CN216942666U

CN216942666U - Vehicle control unit and vehicle

Info

Publication number: CN216942666U
Application number: CN202220054059.9U
Authority: CN
Inventors: 顾一新; 肖恺
Original assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Current assignee: Guangdong Zhengyang Sensor Technology Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-07-12
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a vehicle control unit and a vehicle. The vehicle control unit is used for integrated thermal management of a vehicle, and the vehicle comprises a cooling water path, a vehicle heat-generating component and a vehicle heat-radiating component; the vehicle control unit comprises an acquisition module, a main control module, a communication module and a driving module; the acquisition module is used for acquiring water temperature information of a water outlet of the vehicle cooling waterway; the communication module is used for communicating with the vehicle heat-generating component to acquire the temperature information of the vehicle heat-generating component; the input end of the main control module is electrically connected with the acquisition module and the communication module and is used for outputting a driving control signal according to the water temperature information and/or the temperature information; the output end of the main control module is electrically connected with the driving module, and the driving module is used for controlling the working state of the vehicle heat dissipation component according to the driving control signal. By adopting the scheme, the heat management function is integrated into the whole vehicle controller, the vehicle cost is reduced, and the system is convenient to upgrade and maintain.

Description

Vehicle control unit and vehicle

Technical Field

The embodiment of the utility model relates to the automobile thermal management technology, in particular to a vehicle control unit and a vehicle.

Background

In recent years, the automobile industry of all countries in the world faces two major challenges of energy safety and environmental protection. Therefore, governments of various countries in the world make corresponding countermeasures, and a new generation of clean energy-saving automobiles is vigorously developed. Since the last 90 s, various automobile companies in the world begin to invest in the research and development of new energy automobiles.

Compared with the traditional energy automobile, the new energy automobile is additionally provided with components such as a power battery, a motor, a DCDC (direct current), a vehicle-mounted charger and the like, and the components have proper working temperature ranges and cannot normally work under the condition of overheating or overcooling. Therefore, a very important task of the new energy automobile is to develop a thermal management system thereof, and it is required to enable each power system component to work in the most appropriate required working temperature range through the thermal management system, so as to ensure the normal and reliable running function of the vehicle.

At present, the thermal management of a power system is independently used as a system on a new energy automobile, a thermal management controller is needed to realize the thermal management function, and the batteries, the motors, the DCDC, a vehicle-mounted charger and the like are ensured to work within the required working temperature range. The working temperature ranges required by the battery, the motor, the DCDC and the vehicle-mounted charger are different, for example, the most suitable working temperature range of the existing lithium ion battery is 20-40 ℃, and the battery capacity is reduced and even the risk of explosion is caused when the temperature is too high or too low. The suitable working temperature range of the motor, the DCDC and the vehicle-mounted charger is generally 20-80 ℃. Therefore, different power system components require different temperature ranges and separate cooling water circuits, which complicates the thermal management system of the new energy automobile and requires a separate thermal management controller to realize the functions of the thermal management controller. The current thermal management system uses an independent controller to realize functions, so that the number of controllers on the whole vehicle is too large, and the control functions are too dispersed, so that the cost is higher, and the updating and upgrading are difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle controller and a vehicle, which are used for integrating a heat management function into the vehicle controller, reducing the vehicle cost and facilitating system upgrading and maintenance.

In a first aspect, an embodiment of the present invention provides a vehicle controller for integrated thermal management of a vehicle, where the vehicle includes a cooling water path, a vehicle heat-generating component, and a vehicle heat-dissipating component; the vehicle control unit comprises an acquisition module, a main control module, a communication module and a driving module;

the acquisition module is used for acquiring water temperature information of a water outlet of the vehicle cooling water channel;

the communication module is used for communicating with the vehicle heat-generating component to acquire the temperature information of the vehicle heat-generating component;

the input end of the main control module is electrically connected with the acquisition module and the communication module and is used for outputting a driving control signal according to the water temperature information and/or the temperature information;

the output end of the main control module is electrically connected with the driving module, and the driving module is used for controlling the working state of the vehicle heat dissipation component according to the driving control signal.

In an optional embodiment of the utility model, the acquisition module comprises an analog input acquisition submodule, and the analog input acquisition submodule is used for acquiring water temperature information of a water outlet of a vehicle cooling water channel;

the driving control signals comprise a first cooling driving control signal and a first heating driving control signal, the main control module is used for comparing water temperature information with preset working water temperature information, outputting the first cooling driving control signal when the water temperature information is higher than the preset working water temperature information, and outputting the first heating driving control signal when the water temperature information is lower than the preset working water temperature information;

the driving module is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the first cooling driving control signal and controlling the vehicle heat dissipation part to reduce heat dissipation according to the first heating driving control signal.

In an optional embodiment of the utility model, the vehicle comprises a water temperature sensor, and the water temperature information acquisition end of the analog input acquisition submodule is electrically connected with the water temperature sensor so as to acquire the water temperature information of the water outlet of the cooling waterway, which is detected by the water temperature sensor.

In an alternative embodiment of the utility model, the vehicle heat generating component comprises at least one of a motor management system, a DCDC converter and an on-board charger;

the temperature information comprises first temperature information, and the communication module is in communication connection with at least one of the motor management system, the DCDC converter and the vehicle-mounted charger through a bus so as to acquire the first temperature information of at least one of the motor management system, the DCDC converter and the vehicle-mounted charger;

the main control module is used for comparing the first temperature information with preset first working temperature information, outputting a first cooling driving control signal when the first temperature information is higher than the preset first working temperature information, and outputting a first heating driving control signal when the first temperature information is lower than the preset first working temperature information; the driving module is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the first cooling driving control signal and controlling the vehicle heat dissipation part to reduce heat dissipation according to the first heating driving control signal.

In an alternative embodiment of the present invention, the vehicle heat radiating parts include a cooling fan and a cooling water pump;

the driving end of the driving module is electrically connected with the cooling fan and/or the cooling water pump, and the driving module is used for controlling the cooling fan to be started and/or the rotating speed of the cooling water pump to be increased according to the first temperature reduction driving control signal, and controlling the cooling fan to be stopped and/or the rotating speed of the cooling water pump to be decreased according to the first temperature rise driving control signal.

In an alternative embodiment of the utility model, the vehicle includes a PTC heater, the vehicle heat-generating component includes a battery management system;

the temperature information comprises second temperature information, the communication module is in communication connection with the battery management system through a bus so as to acquire the second temperature information of the battery management system, and the second temperature information comprises highest temperature information and lowest temperature information;

the main control module is used for comparing second temperature information with preset second working temperature information, outputting a second cooling driving control signal when the highest temperature information is higher than the preset second working temperature information, and outputting a second heating driving control signal when the lowest temperature information is lower than the preset second working temperature information;

the driving module is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the second cooling driving control signal;

the communication module is also in communication connection with the PTC heater through a bus, and the communication module is used for controlling the PTC heater to be started according to the second heating drive control signal.

In an alternative embodiment of the present invention, the vehicle heat radiating part includes a cooling waterway solenoid valve;

the driving end of the driving module is electrically connected with the cooling water path electromagnetic valve so as to control the cooling water path electromagnetic valve to be opened according to a second cooling driving control signal to drive an air-conditioning refrigerant to dissipate heat of the battery management system.

In an alternative embodiment of the utility model, the communication module comprises a LIN communication sub-module, which is in communication connection with the PTC heater through a LIN bus.

In an alternative embodiment of the present invention, the vehicle heat radiating part includes at least one of a cooling fan, a cooling water solenoid valve and a cooling water pump, and accordingly, the driving module includes at least one of:

the low-side driving sub-module comprises a cooling fan driving end, and the cooling fan driving end is electrically connected with the cooling fan and used for controlling the working state of the cooling fan;

the high-side driving submodule comprises a cooling water path electromagnetic valve driving end, and the cooling water path electromagnetic valve driving end is electrically connected with the cooling water path electromagnetic valve and used for controlling the working state of the cooling water path electromagnetic valve;

and the motor driving submodule comprises a water pump driving end, and the water pump driving end is electrically connected with the cooling water pump and is used for controlling the working state of the cooling water pump.

In an optional embodiment of the utility model, the communication module comprises a CAN communication sub-module, and the CAN communication sub-module is in communication connection with the vehicle heat-generating component through a CAN bus.

In an optional embodiment of the present invention, the acquisition module includes a digital input acquisition submodule, and the digital input acquisition submodule is configured to acquire a state of the shift switch;

the communication module is also used for acquiring vehicle speed information;

and the main control module is used for determining an execution gear according to the vehicle speed information and the gear switch state.

In an optional embodiment of the utility model, the vehicle comprises a gear switch, and a gear switch state acquisition end of the digital input acquisition submodule is electrically connected with the gear switch so as to acquire a gear switch state;

and/or the vehicle comprises an ABS controller, and the communication module is in communication connection with the ABS controller through a bus so as to acquire vehicle speed information.

In an alternative embodiment of the utility model, the vehicle heat-producing component includes a motor management system, the analog input acquisition sub-module is further configured to acquire a throttle position signal;

the communication module is also used for acquiring vehicle speed information and charge and discharge capacity information of the battery;

the main control module is used for determining a vehicle torque demand according to an accelerator position signal and vehicle speed information, and determining an output torque range according to charge-discharge capacity information of the battery and the vehicle speed information; further limiting the vehicle torque request based on the output torque range to determine an execution torque;

the communication module is also in communication connection with the motor management system through a bus so that the motor management system controls the motor to execute the execution torque.

In an alternative embodiment of the utility model, the vehicle further comprises an accelerator pedal;

the accelerator position acquisition end of the analog input acquisition submodule is electrically connected with the accelerator pedal so as to acquire an accelerator position signal;

and/or the vehicle heat-generating component comprises a battery management system, and the communication module is in communication connection with the battery management system through a bus so as to acquire the charge and discharge capacity information of the battery.

In a second aspect, the present invention provides a vehicle including a cooling water circuit, a vehicle heat-generating component, and a vehicle heat-radiating component, and a vehicle control unit according to any one of the embodiments of the present invention.

According to the scheme, the vehicle control unit comprises an acquisition module, a main control module, a communication module and a driving module, wherein the acquisition module can acquire water temperature information of a water outlet of a vehicle cooling water path, and the communication module can communicate with a vehicle heat production part to acquire the temperature information of the vehicle heat production part; the input end of the main control module is electrically connected with the acquisition module and the communication module, and then the main control module can output a driving control signal according to the water temperature information and/or the temperature information. The output end of the main control module is electrically connected with the driving module, and finally the driving module can control the working state of the vehicle heat dissipation part according to the driving control signal, so that the temperature of each part can be controlled, each part can work at a proper working temperature, and heat management is realized. According to the scheme, the function of heat management is integrated into the whole vehicle controller, and two or more original controllers are combined, so that the whole vehicle cost is reduced, and the software is more conveniently updated and upgraded. Therefore, the heat management function is integrated into the whole vehicle controller, the vehicle cost is reduced, and the system is convenient to upgrade and maintain.

Drawings

Fig. 1 is a block diagram of a vehicle control unit according to a first embodiment of the present invention;

fig. 2 is a block diagram of a vehicle control unit according to a second embodiment of the present invention;

fig. 3 is a structural block diagram of a vehicle to which the vehicle control unit according to the second embodiment of the present invention is applied.

Wherein, 1, a battery management system; 2. a motor management system; 3. a DCDC converter; 4. a vehicle-mounted charger; 5. a cooling fan; 6. a cooling water path solenoid valve; 7. a cooling water pump; 8. a water temperature sensor; 9. an acquisition module; 91. an analog input acquisition submodule; 92. a digital input acquisition submodule; 10. a main control module; 11. a communication module; 111. LIN communication submodule; 112. a CAN communication submodule; 12. a drive module; 121. a low-side drive sub-module; 122. a high-side drive submodule; 123. a motor drive submodule; 13. a PTC heater; 14. a gear switch; 15. an ABS controller; 16. an accelerator pedal.

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 utility model and are not limiting of the utility model. 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 block diagram of a vehicle controller according to an embodiment of the present invention, where the vehicle controller is used for integrated thermal management of a vehicle, and the vehicle includes a cooling water path, a vehicle heat generating component, and a vehicle heat dissipating component; as shown in fig. 1, the vehicle control unit includes an acquisition module 9, a main control module 10, a communication module 11 and a driving module 12.

The acquisition module 9 is used for acquiring water temperature information of a water outlet of the vehicle cooling water channel.

The communication module 11 is used for communicating with the vehicle heat-generating component to obtain the temperature information of the vehicle heat-generating component;

the input end of the main control module 10 is electrically connected with the acquisition module 9 and the communication module 11, and is used for outputting a driving control signal according to the water temperature information and/or the temperature information.

The output end of the main control module 10 is electrically connected to the driving module 12, and the driving module 12 is configured to control the working state of the vehicle heat dissipation component according to the driving control signal.

The vehicle heat-generating component is a component that generates heat when the vehicle is started. The vehicle heat dissipation member means a member for dissipating heat generated by a vehicle. The cooling water circuit is a water circuit circulation which exchanges heat of all parts and brings the heat to the outside for emission.

The water temperature information is information reflecting the temperature of a water outlet of the vehicle cooling water channel, and the acquisition module 9 is a module capable of acquiring the water temperature information of the water outlet of the vehicle cooling water channel.

The temperature information is information reflecting the temperature conditions of the respective heat-generating components of the vehicle, and the communication module is a module capable of performing data communication with the heat-generating components of the vehicle.

The main control module 10 is electrically connected with the acquisition module 9 and the communication module 11 through the input end, and can receive water temperature information and temperature information, so that the temperature conditions of all parts of the vehicle can be known, and heat management is realized.

The drive module 12 is a member capable of controlling the operation state of a heat radiating member of the vehicle.

According to the scheme, the vehicle control unit comprises the acquisition module 9, the main control module 10, the communication module 11 and the driving module 12, the acquisition module 9 can acquire water temperature information of a water outlet of a vehicle cooling water channel, and the communication module 11 can communicate with a vehicle heat-generating component to acquire the temperature information of the vehicle heat-generating component; the input end of the main control module 10 is electrically connected with the acquisition module 9 and the communication module 11, and then the main control module 10 can output a driving control signal according to the water temperature information and/or the temperature information. Because the output end of the main control module 10 is electrically connected with the driving module 12, the driving module 12 can control the working state of the vehicle heat dissipation component according to the driving control signal, and further can control the temperature of each component, so that each component can work at a proper working temperature, and the heat management is realized. According to the scheme, the function of heat management is integrated into the whole vehicle controller, and two or more original controllers are combined, so that the whole vehicle cost is reduced, and the software is more conveniently updated and upgraded. Therefore, the heat management function is integrated into the whole vehicle controller, the vehicle cost is reduced, and the system is convenient to upgrade and maintain.

Example two

Fig. 2 is a block diagram of a vehicle control unit according to a second embodiment of the present invention; fig. 3 is a structural block diagram of a vehicle to which a vehicle control unit according to a second embodiment of the present invention is applied. As shown in fig. 2, the acquisition module 9 includes an analog input acquisition submodule 91, where the analog input acquisition submodule 91 is configured to acquire water temperature information of a water outlet of the vehicle cooling water channel.

The driving control signals include a first cooling driving control signal and a first warming driving control signal, and the main control module 10 is configured to compare the water temperature information with the preset working water temperature information, output the first cooling driving control signal when the water temperature information is higher than the preset working water temperature information, and output the first warming driving control signal when the water temperature information is lower than the preset working water temperature information.

The driving module 12 is used for controlling the vehicle heat dissipation component to accelerate heat dissipation according to the first cooling driving control signal, and controlling the vehicle heat dissipation component to reduce heat dissipation according to the first heating driving control signal.

The analog input acquisition submodule 91 is a module for acquiring analog signals, and since the water temperature information of the water outlet of the vehicle cooling water channel is generally analog information, the water temperature information can be conveniently acquired by setting the analog input acquisition submodule 91.

The preset working water temperature information refers to the water temperature at the water outlet of the cooling water channel when all the components are within the proper working temperature range, and the preset working water temperature information can be stored in the main control module 10 in advance. The main control module 10 controls the vehicle heat dissipation part to accelerate heat dissipation according to the first cooling drive control signal through comparing the water temperature information with the preset working water temperature information, and when the water temperature information is higher than the preset working water temperature information, the drive module 12 can effectively reduce the temperature so that each part can work within a proper working temperature range. When the water temperature information is lower than the preset working water temperature information, the driving module 12 controls the heat dissipation part of the vehicle to reduce heat dissipation according to the first heating driving control signal, so that the heat dissipation is reduced, the temperature can be increased, and all parts can work within a proper working temperature range.

In an alternative embodiment of the present invention, as shown in fig. 3, the vehicle includes a water temperature sensor 8, and the water temperature information collecting end of the analog input collecting submodule 91 is electrically connected to the water temperature sensor 8 to collect the water temperature information of the water outlet of the cooling water path detected by the water temperature sensor 8.

Wherein, the water temperature sensor 8 is used for measuring the water temperature of the water outlet of the cooling water path. Therefore, the water temperature information collecting end of the analog input collecting submodule 91 is electrically connected to the water temperature sensor 8, so that the analog input collecting submodule 91 can collect the water temperature information of the water outlet of the cooling water channel detected by the water temperature sensor 8.

In an alternative embodiment of the utility model, the vehicle heat generating means comprises at least one of a motor management system 2, a DCDC converter 3 and an on-board charger 4.

The temperature information comprises first temperature information, and the communication module 11 is in communication connection with at least one of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 through a bus so as to acquire the first temperature information of at least one of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4.

The main control module 10 is configured to compare the first temperature information with preset first operating temperature information, and output a first cooling driving control signal when the first temperature information is higher than the preset first operating temperature information, and output a first heating driving control signal when the first temperature information is lower than the preset first operating temperature information; the driving module 12 is used for controlling the vehicle heat dissipation component to accelerate heat dissipation according to the first cooling driving control signal, and controlling the vehicle heat dissipation component to reduce heat dissipation according to the first heating driving control signal.

The motor management system 2 is a system for managing a motor, and the motor is a component for supplying energy for starting and running of the vehicle. The DCDC converter 3 has the function of converting the high voltage of the power battery pack into constant 12V or 14V or 24V low voltage, not only can supply power for the electric appliances of the whole vehicle, but also can charge the auxiliary storage battery, and the functions of the DCDC converter 3 on the pure electric vehicle are equivalent to the functions of a generator and a regulator on the traditional fuel vehicle. The vehicle-mounted charger 4 is a charger fixedly mounted on the electric vehicle, has the capability of safely and automatically charging the power battery of the electric vehicle, and can dynamically adjust charging current or voltage parameters according to data provided by the battery management system 1(BMS), execute corresponding actions and complete the charging process.

A Bus (Bus) is a common communications backbone that carries information between various functional elements of a computer. The communication module 11 is a module that can communicate with at least one of the motor management system 2, the DCDC converter 3, and the vehicle-mounted charger 4 via a bus.

The motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 all generate heat when the vehicle runs, therefore, the first temperature information refers to information reflecting the operating temperature of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 when the vehicle is running, the communication module 11 is used for acquiring first temperature information of at least one of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4, when the first temperature information is higher than preset first working temperature information, the working temperature of at least one of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 is overhigh, the main control module 10 outputs a first cooling driving control signal, the driving module 12 controls the vehicle heat dissipation component to accelerate heat dissipation according to the first cooling driving control signal, therefore, the temperature can be effectively reduced, and the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 can work within a proper working temperature range. When the first temperature information is lower than the preset first working temperature information, it is indicated that at this time, at least one working temperature of the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 is too low, at this time, the main control module 10 outputs a first temperature-rise driving control signal, and the driving module 12 controls the vehicle heat dissipation component to reduce heat dissipation according to the first temperature-rise driving control signal, so that the heat dissipation is reduced, the temperature can be increased, and the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 all work within a proper working temperature range.

On the basis of the above embodiment, the vehicle heat radiating parts include the cooling fan 5 and the cooling water pump 7.

The driving end of the driving module 12 is electrically connected with the cooling fan 5 and/or the cooling water pump 7, and the driving module 12 is used for controlling the cooling fan 5 to be turned on and/or the rotating speed of the cooling water pump 7 to be increased according to the first cooling driving control signal and controlling the cooling fan 5 to be turned off and/or the rotating speed of the cooling water pump 7 to be decreased according to the first heating driving control signal.

The cooling fan 5 can perform a heat dissipation function when being started, and the cooling water pump 7 is a component for supplying water to a component needing cooling water, so that the cooling water pump 7 can perform an effect of accelerating heat dissipation when the rotating speed is increased. When the cooling fan 5 is started and/or the rotating speed of the cooling water pump 7 is increased, the heat exchange efficiency of the cooling liquid can be effectively improved, the heat dissipation is accelerated, and therefore the temperature can be effectively reduced; when the cooling fan 5 is turned off and/or the rotational speed of the cooling water pump 7 is reduced, the heat dissipation can be reduced, and thus the temperature can be increased, so that the components can operate within a suitable operating temperature range.

In an alternative embodiment of the utility model, the vehicle comprises a PTC heater 13 and the vehicle heat generating component comprises the battery management system 1.

The temperature information comprises second temperature information, the communication module 11 is in communication connection with the battery management system 1 through a bus to collect the second temperature information of the battery management system 1, and the second temperature information comprises highest temperature information and lowest temperature information.

The main control module 10 is configured to compare the second temperature information with the preset second operating temperature information, and output a second cooling driving control signal when the highest temperature information is higher than the preset second operating temperature information, and output a second heating driving control signal when the lowest temperature information is lower than the preset second operating temperature information.

The driving module 12 is used for controlling the vehicle heat dissipation component to accelerate heat dissipation according to the second cooling driving control signal.

The communication module 11 is also in communication connection with the PTC heater 13 through a bus, and the communication module 11 is configured to control the PTC heater 13 to be turned on according to the second temperature rise driving control signal.

Here, the battery management system 1 refers to a system that manages a battery of a vehicle. The PTC heater 13 can heat the coolant, and the coolant flows into the battery management system 1 to provide a heat source, so that the temperature of the battery management system can be increased when the PTC heater 13 is turned on. The second temperature information refers to the highest temperature and the lowest temperature when the battery management system 1 operates, and corresponds to the highest temperature information and the lowest temperature information, the preset second working temperature information refers to the appropriate working temperature of the battery management system 1, and the preset second working temperature information can be prestored in the main control module 10 in advance.

The main control module 10 compares the second temperature information with the preset second working temperature information, outputs a second cooling drive control signal when the highest temperature information is higher than the preset second working temperature information, which indicates that the temperature of the battery management system 1 is too high at this time, and controls the heat dissipation component of the vehicle to accelerate heat dissipation through the drive module 12 according to the second cooling drive control signal, so as to reduce the temperature of the battery management system 1; when the lowest temperature information is lower than the preset second working temperature information, which indicates that the temperature of the battery management system 1 is too low at the moment, the communication module 11 controls the PTC heater 13 to be turned on, so that a heat source can be provided for the battery management system 1. Therefore, the battery management system 1 can work in a proper working temperature range, and the thermal management of the battery management system 1 is effectively realized.

In an alternative embodiment of the utility model, the vehicle heat sink comprises a cooling water solenoid valve 6; the driving end of the driving module 12 is electrically connected to the cooling water path electromagnetic valve 6, so as to control the cooling water path electromagnetic valve 6 to be opened according to the second cooling driving control signal to drive the air-conditioning refrigerant to dissipate heat of the battery management system 1.

The cooling water path electromagnetic valve 6 is a valve capable of introducing a refrigerant of an air conditioner into the cooling water path, and when the cooling water path electromagnetic valve 6 is opened, the refrigerant of the air conditioner enters the cooling water path, so that the heat dissipation and cooling effects on the battery management system 1 can be achieved.

In an alternative embodiment of the present invention, the communication module 11 includes a LIN communication sub-module 111, and the LIN communication sub-module 111 is communicatively connected to the PTC heater 13 through a LIN bus.

Lin (local Interconnect network) is a low-cost serial communication network, and is used for realizing control of a distributed electronic system in an automobile. Cost can be effectively saved by making the communication module 11 include the LIN communication sub-module 111, and the LIN communication sub-module 111 is connected in communication with the PTC heater 13 through the LIN bus.

In an alternative embodiment of the present invention, the vehicle heat-radiating component includes a cooling fan 5, the driving module 12 includes a low-side driving sub-module 121, and the low-side driving sub-module 121 includes a driving end of the cooling fan 5, and the driving end of the cooling fan 5 is electrically connected to the cooling fan 5 for controlling the working state of the cooling fan 5.

The low side drive is realized by adding a controllable switch to the ground terminal of the circuit. The low side drive controls the switch to be turned on or off. By providing the low-side driving sub-module 121, the driving end of the cooling fan 5 of the low-side driving sub-module 121 is electrically connected to the cooling fan 5, so that the low-side driving sub-module 121 can conveniently control the cooling fan 5 to be turned on or off.

In an alternative embodiment of the present invention, the vehicle heat dissipation component includes a cooling water path solenoid valve 6, the driving module 12 includes a high-side driving sub-module 122, the high-side driving sub-module 122 includes a driving end of the cooling water path solenoid valve 6, and the driving end of the cooling water path solenoid valve 6 is electrically connected to the cooling water path solenoid valve 6 for controlling an operating state of the cooling water path solenoid valve 6.

Wherein, the high-side drive is realized by adding a controllable switch at the power supply end of the circuit. The high-side drive controls the switch to be turned on or off. By arranging the high-side driving sub-module 122, the driving end of the cooling water path electromagnetic valve 6 of the high-side driving sub-module 122 is electrically connected with the cooling water path electromagnetic valve 6, so that the high-side driving sub-module 122 can conveniently control the cooling water path electromagnetic valve 6 to be opened and closed.

In an alternative embodiment of the present invention, the heat dissipating component of the vehicle includes a cooling water pump 7, the driving module 12 includes a motor driving sub-module 123, and the motor driving sub-module 123 includes a water pump driving end, and the water pump driving end is electrically connected to the cooling water pump 7 and is used for controlling the working state of the cooling water pump 7.

Wherein, because the power of the pump body is great, the pump body is usually driven by the motor, and cooling water pump 7 is the same principle, consequently, through setting up motor drive submodule 123, make the water pump drive end of motor drive submodule 123 electrically connected with cooling water pump 7, opening and closing and the rotational speed of control cooling water pump 7 that can be convenient.

In an alternative embodiment of the present invention, the communication module 11 includes a CAN communication sub-module 112, and the CAN communication sub-module 112 is communicatively coupled to the vehicle heat-generating component via a CAN bus.

The CAN communication sub-module 112 is an intelligent electronic control device for forwarding communication data between the electronic control devices of the whole vehicle, so that the whole vehicle CAN realize a regional network control system of the vehicle-mounted electronic control devices. Therefore, the vehicle controller CAN conveniently communicate with the heat generating component of the vehicle by including the CAN communication sub-module 112.

In a specific embodiment, the heat-generating component of the vehicle includes at least one of the battery management system 1, the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4, and the CAN communication submodule 112 communicates with at least one of the battery management system 1, the motor management system 2, the DCDC converter 3 and the vehicle-mounted charger 4 through a CAN bus.

In an alternative embodiment of the present invention, the acquisition module 9 includes a digital input acquisition submodule 92, and the digital input acquisition submodule 92 is used for acquiring the state of the inhibitor switch 14.

The communication module 11 is also used for acquiring vehicle speed information.

The main control module 10 is used for determining an execution gear according to the vehicle speed information and the state of the gear switch 14.

The digital input acquisition submodule 92 refers to a component for acquiring digital signals, the state of the shift switch 14 is usually digital signals, and the state of the shift switch 14 can be conveniently acquired by setting the digital input acquisition submodule 92. The vehicle speed information is information reflecting the current vehicle speed of the vehicle, so the main control module 10 can conveniently determine the execution gear according to the vehicle speed information and the state of the gear switch 14.

On the basis of the above embodiment, the vehicle comprises the gearshift switch 14, and the gearshift switch 14 state acquisition end of the digital input acquisition submodule 92 is electrically connected with the gearshift switch 14 to acquire the state of the gearshift switch 14.

The position switch 14 refers to a switch for adjusting a position of the vehicle, and the position switch 14 state of the position switch 14 can be conveniently acquired by electrically connecting the position switch 14 state acquisition end of the digital input acquisition submodule 92 with the position switch 14.

On the basis of the above embodiment, the vehicle includes the ABS controller 15, and the communication module 11 is connected to the ABS controller 15 through a bus in a communication manner to acquire the vehicle speed information.

The ABS controller 15 can monitor the speed of the vehicle, and thus, the communication module 11 and the ABS controller 15 can communicate with each other to obtain the speed information of the vehicle.

In an alternative embodiment of the utility model, the vehicle heat generating component comprises the motor management system 2 and the analog input acquisition sub-module 91 is also used to acquire a throttle position signal.

The communication module 11 is further configured to obtain vehicle speed information and charge/discharge capability information of the battery.

The main control module 10 is used for determining a vehicle torque demand according to the accelerator position signal and the vehicle speed information, and determining an output torque range according to the charge-discharge capacity information and the vehicle speed information of the battery; the vehicle torque request is then limited based on the output torque range to determine the implement torque.

The communication module 11 is also connected to the motor management system 2 in a communication manner through the bus, so that the motor management system 2 controls the motor to execute the execution torque.

The throttle position signal is usually an analog signal, and the throttle position signal can be conveniently acquired through the analog input module. The main control module 10 may determine the vehicle torque demand according to the accelerator position signal and the vehicle speed information in various ways, for example, by looking up a motor torque map, which is not specifically limited herein, but is only for example.

By obtaining the charge and discharge capacity of the battery, the vehicle speed information can be converted into the maximum torque and the minimum torque which can be output by the motor according to the vehicle speed information, and the output torque range which can be output by the motor can be determined. By obtaining the output torque range, the maximum torque is output when the vehicle torque request is greater than the maximum torque of the torque range, the minimum torque is output when the vehicle torque request is less than the minimum torque of the torque range, and the vehicle torque request is output as the execution torque when the vehicle torque request is within the output torque range. The communication module 11 is in communication connection with the motor management system 2 through a bus, so that the motor can be controlled to execute the execution torque, the motor can be controlled, and the function of the whole vehicle controller can be realized.

On the basis of the above embodiment, the vehicle further includes an accelerator pedal 16; the accelerator position acquisition end of the analog input acquisition submodule 91 is electrically connected to the accelerator pedal 16 to acquire an accelerator position signal.

The accelerator pedal 16 is also called an accelerator pedal, and is used for controlling a throttle of the vehicle, so that the vehicle speed can be adjusted. The accelerator position acquisition end of the analog input acquisition submodule 91 is electrically connected to the accelerator pedal 16, so that the analog input acquisition submodule 91 can conveniently acquire an accelerator position signal.

On the basis of the above embodiment, the vehicle heat-generating component includes the battery management system 1, and the communication module 11 is connected in communication with the battery management system 1 through a bus to acquire the charge and discharge capacity information of the battery.

Since the battery management system 1 is a system for managing the battery, the battery management system 1 has information on the charge/discharge capacity of the battery, and the communication module 11 is in communication with the battery management system 1 through a bus, so that the charge/discharge capacity of the battery can be acquired through the battery management system 1.

EXAMPLE III

The third embodiment of the utility model provides a vehicle, which comprises a cooling water path, a vehicle heat-generating component, a vehicle heat-radiating component and a vehicle control unit of any embodiment of the utility model.

According to the scheme, the vehicle comprises the cooling water path, the vehicle heat-generating component, the vehicle heat-radiating component and the vehicle control unit, the vehicle control unit comprises the acquisition module 9, the main control module 10, the communication module 11 and the driving module 12, the acquisition module 9 can acquire water temperature information of a water outlet of the vehicle cooling water path, and the communication module 11 can communicate with the vehicle heat-generating component to acquire temperature information of the vehicle heat-generating component; the input end of the main control module 10 is electrically connected with the acquisition module 9 and the communication module 11, and then the main control module 10 can output a driving control signal according to the water temperature information and/or the temperature information. Because the output end of the main control module 10 is electrically connected with the driving module 12, the driving module 12 can control the working state of the vehicle heat dissipation component according to the driving control signal, and further can control the temperature of each component, so that each component can work at a proper working temperature, and the heat management is realized. According to the scheme, the heat management function is integrated into the whole vehicle controller, and two or more original controllers are combined, so that the whole vehicle cost is reduced, and the software can be updated and upgraded more conveniently. Therefore, the heat management function is integrated into the whole vehicle controller, the vehicle cost is reduced, and the system is convenient to upgrade and maintain.

In an alternative embodiment of the present invention, as shown in fig. 3, the heat generating component of the vehicle includes at least one of a battery management system 1, a motor management system 2, a DCDC converter 3, and an on-board charger 4.

In an alternative embodiment of the present invention, the vehicle heat radiating part includes at least one of a cooling fan 5, a cooling water path solenoid valve 6, and a cooling water pump 7.

In an alternative embodiment of the utility model, the vehicle further comprises a water temperature sensor 8, the water temperature sensor 8 being adapted to measure the water temperature at the outlet of the cooling water circuit.

In an alternative embodiment of the present invention, the vehicle further includes at least one of a PTC heater 13, a range switch 14, an ABS controller 15, and an accelerator pedal 16.

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 illustrated 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 utility model. Therefore, although the present invention has been described in some detail by the above embodiments, the utility model is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the utility model, and the scope of the utility model is determined by the scope of the appended claims.

Claims

1. A vehicle controller for integrated thermal management of a vehicle, the vehicle comprising a cooling waterway, a vehicle heat-producing component, and a vehicle heat-dissipating component; the vehicle control unit is characterized by comprising an acquisition module (9), a main control module (10), a communication module (11) and a driving module (12);

the acquisition module (9) is used for acquiring water temperature information of a water outlet of the vehicle cooling water channel;

the communication module (11) is used for communicating with the vehicle heat-generating component to acquire the temperature information of the vehicle heat-generating component;

the input end of the main control module (10) is electrically connected with the acquisition module (9) and the communication module (11) and is used for outputting a driving control signal according to the water temperature information and/or the temperature information;

the output end of the main control module (10) is electrically connected with the driving module (12), and the driving module (12) is used for controlling the working state of the vehicle heat dissipation component according to the driving control signal.

2. The vehicle control unit according to claim 1, characterized in that the acquisition module (9) comprises an analog input acquisition submodule (91), wherein the analog input acquisition submodule (91) is used for acquiring water temperature information of a water outlet of a vehicle cooling water path;

the driving control signals comprise a first cooling driving control signal and a first heating driving control signal, the main control module (10) is used for comparing water temperature information with preset working water temperature information, outputting the first cooling driving control signal when the water temperature information is higher than the preset working water temperature information, and outputting the first heating driving control signal when the water temperature information is lower than the preset working water temperature information;

the driving module (12) is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the first cooling driving control signal and controlling the vehicle heat dissipation part to reduce heat dissipation according to the first heating driving control signal.

3. The vehicle control unit according to claim 2, characterized in that the vehicle comprises a water temperature sensor (8), and a water temperature information acquisition end of the analog input acquisition submodule (91) is electrically connected with the water temperature sensor (8) to acquire water temperature information of a water outlet of the cooling water path detected by the water temperature sensor (8).

4. The vehicle control unit according to claim 1, wherein the vehicle heat generating component comprises at least one of a motor management system (2), a DCDC converter (3) and an on-board charger (4);

the temperature information comprises first temperature information, and the communication module (11) is in communication connection with at least one of the motor management system (2), the DCDC converter (3) and the vehicle-mounted charger (4) through a bus so as to acquire the first temperature information of at least one of the motor management system (2), the DCDC converter (3) and the vehicle-mounted charger (4);

the main control module (10) is used for comparing the first temperature information with preset first working temperature information, outputting a first cooling driving control signal when the first temperature information is higher than the preset first working temperature information, and outputting a first heating driving control signal when the first temperature information is lower than the preset first working temperature information; the driving module (12) is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the first cooling driving control signal and controlling the vehicle heat dissipation part to reduce heat dissipation according to the first heating driving control signal.

5. Vehicle control unit according to claim 2 or 4, characterized in that the vehicle heat sink comprises a cooling fan (5) and a cooling water pump (7);

the driving end of the driving module (12) is electrically connected with the cooling fan (5) and/or the cooling water pump (7), and the driving module (12) is used for controlling the cooling fan (5) to be turned on and/or the rotating speed of the cooling water pump (7) to be increased according to the first cooling driving control signal and controlling the cooling fan (5) to be turned off and/or the rotating speed of the cooling water pump (7) to be decreased according to the first heating driving control signal.

6. Vehicle control unit according to claim 1, characterized in that the vehicle comprises a PTC heater (13), the vehicle heat generating components comprising a battery management system (1);

the temperature information comprises second temperature information, the communication module (11) is in communication connection with the battery management system (1) through a bus so as to acquire the second temperature information of the battery management system (1), and the second temperature information comprises highest temperature information and lowest temperature information;

the main control module (10) is used for comparing second temperature information with preset second working temperature information, outputting a second cooling drive control signal when the highest temperature information is higher than the preset second working temperature information, and outputting a second heating drive control signal when the lowest temperature information is lower than the preset second working temperature information;

the driving module (12) is used for controlling the vehicle heat dissipation part to accelerate heat dissipation according to the second cooling driving control signal;

the communication module (11) is also in communication connection with the PTC heater (13) through a bus, and the communication module (11) is used for controlling the opening of the PTC heater (13) according to the second heating drive control signal.

7. The vehicle control unit according to claim 6, characterized in that the vehicle heat dissipation component comprises a cooling water solenoid valve (6);

the driving end of the driving module (12) is electrically connected with the cooling water path electromagnetic valve (6) so as to control the cooling water path electromagnetic valve (6) to be opened according to a second cooling driving control signal to drive an air conditioning refrigerant to dissipate heat of the battery management system (1).

8. Vehicle control unit according to claim 6, characterized in that the communication module (11) comprises a LIN communication sub-module (111), the LIN communication sub-module (111) being in communication connection with the PTC heater (13) via a LIN bus.

9. The vehicle control unit according to claim 1, wherein the vehicle heat dissipation component comprises at least one of a cooling fan (5), a cooling water solenoid valve (6) and a cooling water pump (7), and the driving module (12) comprises at least one of the following:

the low-side driving submodule (121) comprises a driving end of a cooling fan (5), and the driving end of the cooling fan (5) is electrically connected with the cooling fan (5) and used for controlling the working state of the cooling fan (5);

the high-side driving submodule (122) comprises a cooling water path electromagnetic valve (6) driving end, and the cooling water path electromagnetic valve (6) driving end is electrically connected with the cooling water path electromagnetic valve (6) and used for controlling the working state of the cooling water path electromagnetic valve (6);

the motor driving submodule (123) comprises a water pump driving end, and the water pump driving end is electrically connected with the cooling water pump (7) and used for controlling the working state of the cooling water pump (7).

10. The vehicle control unit according to claim 1, wherein the communication module (11) comprises a CAN communication sub-module (112), and the CAN communication sub-module (112) is communicatively connected with the vehicle heat-generating component through a CAN bus.

11. The vehicle control unit according to claim 1, characterized in that the acquisition module (9) comprises a digital input acquisition submodule (92), the digital input acquisition submodule (92) being configured to acquire a state of the gear switch (14);

the communication module (11) is also used for acquiring vehicle speed information;

the main control module (10) is used for determining an execution gear according to the vehicle speed information and the state of the gear switch (14).

12. The vehicle control unit of claim 11, wherein the vehicle comprises a range switch (14), and a range switch (14) state acquisition end of the digital input acquisition submodule (92) is electrically connected with the range switch (14) to acquire the state of the range switch (14);

and/or the vehicle comprises an ABS controller (15), and the communication module (11) is in communication connection with the ABS controller (15) through a bus so as to acquire vehicle speed information.

13. The vehicle control unit of claim 2, wherein the vehicle heat generating component comprises a motor management system (2), and the analog input acquisition sub-module (91) is further configured to acquire a throttle position signal;

the communication module (11) is also used for acquiring vehicle speed information and charge-discharge capacity information of the battery;

the main control module (10) is used for determining a vehicle torque demand according to an accelerator position signal and vehicle speed information, and determining an output torque range according to the charge-discharge capacity information of the battery and the vehicle speed information; further limiting the vehicle torque request based on the output torque range to determine an execution torque;

the communication module (11) is also in communication connection with the motor management system (2) through a bus, so that the motor management system (2) controls the motor to execute the execution torque.

14. The vehicle control unit of claim 13, wherein the vehicle further includes an accelerator pedal (16);

the accelerator position acquisition end of the analog input acquisition submodule (91) is electrically connected with the accelerator pedal (16) to acquire an accelerator position signal;

and/or the vehicle heat-generating component comprises a battery management system (1), and the communication module (11) is in communication connection with the battery management system (1) through a bus so as to acquire the charge and discharge capacity information of the battery.

15. A vehicle comprising a cooling water circuit, vehicle heat generating and radiating components and a vehicle control unit of any one of claims 1-14.