Vehicle thermal management system and vehicle

Abstract

The present application relates to a vehicle thermal management system and a vehicle, and to the field of vehicle technology. The vehicle thermal management system includes a liquid storage device, a heat exchange device and an injection device; wherein the liquid storage device is used to store a liquid medium; the heat exchange device is connected to the liquid storage device, and is used to heat the liquid medium in the liquid storage device; the injection device is conductively connected to the liquid storage device, and is used to spray the liquid medium in the liquid storage device to the wheels of the vehicle. The liquid medium stored in the liquid storage device is heated by the heat exchange device. When the wheels of the vehicle slip on the snow, the injection device is controlled to start and the liquid medium in the liquid storage device is sprayed to the wheels of the vehicle. In this way, as the wheels slip and rotate, the heated liquid medium is distributed on the contact surface between the wheels and the snow to melt the ice and snow, thereby improving the grip of the wheels, thereby helping the vehicle to get out of the snow.

Description

Technical Field

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

[0002] The vehicle thermal management system is a system that controls and optimizes heat transfer. It automatically adjusts the cooling intensity according to the vehicle's driving conditions and external environmental conditions to ensure that key components such as the engine, engine oil, lubricants, pressurized air, fuel, and electronic devices operate within the optimal temperature range.

[0003] At present, in cold and snowy areas, vehicles often face problems such as wheel slippage and vehicle entrapment during driving, which affect driving safety. In the related technology, the solution to the problem of vehicle wheel slippage and entrapment usually relies on the vehicle's traction system. If the vehicle's wheels slip, the traction system will reduce the driving force to prevent the driving wheels from idling when the vehicle is driving on snowy roads, etc., which helps the vehicle to start smoothly and get out of trouble. However, the traction system can only be used for snow escape scenarios where some wheels still have grip. When the wheels continue to slip, it is difficult to adjust the traction system to get the vehicle out of the snow. Therefore, how to effectively get the vehicle out of the snow is a problem that needs to be solved urgently. Summary of the invention

[0004] An embodiment of the present application provides a vehicle thermal management system to enable the vehicle to escape from the snow, thereby at least partially solving the above-mentioned technical problems.

[0005] In order to achieve the above object, according to a first aspect of the present application, a vehicle thermal management system is provided, comprising:

[0006] A liquid storage device, used for storing liquid medium;

[0007] a heat exchange device, connected to the liquid storage device, and used to heat the liquid medium in the liquid storage device;

[0008] The injection device is conductively connected to the liquid storage device and is used for injecting the liquid medium in the liquid storage device to the wheels of the vehicle.

[0009] Optionally, the heat exchange device includes an engine heat exchange assembly connected to an engine heat exchange system of the vehicle;

[0010] The engine heat exchange component at least partially extends into the liquid storage device to transfer heat of the engine heat exchange system to the liquid medium in the liquid storage device when the engine heat exchange component is in communication with the engine heat exchange system.

[0011] Optionally, the engine heat exchange assembly includes a first connecting pipeline, a second connecting pipeline and a first heat exchange pipeline;

[0012] One end of the first connecting pipeline is connected to one end of the first heat exchange pipeline, and the other end of the first connecting pipeline is connected to the engine heat exchange system;

[0013] One end of the second connecting pipeline is connected to the other end of the first heat exchange pipeline, and the other end of the second connecting pipeline is connected to the engine heat exchange system.

[0014] Wherein, a partial section of the first heat exchange pipeline extends into the liquid storage device.

[0015] Optionally, the engine heat exchange assembly further includes a first cut-off member, and the first cut-off member is disposed between the liquid storage device and the engine heat exchange system.

[0016] Optionally, the first cut-off member includes a third connecting pipeline and a first three-way valve;

[0017] The first valve port of the first three-way valve is connected to one end of the first connecting pipeline, the second valve port is connected to one end of the first heat exchange pipeline, and the third valve port is connected to one end of the third connecting pipeline;

[0018] The other end of the third connecting pipeline is connected to the other end of the first heat exchange pipeline and the second connecting pipeline.

[0019] Optionally, it also includes a controller and a first temperature sensor for collecting the first temperature of the liquid medium. The engine heat exchange system is provided with a second temperature sensor for collecting the second temperature of the coolant of the engine heat exchange system. The controller is connected to the first temperature sensor and the second temperature sensor, and is used for outputting an engine heat exchange signal to the engine heat exchange component when the second temperature is greater than the first temperature, so as to control the engine heat exchange system to perform heat exchange with the liquid medium.

[0020] Optionally, the heat exchange device further includes:

[0021] A motor waste heat exchange component connected to the motor heat exchange system of the vehicle, wherein the motor waste heat exchange component at least partially extends into the liquid storage device so as to transfer the heat of the motor heat exchange system to the liquid medium in the liquid storage device when the motor waste heat exchange component is connected to the motor heat exchange system.

[0022] Optionally, the motor waste heat exchange assembly includes a fourth connecting pipeline, a fifth connecting pipeline and a second heat exchange pipeline;

[0023] One end of the fourth connecting pipeline is connected to one end of the second heat exchange pipeline, and the other end of the fourth connecting pipeline is connected to the motor heat exchange system;

[0024] One end of the fifth connecting pipeline is connected to the other end of the second heat exchange pipeline, and the other end of the fifth connecting pipeline is connected to the motor heat exchange system.

[0025] Wherein, a partial section of the second heat exchange pipeline extends into the liquid storage device.

[0026] Optionally, the motor waste heat exchange assembly further includes a second cutting piece, and the second cutting piece is arranged between the liquid storage device and the motor heat exchange system.

[0027] Optionally, the second cut-off member includes the second three-way valve and a sixth connecting pipeline;

[0028] The first valve port of the second three-way valve is connected to one end of the fourth connecting pipeline, the second valve port is connected to one end of the second heat exchange pipeline, and the third valve port is connected to one end of the sixth connecting pipeline;

[0029] The other end of the sixth connecting pipeline is connected to the second heat exchange pipeline and the fifth connecting pipeline.

[0030] Optionally, it also includes a controller and a first temperature sensor for collecting the first temperature of the liquid medium, and the motor heat exchange system is provided with a third temperature sensor for collecting the third temperature of the coolant of the motor heat exchange system; the controller is connected to the first temperature sensor and the third temperature sensor, and is used to output a motor heat exchange signal to the motor waste heat exchange component when the third temperature is greater than the first temperature, so as to control the motor heat exchange system to perform heat exchange with the liquid medium.

[0031] Optionally, the heat exchange device also includes an exhaust gas heat exchange component, which is arranged on the outer wall of the exhaust pipe of the vehicle and located in the liquid storage device; wherein, the exhaust pipe passes through the liquid storage device, so that the exhaust gas heat exchange component transfers the heat of the exhaust pipe to the liquid medium in the liquid storage device.

[0032] Optionally, the exhaust gas heat exchange component includes a heat exchange plate, and the heat exchange plate is arranged on the outer wall of the pipe section of the exhaust gas pipe located in the liquid storage device.

[0033] Optionally, the heat exchange device further comprises a battery heating assembly electrically connected to the power battery of the vehicle, and the battery heating assembly is disposed in the liquid storage device.

[0034] Optionally, the battery heating assembly includes an electric heater and a control switch;

[0035] The electric heater is located in the liquid storage device, the positive electrode of the electric heater is connected to the positive electrode of the power battery of the vehicle, and the negative electrode of the electric heater is connected to the negative electrode of the power battery;

[0036] The control switch is connected in series to the positive electrode or the negative electrode of the electric heater.

[0037] Optionally, the spraying device includes a water pump, a spraying pipe and a nozzle;

[0038] The water pump is arranged in the liquid storage device;

[0039] One end of the injection pipe is communicated with the liquid outlet of the water pump, and the other end extends to the outside of the liquid storage device and then communicated with the nozzle.

[0040] Optionally, a controller and a wheel speed sensor are also included;

[0041] The wheel speed sensor is arranged on the wheel of the vehicle to collect the rotation speed of the wheel and output a rotation speed signal;

[0042] The controller is connected to the wheel speed sensor, and in response to the rotation speed signal, outputs a prompt signal to the human-machine interaction system of the vehicle to prompt the injection device to be turned on to inject the liquid medium in the liquid storage device to the wheel.

[0043] According to a second aspect of the present application, a vehicle is provided, comprising the vehicle thermal management system as described above.

[0044] In the vehicle thermal management system of the embodiment of the present application, the heat exchange device is connected to the liquid storage device, and heats the liquid medium stored in the liquid storage device to increase the temperature of the liquid medium. When the vehicle wheels slip on the snow, the injection device is controlled to start to spray the liquid medium in the liquid storage device to the vehicle wheels, and as the wheels slip and rotate, the heated liquid medium is distributed on the contact surface between the wheels and the snow to melt the ice and snow. The water film formed by the melted ice and snow is more likely to provide friction to the wheels than solid ice and snow, thereby improving the grip of the wheels and helping the vehicle to get out of the snow.

[0045] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0047] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0048] Figure 1 is a block diagram of a vehicle thermal management system provided in an exemplary embodiment of the present disclosure;

[0049] Figure 2 is a schematic diagram of a heat exchange device provided in an exemplary embodiment of the present disclosure.

[0050] Figure 3 1 is a connection structure diagram of a vehicle thermal management system provided in an exemplary embodiment of the present disclosure.

[0051] Figure 4 2 is a schematic diagram of a vehicle thermal management system provided in an exemplary embodiment of the present disclosure for use in vehicle escape from snow.

[0052] Figure 5 Schematic diagram of the connection relationship of controllers in a vehicle thermal management system provided in an exemplary embodiment of the present disclosure.

[0053] Description of reference numerals:

[0054] 1. Liquid storage device;

[0055] 2. Heat exchange device; 21. Engine heat exchange assembly; 211. First connecting pipeline; 212. Second connecting pipeline; 213. Third connecting pipeline; 214. First heat exchange pipeline; 215. First three-way valve; 22. Motor waste heat exchange assembly; 221. Fourth connecting pipeline; 222. Fifth connecting pipeline; 223. Sixth connecting pipeline; 224. Second heat exchange pipeline; 225. Second three-way valve; 23. Exhaust heat exchange assembly; 231. Heat exchange plate; 24. Battery heating assembly; 241. Electric heater;

[0056] 3. Spraying device; 31. Water pump; 32. Spraying pipe; 33. Nozzle;

[0057] 4. A first temperature sensor;

[0058] 5. Controller;

[0059] 6. Wheel speed sensor. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0061] According to the first aspect of the present application, referring to Figures 1 to 5 The present disclosure provides a vehicle thermal management system, including a liquid storage device 1, a heat exchange device 2 and an injection device 3.

[0062] Among them, the liquid storage device 1 is used to store liquid medium; the heat exchange device 2 is connected to the liquid storage device 1 and is used to heat the liquid medium in the liquid storage device 1; the injection device 3 is conductively connected to the liquid storage device 1 and is used to inject the liquid medium in the liquid storage device 1 to the wheels of the vehicle.

[0063] As an example, the liquid storage device 1 can be a box, and the outside of the box is covered with insulation material, and the connection between the liquid storage device 1 and the heat exchange device 2 and the connection between the liquid storage device 1 and the injection device 3 are sealed to reduce the heat exchange between the liquid medium in the liquid storage device 1 and the outside world. The liquid medium can be water.

[0064] As an example, a plurality of injection devices 3 are provided. The injection device 3 may be provided only near the driving wheels of the vehicle, or one injection device 3 may be provided near each wheel.

[0065] In the above embodiment, the heat exchange device 2 is connected to the liquid storage device 1, and heats the liquid medium stored in the liquid storage device 1 to increase the temperature of the liquid medium. When the vehicle wheels slip on the snow, the injection device 3 is controlled to start so as to spray the liquid medium in the liquid storage device 1 onto the vehicle wheels. As the wheels slip and rotate, the heated liquid medium is distributed on the contact surface between the wheels and the snow to melt the ice and snow. The water film formed by the melted ice and snow is more likely to provide friction to the wheels than solid ice and snow, thereby improving the grip of the wheels and helping the vehicle to get out of the snow.

[0066] Reference Figure 2 In some embodiments, the heat exchange device 2 includes an engine heat exchange component 21 connected to the engine heat exchange system of the vehicle.

[0067] The engine heat exchange component 21 at least partially extends into the liquid storage device 1 so as to transfer the heat of the engine heat exchange system to the liquid medium in the liquid storage device 1 when the engine heat exchange component 21 is connected to the engine heat exchange system.

[0068] Reference Figure 3 As an example, the engine heat exchange assembly 21 includes a first connecting pipeline 211 , a second connecting pipeline 212 and a first heat exchange pipeline 214 .

[0069] Among them, one end of the first connecting pipeline 211 is connected to one end of the first heat exchange pipeline 214, and the other end of the first connecting pipeline 211 is connected to the engine heat exchange system; one end of the second connecting pipeline 212 is connected to the other end of the first heat exchange pipeline 214, and the other end of the second connecting pipeline 212 is connected to the engine heat exchange system.

[0070] Among them, part of the pipe section of the first heat exchange pipeline 214 extends into the liquid storage device 1, the first heat exchange pipeline 214 can be a U-shaped pipe, and the pipe section of the first heat exchange pipeline 214 extending into the liquid storage device 1 is bent into a spiral shape to increase the contact area between the first heat exchange pipeline 214 and the liquid medium in the liquid storage device 1, thereby improving the heat exchange efficiency.

[0071] In some embodiments, the engine heat exchange assembly 21 further includes a first cut-off member, which is disposed between the liquid storage device 1 and the engine heat exchange system.

[0072] As an example, the first cut-off member includes a third connecting pipeline 213 and a first three-way valve 215. The first valve port of the first three-way valve 215 is connected to one end of the first connecting pipeline 211, the second valve port is connected to one end of the first heat exchange pipeline 214, and the third valve port is connected to one end of the third connecting pipeline 213; the other end of the third connecting pipeline 213 is connected to the other end of the first heat exchange pipeline 214 and the second connecting pipeline 212.

[0073] As an example, when the vehicle is started, a large amount of heat is generated during the operation of the engine, including the heat generated by the combustion of fuel in the engine or the heat generated by mechanical friction. The engine heat exchange system is mainly used to dissipate the heat generated by the engine to ensure that the engine operates in a suitable temperature range. The engine heat exchange system usually includes cooling water channels, radiators, water pumps and other components, so that the coolant circulates in the cooling water channels to absorb and take away the heat generated by the engine cylinder block, cylinder head and other components. The engine heat exchange assembly 21 is used to exchange heat between the engine heat exchange system and the liquid storage device 1. While taking away the heat generated by the engine, the heat can also be used to heat the liquid medium in the liquid storage device 1.

[0074] Combination Figure 4As an example, when the engine heat exchange system heats the liquid medium in the liquid storage device 1, the first valve port of the first three-way valve 215 is connected to the second valve port, so that the coolant in the engine heat exchange system flows into one end of the first heat exchange pipeline 214 after passing through the first connecting pipeline 211. When the coolant flows through the pipe section in the first heat exchange pipeline 214 extending to the liquid storage device 1, heat exchange is performed with the liquid medium in the liquid storage device 1. Then the coolant flows out from the other end of the first heat exchange pipeline 214 to the second connecting pipeline 212, and the second connecting pipeline 212 transmits the coolant to the engine heat exchange system, thereby realizing heat exchange between the coolant in the engine heat exchange system and the liquid medium in the liquid storage device 1.

[0075] As an example, when the engine heat exchange system does not need to heat the liquid medium in the liquid storage device 1, the first valve port of the first three-way valve 215 is connected to the third valve port, so that the coolant of the engine heat exchange system passes through the first connecting pipe 211, the third connecting pipe 213 and the second connecting pipe 212 in sequence and then is transmitted to the engine heat exchange system without passing through the first heat exchange pipe 214.

[0076] In the above embodiment, the connection or disconnection between the engine heat exchange system and the liquid storage device 1 is achieved by controlling the first three-way valve 215 , thereby achieving heat exchange control between the engine heat exchange system and the liquid storage device 1 .

[0077] Reference Figure 2 In some embodiments, the heat exchange device 2 also includes a motor waste heat exchange component 22 connected to the motor heat exchange system of the vehicle, and the motor waste heat exchange component 22 at least partially extends into the liquid storage device 1, so that when the motor waste heat exchange component 22 is connected to the motor heat exchange system, the heat of the motor heat exchange system is transferred to the liquid medium in the liquid storage device 1.

[0078] In some embodiments, the motor waste heat exchange assembly 22 includes a fourth connecting pipeline 221 , a fifth connecting pipeline 222 and a second heat exchange pipeline 224 .

[0079] One end of the fourth connecting pipeline 221 is connected to one end of the second heat exchange pipeline 224, and the other end of the fourth connecting pipeline 221 is connected to the motor heat exchange system. One end of the fifth connecting pipeline 222 is connected to the other end of the second heat exchange pipeline 224, and the other end of the fifth connecting pipeline 222 is connected to the motor heat exchange system.

[0080] As an example, a partial section of the second heat exchange pipeline 224 extends into the liquid storage device 1, the second heat exchange pipeline 224 can be a U-shaped pipe, and the section of the second heat exchange pipeline 224 extending into the liquid storage device 1 is bent into a spiral shape to increase the contact area between the second heat exchange pipeline 224 and the liquid medium in the liquid storage device 1, thereby improving the heat exchange efficiency.

[0081] In some embodiments, the motor waste heat exchange assembly 22 further includes a second cut-off piece, and the second cut-off piece is disposed between the liquid storage device 1 and the motor heat exchange system.

[0082] In some embodiments, the second shut-off member includes a second three-way valve 225 and a sixth connecting pipeline 223 .

[0083] Among them, the first valve port of the second three-way valve 225 is connected to one end of the fourth connecting pipeline 221, the second valve port is connected to one end of the second heat exchange pipeline 224, and the third valve port is connected to one end of the sixth connecting pipeline 223; the other end of the sixth connecting pipeline 223 is connected to the second heat exchange pipeline 224 and the fifth connecting pipeline 222.

[0084] As an example, when the vehicle is started, the chemical reaction inside the power battery during operation will generate a large amount of heat. The motor waste heat exchange component 22 is mainly used to dissipate the heat generated by the power battery to ensure that the battery operates in a suitable temperature range. The battery heat exchange system usually includes cooling water channels, radiators, water pumps and other components, so that the coolant circulates in the cooling water channels to absorb and take away the heat from the surface of the power battery. Through the motor waste heat exchange component 22, heat exchange is performed between the motor heat exchange system and the liquid storage device 1. While taking away the heat generated by the battery, the heat can also be used to heat the liquid medium in the liquid storage device 1.

[0085] Combination Figure 4 As an example, when the battery heat exchange system heats the liquid medium in the liquid storage device 1, the first valve port of the second three-way valve 225 is connected to the second valve port, so that the coolant in the battery heat exchange system flows into one end of the second heat exchange pipeline 224 after passing through the fourth connecting pipeline 221. When the coolant flows through the pipe section in the second heat exchange pipeline 224 extending into the liquid storage device 1, heat exchange is performed with the liquid medium in the liquid storage device 1. Then the coolant flows out from the other end of the second heat exchange pipeline 224 to the fifth connecting pipeline 222, and the fifth connecting pipeline 222 transmits the coolant to the battery heat exchange system, thereby realizing heat exchange between the coolant in the battery heat exchange system and the liquid medium in the liquid storage device 1.

[0086] As an example, when the battery heat exchange system does not need to heat the liquid medium in the liquid storage device 1, the first valve port of the second three-way valve 225 is connected to the third valve port, so that the coolant of the motor heat exchange system passes through the fourth connecting pipeline 221, the sixth connecting pipeline 223 and the fifth connecting pipeline 222 in sequence and then is transmitted to the battery heat exchange system without passing through the second heat exchange pipeline 224.

[0087] In the above embodiment, the connection or disconnection between the battery heat exchange system and the liquid storage device 1 is achieved by controlling the second three-way valve 225 , thereby achieving heat exchange control between the battery heat exchange system and the liquid storage device 1 .

[0088] Reference Figure 2 In some embodiments, the heat exchange device 2 also includes an exhaust gas heat exchange component 23, which is arranged on the outer wall of the exhaust pipe of the vehicle and is located in the liquid storage device 1; wherein the exhaust pipe passes through the liquid storage device 1, so that the exhaust gas heat exchange component 23 transfers the heat of the exhaust pipe to the liquid medium in the liquid storage device 1.

[0089] Among them, the tail pipe is used to discharge the tail gas after the engine combustion process. During the operation of the engine, the fuel is mixed with air and burned in the combustion chamber, generating high-temperature and high-pressure combustion gas to drive the piston to move. After pushing the piston, the combustion gas is discharged from the engine through the exhaust valve to become tail gas, so that the tail gas contains a large amount of heat energy. By directly passing the tail pipe through the liquid storage device 1, the outer wall of the tail pipe can directly contact the liquid medium in the liquid storage device 1 to heat the liquid medium, and the heat exchange efficiency is improved by the tail gas heat exchange component 23 arranged on the outer wall of the tail pipe.

[0090] Reference Figure 3 As an example, the exhaust gas heat exchange component 23 includes a heat exchange plate 231, and the heat exchange plate 231 is arranged on the outer wall of the pipe section of the exhaust pipe located in the liquid storage device 1.

[0091] The heat exchange sheet 231 can be wrapped around the outer wall of the tail pipe and in close contact with the outer wall of the tail pipe for heat transfer. The heat exchange sheet 231 can be configured to have a corrugated or uneven surface to further improve the heat exchange efficiency.

[0092] It should be noted that the thermal management system may include one of the engine heat exchange component 21, the motor waste heat exchange component 22 and the exhaust gas heat exchange component 23, or it may include a combination of multiple or all of the engine heat exchange component 21, the motor waste heat exchange component 22 and the exhaust gas heat exchange component 23.

[0093] Reference Figure 2 In some embodiments, the heat exchange device 2 further includes a battery heating assembly 24 electrically connected to the power battery of the vehicle, and the battery heating assembly 24 is disposed in the liquid storage device 1 .

[0094] As an example, the battery heating assembly 24 includes an electric heater 241 and a control switch K; the electric heater 241 is located in the liquid storage device 1, the positive pole of the electric heater 241 is connected to the positive pole of the power battery of the vehicle, and the negative pole of the electric heater 241 is connected to the negative pole of the power battery; the control switch K is connected in series to the positive pole or negative pole of the electric heater 241.

[0095] As an example, the electric heater 241 can be a thermistor with a positive temperature coefficient. When the battery heating component 24 heats the liquid medium in the liquid storage device 1, the control switch K is closed to discharge the power battery to the electric heater 241. When current passes through the electric heater 241, the electric heater 241 generates heat, thereby heating the liquid medium.

[0096] Reference Figure 3 and Figure 4 In some embodiments, the spraying device 3 includes a water pump 31 , a spraying pipe 32 and a nozzle 33 .

[0097] The water pump 31 is disposed in the liquid storage device 1 ; one end of the injection pipe 32 is connected to the liquid outlet of the water pump 31 , and the other end extends to the outside of the liquid storage device 1 and is connected to the nozzle 33 .

[0098] As an example, the water outlet of the nozzle 33 may be directed toward the wheels of the vehicle.

[0099] In the above embodiment, the heated liquid medium is extracted by a water pump 31 disposed in the storage device, delivered to the nozzle 33 through the injection pipe 32, and the liquid medium is sprayed to the wheel by the nozzle 33. The heated liquid medium can melt the ice and snow at the wheel to form a water film, thereby enhancing the grip of the wheel, thereby reducing the slip of the wheel and helping the vehicle to get out of the snow.

[0100] Reference Figure 5 In some embodiments, the thermal management system further includes a controller 5 and a first temperature sensor 4 for collecting a first temperature of a liquid medium. A second temperature sensor for collecting a second temperature of a coolant in the engine heat exchange system is provided in the engine heat exchange system. The controller 5 is connected to the first temperature sensor 4 and the second temperature sensor, and is used to output an engine heat exchange signal to the engine heat exchange component 21 when the second temperature is greater than the first temperature, so as to control the engine heat exchange system to perform heat exchange with the liquid medium.

[0101] As an example, combining Figure 3 and Figure 5 CS1 represents an engine heat exchange signal, and the engine heat exchange signal is used to control the conduction state of the first three-way valve 215 in the engine heat exchange component 21.

[0102] In the above embodiment, when the engine starts, the coolant in the engine heat exchange system has not been fully circulated, and its temperature is relatively low. If the engine heat exchange system and the liquid medium perform heat exchange at this time, it may cause energy loss of the liquid medium. By setting the controller 5, the first temperature sensor 4 and the second temperature sensor, when the controller 5 detects that the second temperature is higher than the first temperature, the controller 5 outputs an engine heat exchange signal to the engine heat exchange component 21 to start the heat exchange between the engine heat exchange system and the liquid medium, thereby transferring the heat of the coolant in the engine heat exchange system to the liquid medium.

[0103] In some embodiments, the motor heat exchange system is provided with a third temperature sensor for collecting the third temperature of the coolant of the motor heat exchange system; the controller 5 is connected to the first temperature sensor 4 and the third temperature sensor, and is used to output a motor heat exchange signal to the motor waste heat exchange component 22 when the third temperature is greater than the first temperature, so as to control the motor heat exchange system to perform heat exchange with the liquid medium.

[0104] As an example, combining Figure 3 and Figure 5 CS2 represents a motor heat exchange signal, and the motor heat exchange signal is used to control the conduction state of the second three-way valve 225 in the motor waste heat exchange component 22.

[0105] In the above embodiment, when the vehicle is started, the coolant in the motor heat exchange system has not been fully circulated, and its temperature is relatively low. If the motor heat exchange system is heat exchanged with the liquid medium at this time, it may cause energy loss of the liquid medium. By setting the controller 5, the first temperature sensor 4 and the third temperature sensor, when the controller 5 detects that the third temperature is higher than the first temperature, the controller 5 outputs a motor heat exchange signal to the motor waste heat exchange component 22 to start the heat exchange between the motor heat exchange system and the liquid medium, thereby transferring the heat of the coolant in the motor heat exchange system to the liquid medium.

[0106] Furthermore, the controller 5 is also connected to the control switch K, and is used to output a battery heating signal to the control switch K when the first temperature is lower than a preset temperature threshold, so that the control switch K is closed, thereby achieving heating of the liquid medium by discharging the power battery when the temperature of the liquid medium does not reach the preset threshold.

[0107] As an example, combining Figure 4 and Figure 5 , CS3 represents the battery heating signal.

[0108] In some embodiments, the thermal management system further includes a wheel speed sensor 6. The wheel speed sensor 6 is disposed on the wheel of the vehicle to collect the rotation speed of the wheel and output a rotation speed signal. The controller 5 is connected to the wheel speed sensor 6, and in response to the rotation speed signal, outputs a prompt signal to the human-machine interaction system of the vehicle to prompt the injection device 3 to be turned on to inject the liquid medium in the liquid storage device 1 to the wheel.

[0109] As an example, a corresponding wheel speed sensor 6 is set on each wheel, and the controller 5 compares the rotational speed signal of each wheel speed sensor 6 to determine the wheel in the slipping state. When the driver turns on the escape function based on the prompt signal, the controller 5 sends an injection control signal to the corresponding injection device 3 based on the determined wheel in the slipping state to control the injection device 3 at the wheel in the slipping state to turn on.

[0110] According to a second aspect of the present disclosure, a vehicle is provided, the vehicle comprising the above-mentioned vehicle thermal management system. The vehicle has all the beneficial effects of the above-mentioned vehicle thermal management system, which will not be described in detail in the present disclosure.

[0111] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present disclosure does not make any specific limitation on this.

[0112] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0113] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0114] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0115] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A vehicle thermal management system, characterized in that: include: A liquid storage device, used for storing liquid medium; a heat exchange device, connected to the liquid storage device, and used to heat the liquid medium in the liquid storage device; an injection device, which is conductively connected to the liquid storage device and is used to inject the liquid medium in the liquid storage device to the wheels of the vehicle; The spray device is arranged near the driving wheels of the vehicle or one spray device is arranged near each wheel; The vehicle thermal management system also includes a controller; The controller responds to the speed signal to determine the wheel in the slipping state, and outputs a prompt signal to the human-machine interaction system of the vehicle to prompt the injection device to be turned on to inject the liquid medium in the liquid storage device to the wheel; wherein the controller sends an injection control signal to the corresponding injection device based on the determined wheel in the slipping state to control the injection device at the slipping wheel to be turned on; The heat exchange device includes a motor waste heat exchange component connected to the motor heat exchange system of the vehicle, the motor waste heat exchange component includes a fourth connecting pipeline, a fifth connecting pipeline and a second heat exchange pipeline; the motor waste heat exchange component also includes a second cut-off piece, and the second cut-off piece includes a second three-way valve and a sixth connecting pipeline; The first valve port of the second three-way valve is connected to one end of the fourth connecting pipeline, the second valve port is connected to one end of the second heat exchange pipeline, and the third valve port is connected to one end of the sixth connecting pipeline; the other end of the sixth connecting pipeline is connected to the second heat exchange pipeline and the fifth connecting pipeline; It also includes a first temperature sensor for collecting the first temperature of the liquid medium, and the motor heat exchange system is provided with a third temperature sensor for collecting the third temperature of the coolant of the motor heat exchange system; the controller is connected to the first temperature sensor and the third temperature sensor, and is used to output a motor heat exchange signal to the motor waste heat exchange component when the third temperature is greater than the first temperature, so as to control the motor heat exchange system to perform heat exchange with the liquid medium.

2. The vehicle thermal management system according to claim 1, characterized in that: The heat exchange device includes an engine heat exchange assembly connected to the engine heat exchange system of the vehicle; The engine heat exchange component at least partially extends into the liquid storage device to transfer heat of the engine heat exchange system to the liquid medium in the liquid storage device when the engine heat exchange component is in communication with the engine heat exchange system.

3. The vehicle thermal management system according to claim 2, characterized in that: The engine heat exchange assembly includes a first connecting pipeline, a second connecting pipeline and a first heat exchange pipeline; One end of the first connecting pipeline is connected to one end of the first heat exchange pipeline, and the other end of the first connecting pipeline is connected to the engine heat exchange system; One end of the second connecting pipeline is connected to the other end of the first heat exchange pipeline, and the other end of the second connecting pipeline is connected to the engine heat exchange system; Wherein, a partial section of the first heat exchange pipeline extends into the liquid storage device.

4. The vehicle thermal management system according to claim 3, characterized in that: The engine heat exchange assembly further includes a first cut-off member, which is disposed between the liquid storage device and the engine heat exchange system.

5. The vehicle thermal management system according to claim 4, characterized in that: The first cut-off member includes a third connecting pipeline and a first three-way valve; The first valve port of the first three-way valve is connected to one end of the first connecting pipeline, the second valve port is connected to one end of the first heat exchange pipeline, and the third valve port is connected to one end of the third connecting pipeline; The other end of the third connecting pipeline is connected to the other end of the first heat exchange pipeline and the second connecting pipeline.

6. The vehicle thermal management system according to claim 2, characterized in that: It also includes a controller and a first temperature sensor for collecting the first temperature of the liquid medium. The engine heat exchange system is provided with a second temperature sensor for collecting the second temperature of the coolant of the engine heat exchange system. The controller is connected to the first temperature sensor and the second temperature sensor, and is used to output an engine heat exchange signal to the engine heat exchange component when the second temperature is greater than the first temperature, so as to control the engine heat exchange system to perform heat exchange with the liquid medium.

7. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that: The motor waste heat exchange component at least partially extends into the liquid storage device, so as to transfer the heat of the motor heat exchange system to the liquid medium in the liquid storage device when the motor waste heat exchange component is connected to the motor heat exchange system.

8. The vehicle thermal management system according to claim 7, characterized in that: One end of the fourth connecting pipeline is connected to one end of the second heat exchange pipeline, and the other end of the fourth connecting pipeline is connected to the motor heat exchange system; One end of the fifth connecting pipeline is connected to the other end of the second heat exchange pipeline, and the other end of the fifth connecting pipeline is connected to the motor heat exchange system; Wherein, a partial section of the second heat exchange pipeline extends into the liquid storage device.

9. The vehicle thermal management system according to claim 8, characterized in that: The second cut-off member is arranged between the liquid storage device and the motor heat exchange system.

10. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that: The heat exchange device also includes an exhaust gas heat exchange component, which is arranged on the outer wall of the exhaust pipe of the vehicle and located in the liquid storage device; wherein the exhaust pipe passes through the liquid storage device, so that the exhaust gas heat exchange component transfers the heat of the exhaust pipe to the liquid medium in the liquid storage device.

11. The vehicle thermal management system according to claim 10, characterized in that: The exhaust gas heat exchange component includes a heat exchange plate, and the heat exchange plate is arranged on the outer wall of the pipe section of the exhaust pipe located in the liquid storage device.

12. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that: The heat exchange device also includes a battery heating component electrically connected to the power battery of the vehicle, and the battery heating component is arranged in the liquid storage device.

13. The vehicle thermal management system according to claim 12, characterized in that: The battery heating assembly includes an electric heater and a control switch; The electric heater is located in the liquid storage device, the positive electrode of the electric heater is connected to the positive electrode of the power battery of the vehicle, and the negative electrode of the electric heater is connected to the negative electrode of the power battery; The control switch is connected in series to the positive electrode or the negative electrode of the electric heater.

14. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that: The spraying device comprises a water pump, a spraying pipeline and a nozzle; The water pump is arranged in the liquid storage device; One end of the injection pipe is communicated with the liquid outlet of the water pump, and the other end extends to the outside of the liquid storage device and then communicated with the nozzle.

15. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that: Also includes wheel speed sensors; The wheel speed sensor is arranged on the wheel of the vehicle to collect the rotation speed of the wheel and output a rotation speed signal; the controller is connected to the wheel speed sensor.

16. A vehicle, characterized in that: A vehicle thermal management system comprising any one of claims 1 to 15.

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