CN112644293A - Electric automobile control system - Google Patents
Electric automobile control system Download PDFInfo
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- CN112644293A CN112644293A CN202011583481.5A CN202011583481A CN112644293A CN 112644293 A CN112644293 A CN 112644293A CN 202011583481 A CN202011583481 A CN 202011583481A CN 112644293 A CN112644293 A CN 112644293A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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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
- B60R16/023—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 transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses an electric automobile control system, which comprises: the power domain controller, the motor controller, the high-voltage drive board, the power drive board and the additional device; the motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires; the motor controller drives the motor to work according to a first control instruction sent by the power domain controller; and the high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay. The structure of the control system of the electric automobile can be optimized, and the control process is simplified.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicles, in particular to an electric automobile control system.
Background
Electromotion, intellectualization, networking and sharing are future development directions of the automobile industry. Compared with the traditional automobile, the new energy automobile, especially the pure electric automobile, has the advantages of zero emission, low noise and the like, and is paid attention and vigorously developed by various countries in the world. With the rapid development of automobile electronic and electrical technology, the number of controllers on the whole automobile is increasing continuously. On one hand, on the premise of insufficient capacity of the conventional vehicle-mounted chip, a plurality of functions of the whole vehicle level are realized by the cooperation of a plurality of controllers; on the other hand, as the technology is relatively immature, the vehicle-mounted functions are gradually improved, and the number of controllers is continuously increased. The above situation brings about the following problems:
1. because each controller is not operated at full load, certain resource reservation can be realized, and the total amount of the resource reservation of the controllers on the whole vehicle is increased sharply along with the increase of the number of the controllers, so that the hardware resource waste is caused;
2. because each controller needs to complete part of the same content development in the development process, including the development of basic functions such as communication, diagnosis and the like, the more the controllers are, the larger the repeated workload is, and the waste of human resources is caused;
3. because the number of the controllers is increased, the length of a communication wiring harness among the controllers is increased continuously, and the cost of the whole vehicle is increased to a certain extent;
4. because the controllers are coupled to each other in function to a certain extent, interaction and time coordination among the controllers are also extremely complex, and if new functions need to be added, a large number of related controllers are needed to modify and test, which is not beneficial to the development of the modularization and the platformization of the whole vehicle.
Disclosure of Invention
The embodiment of the invention provides an electric automobile control system, which can optimize the structure of the electric automobile control system and simplify the control process.
In a first aspect, an embodiment of the present invention provides an electric vehicle control system, including: the power domain controller, the motor controller, the high-voltage drive board, the power drive board and the additional device;
the additional device includes: the system comprises a cooling water pump, a cooling water valve, a charging indicator light, an electric air inlet grille, a brake pedal sensor, an accelerator pedal sensor, a temperature sensor, a charging gun identification interface, a cooling fan, a heater and a compressor;
the motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires;
the power domain controller is used for realizing the whole vehicle running control function and the energy management function;
the motor controller drives the motor to work according to a first control instruction sent by the power domain controller;
the high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay;
the power driving board is used for driving the voltage conversion and charging related circuit to be switched on or switched off according to a third control instruction sent by the power domain controller.
Further, the system further comprises: the system comprises a vehicle body stabilizing unit, a steering power-assisted unit, an airbag control unit, an electronic gear shifter, a gateway and other vehicle control units;
the vehicle body stabilizing unit, the steering power-assisted unit, the airbag control and electronic gear shifter are all connected with the power domain controller through CAN lines;
the gateway is connected with the power domain controller through the Ethernet, and other vehicle control units are connected with the gateway through the Ethernet, so that signal transmission with the power domain controller is realized.
Further, the driving control functions include driving mode control, torque control and gear control functions; the energy management functions include low voltage power management, high voltage power management, battery energy management, charge management, and thermal management functions.
Further, the driving mode control function is realized in the following manner: and inputting a driving mode selection signal into the power domain controller and outputting a driving mode state signal.
Further, the torque control function is realized by: and the position signal of an accelerator pedal sensor, the position signal of a brake pedal sensor, the gear request signal of an electronic gear shifter, a vehicle speed signal, an acceleration signal, a yaw velocity signal, an EPS signal of a steering power-assisted system, an ESC torque intervention signal of a vehicle body stabilizing system, an automatic driving system signal, a radar signal, a camera signal, the actual torque and the maximum torque signal of a motor are input into the power domain controller, and the torque request signal of the motor is output.
Further, the gear control function is realized in the following manner:
and inputting a gear request signal, a brake pedal signal and an unlocking key state signal into the power domain controller, and outputting a gear control signal and a gear display signal.
Further, the implementation manner of the low-voltage power management function is as follows: and at least one of a network management message signal, a charging gun identification signal, a charging pile communication signal and a key door signal is input into the power domain controller, so that switching between an awakening state and a dormant state is realized.
Further, the implementation process of the high-voltage power management function is as follows: and a key door signal, a gear signal, a charging gun identification signal, a brake pedal signal, an anti-theft check result signal, a motor state signal, a battery state signal, a high-voltage system state signal, a voltage signal, a collision signal and a high-voltage relay state signal are input into the power domain controller, and a control instruction of each high-voltage relay and a power system preparation signal or a power system fault signal are output.
Further, the implementation manner of the battery energy management function is as follows: and inputting voltage signals, temperature signals and vehicle power-off sleep time signals of all the daughter boards into the power domain controller, and outputting power battery residual capacity signals and allowable power signals.
Further, the implementation process of the charging management function is as follows: the method comprises the following steps that a charging gun identification signal, a power battery residual electric quantity signal, a target charging electric quantity signal, a high-voltage relay state signal, a high-voltage system state signal, a charging port temperature signal, a power battery voltage signal, a charging current signal and a charging voltage signal are input into a power domain controller, and a charging current control signal, a charging voltage control signal, a charging heating control signal, a charging indicator lamp control signal, a charging starting signal and a relay control signal are output;
the realization process of the thermal management function is as follows: and inputting a power battery temperature signal, a motor temperature signal, a cooling water channel temperature signal and a cooling system allowable power signal into the power domain controller, and outputting a water pump control signal, a water valve control signal, a fan control signal, an air inlet grille control signal, a heater control signal and a compressor control signal.
The embodiment of the invention discloses an electric automobile control system, which comprises: the power domain controller, the motor controller, high pressure drive plate, power drive plate and additional device. The additional device includes: the system comprises a cooling water pump, a cooling water valve, a charging indicator light, an electric air inlet grille, a brake pedal sensor, an accelerator pedal sensor, a temperature sensor, a charging gun identification interface, a cooling fan, a heater and a compressor. The motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the driving cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires; the power domain controller is used for realizing the whole vehicle running control function and the energy management function; the motor controller drives the motor to work according to a first control instruction sent by the power domain controller; the high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay; the power driving board is used for driving the voltage conversion and charging related circuit to be switched on or switched off according to a third control instruction sent by the power domain controller. The structure of the control system of the electric automobile can be optimized, and the control process is simplified.
Drawings
Fig. 1 is a schematic structural diagram of an electric vehicle control system according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a power domain controller according to a first embodiment of the present invention;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of an electric vehicle control system according to a first embodiment of the present invention, and as shown in fig. 1, the system includes: the power domain controller, the motor controller, high pressure drive plate, power drive plate and additional device.
Wherein the additional device comprises: the system comprises a cooling water pump, a cooling water valve, a charging indicator light, an electric air inlet grille, a brake pedal sensor, an accelerator pedal sensor, a temperature sensor, a charging gun identification interface, a cooling fan, a heater and a compressor.
The motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; and the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires.
The power domain controller is used for realizing the whole vehicle running control function and the energy management function. And the motor controller drives the motor to work according to a first control instruction sent by the power domain controller. The high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay. The power driving board is used for driving the voltage conversion and charging related circuit to be switched on or switched off according to a third control instruction sent by the power domain controller.
Specifically, the motor controller MCU receives a first control instruction of the power domain controller to realize a motor driving function. And the high-voltage drive board receives a second control instruction of the power domain controller, drives the high-voltage relay, and transmits the acquired voltage and temperature data of the battery pack to the power domain controller, so that a battery information acquisition drive function is realized. And the power driving board receives a third control instruction of the power domain controller, and drives the voltage conversion and charging related circuits to be switched on and off, so that the driving function of the high-voltage circuit is realized.
Optionally, as shown in fig. 1, the system further includes: the device comprises a vehicle body stabilizing unit, a steering power assisting unit, an airbag control unit, an electronic gear shifter, a gateway and other vehicle control units. The vehicle body stabilizing unit, the steering power-assisted unit, the safety air bag control unit and the electronic gear shifter are all connected with the power domain controller through CAN lines; the gateway is connected with the power domain controller through the Ethernet, and other vehicle control units are connected with the gateway through the Ethernet, so that signal transmission with the power domain controller is realized.
Fig. 2 is a schematic diagram of the operation of the power domain controller in an embodiment of the invention. As shown in fig. 2, the travel control functions include driving mode control, torque control, and gear control functions; the energy management functions include low voltage power management, high voltage power management, battery energy management, charge management, and thermal management functions.
The driving mode control function means that a driver selects a driving mode through an operation knob, the central control instrument controller sends a driver selection result signal to the gateway controller, the gateway controller routes the information to the power domain controller, the power domain realizes driving mode switching, the switching result is fed back to the central control instrument, and the instrument displays and informs the driver. The input signal of the driving mode control function is a driving mode selection signal, and the output signal is a driving mode state signal.
The torque control function refers to that a power domain controller comprehensively analyzes and processes the information according to the accelerator pedal and brake pedal states, the driving system allowable power, the current gear state fed back by an electronic gear shifter EGSM, the steering system state fed back by a steering power-assisted system EPS and the chassis system state fed back by a vehicle body stabilization system ESC, the self-adaptive cruise system opening and closing state and torque request, the automatic driving system opening and closing state and torque request and other auxiliary driving system opening and closing states and motor actual torque and allowable torque, calculates the motor output torque, and drives the motor to execute the torque request by a motor controller to realize the driving intention of a driver. The torque control function input signals comprise an accelerator pedal sensor position signal, a brake pedal sensor position signal, an electronic gear shifter gear request signal, a vehicle speed signal, an acceleration signal, a yaw velocity signal, a steering power-assisted system EPS signal, a vehicle body stabilizing system ESC torque intervention signal, an automatic driving system signal, a radar signal, a camera signal, a motor actual torque and a motor maximum torque signal, and the output signals are motor torque demand signals.
The gear control function means that the power domain controller feeds back gear position signals according to the electronic gear shifter EGSM, recognizes the gear shifting intention of a driver, sends target gear signals to the motor controller MCU, and the motor controller MCU realizes gear switching. Meanwhile, the gear state information is sent to the gateway, and the gateway forwards the gear state information to the central control instrument to inform a driver of the current gear information of the whole vehicle. The input signals of the gear control function comprise gear request signals, brake pedal signals and unlocking key state signals, and the output signals comprise gear control signals and gear display signals.
The low-voltage power management function means that the power domain controller receives a wake-up source signal, enters a wake-up state from a sleep state and simultaneously wakes up other controllers in the power domain; and entering a dormant state together with a controller in the power domain from an awakening state according to the operation requirement of a driver and the state information of the whole vehicle. The low-voltage power supply management function related signals comprise network management message signals, charging gun identification signals, charging pile communication signals and key door signals.
The high-voltage power supply management function means that the power domain controller identifies the operation intention of a driver, the state information of a high-voltage system and the state information of the whole vehicle, sends out opening and closing control instructions of a high-voltage relay, drives a corresponding relay by a high-voltage drive plate, controls the high-voltage system to complete power on and power off, and forwards a power on result signal to a central control instrument by a gateway to inform the driver that the power system of the vehicle enters a ready state or a fault state. The high-voltage power supply management function input signals comprise a key door signal, a gear signal, a charging gun identification signal, a brake pedal signal, an anti-theft check result signal, a motor state signal, a battery state signal, a high-voltage system state signal, a voltage signal, a collision signal and a high-voltage relay state signal, and the output signals are a control command of each high-voltage relay, a Ready signal of a power system and a fault signal of the power system.
The battery energy management function means that the power domain controller receives the voltage and temperature information of the battery daughter board collected by the high-voltage driving board and calculates the allowable power and the residual energy of the high-voltage battery by combining the power-off dormancy time of the vehicle. The battery management function input signals comprise voltage signals of all the daughter boards, temperature signals and vehicle power-off sleep time signals, and the output signals comprise residual electric quantity signals and allowable power signals of the power battery.
The charging management function means that the power domain controller identifies a charging gun through a hardware interface, sends a charging request by combining with the charging setting of a driver, the power battery state information acquired by the high-voltage drive board and the information obtained by interaction with the charging pile, controls the on and off of a related relay, monitors the charging process, controls the work of a charging indicator lamp, displays the working state of a charging system and realizes the charging intention of the driver. The charging management function input signals comprise a charging gun identification signal, a power battery residual capacity signal, a target charging capacity signal, a high-voltage relay state signal, a high-voltage system state signal, a charging port temperature signal, a power battery voltage signal, a charging current signal and a charging voltage signal. The output signals comprise a charging current control signal, a charging voltage control signal, a charging heating control signal, a charging indicator light control signal, a charging starting signal and a relay control signal.
The heat management function means that the power domain controller controls and drives a water pump, a water valve, a fan, an air inlet grille, a heater and a compressor to work by receiving a temperature signal of a power battery cooling system, acquiring a temperature signal of a motor cooling system and a temperature signal of a passenger cabin and according to the operation requirement of a driver, so that the functions of battery heating, battery cooling, motor cooling and temperature control of the passenger cabin are realized. The heat management function input signals comprise power battery temperature signals, motor temperature signals, cooling water channel temperature signals and cooling system allowable power signals, and the output signals comprise water pump control signals, water valve control signals, fan control signals, air inlet grille control signals, heater control signals and compressor control signals.
The embodiment of the invention discloses an electric automobile control system, which comprises: the power domain controller, the motor controller, high pressure drive plate, power drive plate and additional device. The additional device includes: the system comprises a cooling water pump, a cooling water valve, a charging indicator light, an electric air inlet grille, a brake pedal sensor, an accelerator pedal sensor, a temperature sensor, a charging gun identification interface, a cooling fan, a heater and a compressor. The motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the driving cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires; the power domain controller is used for realizing the whole vehicle running control function and the energy management function; the motor controller drives the motor to work according to a first control instruction sent by the power domain controller; the high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay; the power driving board is used for driving the voltage conversion and charging related circuit to be switched on or switched off according to a third control instruction sent by the power domain controller. The structure of the control system of the electric automobile can be optimized, and the control process is simplified.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention 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 invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An electric vehicle control system, comprising: the power domain controller, the motor controller, the high-voltage drive board, the power drive board and the additional device;
the additional device includes: the system comprises a cooling water pump, a cooling water valve, a charging indicator light, an electric air inlet grille, a brake pedal sensor, an accelerator pedal sensor, a temperature sensor, a charging gun identification interface, a cooling fan, a heater and a compressor;
the motor controller, the high-voltage driving board and the power driving board are all connected with the power domain controller through CAN lines; the cooling water pump, the cooling water valve, the charging indicator light, the electric air inlet grille, the heater and the compressor are all connected with the power domain controller through LIN lines; the brake pedal sensor, the accelerator pedal sensor, the temperature sensor, the charging gun identification interface and the cooling fan are all connected with the power domain controller through hard wires;
the power domain controller is used for realizing the whole vehicle running control function and the energy management function;
the motor controller drives the motor to work according to a first control instruction sent by the power domain controller;
the high-voltage drive board is used for acquiring battery information according to a second control instruction sent by the power domain controller and driving the high-voltage relay;
the power driving board is used for driving the voltage conversion and charging related circuit to be switched on or switched off according to a third control instruction sent by the power domain controller.
2. The system of claim 1, further comprising: the system comprises a vehicle body stabilizing unit, a steering power-assisted unit, an airbag control unit, an electronic gear shifter, a gateway and other vehicle control units;
the vehicle body stabilizing unit, the steering power-assisted unit, the safety air bag control unit and the electronic gear shifter are all connected with the power domain controller through CAN lines;
the gateway is connected with the power domain controller through the Ethernet, and other vehicle control units are connected with the gateway through the Ethernet, so that signal transmission with the power domain controller is realized.
3. The system of claim 1, wherein the travel control functions include drive mode control, torque control, and gear control functions; the energy management functions include low voltage power management, high voltage power management, battery energy management, charge management, and thermal management functions.
4. The system of claim 3, wherein the driving mode control function is implemented by: and inputting a driving mode selection signal into the power domain controller and outputting a driving mode state signal.
5. The system of claim 3, wherein the torque control function is implemented by: and the position signal of an accelerator pedal sensor, the position signal of a brake pedal sensor, the gear request signal of an electronic gear shifter, a vehicle speed signal, an acceleration signal, a yaw velocity signal, an EPS signal of a steering power-assisted system, an ESC torque intervention signal of a vehicle body stabilizing system, an automatic driving system signal, a radar signal, a camera signal, the actual torque and the maximum torque signal of a motor are input into the power domain controller, and the torque request signal of the motor is output.
6. The system of claim 3, wherein the gear control function is implemented by:
and inputting a gear request signal, a brake pedal signal and an unlocking key state signal into the power domain controller, and outputting a gear control signal and a gear display signal.
7. The system of claim 3, wherein the low voltage power management function is implemented by: and at least one of a network management message signal, a charging gun identification signal, a charging pile communication signal and a key door signal is input into the power domain controller, so that switching between an awakening state and a dormant state is realized.
8. The system of claim 3, wherein the high voltage power management function is implemented by: and a key door signal, a gear signal, a charging gun identification signal, a brake pedal signal, an anti-theft check result signal, a motor state signal, a battery state signal, a high-voltage system state signal, a voltage signal, a collision signal and a high-voltage relay state signal are input into the power domain controller, and a control instruction of each high-voltage relay and a power system preparation signal or a power system fault signal are output.
9. The system of claim 3, wherein the battery energy management function is implemented by: and inputting voltage signals, temperature signals and vehicle power-off sleep time signals of all the daughter boards into the power domain controller, and outputting power battery residual capacity signals and allowable power signals.
10. The system of claim 3, wherein the charge management function is implemented by: the method comprises the following steps that a charging gun identification signal, a power battery residual electric quantity signal, a target charging electric quantity signal, a high-voltage relay state signal, a high-voltage system state signal, a charging port temperature signal, a power battery voltage signal, a charging current signal and a charging voltage signal are input into a power domain controller, and a charging current control signal, a charging voltage control signal, a charging heating control signal, a charging indicator lamp control signal, a charging starting signal and a relay control signal are output;
the realization process of the thermal management function is as follows: and inputting a power battery temperature signal, a motor temperature signal, a cooling water channel temperature signal and a cooling system allowable power signal into the power domain controller, and outputting a water pump control signal, a water valve control signal, a fan control signal, an air inlet grille control signal, a heater control signal and a compressor control signal.
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| CN202011583481.5A CN112644293A (en) | 2020-12-28 | 2020-12-28 | Electric automobile control system |
| PCT/CN2021/140778 WO2022143392A1 (en) | 2020-12-28 | 2021-12-23 | Control system of electric vehicle |
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| CN116545247A (en) * | 2023-05-08 | 2023-08-04 | 浙江伊控动力系统有限公司 | Powering-on and powering-off method of xEV function integrated motor controller with timing wake-up function |
| CN117261923A (en) * | 2023-10-11 | 2023-12-22 | 浙江伊控动力系统有限公司 | Integrated power domain controller for power assembly and automatic driving |
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| CN115079618A (en) * | 2022-07-27 | 2022-09-20 | 福思(杭州)智能科技有限公司 | Domain controller control method and apparatus, storage medium, and electronic apparatus |
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| WO2022143392A1 (en) | 2022-07-07 |
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