Vehicle thermal management system and vehicle

Abstract

The invention discloses a vehicle thermal management system and a vehicle, and relates to the technical field of thermal management, and the vehicle thermal management system comprises a liquid driving heating module used for outputting heating liquid; the input end of the heating mode control module is connected with the output end of the liquid driving heating module; the input end of the battery heating module is connected with the first output end of the heating mode control module, the output end of the battery heating module is connected with the input end of the liquid driving heating module, and the battery heating module is arranged on a battery to be heated and used for conducting heat management on the battery to be heated under the condition that the first output end of the heating mode control module outputs the heating liquid; the input end of the vehicle heating module is connected with the second output end of the heating mode control module, the output end of the vehicle heating module is connected with the input end of the liquid driving heating module, and the vehicle heating module is used for conducting heat management on the vehicle under the condition that the second output end of the heating mode control module outputs the heating liquid. The functionality of the vehicle thermal management system is improved.

Description

Technical Field

[0001] The present application relates to the field of thermal management technology, and in particular to a vehicle thermal management system and a vehicle. Background Art

[0002] With the continuous development of thermal management technology, users have also put forward higher requirements on the structural design of vehicle thermal management systems.

[0003] The structural design method of the traditional vehicle thermal management system is to use a separate circuit to achieve a thermal management function. For example, battery heating requires the use of a heater in the heating circuit to achieve thermal management. The structural design method of this vehicle thermal management system has certain defects. There is a phenomenon that a set of heating architecture can only achieve one thermal management function. That is, this new vehicle thermal management system will cause the functionality of the vehicle thermal management system to be low because a set of heating architecture can only achieve one thermal management function.

[0004] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a vehicle thermal management system and a vehicle, aiming to solve the technical problem of low functionality of the vehicle thermal management system.

[0006] To achieve the above objectives, the present application provides a vehicle thermal management system, the vehicle thermal management system comprising:

[0007] a liquid-driven heating module, the liquid-driven heating module being used to output heated liquid;

[0008] a heating mode control module, wherein an input end of the heating mode control module is connected to an output end of the liquid-driven heating module;

[0009] a battery heating module, wherein an input end of the battery heating module is connected to a first output end of the heating mode control module, an output end of the battery heating module is connected to an input end of the liquid-driven heating module, the battery heating module is disposed on the battery to be heated, and is configured to perform thermal management on the battery to be heated when the first output end of the heating mode control module outputs the heated liquid;

[0010] A vehicle heating module, wherein the input end of the vehicle heating module is connected to the second output end of the heating mode control module, and the output end of the vehicle heating module is connected to the input end of the liquid-driven heating module. The vehicle heating module is used to perform thermal management on the vehicle when the second output end of the heating mode control module outputs the heated liquid.

[0011] In one embodiment, the liquid-driven heating module comprises:

[0012] a first three-way connector, wherein a first end of the first three-way connector is connected to the output end of the battery heating module, and a second end of the first three-way connector is connected to the output end of the vehicle heating module;

[0013] an electronic water pump, wherein an input end of the electronic water pump is connected to the third end of the first three-way connector;

[0014] A heating device, wherein the input end of the heating device is connected to the output end of the electronic water pump, and the output end of the heating device is connected to the input end of the heating mode control module.

[0015] In one embodiment, the heating mode control module includes:

[0016] a valve controller, the valve controller being configured to receive external thermal management information;

[0017] An electromagnetic three-way valve, wherein the first valve port of the electromagnetic three-way valve is connected to the output end of the heating device, the second valve port of the electromagnetic three-way valve is connected to the input end of the battery heating module, the third valve port of the electromagnetic three-way valve is connected to the input end of the vehicle heating module, and the control end of the electromagnetic three-way valve is connected to the valve controller, wherein the valve controller is also used to control the conduction state of the electromagnetic three-way valve based on the external thermal management information to enable the third valve port and / or the second valve port to output the heated liquid.

[0018] In one embodiment, the battery heating module includes:

[0019] a battery heater, wherein an input end of the battery heater is connected to the second valve port, an output end of the battery heater is connected to the first end of the first three-way connector, and the battery heater is disposed on the battery to be heated;

[0020] The vehicle heating module includes:

[0021] A heating device, wherein the input end of the heating device is connected to the third valve port, and the output end of the heating device is connected to the second end of the first three-way connector.

[0022] In one embodiment, when the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated does not have a heating demand, the valve controller controls the connection between the first valve port and the third valve port, and controls the connection between the first valve port and the second valve port;

[0023] When the external thermal management information indicates that the vehicle does not require heating and the battery to be heated does require heating, the valve controller controls the first valve port to be connected to the second valve port, and controls the first valve port to be blocked from the third valve port.

[0024] In one embodiment, when the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated has a heating demand, the valve controller controls the conduction between the first valve port and the third valve port based on the external thermal management information, and controls the conduction between the first valve port and the second valve port.

[0025] In one embodiment, when the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than a preset maximum temperature rise value, based on a preset thermal management priority and a preset thermal management ratio, the first valve port is controlled to be connected to the third valve port, and the first valve port is controlled to be connected to the second valve port.

[0026] In one embodiment, when the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than a preset maximum temperature rise value, the electronic water pump and the heating device are controlled based on the external thermal management information.

[0027] In one embodiment, the vehicle thermal management system includes:

[0028] Liquid supply kettle;

[0029] A second three-way joint, the first end of the second three-way joint is connected to the liquid supply kettle, the second end of the second three-way joint is connected to the second valve port of the electromagnetic three-way valve in the heating mode control module, and the third end of the second three-way joint is connected to the first end of the first three-way joint in the liquid-driven heating module.

[0030] In addition, to achieve the above objectives, the present application also provides a vehicle, which includes the above-mentioned vehicle thermal management system.

[0031] The embodiment of the present application provides a vehicle thermal management system, comprising a liquid-driven heating module, the liquid-driven heating module being used to output heated liquid; a heating mode control module, the input end of the heating mode control module being connected to the output end of the liquid-driven heating module; a battery heating module, the input end of the battery heating module being connected to the first output end of the heating mode control module, the output end of the battery heating module being connected to the input end of the liquid-driven heating module, the battery heating module being arranged on the battery to be heated, the battery heating module being used to perform thermal management on the battery to be heated when the first output end of the heating mode control module outputs heated liquid; a vehicle heating module, the output end of the vehicle heating module being connected to the first output end of the heating mode control module, the output end of the battery heating module being connected to the input end of the liquid-driven heating module, the battery heating module being arranged on the battery to be heated, the battery heating module being used to perform thermal management on the battery to be heated The input end is connected to the second output end of the heating mode control module, and the output end of the vehicle heating module is connected to the input end of the liquid-driven heating module. The vehicle heating module is used to perform thermal management on the vehicle when the second output end of the heating mode control module outputs heated liquid. This vehicle thermal management system can realize the output of heated liquid from the first output end of the heating mode control module and / or from the second output end of the heating mode control module through the heating mode control module, thereby realizing the thermal management of the battery to be heated by the battery heating module and / or the thermal management of the vehicle by the vehicle heating module, thereby avoiding the phenomenon that a set of heating architectures can only realize one thermal management function. This vehicle thermal management system can be based on a set of thermal management systems and realize the thermal management of the battery to be heated and / or the thermal management of the vehicle by the vehicle heating module through the heating mode control module, thereby improving the functionality of the vehicle thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the framework of the first embodiment of the vehicle thermal management system of the present application;

[0033] Figure 2 A schematic diagram of a commonly used vehicle thermal management system;

[0034] Figure 3 This is a schematic diagram of the framework of the first embodiment of the vehicle thermal management system of the present application;

[0035] Figure 4 This is a control diagram of the first embodiment of the vehicle thermal management system of the present application;

[0036] Figure 5 This is a control diagram of the second embodiment of the vehicle thermal management system of the present application;

[0037] Figure 6 This is a control diagram of the third embodiment of the vehicle thermal management system of the present application.

[0038] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0039] Description of Figure Numbers:

[0040] 10. Liquid-driven heating module; 20. Heating mode control module; 30. Battery heating module; 40. Vehicle heating module; 71. Battery liquid supply kettle; 72. Fourth three-way connector; 73. Battery electronic water pump; 110. Heating heat exchanger; 120. Refrigeration heat exchanger; 81. Heating liquid supply kettle; 82. Heating electronic water pump; 83. Heating heating device; 84. Heating electromagnetic three-way valve; 85. Third three-way connector; 91. Fifth three-way connector; 92. Condenser; 93. Sixth three-way connector; 94. Electronic expansion valve; 95. Refrigeration device; 11. First three-way connector; 12. Electronic water pump; 13. Heating device; 21. Electromagnetic three-way valve; 22. Valve controller; 31. Battery heater; 41. Heating device; 60. Second three-way connector; 50. Liquid supply kettle. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0042] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Currently, the thermal management architecture of a vehicle primarily consists of an electric drive cooling circuit, a battery cooling circuit, and a battery heating circuit. During vehicle operation and charging, the electric drive cooling circuit uses an electronic water pump 12 to drive coolant through high-temperature electrical components such as the motor and controller. After absorbing heat, the coolant flows to the radiator, where an electronic fan operates to cool the coolant and continue circulating. The battery cooling circuit also uses an electronic water pump 12 to drive coolant through the battery. After absorbing heat, the coolant flows to a heat exchanger, where it exchanges heat with the low-temperature refrigerant and continues circulating. For the battery heating circuit, an electric heater is typically added to the battery cooling circuit to heat the coolant. The heated coolant then flows to the battery, where it is heated and continues circulating. Common battery heating circuits typically incorporate an electric heater in series with the battery circuit. This heater heats the coolant, which then heats the battery. Alternatively, the battery circuit and the heater circuit share a common electric heater, with the opening of a solenoid three-way valve adjusted to allow the heated coolant to be used for either heating the heater or heating the battery. In other words, these battery heating circuit designs only provide a single battery heating function, resulting in a low-performance vehicle thermal management system.

[0044] Therefore, based on the above-mentioned deficiencies of vehicle thermal management systems, the vehicle thermal management system of the present application is proposed. The main solution of the embodiment of the present application is: through the heating mode control module, the heated liquid can be output from the first output terminal of the heating mode control module and / or from the second output terminal of the heating mode control module, thereby enabling the battery heating module to perform thermal management of the battery to be heated and / or the vehicle heating module to perform thermal management of the vehicle, thereby avoiding the phenomenon that a set of heating architectures can only perform one thermal management function. This vehicle thermal management system can be based on a set of thermal management systems and can achieve thermal management of the battery to be heated and / or thermal management of the vehicle by the vehicle heating module through the heating mode control module, thereby improving the functionality of the vehicle thermal management system.

[0045] Based on this, the embodiment of the present application provides a vehicle thermal management system, referring to Figure 1 , Figure 1 This is a schematic diagram of the framework of the first embodiment of the vehicle thermal management system of the present application.

[0046] Reference Figure 1 , the present application provides a vehicle thermal management system, the vehicle thermal management system comprising:

[0047] The liquid-driven heating module 10 is used to output heated liquid;

[0048] A heating mode control module 20 , wherein an input end of the heating mode control module 20 is connected to an output end of the liquid-driven heating module 10 ;

[0049] a battery heating module 30, wherein the input end of the battery heating module 30 is connected to the first output end of the heating mode control module 20, and the output end of the battery heating module 30 is connected to the input end of the liquid-driven heating module 10. The battery heating module 30 is disposed on the battery to be heated and is configured to perform thermal management on the battery to be heated when the first output end of the heating mode control module 20 outputs heated liquid;

[0050] The vehicle heating module 40 has an input end connected to the second output end of the heating mode control module 20, and an output end of the vehicle heating module 40 is connected to the input end of the liquid-driven heating module 10. The vehicle heating module 40 is used to perform thermal management on the vehicle when the second output end of the heating mode control module 20 outputs heated liquid.

[0051] For example, to achieve battery heating, refer to Figure 2 , Figure 2This is a schematic diagram of a commonly used vehicle thermal management system. In the battery liquid heat circuit solution, a battery electronic water pump 73 is used as the coolant power source. At the same time, a battery electronic water pump 73 and a heating electronic water pump 82 are arranged in the battery circuit and the heating circuit respectively. The heating electric heater 83 is arranged in the heating circuit. When the cab needs to be heated, the heating electric heater 83 starts and heats the coolant. The coolant enters the heater core in the heating device 41 through the heating electronic water pump 82 to heat the cab. When the battery needs to be heated, the heating electromagnetic three-way valve 84 is adjusted to adjust the opening, so that the coolant heated by the electric heating heater 83 enters the heating heat exchanger 110 and exchanges heat with the battery circuit coolant. The exchanged battery circuit coolant enters the battery through the battery electronic water pump 73 to heat the battery. It is worth noting that heat exchange can also be performed using the cooling heat exchanger 120 in the cooling circuit to provide heat for the battery circuit. That is to say, both the warm air circuit and the battery circuit need to be equipped with independent expansion water tanks, namely the battery liquid supply kettle 71 and the heating liquid supply kettle 81, as well as the battery electronic water pump 73 and the heating electronic water pump 82, to replenish coolant and drive their respective circuits, thereby greatly increasing the cost of thermal management (taking into account the miniaturization development of vehicles and minimizing the reuse of internal components). At the same time, battery heating requires heat provision from the heating circuit, that is, the functionality of a single circuit is not high.

[0052] In this embodiment, a new vehicle thermal management system is designed to implement battery heating and / or vehicle heating within a single circuit, thereby expanding the functionality of the vehicle thermal management system. The liquid-driven heating module 10 in the vehicle thermal management system is used to output heated liquid, specifically, to heat a liquid such as a refrigerant and then output it to the heating mode control module 20. The heating mode control module 20 then outputs the heated liquid to the battery heating module 30 and / or the vehicle heating module 40, depending on the actual situation, to achieve thermal management of the heated battery and / or the vehicle. Because the output here is heated liquid, the thermal management of the vehicle and the heated battery is heating. At this time, the battery heating circuit and the heating circuit share the liquid-driven heating module 10 and the heating mode control module 20, so that when only the battery has a heating demand, the heating mode control module 20 outputs the heating liquid alone to the battery circuit (i.e., the battery heating module 30) through the first output end for operation; when only the cab has a heating demand, the heating mode control module 20 outputs the heating liquid alone to the heating circuit (vehicle heating module 40) through the second output end for operation; when both battery heating and heating are required, the heating mode control module 20 outputs the heating liquid to the battery circuit through the first output end for operation, and at the same time outputs the heating liquid to the heating circuit through the second output end for operation, and continuously adjusts the opening of the second output end and the first output end according to the heating demand of the two places to ensure that the heating flow demand on both sides is met at the same time, thereby greatly improving the functionality of the vehicle thermal management system.

[0053] In the present embodiment, a vehicle thermal management system is provided, including a liquid-driven heating module 10, the liquid-driven heating module 10 is used to output heated liquid; a heating mode control module 20, the input end of the heating mode control module 20 is connected to the output end of the liquid-driven heating module 10; a battery heating module 30, the input end of the battery heating module 30 is connected to the first output end of the heating mode control module 20, the output end of the battery heating module 30 is connected to the input end of the liquid-driven heating module 10, the battery heating module 30 is arranged on the battery to be heated, and the battery heating module 30 is used to perform thermal management on the battery to be heated when the first output end of the heating mode control module 20 outputs heated liquid; a vehicle heating module 40, the vehicle heating module The input end of the block 40 is connected to the second output end of the heating mode control module 20, and the output end of the vehicle heating module 40 is connected to the input end of the liquid-driven heating module 10. The vehicle heating module 40 is used to thermally manage the vehicle when the second output end of the heating mode control module 20 outputs heated liquid. This vehicle thermal management system can achieve the output of heated liquid from the first output end of the heating mode control module 20 and / or from the second output end of the heating mode control module 20 through the heating mode control module 20, thereby achieving the thermal management of the battery to be heated by the battery heating module 30 and / or the thermal management of the vehicle by the vehicle heating module 40, thereby avoiding the phenomenon that a set of heating architectures can only achieve one thermal management function. This vehicle thermal management system can be based on a set of thermal management systems and achieve the thermal management of the battery to be heated and / or the thermal management of the vehicle by the vehicle heating module through the heating mode control module 20, thereby improving the functionality of the vehicle thermal management system.

[0054] Furthermore, based on the first embodiment of the present application, a second embodiment of the vehicle thermal management system of the present application is proposed, referring to Figure 3 , Figure 3 This is a schematic diagram of the framework of the first embodiment of the vehicle thermal management system of the present application. The liquid-driven heating module 10 includes:

[0055] A first three-way connector 11 , wherein a first end of the first three-way connector 11 is connected to an output end of the battery heating module 30 , and a second end of the first three-way connector 11 is connected to an output end of the vehicle heating module 40 ;

[0056] an electronic water pump 12, wherein an input end of the electronic water pump 12 is connected to the third end of the first three-way connector 11;

[0057] The heating device 13 has an input end connected to the output end of the electronic water pump 112 , and an output end of the heating device 13 is connected to an input end of the heating mode control module 20 .

[0058] In one embodiment, the heating mode control module 20 includes:

[0059] The valve controller 22 is used to receive external thermal management information;

[0060] The electromagnetic three-way valve 21, the first valve port of the electromagnetic three-way valve 21 is connected to the output end of the heating device 13, the second valve port of the electromagnetic three-way valve 21 is connected to the input end of the battery heating module 30, the third valve port of the electromagnetic three-way valve 21 is connected to the input end of the vehicle heating module 40, and the control end of the electromagnetic three-way valve 21 is connected to the valve controller 22, wherein the valve controller 22 is also used to control the conduction state of the electromagnetic three-way valve 21 based on external thermal management information to realize the output of heated liquid from the third valve port and / or the second valve port.

[0061] In this embodiment, the liquid-driven heating module 10 includes a first three-way connector 11, an electronic water pump 12, and a heating device 13. The first three-way connector 11 is used to receive the heated liquid output from the output end of the battery heating module 30 and / or the output end of the vehicle heating module 40. At this time, the heated liquid can be recovered to the electronic water pump 12 through the first three-way connector 11 after performing the heating function. The electronic water pump 12 re-transmits the heated liquid (which can be a refrigerant or other liquid) after use to the heating device 13 for heating so that it can be used later. The first three-way connector 11 can be a commonly used mechanical three-way interface, the electronic water pump 12 can be a commonly used in-vehicle driven water pump, and the heating device 13 can be an electric heating device. Of course, devices with the same function can also be selected according to actual conditions, and this is not limited here. It is worth noting that the driving speed of the electronic water pump 12 and the heating effect of the heating device 13 can be controlled by the connected controller. For example, in order to increase the temperature to a lower level, a smaller driving speed can be selected, that is, the liquid flow rate is slower, and a lower thermal power can be selected, that is, the liquid heating temperature is lower, thereby ensuring the effective use of energy and expanding the functionality of the liquid driven heating module 10 under different situations. When the heating liquid flows to the heating mode control module 20, the heating mode control module 20 will select a position for thermal management. The heating mode control module 20 includes a valve controller 22 and an electromagnetic three-way valve 21. The valve controller 22 will then control the conduction state of the electromagnetic three-way valve 21 based on external thermal management information to achieve the output of heating liquid from the third valve port and / or the second valve port. The external thermal management information is generally the heating information of the battery to be heated and the heating information required by the vehicle. The electromagnetic three-way valve 21 is then controlled based on the two information to ensure the intelligence of battery heating and vehicle heating control. At the same time, the vehicle heating and battery heating functions can be realized based on the electromagnetic three-way valve 21, thereby improving the functionality of the vehicle thermal management system.

[0062] In one embodiment, based on the first embodiment and / or the second embodiment of the present application, a third embodiment of the vehicle thermal management system of the present application is proposed. The battery heating module 30 includes:

[0063] A battery heater 31, wherein the input end of the battery heater 31 is connected to the second valve port, the output end of the battery heater 31 is connected to the first end of the first three-way connector 11, and the battery heater 31 is disposed on the battery to be heated;

[0064] The vehicle heating module 40 includes:

[0065] The heating device 41 has an input end connected to the third valve port, and an output end connected to the second end of the first three-way connector 11 .

[0066] In this embodiment, the battery heating module 30 includes a battery heater 31, which is used to heat the battery to be heated based on the heated liquid, that is, the battery heater 31 can be a device wrapped around a hot water pipe, and then the heat is transferred to the battery to be heated through the heated liquid flowing through the hot water pipe. Of course, it may also be necessary to set some insulation materials for packaging and set a material with good heat conductivity on one side of the battery to be heated to facilitate heat transfer. Of course, it can also be adaptively set according to actual conditions, which is not limited here. The vehicle heating module 40 includes a heating device 41, and the heating device 41 may include a fan to blow the heat in the heated liquid to the vehicle, and may also ensure other heating parts similar to air conditioning, which are not explained here one by one. Then, battery heating and heating can be achieved while receiving the heated liquid to ensure the functionality of the entire vehicle thermal management system.

[0067] Based on the first embodiment, the second embodiment and / or the third embodiment of the present application, a fourth embodiment of the vehicle thermal management system of the present application is proposed, with reference to Figure 4 , Figure 4 This is a control diagram of the first embodiment of the vehicle thermal management system of the present application. When the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated does not have a heating demand, the valve controller 22 controls the connection between the first valve port and the third valve port, and controls the connection between the first valve port and the second valve port.

[0068] Reference Figure 5 , Figure 5 This is a control diagram of the second embodiment of the vehicle thermal management system of the present application. When the external thermal management information indicates that the vehicle has no heating demand and the battery to be heated has a heating demand, the valve controller 22 controls the conduction between the first valve port and the second valve port, and controls the cutoff between the first valve port and the third valve port.

[0069] In this embodiment, when controlling the vehicle thermal management system, it will be controlled in three situations. One is when the cab has a heating demand and the battery pack has no heating demand, that is, at this time the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated has no heating demand. At this time, the heating device 13 will be started, and the electromagnetic three-way valve 21 will be switched to the heating circuit channel, and the electronic water pump 12 will work. At this time, the coolant (heating liquid) will be driven to flow through the heating device 13, the electromagnetic three-way valve 21, the heating device 41 (such as the heater core in the car), the first three-way connector 11 in sequence, and flow back to the electronic water pump 12 to complete the coolant circulation, so as to realize the normal start of the cab heating function. That is, at this time, when the heating device 13 is started and the electronic water pump 12 is driven, it is only necessary to use the valve controller 22 to control the conduction between the first valve port and the third valve port, and control the cutoff between the first valve port and the second valve port, thereby realizing the cab heating function. The second situation is when the cab does not require heating, but the battery pack does. That is, at this time, the external thermal management information indicates that the vehicle does not require heating, but the battery to be heated does require heating. In this case, the heating device 13 will be activated, and the electromagnetic three-way valve 21 will be switched to the battery circuit channel. The electronic water pump 12 will start, and the coolant (heating liquid) will be driven to flow through the heating device 13, the electromagnetic three-way valve 21, the battery heater 31, the first three-way connector 11 in sequence, and then flow back to the electronic water pump 12, completing the coolant circulation to achieve normal activation of the battery heating function. That is, at this time, when the heating device 13 is activated and the electronic water pump 12 is driven, it is only necessary to use the valve controller 22 to control the conduction between the first valve port and the second valve port and to control the blockage between the first valve port and the third valve port, thereby achieving the battery heating function. In this way, the separate functions of battery or heating can be realized, and two thermal management functions can be realized based on the same set of circuits, thereby expanding the functionality of the vehicle thermal management system.

[0070] Based on the first embodiment, the second embodiment, the third embodiment and / or the fourth embodiment of the present application, a fifth embodiment of the vehicle thermal management system of the present application is proposed, with reference to Figure 6 , Figure 6 This is a control diagram of the third embodiment of the vehicle thermal management system of the present application. When the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated has a heating demand, the valve controller 22 controls the conduction between the first valve port and the third valve port based on the external thermal management information, and controls the conduction between the first valve port and the second valve port.

[0071] In one embodiment, when the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than the preset maximum temperature rise value, based on the preset thermal management priority and the preset thermal management ratio, the conduction between the first valve port and the third valve port is controlled, and the conduction between the first valve port and the second valve port is controlled.

[0072] In one embodiment, when the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than a preset maximum temperature rise value, the electronic water pump 12 and the heating device 13 are controlled based on the external thermal management information.

[0073] In this embodiment, there is another control method for realizing battery heating and heating functions simultaneously, that is, when there is a heating demand in the cab and the battery pack has a heating demand, that is, when the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated has a heating demand, the heating device 13 will be started at this time, and the electromagnetic three-way valve 21 will be switched to the middle channel at the same time, so that coolant can flow in both circuits, and the electronic water pump 12 will work to drive the coolant to flow through the heating device 13 and the electromagnetic three-way valve 21 in sequence. After flowing through the electromagnetic three-way valve 21, the coolant is split, and part of the coolant flows through the heating device 41 and the first three-way connector 11 in sequence, and flows back to the electronic water pump 12, completing the coolant circulation and completing the activation of the cab heating function. The other part of the coolant flows through the heating device 13, the electromagnetic three-way valve 21, the battery heater 31, the first three-way connector 11 in sequence, and then flows back to the electronic water pump 12, completing the coolant circulation and completing the activation of the battery heating function. That is, at this time, the first valve port and the third valve port are controlled to be conductive, and the first valve port and the second valve port are controlled to be conductive. This allows for simultaneous battery heating and heating functions, thus expanding the functionality of the entire circuit.

[0074] In one embodiment, when realizing the battery heating and heating functions at the same time, in addition to directly controlling both sides of the electromagnetic three-way valve 21 to be opened at the same time, the electromagnetic three-way valve 21 will also be intelligently controlled based on the actual heating demand and the actual heating capacity that can be provided. Because the external thermal management information is the vehicle heating temperature rise value (i.e. the temperature rise value required for vehicle heating, which can be determined based on the real-time vehicle interior temperature and the target temperature rise) and the battery heating temperature rise value (i.e. the temperature rise value required by the battery, such as from the current low temperature to the set normal temperature value), the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value will be determined, and the maximum temperature rise value that can be achieved by using the heated liquid at this time will be determined. This set maximum temperature rise value can be determined based on the driving speed of the electronic water pump 12 and the heating temperature of the heater 13. For example, for the driving speed A of the electronic water pump 12 and the heating temperature B of the heater 13, the preset maximum temperature rise value C can be uniquely determined by looking up the table. That is, at this time, the operation of the electronic water pump 12 and the heater 13 can be determined based on the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value, so that the preset maximum temperature rise value is greater than the temperature sum value. Of course, the electronic water pump 12 and the heater 13 can also be adjusted under low temperature conditions to ensure a lower temperature rise value, thereby ensuring efficient use of energy. Another way is to not change the preset maximum temperature rise value, but to use the preset thermal management priority and the preset thermal management ratio. That is, the preset thermal management priority refers to the control taking into account the priorities of the two heatings, such as heating first, and the preset thermal management ratio refers to the heat distribution ratio. For example, 60% of the heating process is used to heat the liquid, and the remaining 40% can be used to heat the battery. Of course, this method is only implemented when the heating requirements of both parties cannot be met at the same time, thereby ensuring the intelligence and accuracy of heating and battery heating.

[0075] Based on the first, second, third, fourth, and / or fifth embodiments of the present application, a sixth embodiment of the vehicle thermal management system of the present application is proposed. The vehicle thermal management system includes:

[0076] Liquid supply kettle 50;

[0077] The second three-way connector 60, the first end of the second three-way connector 60 is connected to the liquid supply kettle 50, the second end of the second three-way connector 60 is connected to the second valve port of the electromagnetic three-way valve 21 in the heating mode control module 20, and the third end of the second three-way connector 60 is connected to the first end of the first three-way connector 11 in the liquid-driven heating module 10.

[0078] In this embodiment, the vehicle thermal management system includes a liquid supply kettle 50 (which can be a commonly used kettle for storing liquids such as coolant). The liquid supply kettle 50 is used to supply or recover liquid to the entire vehicle thermal management system, mainly based on density at different temperatures, thereby ensuring efficient and accurate thermal management. The liquid supply kettle 50 is connected to the liquid pipeline of the vehicle thermal management system via a second three-way connector 60. In this case, the liquid supply kettle 50 can be positioned between the second valve port of the electromagnetic three-way valve 21 in the heating mode control module 20 and the first end of the first three-way connector 11 in the liquid-driven heating module 10 based on the second three-way connector 60, thereby recovering or supplying liquid input from the first end of the first three-way connector 11 in the liquid-driven heating module 10. Of course, other locations can also be selected according to actual circumstances. For example, to ensure the heating effect, the second three-way connector 60 can be positioned between the electronic water pump 12 and the heating device, or to facilitate the use of the heating circuit, it can be positioned between the heating device 41 and the first three-way connector 11. This is not limited here.

[0079] Based on the above embodiments of the vehicle thermal management system, a vehicle is proposed, which includes the above vehicle thermal management system.

[0080] In this embodiment, the vehicle described above can achieve output of heated liquid from the first output terminal of the heating mode control module and / or from the second output terminal of the heating mode control module through the heating mode control module in the vehicle thermal management system, thereby enabling the battery heating module to perform thermal management of the battery to be heated and / or the vehicle heating module to perform thermal management of the vehicle, thereby avoiding the phenomenon where a set of heating architectures can only perform one thermal management function. This vehicle thermal management system can be based on a set of thermal management systems and achieve thermal management of the battery to be heated and / or thermal management of the vehicle by the vehicle heating module through the heating mode control module, thereby improving the functionality of the vehicle thermal management system.

[0081] The above are only some embodiments of the present application and are not intended to limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A vehicle thermal management system, characterized in that: The vehicle thermal management system comprises: a liquid-driven heating module, the liquid-driven heating module being used to output heated liquid; a heating mode control module, wherein an input end of the heating mode control module is connected to an output end of the liquid-driven heating module; a battery heating module, wherein an input end of the battery heating module is connected to a first output end of the heating mode control module, an output end of the battery heating module is connected to an input end of the liquid-driven heating module, the battery heating module is disposed on the battery to be heated, and is configured to perform thermal management on the battery to be heated when the first output end of the heating mode control module outputs the heated liquid; A vehicle heating module, wherein the input end of the vehicle heating module is connected to the second output end of the heating mode control module, and the output end of the vehicle heating module is connected to the input end of the liquid-driven heating module. The vehicle heating module is used to perform thermal management on the vehicle when the second output end of the heating mode control module outputs the heated liquid.

2. The vehicle thermal management system according to claim 1, wherein: The liquid-driven heating module comprises: a first three-way connector, wherein a first end of the first three-way connector is connected to the output end of the battery heating module, and a second end of the first three-way connector is connected to the output end of the vehicle heating module; an electronic water pump, wherein an input end of the electronic water pump is connected to the third end of the first three-way connector; A heating device, wherein the input end of the heating device is connected to the output end of the electronic water pump, and the output end of the heating device is connected to the input end of the heating mode control module.

3. The vehicle thermal management system according to claim 2, wherein: The heating mode control module includes: a valve controller, the valve controller being configured to receive external thermal management information; An electromagnetic three-way valve, wherein the first valve port of the electromagnetic three-way valve is connected to the output end of the heating device, the second valve port of the electromagnetic three-way valve is connected to the input end of the battery heating module, the third valve port of the electromagnetic three-way valve is connected to the input end of the vehicle heating module, and the control end of the electromagnetic three-way valve is connected to the valve controller, wherein the valve controller is also used to control the conduction state of the electromagnetic three-way valve based on the external thermal management information to enable the third valve port and / or the second valve port to output the heated liquid.

4. The vehicle thermal management system according to claim 3, wherein: The battery heating module includes: a battery heater, wherein an input end of the battery heater is connected to the second valve port, an output end of the battery heater is connected to the first end of the first three-way connector, and the battery heater is disposed on the battery to be heated; The vehicle heating module includes: A heating device, wherein the input end of the heating device is connected to the third valve port, and the output end of the heating device is connected to the second end of the first three-way connector.

5. The vehicle thermal management system according to claim 3, wherein: When the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated does not have a heating demand, the valve controller controls the connection between the first valve port and the third valve port, and controls the connection between the first valve port and the second valve port; When the external thermal management information indicates that the vehicle does not require heating and the battery to be heated does require heating, the valve controller controls the first valve port to be connected to the second valve port, and controls the first valve port to be blocked from the third valve port.

6. The vehicle thermal management system according to claim 3, wherein: When the external thermal management information indicates that the vehicle has a heating demand and the battery to be heated has a heating demand, the valve controller controls the conduction between the first valve port and the third valve port based on the external thermal management information, and controls the conduction between the first valve port and the second valve port.

7. The vehicle thermal management system according to claim 6, wherein: When the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than the preset maximum temperature rise value, based on the preset thermal management priority and the preset thermal management ratio, the first valve port and the third valve port are controlled to be connected, and the first valve port and the second valve port are controlled to be connected.

8. The vehicle thermal management system according to claim 7, wherein: When the temperature sum of the vehicle heating temperature rise value and the battery heating temperature rise value in the external thermal management information is greater than a preset maximum temperature rise value, the electronic water pump and the heating device are controlled based on the external thermal management information.

9. The vehicle thermal management system according to any one of claims 1 to 8, characterized in that: The vehicle thermal management system comprises: Liquid supply kettle; A second three-way joint, the first end of the second three-way joint is connected to the liquid supply kettle, the second end of the second three-way joint is connected to the second valve port of the electromagnetic three-way valve in the heating mode control module, and the third end of the second three-way joint is connected to the first end of the first three-way joint in the liquid-driven heating module.

10. A vehicle, characterized in that: The vehicle includes the vehicle thermal management system according to any one of claims 1 to 9.

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