Warm air control system suitable for new energy vehicle type waste heat utilization and new energy vehicle

Abstract

According to the warm air control system suitable for new energy vehicle type waste heat utilization and the new energy vehicle, the waste heat controller is arranged to be coordinated with the warm air control device, and waste heat of the heat dissipation component is conveyed to warm air in the vehicle through a water way at a proper time by setting a waste heat utilization program; and meanwhile, according to the actual water temperature state, heat is supplemented through the liquid fuel oil heater or the PTC electric heater. Waste heat of the heat dissipation component is reasonably utilized, and electric energy consumed by the vehicle for obtaining heat is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a warm air control system suitable for utilizing waste heat of new energy vehicles and a new energy vehicle. Background Art

[0002] Currently, the thermal management systems commonly used in the new energy bus industry are primarily based on heating and cooling air conditioning. While these systems can meet basic needs in normal climates, their heating performance is less than ideal in cold climates, requiring traditional heating systems to compensate. Generating sufficient heat to maintain a comfortable cabin temperature often requires significant electrical energy consumption, significantly increasing vehicle energy consumption and significantly reducing the range of new energy buses. Especially in cold winter conditions, frequent use of the heating system can significantly reduce the vehicle's range, impacting its normal use and operational efficiency.

[0003] In actual operation, many components of new energy buses generate a large amount of heat during operation. For example, the motor, motor controller, and hydrogen fuel cell all face the need to dissipate heat when in operation. If these components cannot operate at an appropriate temperature, their performance will be greatly reduced, which in turn affects the vehicle's range. On the other hand, in winter, to ensure passenger comfort, cabin heating becomes a necessity. This requires the use of dedicated heaters, which also has a significant impact on the range of new energy buses. On the one hand, there is the need for heat dissipation, and on the other hand, there is the need for heating. How to effectively integrate and coordinate the two has become a key issue that needs to be solved urgently. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a heating control system and a new energy vehicle suitable for utilizing waste heat of new energy vehicles, which overcome the above problems or at least partially solve the above problems.

[0005] The present invention provides a heating control system suitable for utilizing waste heat of new energy vehicles, the system comprising: a waste heat controller and a heating control device;

[0006] The heating control device is provided with an electronic water pump, a heater, a heating controller, and a plurality of radiators arranged inside the new energy vehicle and controlled by the heating controller. The heater is connected to the plurality of radiators, which are connected in parallel or in series and are connected to a water circulation device.

[0007] The waste heat controller is communicatively connected with the warm air controller and is used to send a control instruction to the warm air controller on whether to execute the waste heat program; when the warm air controller receives the control instruction to execute the waste heat program, it adaptively adjusts the operating power of the heater by detecting the water temperature at the radiator outlet of the warm air control device, and ensures that the water temperature at the radiator outlet is not higher than the applicable operating water temperature of the waste heat source.

[0008] Optionally, the heater controller is used to obtain the outside temperature of the vehicle, and when the outside temperature is lower than a first set temperature, send a query instruction to the residual heat controller asking whether to execute the residual heat program; or

[0009] The heater controller is used to obtain the outside temperature and the inside temperature of the vehicle, and when the outside temperature is lower than a first set temperature and the inside temperature is lower than a second set temperature, sends an inquiry instruction to the residual heat controller asking whether to execute the residual heat program; the first set temperature is lower than the second set temperature.

[0010] Optionally, the residual heat controller is provided with a first execution condition for executing the residual heat program, so that when it is detected that the vehicle state meets the first execution condition, the controller returns a control instruction for executing the residual heat program to the heater controller in response to the query instruction sent by the heater controller;

[0011] The first execution condition includes: the water temperature at the outlet of the waste heat source is greater than the water temperature at the outlet of the radiator, and the value by which the target set temperature exceeds the vehicle interior temperature is less than or equal to a first set difference;

[0012] The waste heat source includes a motor and electronic control, a battery or a hydrogen stack.

[0013] Optionally, the water circulation device includes a heat dissipation water tank; the inlet end of the heat dissipation water tank, the water circulation outlet end of the waste heat source and the water circulation inlet end of the warm air control device are simultaneously connected to a three-way proportional valve;

[0014] A first three-way pipe fitting is also provided between the three-way proportional valve and the water circulation inlet end of the warm air control device, and a second three-way pipe fitting is provided between the water circulation outlet end of the warm air control device and the water circulation inlet end of the waste heat source; an electromagnetic on-off valve is provided between the first three-way pipe fitting and the second three-way pipe fitting, and the electromagnetic on-off valve and the three-way proportional valve are both controlled by the waste heat controller.

[0015] Optionally, when the residual heat controller determines that the vehicle state satisfies the first execution condition, the three-way proportional valve is opened, and the electronic water pump is turned on through the heater controller; or, the three-way proportional valve is opened, and the electronic water pump and the heater are turned on in sequence through the heater controller, so that the residual heat controller and the heater control device form a residual heat utilization loop;

[0016] When the temperature inside the vehicle exceeds the target set temperature by more than a second set difference, the radiator is controlled to stop working;

[0017] When the temperature inside the vehicle is less than or equal to the target set temperature, the radiator is controlled to operate at a low speed.

[0018] Optionally, the residual heat controller is provided with a second execution condition for not executing the residual heat program, so that when it is determined that the vehicle state meets the second execution condition, the controller returns a control instruction for not executing the residual heat program to the heater controller in response to the query instruction sent by the heater controller;

[0019] The second execution condition includes: the water temperature at the outlet of the waste heat source is less than or equal to the water temperature at the outlet of the radiator, or the target set temperature exceeds the vehicle interior temperature by a value greater than a first set difference.

[0020] Optionally, when the residual heat controller determines that the vehicle state meets the second execution condition, the three-way proportional valve is closed, and the electronic water pump and the heater are sequentially turned on through the heater controller, so that the heater control device forms an independent heater circuit;

[0021] When the temperature inside the vehicle exceeds the target set temperature by more than a second set difference, the radiator is controlled to stop working;

[0022] When the value by which the vehicle interior temperature exceeds the target set temperature is less than or equal to the second set difference, and the value by which the target set temperature exceeds the vehicle interior temperature is less than or equal to the second set difference, controlling the radiator to operate at a low speed;

[0023] When the target set temperature exceeds the vehicle interior temperature by a value greater than a second set difference, the radiator is controlled to operate at a high speed.

[0024] Optionally, when receiving a control instruction to turn on heating or to turn on defrosting, the warm air controller sends a query instruction to the residual heat controller asking whether to execute a residual heat program.

[0025] Optionally, when the heater controller receives a control instruction to turn off the heater or defrost, it obtains the outside temperature of the vehicle, and then determines whether to turn off the heater, turn off the radiator, and turn off the electronic water pump after a set time based on the outside temperature.

[0026] According to another aspect of the present invention, a new energy vehicle is provided, which is provided with any of the above-mentioned heating control systems suitable for utilizing waste heat of new energy vehicles.

[0027] The present invention provides a heating control system and a new energy vehicle for utilizing waste heat from new energy vehicles. By providing a waste heat controller to coordinate with the heating control device and setting a waste heat utilization program, waste heat from the heat dissipation components is transferred to the vehicle interior heating system via a water channel at the appropriate time. Simultaneously, heat is supplemented by a liquid fuel heater or a PTC electric heater based on the actual water temperature. This rational utilization of waste heat from the heat dissipation components reduces the amount of electrical energy consumed by the vehicle to generate heat, particularly during cold winter months, which can reduce the impact of heating on the vehicle's range.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 A schematic diagram of a heating control system for utilizing waste heat from new energy vehicles according to an embodiment of the present invention is shown;

[0032] Figure 2 A schematic diagram of a heating process of turning on heating by a heating controller according to an embodiment of the present invention is shown;

[0033] Figure 3 A schematic diagram of a defrosting operation process of a heater controller according to an embodiment of the present invention is shown;

[0034] Figure 4 A schematic diagram of a heating controller shutting down heating is shown in an embodiment of the present invention;

[0035] Figure 5 A schematic diagram of a heating controller closing defrost operation process according to an embodiment of the present invention is shown;

[0036] Figure 6 A schematic diagram showing a detailed workflow of turning on the heating by the heating controller according to an embodiment of the present invention is shown;

[0037] Among them, 10-waste heat controller, 20-warm air controller, 21-electronic water pump, 22-heater, 23-warm air radiator, 24-defroster, 25-driver radiator, 26-water temperature sensor at the radiator water circulation outlet, 30-waste heat source, 31-water temperature sensor at the waste heat source outlet, 40-heating water tank, 41-three-way proportional valve, 42-first three-way pipe fitting, 43-second three-way pipe fitting, 44-electromagnetic on-off valve, 45-heat exchanger. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] The embodiment of the present invention provides a heating control system suitable for utilizing waste heat of new energy vehicles. The heating control system includes: a waste heat controller 10 and a heating control device. Figure 1 The heater control device includes an electronic water pump 21, a heater 22, a heater controller 20, and multiple radiators located within the new energy vehicle and controlled by the heater controller 20. The heater 22 is connected to multiple radiators, which are connected in parallel or in series and are connected to a water circulation device. In this embodiment, the radiators can be located within the vehicle, including a driver radiator 25 and multiple heater radiators 23. Furthermore, the heater 22 can be connected to a defroster 24.

[0040] The waste heat controller 10 is communicatively connected to the heater controller 20 and communication is achieved via the CAN bus. The waste heat controller 10 is used to send a control instruction to the heater controller 20 on whether to execute the waste heat program. When the heater controller 20 receives the control instruction to execute the waste heat program, it adaptively adjusts the operating power of the heater 22 by detecting the water temperature at the radiator outlet of the heater control device, and ensures that the water temperature at the radiator outlet is not higher than the applicable operating water temperature of the waste heat source 30.

[0041] This embodiment of the heating control system for waste heat utilization in new energy vehicles utilizes a waste heat utilization program to transfer waste heat from the heat dissipation components to the vehicle interior through a water channel at appropriate times. Simultaneously, heater 22 (a liquid fuel heater or a PTC electric heater) provides additional heat based on the actual water temperature. This rationally utilizes waste heat from the heat dissipation components, reducing the amount of electrical energy consumed by the vehicle to generate heat.

[0042] In an optional embodiment of the present invention, Figure 2As shown, heater controller 20 is used to obtain the outside temperature T outside . When the outside temperature T outside is less than a first set temperature, it sends a query to residual heat controller 10 asking whether to execute the residual heat program. When the outside temperature is greater than or equal to the first temperature, heater controller 20 does not operate. Optionally, the first set temperature can be 18°C.

[0043] In practical applications, the heater controller 20 may obtain the outside temperature T when receiving a control instruction to turn on the heater or turn on the defrost. 车外 , and then determine whether to send a query instruction to the residual heat controller 10 to inquire whether to execute the residual heat program according to the vehicle outside temperature. That is, when it is determined that the user has a heating demand, the judgment of whether to execute the residual heat is performed.

[0044] In some cases, such as in heating mode, it may be necessary to determine whether to execute residual heat in combination with the temperature inside the vehicle and the temperature outside the vehicle. That is, in addition to the above, the heater controller 20 can also be used to obtain the outside temperature T 车外 and the interior temperature T 车内 , at the outside temperature T 车外 When the temperature outside the vehicle is lower than the first set temperature and the interior temperature is lower than the second set temperature, a query instruction is sent to the residual heat controller 10 to inquire whether to execute the residual heat program; the first set temperature is lower than the second set temperature. That is, when inquiring the residual heat controller 10 whether to execute the residual heat program, in addition to meeting the external temperature condition, the interior temperature condition also needs to be met, that is, the interior temperature T 车内 Only when the temperature is lower than the second set temperature will the heater controller 20 send a query command to the residual heat controller 10, avoiding wasting resources when the vehicle interior temperature meets the user's requirements. Optionally, the first set temperature can be 18°C ​​and the second set temperature can be 25°C. In actual applications, the first and second set temperatures can be adaptively determined based on different times and locations, or they can be learned from vehicle user habits and historical vehicle data. This embodiment does not limit this.

[0045] After the heater controller 20 sends a query command to the residual heat control unit, the residual heat controller 10 is required to respond. In this embodiment, the residual heat controller 10 is provided with a first execution condition for executing the residual heat program. When the vehicle state meets the first execution condition, the residual heat controller 10 responds to the query command sent by the heater controller 20 and returns a control instruction to execute the residual heat program to the heater controller 20. The first execution condition includes: the outlet water temperature of the residual heat source 30 is greater than the outlet water temperature of the radiator, and the target set temperature exceeds the vehicle interior temperature by a value less than or equal to a first set difference. Optionally, the residual heat source 30 includes an electric motor, a battery, or a hydrogen stack.

[0046] Combine Figures 1 to 6In this embodiment, the waste heat source 30 is taken as an example of a motor-controlled waste heat source. A water temperature sensor 31 is provided at the outlet of the waste heat source 30. The water temperature sensor 31 at the outlet of the waste heat source 30 can detect the outlet water temperature T020 of the waste heat source 30. A water temperature sensor 26 is provided at the outlet of the radiator water circulation. The water temperature sensor 26 at the outlet of the radiator water circulation can detect the radiator outlet water temperature T310 at the outlet of the radiator water circulation. Only when "waste heat source outlet water temperature T020> radiator outlet water temperature T310" and "target setting temperature T 设定 -Inside temperature T 车内 ≤ the first set value", the waste heat utilization program will be activated. Optionally, the first set value can be 8°C or other values.

[0047] Continue to see Figure 1 The water circulation device includes a heat dissipation water tank 40; the inlet end of the heat dissipation water tank 40, the water circulation outlet end of the waste heat source 30 and the water circulation inlet end of the warm air control device are all connected to a three-way proportional valve 41; a first three-way pipe fitting 42 is also provided between the three-way proportional valve 41 and the water circulation inlet end of the warm air control device, and a second three-way pipe fitting 43 is provided between the water circulation outlet end of the warm air control device and the water circulation inlet end of the waste heat source 30; an electromagnetic on-off valve 44 is provided between the first three-way pipe fitting 42 and the second three-way pipe fitting 43, and the electromagnetic on-off valve 44 and the three-way proportional valve 41 are both controlled by the waste heat controller 10.

[0048] When the residual heat controller 10 determines that the vehicle state meets the first execution condition, it opens the three-way proportional valve 41, and sequentially turns on the electronic water pump 21 and the heater 22 through the heater controller 20, so that the residual heat controller 10 and the heater control device form a residual heat utilization loop. In this case, the heater 22 works, for example Figure 2 、 Figure 6 The warm air mode shown, Figure 3 The defrost mode shown is shown in the figure. That is to say, as long as there is a need for heating or defrosting, the heater is turned on. The heater starts and stops automatically according to the set temperature value inside it. For example, in the mode of not executing the residual heat program, the restart temperature is: the heater stops when the water outlet temperature is 90℃ and resumes at 65℃; in the mode of executing the residual heat program, the heater stops when the water outlet temperature is 60℃ and resumes at 42℃. The specific temperature value needs to be obtained through experiments, please refer to Figure 6 The heater start and stop temperature (depending on the situation).

[0049] Specifically, when the waste heat utilization loop is working, when the temperature inside the vehicle exceeds the target set temperature by more than the second set difference, the radiator is controlled to stop working; when the temperature inside the vehicle is less than or equal to the target set temperature, the radiator is controlled to run at a low speed. For example, if the "temperature inside the vehicle T 车内 >Target setting temperature T设定 +2℃”, all radiators stop working; when the “interior temperature T 车内 When the target set temperature T is less than or equal to the target set temperature, all radiators will run at low speed and perform real-time cycle judgment. When the residual heat program is executed, the radiator will run at low speed because the water temperature is not high. If the radiator is used at high speed and the wind speed is high, it will have the effect of blowing cold air. The target set temperature can be the in-vehicle temperature value set by the driver, which can be set specifically through the human-computer interaction panel.

[0050] It should be noted that if Figure 6 As shown, when the waste heat controller 10 determines that the waste heat utilization program needs to be executed, it can delay the heater's activation after turning on the electronic water pump. The heater's start and stop temperatures can be adjusted based on specific circumstances. The heater's water inlet temperature can range from 42°C to 50°C. At this point, the heater's power must match the radiator outlet water temperature (T310) to less than 42°C. The T310 temperature is determined based on the motor's high-temperature indication and the radiator's cold air threshold. For example, if it exceeds 60°C, the motor's electronic control system will indicate a high-temperature fault. Therefore, the radiator's outlet water temperature must be below 60°C. The 42-50°C value is based on an ambient temperature of 15-25°C, with the radiator's air temperature at 35-37°C, close to body temperature. If the heater's water inlet temperature is 42°C, T310 is also 42°C. This ensures that the heat supplied by the heater is dissipated by the radiator, resulting in the most energy-efficient solution.

[0051] On the other hand, the waste heat controller 10 is provided with a second execution condition for not executing the waste heat program. When it is determined that the vehicle state meets the second execution condition, the waste heat controller 10 responds to the query instruction sent by the heater controller 20 and returns a control instruction for not executing the waste heat program to the heater controller 20. The second execution condition includes: the outlet water temperature of the waste heat source 30 is less than or equal to the outlet water temperature of the radiator, or the target set temperature exceeds the vehicle interior temperature by a value greater than the first set difference. That is, when the outlet water temperature T020 of the waste heat source 30 is less than or equal to the outlet water temperature T310 of the radiator, or the "target set temperature T 目标 -Inside temperature T 车内 >First set value".

[0052] When the residual heat controller 10 determines that the vehicle state meets the second execution condition, it closes the three-way proportional valve 41 and sequentially turns on the electronic water pump 21 and the heater 22 through the heater controller 20, so that the heater control device forms an independent heater circuit.

[0053] In the case of independent heating circuit operation, when the value of the vehicle interior temperature exceeding the target set temperature is greater than the second set difference, the radiator is controlled to stop working; when the value of the vehicle interior temperature exceeding the target set temperature is less than or equal to the second set difference, and the value of the target set temperature exceeding the vehicle interior temperature is less than or equal to the second set difference, the radiator is controlled to operate at low speed; when the value of the target set temperature exceeding the vehicle interior temperature is greater than the second set difference, the radiator is controlled to operate at high speed. That is, when the "vehicle interior temperature T 车内 >Target setting temperature T 设定 +2℃”, all radiators stop working; when the “target setting temperature T 设定 -2℃≤Interior temperature T 车内 ≤T 设定 +2℃”, all radiators run at low speed; when “the temperature inside the car is T 车内 When the target set temperature Tset is less than -2°C, all radiators will operate at high speed and perform real-time cycle judgment. In actual operation, the radiator fan has two speed gears: high and low. In this embodiment, the high and low speed requirements for the radiator are as follows: air volume 60% (low speed) and 100% (high speed); noise ≤ 55dB (A) (low speed) and noise ≤ 65dB (A) (high speed). The high and low speed gears of the radiator can be designed based on the above requirements.

[0054] When the waste heat controller 10 determines that there is no need to execute the waste heat utilization program, after turning on the electronic water pump, the heater and radiator can be turned on with a delay. When the radiator is turned on for the first time, all radiators run at low wind speed for 30 seconds. At this time, the start and stop documents of the heater are adjusted according to actual needs. The water outlet temperature of the heater is 80°C, and its low power is maintained in balance.

[0055] In an optional embodiment of the present invention, Figures 4 and 5 As shown, when the heater controller 20 receives a control command to turn off the heater, it turns off the heater 22, turns off the radiators (including the heater radiator and the driver radiator), and turns off the electronic water pump 21 after a set time (120 seconds). When the heater controller 20 receives a control command to turn off the defrost, it turns off the heater 22, turns off the electronic water pump 21 after 120 seconds, and turns off the defroster 24 after 20 seconds.

[0056] When the heater controller 20 receives the control instruction to turn on the heater, it can inquire whether to execute the residual heat program and the subsequent control process can be automatically executed. Figure 6 As shown, in manual mode, when the waste heat controller determines to execute the waste heat utilization program or determines not to execute the waste heat utilization program, the electronic water pump can be turned on, and the heater and radiator can be controlled to execute according to the switch position.

[0057] The heater controller 20 of the embodiment of the present invention is provided with two sets of control logics, one for no waste heat utilization and the other for waste heat utilization; when the heater controller 20 receives the "no waste heat utilization" instruction, the heater system operates in a normal state; when the heater controller 20 receives the "waste heat utilization" instruction, the heater controller 20 detects the warm air return water temperature and adjusts the operating power of the fuel heater (or PTC electric heater) to ensure that the outlet water temperature is not higher than the applicable operating water temperature of the motor electronic control system.

[0058] An embodiment of the present invention further provides a new energy vehicle, which is provided with the heating control system of the above embodiment suitable for utilizing waste heat of new energy vehicles.

[0059] The functional units in various embodiments of the present invention may be physically independent of each other, or two or more functional units may be integrated together, or all functional units may be integrated into one processing unit. The above-mentioned integrated functional units may be implemented in the form of hardware, software, or firmware.

[0060] Those skilled in the art will understand that if the integrated functional unit is implemented in the form of software and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can essentially or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, which includes a number of instructions for enabling a computing device (such as a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention when running the instructions. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that within the spirit and principles of the present invention, they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate from the scope of protection of the present invention.

Claims

1. A heating control system suitable for waste heat utilization of new energy vehicles, characterized in that: The system includes: a waste heat controller and a warm air control device; The heating control device is provided with an electronic water pump, a heater, a heating controller, and a plurality of radiators arranged inside the new energy vehicle and controlled by the heating controller. The heater is connected to the plurality of radiators, which are connected in parallel or in series and are connected to a water circulation device. The waste heat controller is communicatively connected with the warm air controller and is used to send a control instruction to the warm air controller on whether to execute the waste heat program; when the warm air controller receives the control instruction to execute the waste heat program, it adaptively adjusts the operating power of the heater by detecting the water temperature at the radiator outlet of the warm air control device, and ensures that the water temperature at the radiator outlet is not higher than the applicable operating water temperature of the waste heat source.

2. The warm air control system according to claim 1, characterized in that: The heater controller is used to obtain the outside temperature of the vehicle, and when the outside temperature is lower than a first set temperature, sends a query instruction to the residual heat controller asking whether to execute the residual heat program; or The heater controller is used to obtain the outside temperature and the inside temperature of the vehicle, and when the outside temperature is lower than a first set temperature and the inside temperature is lower than a second set temperature, sends an inquiry instruction to the residual heat controller asking whether to execute the residual heat program; the first set temperature is lower than the second set temperature.

3. The warm air control system according to claim 2, characterized in that: The residual heat controller is provided with a first execution condition for executing the residual heat program, so that when it is detected that the vehicle state meets the first execution condition, the controller returns a control instruction for executing the residual heat program to the heater controller in response to the query instruction sent by the heater controller; The first execution condition includes: the water temperature at the outlet of the waste heat source is greater than the water temperature at the outlet of the radiator, and the value by which the target set temperature exceeds the vehicle interior temperature is less than or equal to a first set difference; The waste heat source includes a motor and electronic control, a battery or a hydrogen stack.

4. The warm air control system according to claim 2, characterized in that: The water circulation device includes a heat dissipation water tank; the inlet end of the heat dissipation water tank, the water circulation outlet end of the waste heat source and the water circulation inlet end of the warm air control device are connected to a three-way proportional valve at the same time; A first three-way pipe fitting is also provided between the three-way proportional valve and the water circulation inlet end of the warm air control device, and a second three-way pipe fitting is provided between the water circulation outlet end of the warm air control device and the water circulation inlet end of the waste heat source; an electromagnetic on-off valve is provided between the first three-way pipe fitting and the second three-way pipe fitting, and the electromagnetic on-off valve and the three-way proportional valve are both controlled by the waste heat controller.

5. The warm air control system according to claim 4, characterized in that: When the residual heat controller determines that the vehicle state satisfies the first execution condition, it opens the three-way proportional valve and activates the electronic water pump via the heater controller; or it opens the three-way proportional valve and sequentially activates the electronic water pump and the heater via the heater controller, so that the residual heat controller and the heater control device form a residual heat utilization loop; When the temperature inside the vehicle exceeds the target set temperature by more than a second set difference, the radiator is controlled to stop working; When the temperature inside the vehicle is less than or equal to the target set temperature, the radiator is controlled to operate at a low speed.

6. The warm air control system according to claim 4, characterized in that: The residual heat controller is provided with a second execution condition for not executing the residual heat program, so that when it is determined that the vehicle state satisfies the second execution condition, the controller returns a control instruction for not executing the residual heat program to the heater controller in response to the query instruction sent by the heater controller; The second execution condition includes: the water temperature at the outlet of the waste heat source is less than or equal to the water temperature at the outlet of the radiator, or the target set temperature exceeds the vehicle interior temperature by a value greater than a first set difference.

7. The warm air control system according to claim 6, characterized in that: When the residual heat controller determines that the vehicle state meets the second execution condition, the three-way proportional valve is closed, and the electronic water pump and the heater are sequentially turned on through the heater controller, so that the heater control device forms an independent heater circuit; When the temperature inside the vehicle exceeds the target set temperature by more than a second set difference, the radiator is controlled to stop working; When the value by which the vehicle interior temperature exceeds the target set temperature is less than or equal to the second set difference, and the value by which the target set temperature exceeds the vehicle interior temperature is less than or equal to the second set difference, controlling the radiator to operate at a low speed; When the target set temperature exceeds the vehicle interior temperature by a value greater than a second set difference, the radiator is controlled to operate at a high speed.

8. The warm air control system according to any one of claims 1 to 7, characterized in that: When the heater controller receives a control instruction to turn on the heater or the defrost, it obtains the outside temperature of the vehicle, and then determines whether to send a query instruction to the residual heat controller to inquire whether to execute the residual heat program according to the outside temperature.

9. The warm air control system according to claim 8, characterized in that: When receiving a control instruction to turn off heating or defrosting, the heater controller turns off the heater, turns off the radiator, and turns off the electronic water pump after a set time.

10. A new energy vehicle, characterized in that: A heating control system suitable for utilizing waste heat of new energy vehicles according to any one of claims 1 to 9 is provided.

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