is met. Wherein the fourth set point is greater than the third set point.
In summary, according to the vehicle high-voltage accessory energy control method of the present invention, when the vehicle is in the normal mode, the energy requirement of the high-voltage accessory 40 with the defrosting function can be preferentially satisfied, so that the driver is safer during driving. The vehicle high-voltage accessory energy control method can distinguish the power control of the high-voltage accessory 40 under the condition that the driver has a sudden acceleration requirement, meets the driving power requirement of the driver as far as possible, and simultaneously gives consideration to the comfort requirement of drivers and passengers. In addition, the vehicle high-voltage accessory energy control method enables the vehicle to monitor the state of the high-voltage power battery in real time, meets the design requirement of functional safety of the power battery, and enables the vehicle to be in a safer and controllable state. The vehicle high-voltage accessory energy control method can also monitor the power battery fault in real time and can control the energy of the high-voltage accessory 40 according to the fault level.
The invention also provides a vehicle high-voltage accessory energy control system, which is used for realizing the vehicle high-voltage accessory energy control method in the embodiment, referring to fig. 4, the high-voltage accessory energy control system mainly comprises a vehicle control unit 10, a battery controller 30, a man-machine interaction system 20, a high-voltage accessory 40, an air conditioner controller 60 and an accelerator pedal 50. The vehicle controller 10 is configured to obtain vehicle information and control power distribution of the high-voltage accessories 40, where the vehicle information includes battery information and request information. The battery controller 30 is connected to the vehicle control unit 10, and the battery controller 30 is configured to output battery information of the power battery and transmit the battery information to the vehicle control unit 10. The human-computer interaction system 20 is connected with the vehicle control unit 10, and the human-computer interaction system 20 is configured to provide a defrosting function request and transmit the request information to the vehicle control unit 10. The high-voltage accessory 40 mainly includes a dc voltage reducer 41, an air-conditioning compressor 42, and an electric heater 43, and the dc voltage reducer 41, the air-conditioning compressor 42, and the electric heater 43 are respectively connected to the vehicle controller 10, so that the vehicle controller 10 controls power distribution of the high-voltage accessory 40. The accelerator pedal 50 is connected to the vehicle controller 10, and the vehicle controller 10 determines whether the driver has an urgent acceleration request and calculates a requested power for driving the vehicle according to a change in the position of the accelerator pedal 50. The air conditioning controller 60 is connected to the vehicle control unit 10, and the air conditioning controller 60 is configured to provide the request information for ventilation and cooling of the cockpit, and transmit the request information for ventilation and cooling to the vehicle control unit 10. The vehicle high-voltage accessory energy control system can effectively realize a vehicle high-voltage accessory energy control method, meets the energy management requirement of the high-voltage accessory 40, is beneficial to saving electric energy and improving the endurance mileage of the electric vehicle in a normal working mode.
Other configurations and control principles of the high voltage accessory energy control system according to embodiments of the present invention will be understood and readily implemented by those skilled in the art and will not be described in detail.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (8)

1. A vehicle high-voltage accessory energy control method, comprising the steps of:
judging the running state of the vehicle according to battery information of a power battery output by a battery controller;
when the running state of the vehicle is judged to be a normal mode, controlling the high-voltage accessories to carry out power distribution through the vehicle control unit according to request information generated by the operation of a driver on the human-computer interaction system; wherein the request information includes a defrost request;
when the running state of the vehicle is judged to be a normal mode and the human-computer interaction system does not receive the request information, the vehicle controller calculates the request power for driving the vehicle through an accelerator pedal, and controls the high-voltage accessories to carry out power distribution when the dischargeable power of the power battery is larger than the sum of the request power for driving the vehicle and the power of the high-voltage accessories;
and when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessory and the driver is judged to have a driving request for rapid acceleration, controlling the power of the high-voltage accessory to be smaller than or equal to a first set value.
2. The vehicle high-voltage accessory energy control method according to claim 1, characterized by controlling the power of the high-voltage accessory to be equal to or less than a second set value when the dischargeable power of the power battery is smaller than the sum of the requested power for driving the vehicle and the power of the high-voltage accessory and it is judged that the driver has no driving request for rapid acceleration.
3. The vehicle high-voltage accessory energy control method according to claim 1, characterized in that when the running state of the vehicle is determined to be an abnormal mode and the power battery exceeds a functional safety threshold, the power of the high-voltage accessory is limited to zero.
4. The vehicle high-voltage accessory energy control method according to claim 3, wherein when the running state of the vehicle is judged to be an abnormal mode and a power battery does not exceed a functional safety threshold, when the power battery has a serious failure, the power of the high-voltage accessory is controlled to be zero.
5. The vehicle high voltage accessory energy control method of claim 4, wherein the power of the high voltage accessory is controlled to a third set point when a medium fault occurs in the power battery.
6. The vehicle high voltage accessory energy control method of claim 5, wherein the power of the high voltage accessory is controlled to a fourth set point when the power battery fails slightly.
7. A vehicle high voltage accessory energy control system for implementing the vehicle high voltage accessory energy control method of any one of claims 1-6, the high voltage accessory energy control system comprising:
the vehicle control unit is used for acquiring vehicle information and controlling power distribution of high-voltage accessories, wherein the vehicle information comprises battery information and request information;
the battery controller is connected with the vehicle control unit and used for outputting the battery information of the power battery and transmitting the battery information to the vehicle control unit;
the human-computer interaction system is connected with the vehicle control unit and used for providing a defrosting request and transmitting corresponding request information to the vehicle control unit;
the high-voltage accessory comprises a direct-current step-down transformer, an air conditioner compressor and an electric heater, and the high-voltage accessory is connected with the vehicle control unit so that the vehicle control unit controls power distribution of the high-voltage accessory.
8. The vehicle high voltage accessory energy control system of claim 7, further comprising:
the air conditioner controller is connected with the vehicle control unit and used for providing ventilation and cooling request information of a cockpit and transmitting the ventilation and cooling request information to the vehicle control unit;
and the vehicle control unit judges whether the driver has an urgent acceleration requirement or not according to the position change of the accelerator pedal and calculates the requested power for driving the vehicle.
CN202010796765.6A 2020-08-10 2020-08-10 Vehicle high-voltage accessory energy control method and energy control system Active CN111907371B (en)

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