Battery replacement heavy truck thermal management system and method

Abstract

The embodiment of the invention provides a thermal management system and method for a battery replacement heavy truck, and relates to the technical field of battery thermal management. The system comprises a vehicle end heat source loop, a radiator and a first valve group, a first interface of the first valve group is connected with an output interface of the vehicle-end heat source loop, a second interface of the first valve group is connected with an input interface of the radiator, a third interface of the first valve group is connected with an output interface of the radiator in parallel, and an output interface of the radiator is connected with an input interface of the vehicle-end heat source loop; and the first valve group is used for controlling the flow of the cooling water passing through the radiator. Therefore, the cooling water is controlled by the first valve group to pass through the radiator or not, the water path can effectively utilize the vehicle-end waste heat of the vehicle-end heat source loop to quickly heat up as much as possible, a cab is heated firstly, then the battery is heated through the heat exchanger, and the waste heat utilization efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal management, and in particular, to a thermal management system and method for a battery-swapping heavy truck. Background Art

[0002] As a pure electric vehicle, a battery-swapping heavy truck has a relatively greater power demand compared to ordinary passenger cars. However, there is currently no effective means to solve the battery endurance problem, and research on making full use of the energy in the battery pack to increase the endurance has become crucial. Currently, in cold winters, recycling the waste heat generated during motor operation to warm the passenger compartment is more energy-efficient than using the electrical energy in the battery pack to warm the passenger compartment, which has been verified in passenger cars.

[0003] However, the difference between a battery-swapping heavy truck and a passenger car is that the battery pack of the battery-swapping heavy truck is relatively independent. For example, in a heavy truck using battery swapping, its battery pack is exposed at the rear of the cab and is more easily affected by the external low-temperature environment, resulting in poor utilization of the battery power. That is to say, when the battery itself is used in a low-temperature environment, there is also a need for heating and insulation, which poses higher requirements for the rational utilization of motor waste heat.

[0004] On the other hand, the motor needs to be connected to the vehicle's heat dissipation device to dissipate the generated heat during normal driving. The existing cooling system is always connected to the radiator, and most of the heat is dissipated into the air during the waste heat recovery process. That is to say, the existing technology does not make full use of the motor waste heat. Especially after starting a battery-swapping heavy truck in winter, since the whole vehicle thermal management system of the existing heavy truck starts the water pump to circulate as soon as it is powered on and the water circuit passes through the radiator, it means that most of the heat generated by the motor and others is dissipated by the radiator, resulting in a delay in raising the temperature of the passenger compartment. Summary of the Invention

[0005] The present invention provides a thermal management system and method for a battery-swapping heavy truck.

[0006] In a first aspect, the present invention provides a thermal management system for a battery-swapping heavy truck, the system comprising:

[0007] A vehicle-end heat source circuit, a radiator, and a first valve group;

[0008] A first interface of the first valve group is connected to an output interface of the vehicle-end heat source circuit, a second interface of the first valve group is connected to an input interface of the radiator, a third interface of the first valve group is connected in parallel with an output interface of the radiator, and the output interface of the radiator is connected to an input interface of the vehicle-end heat source circuit;

[0009] The first valve group is configured to control the flow rate of the cooling water passing through the radiator.

[0010] In one embodiment, a heating component and a cooling water circuit are provided in the vehicle-end heat source circuit, and a heat preservation layer is at least partially provided on the heating component and / or the cooling water circuit.

[0011] In one embodiment, the heat management system for the battery swapping heavy truck further includes: a cockpit warm air circuit, a second valve group, and a battery swapping battery heat management system;

[0012] The first interface of the second valve group is connected to the output interface of the radiator through the vehicle-end heat source circuit; the second interface of the second valve group is connected to the input interface of the cockpit warm air circuit; the third interface of the second valve group is in parallel with the output interface of the cockpit warm air circuit, and the output interface of the cockpit warm air circuit is connected to the input interface of the vehicle-end heat source circuit;

[0013] The second valve group is used to control whether the cooling water passes through the cockpit warm air circuit.

[0014] In one embodiment, the heat management system for the battery swapping heavy truck further includes a third valve group;

[0015] The first interface of the third valve group is connected to the output interface of the cockpit warm air circuit, the second interface of the third valve group is connected to the input interface of the heat management system for the battery swapping heavy truck, the third interface of the third valve group is in parallel with the first interface of the first valve group, and the output interface of the heat management system for the battery swapping heavy truck is connected to the first interface of the first valve group;

[0016] The third valve group is used to control whether the cooling water passes through the heat management system for the battery swapping heavy truck.

[0017] In one embodiment, the heat management system for the battery swapping heavy truck further includes: a refrigeration module, a waterway heater, a fourth valve group, and a fifth valve group;

[0018] The first interface of the fourth valve group is connected to the input interface of the radiator through the first valve group, the second interface of the fourth valve group is connected to the output interface of the vehicle-end heat source circuit, and the third interface of the fourth valve group is connected to the first interface of the fifth valve group;

[0019] The input interface of the waterway heater is connected to the first interface of the fifth valve group, and the output interface of the waterway heater is connected to the first interface of the third valve group;

[0020] The second interface of the fifth valve group is connected to the output interface of the refrigeration module, the third interface of the fifth valve group is connected to the third interface of the fourth valve group, and the input interface of the refrigeration module is connected to the first interface of the second valve group;

[0021] The fourth valve group and the fifth valve group are used to coordinately control whether the cooling water passes through the water heater or the refrigeration module.

[0022] In one embodiment, the heat management system of the battery-swapping heavy truck further includes: a quick-change connector. The second interface of the third valve group is connected to the battery-swapping battery heat management system through the input interface of the quick-change connector, and is connected to the first interface of the second valve group through the output interface of the quick-change connector with the battery-swapping battery heat management system.

[0023] In one embodiment, the heat management system of the battery-swapping heavy truck further includes: a liquid-liquid heat exchanger. The input interface of the quick-change connector is connected to the second interface of the third valve group through the liquid-liquid heat exchanger, and the output interface of the quick-change connector is connected to the first interface of the first valve group through the liquid-liquid heat exchanger.

[0024] In one embodiment, the heat management system of the battery-swapping heavy truck further includes: a first water pump and a water tank. The output interface of the first water pump is connected to the input interface of the vehicle-end heat source circuit, and the input interface of the first water pump is respectively connected to the output interface of the cockpit heating circuit, the output interface of the radiator, and the second interface of the first valve group;

[0025] The water tank is respectively connected to the output interface of the radiator and the second interface of the first valve group.

[0026] In one embodiment, the cockpit heating circuit includes a gas-liquid heat exchanger. The first interface of the gas-liquid heat exchanger is connected to the second interface of the second valve group, and the second interface of the gas-liquid heat exchanger is connected to the first interface of the first valve group.

[0027] In a second aspect, the present invention provides a heat management method for a battery-swapping battery pack, including:

[0028] The cockpit heating circuit includes a gas-liquid heat exchanger. The first interface of the gas-liquid heat exchanger is connected to the second interface of the second valve group, and the second interface of the gas-liquid heat exchanger is connected to the first interface of the first valve group.

[0029] For the heat management system and method of the battery-swapping heavy truck provided by the embodiments of the present invention, the first valve group controls whether the cooling water passes through the radiator, and the water circuit can effectively utilize the vehicle-end waste heat of the vehicle-end heat source circuit to heat up as quickly as possible, first heat the cockpit, and then flow through the heat exchanger to heat the battery, improving the waste heat utilization efficiency. Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic structural diagram of the battery swapping heavy truck thermal management system provided by the embodiment of the present application;

[0032] Figure 2 It is another schematic structural diagram of the battery swapping heavy truck thermal management system provided by the embodiment of the present application;

[0033] Figure 3 It is a schematic structural diagram of the battery swapping heavy truck thermal management system provided by the embodiment of the present application. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0038] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0039] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0040] This embodiment provides a heat management system for a battery-swapping heavy truck.

[0041] Participate Figure 1 The heat management system 100 for the battery-swapping heavy truck includes: a vehicle-end heat source circuit 101, a radiator 102, and a first valve group 103; the first interface of the first valve group 103 is connected to the output interface of the vehicle-end heat source circuit 101, the second interface of the first valve group 103 is connected to the input interface of the radiator 102, the third interface of the first valve group 103 is in parallel with the output interface of the radiator 102, and the output interface of the radiator 102 is connected to the input interface of the vehicle-end heat source circuit 101; the first valve group 103 is used to control the flow rate of the cooling water passing through the radiator 102, and the functions of the first valve group 103 include completely closing the cooling water passing through the radiator or allowing all the cooling water to flow through the radiator.

[0042] In this way, whether the cooling water passes through the radiator is controlled by the first valve group, and the water circuit can effectively utilize the vehicle-end waste heat of the vehicle-end heat source circuit to heat up as quickly as possible, first heating the cab, and then flowing through the heat exchanger to heat the battery, improving the waste heat utilization efficiency.

[0043] In an embodiment, the second interface of the first valve group 103 is closed and the third interface is opened, then the cooling water bypasses the radiator 102 and directly enters the vehicle-end heat source circuit 101. If the second interface of the first valve group 103 is opened, part or all of the cooling water enters the radiator 102 and enters the vehicle-end heat source circuit 101 after flowing through the radiator 102.

[0044] In an application scenario, for example, when the vehicle is just started in winter and the water temperature is low and does not need to flow through the radiator (the first valve group controls the cooling water to bypass the radiator), the water circuit can effectively utilize the vehicle-end waste heat of the vehicle-end heat source circuit (the heat dissipated from the motor and its electronic control) to heat up as quickly as possible, first heating the cab, and then flowing through the heat exchanger to heat the battery. After that, if there is still excess heat, it will flow through the radiator for heat dissipation.

[0045] In an embodiment, a heating component and a cooling water circuit are provided in the vehicle-end heat source circuit, and at least part of the heating component and / or the cooling water circuit is provided with a heat insulation layer.

[0046] Exemplarily, the heating component can be a motor and its electronic control, a motor, etc. It should be noted that the purpose of setting the heat insulation layer is to avoid heat dissipation, and some heat insulation foam can be pasted or wrapped on the heating component or the cooling water circuit. Devices other than the radiator can be provided with a heat insulation layer.

[0047] Participate Figure 2 The battery swapping heavy truck thermal management system further includes: a cockpit heating circuit 104, a second valve group 105, and a battery swapping battery thermal management system 106;

[0048] The first interface of the second valve group 105 is connected to the output interface of the radiator 102 through the vehicle-end heat source circuit 101; the second interface of the second valve group 105 is connected to the input interface of the cockpit heating circuit 104; the third interface of the second valve group 105 is in parallel with the output interface of the cockpit heating circuit 104, and the output interface of the cockpit heating circuit 104 is connected to the input interface of the vehicle-end heat source circuit 101;

[0049] The second valve group 105 is used to control whether the cooling water passes through the cockpit heating circuit 104.

[0050] In Figure 2 If the second interface of the second valve group 105 is closed and the third interface is open, the cooling water bypasses the cockpit heating circuit 104 and directly enters the vehicle-end heat source circuit 101. If the second interface of the second valve group 105 is open, the cooling water partially or completely enters the gas-liquid heat exchanger 1041, which is arranged on the cockpit heating circuit 104, so that the cooling water partially or completely flows through the cockpit heating circuit 104, and the cooling water can exchange the excess heat to the cockpit heating circuit 104.

[0051] Please participate again Figure 2 The battery swapping heavy truck thermal management system further includes a third valve group 107; the first interface of the third valve group 107 is connected to the output interface of the cockpit heating circuit 104, the second interface of the third valve group 107 is connected to the input interface of the battery swapping heavy truck thermal management system 106, the third interface of the third valve group 107 is in parallel with the first interface of the first valve group 103, and the output interface of the battery swapping heavy truck thermal management system 106 is connected to the first interface of the first valve group; the third valve group is used to control whether the cooling water passes through the battery swapping heavy truck thermal management system.

[0052] In an embodiment, if the third interface of the third valve group 105 is closed and the second interface is open, the cooling water flows through the liquid-liquid heat exchanger 1013 and enters the battery swapping battery thermal management system 106. If the third interface of the third valve group 107 is open and the second interface is closed, the cooling water partially bypasses the liquid-liquid heat exchanger 1013 and flows into the first valve group 103.

[0053] In Figure 2 The input interface of the water heater 109 is connected to the second interface of the second valve group 105, and the output interface of the water heater 109 is connected to the input interface of the cockpit heating circuit 104.

[0054] In an application scenario, for example, when the heat of the vehicle-end heat source is insufficient, the waterway heater 109 is started: in winter, the waterway is first heated by the waterway heater and then used to heat the cockpit, and then flows through the heat exchanger to heat the battery. In this scenario, the first valve group 103 controls the cooling water to bypass the radiator, and the cooling water does not need to dissipate heat. For example, in summer when the cockpit and the battery do not need to be heated, the waterway heater 109 does not work, and there is no utilization of the waste heat of the vehicle-end heat source, that is, the first valve group controls the cooling water to bypass the radiator.

[0055] Please participate again Figure 2 , the heat management system of the battery-swapping heavy truck further includes: a liquid-liquid heat exchanger 1013, the input interface of the quick-change connector 1012 is connected to the second interface of the third valve group 107 through the liquid-liquid heat exchanger 1013, and the output interface of the quick-change connector 1012 is connected to the first interface of the first valve group 103 through the liquid-liquid heat exchanger 1013.

[0056] Participate Figure 3 , the heat management system 100 of the battery-swapping heavy truck further includes: a refrigeration module 108, a waterway heater 109, a fourth valve group 1010, and a fifth valve group 1011;

[0057] The first interface of the fourth valve group 1010 is connected to the input interface of the radiator 102 through the first valve group 103, the second interface of the fourth valve group 1010 is connected to the output interface of the vehicle-end heat source circuit 101, and the third interface of the fourth valve group 1010 is connected to the first interface of the fifth valve group 1011;

[0058] The input interface of the waterway heater 109 is connected to the first interface of the fifth valve group 1011, and the output interface of the waterway heater 109 is connected to the first interface of the third valve group 107;

[0059] The second interface of the fifth valve group 1011 is connected to the output interface of the refrigeration module 108, the third interface of the fifth valve group 1011 is connected to the third interface of the fourth valve group 1010, and the input interface of the refrigeration module is connected to the first interface of the second valve group 105;

[0060] The fourth valve group 1010 and the fifth valve group 1011 are used to coordinately control whether the cooling water passes through the waterway heater 109 or the refrigeration module 108.

[0061] In one embodiment, the third interface of the fourth valve group 1010 is opened, the second interface of the fifth valve group 1011 is opened, the first interface of the fifth valve group 1011 is closed, and part or all of the cooling water passes through the refrigeration module 108. The second water pump 1016 is used to accelerate the flow of the cooling water in the refrigeration module 108.

[0062] In another embodiment, the third interface of the fourth valve group 1010 is opened, the second interface of the fifth valve group 1011 is closed, the first interface of the fifth valve group 1011 is opened, and part or all of the cooling water passes through the waterway heater 109.

[0063] In this way, part or all of the cooling water can be coordinately controlled by the fourth valve group 1010 and the fifth valve group 1011 to flow through the waterway heater 109 for heating, and part or all of the cooling water can be coordinately controlled by the fourth valve group 1010 and the fifth valve group 1011 to flow through the refrigeration module 108 for refrigeration.

[0064] Please participate again Figure 3 , the heat management system 100 of the battery-swap heavy truck further includes: a quick-change connector 1012. The second interface of the third valve group 107 is connected to the battery-swap battery heat management system 106 through the input interface of the quick-change connector 1012, and the battery-swap battery heat management system 106 is connected to the first interface of the second valve group 105 through the output interface of the quick-change connector 1012.

[0065] In this embodiment, the quick-change connector 1012 can achieve the rapid exchange of the cooling water between two different circuits.

[0066] Please refer to again Figure 3 , the heat management system of the battery-swap heavy truck further includes: a first water pump 1014 and a water tank 1015. The output interface of the first water pump 1014 is connected to the input interface of the vehicle-end heat source circuit 101, and the input interface of the first water pump 1014 is respectively connected to the output interface of the cockpit warm air circuit, the output interface of the radiator 102, and the second interface of the first valve group 103;

[0067] The water tank 1015 is respectively connected to the output interface of the radiator 102 and the second interface of the first valve group 103.

[0068] In this embodiment, the first water pump 1014 can increase the flow rate of the cooling water in the vehicle-end heat source circuit 101 and improve the heat management effect. The water tank 1015 is used to store the cooling water for heat management in the circuit.

[0069] Please refer to again Figure 3, the cockpit warm air circuit 104 includes a gas-liquid heat exchanger 1041. The first interface of the gas-liquid heat exchanger 1041 is connected to the second interface of the second valve group 105, and the second interface of the gas-liquid heat exchanger 1041 is connected to the first interface of the first valve group 103.

[0070] In one embodiment, the gas-liquid heat exchanger 1041 inputs hot air into the cockpit warm air circuit 104 to achieve thermal management of the cockpit warm air circuit 104.

[0071] In an application scenario, for example, in the scenario where the cockpit and the battery swapping battery pack do not need to be heated in summer, at this time, the cockpit warm air circuit and the vehicle-end heat source circuit of the battery swapping battery thermal management system operate independently, and the cockpit is cooled by the air conditioner, and there is no waste heat utilization of the vehicle-end heat source.

[0072] This embodiment provides a thermal management method for a battery swapping heavy truck. The thermal management method for the battery swapping heavy truck is applied to the battery swapping heavy truck thermal management system provided in the above embodiment. The thermal management method for the battery swapping heavy truck includes:

[0073] Control the second interface of the first valve group to be closed and the third interface to be opened, so that the cooling water bypasses the radiator and flows into the vehicle-end heat source circuit.

[0074] The thermal management method for the battery swapping heavy truck provided in this embodiment can achieve the corresponding functions of the battery swapping heavy truck thermal management system provided in the above embodiment. To avoid repetition, it will not be elaborated here.

[0075] The thermal management method for the battery swapping heavy truck provided in this embodiment is controlled by the first valve group whether the cooling water passes through the radiator. The water circuit can effectively utilize the vehicle-end waste heat of the vehicle-end heat source circuit to heat up as quickly as possible, first heat the cockpit, and then flow through the heat exchanger to heat the battery, improving the waste heat utilization efficiency.

[0076] As mentioned above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A heat management system for a battery-swap heavy truck, characterized in that, The heat management system of the battery-swap heavy truck includes: a vehicle-end heat source circuit, a radiator, and a first valve group; The first interface of the first valve group is connected to the output interface of the vehicle-end heat source circuit, the second interface of the first valve group is connected to the input interface of the radiator, the third interface of the first valve group is in parallel with the output interface of the radiator, and the output interface of the radiator is connected to the input interface of the vehicle-end heat source circuit; The first valve group is used to control the flow rate of the cooling water passing through the radiator.

2. The battery swapping heavy truck thermal management system according to claim 1, wherein A heating component and a cooling water circuit are provided in the vehicle-end heat source circuit, and at least part of the heating component and / or the cooling water circuit is provided with a heat insulation layer.

3. The battery swapping heavy truck thermal management system according to claim 1, wherein, The heat management system of the battery-swap heavy truck further includes: a cab heating circuit, a second valve group, and a battery-swap battery heat management system; The first interface of the second valve group is connected to the output interface of the radiator through the vehicle-end heat source circuit; the second interface of the second valve group is connected to the input interface of the cab heating circuit; the third interface of the second valve group is in parallel with the output interface of the cab heating circuit, and the output interface of the cab heating circuit is connected to the input interface of the vehicle-end heat source circuit; The second valve group is used to control whether the cooling water passes through the cab heating circuit.

4. The battery swapping heavy truck thermal management system according to claim 3, characterized in that, The heat management system of the battery-swap heavy truck further includes a third valve group; The first interface of the third valve group is connected to the output interface of the cab heating circuit, the second interface of the third valve group is connected to the input interface of the heat management system of the battery-swap heavy truck, the third interface of the third valve group is in parallel with the first interface of the first valve group, and the output interface of the heat management system of the battery-swap heavy truck is connected to the first interface of the first valve group; The third valve group is used to control whether the cooling water passes through the heat management system of the battery-swap heavy truck.

5. The battery swapping heavy truck thermal management system according to claim 4, characterized in that, The heat management system of the battery-swap heavy truck further includes: a refrigeration module, a water heater, a fourth valve group, and a fifth valve group; The first interface of the fourth valve group is connected to the input interface of the radiator through the first valve group, the second interface of the fourth valve group is connected to the output interface of the vehicle-end heat source circuit, and the third interface of the fourth valve group is connected to the first interface of the fifth valve group; The input interface of the water heater is connected to the first interface of the fifth valve group, and the output interface of the water heater is connected to the first interface of the third valve group; The second interface of the fifth valve group is connected to the output interface of the refrigeration module, the third interface of the fifth valve group is connected to the third interface of the fourth valve group, and the input interface of the refrigeration module is connected to the first interface of the second valve group; The fourth valve group and the fifth valve group are used to coordinately control whether the cooling water passes through the water heater or the refrigeration module.

6. The battery swapping heavy truck thermal management system according to claim 5, wherein The heat management system of the battery-swap heavy truck further includes: a quick-change connector. The second interface of the third valve group is connected to the battery-swap battery heat management system through the input interface of the quick-change connector, and is connected to the first interface of the second valve group through the output interface of the quick-change connector with the battery-swap battery heat management system.

7. The battery swapping heavy truck thermal management system according to claim 5, wherein, The heat management system of the battery-swap heavy truck further includes: a liquid-liquid heat exchanger, an input interface of the quick-change connector is connected to a second interface of the third valve group through the liquid-liquid heat exchanger, and an output interface of the quick-change connector is connected to a first interface of the first valve group through the liquid-liquid heat exchanger.

8. The battery swapping heavy truck thermal management system according to claim 6 or 7, characterized in that, The heat management system of the battery-swap heavy truck further includes: a first water pump and a water tank, an output interface of the first water pump is connected to an input interface of the vehicle-end heat source circuit, and an input interface of the first water pump is respectively connected to an output interface of the cockpit heating circuit, an output interface of the radiator, and a second interface of the first valve group; The water tank is respectively connected to an output interface of the radiator and a second interface of the first valve group.

9. The battery swapping heavy truck thermal management system according to claim 8, wherein The cockpit heating circuit includes a gas-liquid heat exchanger, a first interface of the gas-liquid heat exchanger is connected to a second interface of the second valve group, and a second interface of the gas-liquid heat exchanger is connected to a first interface of the first valve group.

10. A heat management method for a battery-swap heavy truck, characterized in that, Applied to the heat management system of the battery-swap heavy truck according to any one of claims 1-9, the heat management method of the battery-swap heavy truck includes: Controlling the second interface of the first valve group to be closed and the third interface to be opened, so that the cooling water bypasses the radiator and flows into the vehicle-end heat source circuit.

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