Whole vehicle thermal management system controller, thermal management system and automobile

Abstract

The embodiment of the invention discloses a vehicle thermal management system controller, a thermal management system and a vehicle. The vehicle thermal management system controller comprises a main controller; the first controller is connected with the main controller, and the first controller is a controller of a water pump driver and a fan driver in an air conditioner control management system loop; the second controller is connected with the main controller, and the second controller is a controller of a battery water pump driver and a first switch electromagnetic valve driver in a battery thermal management system loop; and the third controller is connected with the main controller, and the third controller is a controller of a motor water pump driver and a second switch electromagnetic valve driver in a thermal management loop of the electric driving system. The integration of the whole vehicle thermal management system is realized, the development period is shortened, and the development cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of automobile control technology, and in particular to a whole vehicle thermal management system controller, a thermal management system and an automobile. Background Art

[0002] In the traditional vehicle thermal management system, components such as water pumps, fans, and solenoid valves are independent of each other, and each has a controller backplane. This leads to complex wiring harnesses for the vehicle thermal management system and increased costs. Therefore, the vehicle thermal management system is developing towards integration, and the control backplanes of each component are replaced by an integrated thermal management controller. However, the topological structure and degree of integration of the vehicle thermal management systems of different original equipment manufacturers (OEMs) are not exactly the same. Therefore, a platform-based integrated thermal management controller solution is needed. To meet the vehicle thermal management system requirements of different OEMs. Otherwise, it will lead to repeated development, increase the development cycle and development costs, and fail to meet the requirements of cost reduction and efficiency improvement. Summary of the invention

[0003] The present invention provides a whole vehicle thermal management system controller, a thermal management system and a vehicle, which realize the integration of the whole vehicle thermal management system, shorten the development cycle and reduce the development cost.

[0004] According to one aspect of the present invention, a vehicle thermal management system controller is provided, comprising:

[0005] Main controller;

[0006] A first controller, the first controller is connected to the main controller, and the first controller is a controller of a water pump driver and a fan driver in a loop of an air conditioning control management system;

[0007] A second controller, the second controller is connected to the main controller, and the second controller is a controller of a battery water pump driver and a first switch solenoid valve driver in a battery thermal management system circuit;

[0008] The third controller is connected to the main controller and is a controller for the motor water pump driver and the second switch solenoid valve driver in the thermal management loop of the electric drive system.

[0009] Optionally, the vehicle thermal management system controller also includes a fourth controller, which is connected to the main controller and is a controller of an electric water valve driver of at least one of the air conditioning control management system loop, the battery thermal management system loop, and the electric drive system thermal management loop.

[0010] Optionally, the vehicle thermal management system controller also includes a fifth controller, which is connected to the main controller and is a controller of the motor driver in the active air intake grille.

[0011] Optionally, the vehicle thermal management system controller also includes at least one sixth controller, which is connected to the main controller and is a controller of an expansion valve driver in the air conditioning control management system loop.

[0012] Optionally, the vehicle thermal management system controller also includes a seventh controller, which is connected to the main controller and is a controller for driving the high-side drive solenoid valve and the low-side drive solenoid valve in the load.

[0013] Optionally, the vehicle thermal management system controller, the main controller also includes multiple sensor signal input terminals, and the sensor signal output terminal is connected to at least one of a water temperature sensor, a liquid level sensor, a refrigerant temperature sensor, a thermistor and a water valve height sensor.

[0014] Optionally, the first controller includes a communication terminal.

[0015] Optionally, the communication terminal includes a CAN communication terminal or a LIN communication terminal.

[0016] According to another aspect of the present invention, a whole vehicle thermal management system is provided, comprising a thermal management system and a whole vehicle thermal management system controller according to any embodiment of the present invention.

[0017] According to another aspect of the present invention, there is provided an automobile, comprising an automobile and the vehicle thermal management system according to any embodiment of the present invention.

[0018] The vehicle thermal management system controller provided by the embodiment of the present invention includes a main controller; a first controller is a controller of a water pump driver and a fan driver in the air conditioning control management system loop; a second controller is a controller of a battery water pump driver and a first switch solenoid valve driver in the battery thermal management system loop; and a third controller is a controller of a motor water pump driver and a second switch solenoid valve driver in the electric drive system thermal management loop. The main controller, as the core of the entire thermal management system, sends control instructions to the first controller, the second controller, and the third controller. By centrally controlling the components in each thermal management system loop, real-time monitoring of the entire system can be achieved to meet the vehicle thermal management system requirements of different OEMs. The integrated development of the vehicle thermal management system is achieved, the development cycle is shortened, and the development cost is reduced.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a module schematic diagram of a vehicle thermal management system controller provided by an embodiment of the present invention.

[0022] Figure 2 It is a module schematic diagram of another vehicle thermal management system controller provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The embodiment of the present invention provides a vehicle thermal management system controller, Figure 1 Schematic diagram of a module of a vehicle thermal management system controller provided by an embodiment of the present invention. Figure 1 , vehicle thermal management system controller, including:

[0026] Main controller 10;

[0027] A first controller 11, the first controller 11 is connected to the main controller 10, and the first controller 11 is a controller of a water pump driver 101 and a fan driver 102 in the air conditioning control management system loop 100;

[0028] A second controller 12, which is connected to the main controller 10, and is a controller of a battery water pump driver 201 and a first switch solenoid valve driver 202 in a battery thermal management system circuit 200;

[0029] The third controller 13 is connected to the main controller 10 . The third controller 13 is a controller of the motor water pump driver 301 and the second switch solenoid valve driver 302 in the thermal management circuit 300 of the electric drive system.

[0030] The main controller 10 uses the TRAVOIICY2Bx series chip as a microcontroller, which has an M0+M4 dual-core design and can meet the functional safety requirements of the Automotive Safety Integrity Level (ASIL) B. The first controller 11 uses the TLE9563 series chip. The second controller 12 and the third controller 13 both use the TLE92104 chip.

[0031] Specifically, the main controller 10, as the core of the entire thermal management system, sends control instructions to the first controller 11, the second controller 12 and the third controller 13. When the temperature sensor detects that the temperature in the vehicle or the ambient temperature exceeds the set range, the main controller 10 will send instructions to the first controller 11 as needed. After receiving the instruction, the first controller 11 will control the water pump driver 101 to start or adjust the water pump speed to adjust the circulation speed of the coolant. At the same time, the first controller 11 will also control the fan driver 102 to start or adjust the fan speed to accelerate the heat dissipation in the vehicle or condenser. When the battery temperature sensor detects that the battery temperature is abnormal, the main controller 10 will send instructions to the second controller 12. After receiving the instruction, the second controller 12 will control the battery water pump driver 201 to start or adjust the water pump speed to adjust the circulation speed of the battery coolant. The second controller 12 will also control the first switch solenoid valve driver 202 to open or close the corresponding solenoid valve to adjust the flow direction and flow rate of the coolant, thereby achieving precise control of the battery temperature. When the motor temperature sensor detects that the motor temperature is abnormal, the main controller 10 will send instructions to the third controller 13. After receiving the instruction, the third controller 13 controls the motor water pump driver 301 to start or adjust the water pump speed to adjust the circulation speed of the motor coolant. At the same time, the third controller 13 also controls the second switch solenoid valve driver 302 to open or close the corresponding solenoid valve to adjust the flow direction and flow rate of the coolant, thereby achieving precise control of the motor temperature.

[0032] The vehicle thermal management system controller provided by the embodiment of the present invention includes a main controller 10; a first controller 11 is a controller of a water pump driver 101 and a fan driver 102 in an air conditioning control management system loop 100; a second controller 12 is a controller of a battery water pump driver 201 and a first switch solenoid valve driver 202 in a battery thermal management system loop 200; and a third controller 13 is a controller of a motor water pump driver 301 and a second switch solenoid valve driver 302 in an electric drive system thermal management loop 300. The main controller 10, as the core of the entire thermal management system, sends control instructions to the first controller 11, the second controller 12, and the third controller 13. By centrally controlling the components in each thermal management system loop, real-time monitoring of the entire system can be achieved to meet the vehicle thermal management system requirements of different OEMs. The integrated development of the vehicle thermal management system is realized, the development cycle is shortened, and the development cost is reduced.

[0033] Figure 2 Schematic diagram of another vehicle thermal management system controller provided by an embodiment of the present invention. Figure 2 The vehicle thermal management system controller also includes a fourth controller 14, which is connected to the main controller 10. The fourth controller 14 is a controller of an electric water valve driver 401 of at least one of the air conditioning control management system loop 100, the battery thermal management system loop 200 and the electric drive system thermal management loop 300.

[0034] The fourth controller 14 uses the DRV8876 chip.

[0035] Specifically, the main controller 10, as the core of the entire thermal management system, sends control instructions to the first controller 11, the second controller 12, the third controller 13 and the fourth controller 14. The working process of the water pump driver 101 and the fan driver 102 in the above embodiment remains unchanged. When it is necessary to adjust the flow rate or flow direction of the coolant in the air conditioning system, the main controller 10 will send an instruction to the fourth controller 14. After receiving the instruction, the fourth controller 14 will control the electric water valve driver 401 in the air conditioning control management system loop 100 to open or close a specific electric water valve to adjust the flow rate or flow direction of the coolant. The working process of the battery water pump driver 201 and the first switch solenoid valve driver 202 in the above embodiment remains unchanged. If the fourth controller 14 controls the electric water valve in the battery thermal management system loop 200, the main controller 10 will send an instruction to the fourth controller 14 according to the battery temperature or cooling demand. After receiving the instruction, the fourth controller 14 will control the corresponding electric water valve driver 401 to open or close the electric water valve in the battery thermal management system loop 200 to adjust the flow rate or flow direction of the coolant, thereby optimizing the battery cooling effect. The working process of the motor water pump driver 301 and the second switch solenoid valve driver 302 in the above embodiment remains unchanged. If the fourth controller 14 controls the electric water valve in the thermal management loop 300 of the electric drive system, the main controller 10 will send instructions to the fourth controller 14 according to the motor temperature or cooling requirements. After receiving the instructions, the fourth controller 14 will control the corresponding electric water valve driver 401 to open or close the electric water valve in the thermal management loop 300 of the electric drive system to adjust the flow rate or flow direction of the coolant, thereby optimizing the cooling effect of the motor. The fourth controller 14 not only controls the electric water valve in a single thermal management system loop, but may also coordinate the operation of the electric water valves in multiple loops according to the instructions of the main controller 10 to achieve optimal control of the thermal management system of the entire vehicle.

[0036] Optionally, the vehicle thermal management system controller also includes a fifth controller 15, which is connected to the main controller 10, and the fifth controller 15 is a controller of the motor driver 501 in the active air intake grille.

[0037] Specifically, the main controller 10, as the core of the entire thermal management system, sends control instructions to the first controller 11, the second controller 12, the third controller 13, the fourth controller 14 and the fifth controller 15. When the vehicle driving state or environmental conditions change, the main controller 10 will send instructions to the fifth controller 15 as needed. After receiving the instructions, the fifth controller 15 will control the motor driver 501 in the active air intake grille to start or adjust the motor speed, thereby changing the opening of the air intake grille. The change in the opening of the air intake grille will affect the air flow entering the engine compartment, and then affect the heat dissipation effect of the engine cooling system. By accurately controlling the opening of the air intake grille, the engine temperature can be accurately adjusted.

[0038] Optionally, the vehicle thermal management system controller also includes at least one sixth controller 16 , which is connected to the main controller 10 , and is a controller of the expansion valve driver 601 in the air conditioning control management system loop 100 .

[0039] The sixth controller 16 uses the DRV8889 chip.

[0040] Specifically, when the vehicle is started, the main controller 10 establishes a communication connection with the sixth controller 16. The main controller 10 continuously monitors data from various sensors, including the temperature inside the vehicle, the temperature outside the vehicle, the evaporator temperature, the condenser temperature, and the refrigerant pressure. The main controller 10 determines whether the air conditioning refrigeration function needs to be turned on based on the difference between the temperature inside the vehicle and the set temperature, as well as environmental factors such as the temperature outside the vehicle and the intensity of solar radiation. If refrigeration is required, the main controller 10 will calculate the required refrigeration capacity and send a control instruction to the sixth controller 16 accordingly. After receiving the instruction from the main controller 10, the sixth controller 16 will send a control signal to the expansion valve driver 601 according to the preset control strategy. The expansion valve driver 601 adjusts the opening of the expansion valve according to the received signal, thereby controlling the flow of the refrigerant in the evaporator. The opening adjustment of the expansion valve will affect the evaporation pressure and temperature of the refrigerant, and then affect the refrigeration effect of the evaporator. During the refrigeration process, the main controller 10 continuously monitors parameters such as the evaporator temperature and the refrigerant pressure, and adjusts the instructions to the sixth controller 16 in a timely manner according to the changes in these parameters. The sixth controller 16 then adjusts the opening of the expansion valve according to the new instruction to keep the evaporator in the best working state.

[0041] Optionally, the vehicle thermal management system controller also includes a seventh controller 17 , which is connected to the main controller 10 , and is a controller for driving the high-side drive solenoid valve 701 and the low-side drive solenoid valve 702 in the load 600 .

[0042] Among them, the seventh controller 17 adopts the BTS7200 chip.

[0043] Specifically, when the vehicle is started, the main controller 10 establishes communication with the seventh controller 17. If it is necessary to start or adjust the working state of the driving load 600, the main controller 10 will send a corresponding control instruction to the seventh controller 17. After receiving the instruction from the main controller 10, the seventh controller 17 will send a control signal to the high-side drive solenoid valve 701 and the low-side drive solenoid valve 702 according to the preset control strategy. The high-side drive solenoid valve 701 is usually used to control the on-off of the high-voltage circuit, while the low-side drive solenoid valve 702 is used to control the on-off of the low-voltage circuit. By accurately controlling the switching state of the high-side drive solenoid valve 701 and the low-side drive solenoid valve 702, accurate control of the driving load 600 can be achieved. During the working process of the driving load 600, the main controller 10 will continuously monitor the data of the relevant sensors (such as temperature, pressure, flow, etc.), and adjust the instructions to the seventh controller 17 in a timely manner according to the changes of these data. The seventh controller 17 adjusts the switch states of the high-side drive solenoid valve 701 and the low-side drive solenoid valve 702 according to the new instruction to keep the drive load 600 in the best working state.

[0044] Optionally, the vehicle thermal management system controller, the main controller 10 also includes multiple sensor 18 signal input ends, and the sensor 18 signal output end is connected to at least one of the water temperature sensor 111, the liquid level sensor 112, the refrigerant temperature sensor 113, the thermistor 114 and the water valve height sensor 115.

[0045] Specifically, when the vehicle is started, the main controller 10 establishes communication with the water temperature sensor 111, the liquid level sensor 112, the refrigerant temperature sensor 113, the thermal resistor 114 and the water valve height device 115 to ensure that the sensors can work normally and transmit data accurately. The water temperature sensor 111 monitors the water temperature of the cooling system to ensure that key components such as the engine and the battery pack work within a suitable temperature range. The liquid level sensor 112 monitors the liquid level of liquids such as coolant and refrigerant to prevent system failure or damage caused by too low a liquid level. The refrigerant temperature sensor 113 monitors the temperature of the refrigerant in the system to ensure that the refrigeration system can work normally and provide appropriate cooling effects. The thermal resistor 114 may monitor the temperature of a specific component or area to provide additional temperature control information. The water valve height device 115 may monitor the position or height of the water valve to ensure the normal operation of the water circulation system. The main controller 10 will receive data from each sensor regularly or as needed, and process and store it. The main controller 10 will analyze and process the received sensor data to determine the current state and requirements of the thermal management system. For example, if the water temperature sensor 111 shows that the water temperature is too high, the main controller 10 may decide to increase the speed of the cooling fan or open more radiator channels to increase the heat dissipation effect. If the liquid level sensor 112 shows that the coolant level is too low, the main controller 10 may trigger an alarm and instruct the driver to add coolant. Based on the results of data processing, the main controller 10 will send control instructions to each driver. The driver will adjust its working state according to the received instructions to meet the requirements of the vehicle thermal management system of different OEMs.

[0046] Optionally, the first controller 11 includes a communication terminal 103 .

[0047] Specifically, the first controller 11 can achieve high-speed and reliable data exchange and communication with other vehicle-mounted devices through the communication terminal 103, thereby improving the communication efficiency of the entire thermal management system.

[0048] Optionally, the communication terminal 103 includes a CAN communication terminal 1031 or a LIN communication terminal 1032 .

[0049] Specifically, according to the vehicle network architecture and communication requirements, the first controller 11 will choose to use the CAN communication terminal 1031 or the LIN communication terminal 1032 for communication. The CAN communication terminal 1031 is usually used for high-speed, high-bandwidth communication scenarios, such as communication with key components such as the central controller, battery management system, and motor control system. The LIN communication terminal 1032 is mainly used for low-speed, low-cost communication scenarios, such as communication with components such as body control modules, windows, and lights.

[0050] According to another aspect of the present invention, a whole vehicle thermal management system is provided, comprising a thermal management system and a whole vehicle thermal management system controller according to any embodiment of the present invention.

[0051] According to another aspect of the present invention, there is provided an automobile, comprising an automobile and the vehicle thermal management system according to any embodiment of the present invention.

[0052] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0053] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle thermal management system controller, characterized in that it includes: Main controller; A first controller, the first controller is connected to the main controller, and the first controller is a controller of a water pump driver and a fan driver in a loop of an air conditioning control management system; A second controller, the second controller is connected to the main controller, and the second controller is a controller of a battery water pump driver and a first switch solenoid valve driver in a battery thermal management system circuit; A third controller, the third controller is connected to the main controller, and the third controller is a controller of the motor water pump driver and the second switch solenoid valve driver in the thermal management loop of the electric drive system.

2. The vehicle thermal management system controller according to claim 1 is characterized in that it also includes a fourth controller, which is connected to the main controller, and the fourth controller is a controller of the electric water valve driver of at least one of the air conditioning control management system loop, the battery thermal management system loop and the electric drive system thermal management loop.

3. The vehicle thermal management system controller according to claim 1 is characterized in that it also includes a fifth controller, which is connected to the main controller and is a controller of the motor driver in the active air intake grille.

4. The vehicle thermal management system controller according to claim 1 is characterized in that it also includes at least one sixth controller, which is connected to the main controller and is the controller of the expansion valve driver in the air conditioning control management system loop.

5. The vehicle thermal management system controller according to claim 1 is characterized in that it also includes a seventh controller, which is connected to the main controller and is a controller for driving the high-side drive solenoid valve and the low-side drive solenoid valve in the load.

6. The vehicle thermal management system controller according to claim 1 is characterized in that the main controller also includes multiple sensor signal input terminals, and the sensor signal output terminal is connected to at least one of a water temperature sensor, a liquid level sensor, a refrigerant temperature sensor, a thermistor, and a water valve height sensor.

7. The vehicle thermal management system controller according to claim 1, characterized in that the first controller includes a communication terminal.

8. The vehicle thermal management system controller according to claim 7, characterized in that the communication terminal includes a CAN communication terminal or a LIN communication terminal.

9. A vehicle thermal management system, characterized in that: It includes the vehicle thermal management system controller as described in any one of claims 1-8.

10. An automobile, characterized in that: Including the vehicle thermal management system as described in claim 9.

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