A thermal management control system and method based on a new energy range-extending vehicle

Abstract

The application discloses a kind of heat management control system and method based on new energy range extending vehicle, system includes air conditioning subsystem, motor electric control cooling water pump, condenser fan;Method includes driving cabin heating step, battery cooling step, driving cabin and battery cooling step simultaneously, driving cabin cooling step.The refrigeration scheme of the present application matches different refrigeration requirements by the combination of air conditioning panel and thermal management controller TMS, reducing the development work of the controller;Split control scheme and control logic, the air conditioning panel of air conditioning driving cabin sends the heating demand of compressor refrigeration to the thermal management controller TMS by PWM signal mode, and the thermal management controller TMS sends out compressor, electric heater PTC power control output after synthesizing the cooling and heating demand of driving cabin, motor and electric control.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy vehicle thermal management, and particularly relates to a thermal management control system and method based on a new energy range-extending vehicle. BACKGROUND

[0002] With the popularization of new energy vehicles, the existing new energy vehicle thermal management system is mostly an integrated controller, that is, the refrigeration of the cab and the refrigeration of the motor battery share one controller. If different cabs and motor battery refrigeration combinations are needed, the controller needs to be redeveloped to match different refrigeration requirements. SUMMARY

[0003] The present application aims to solve the above technical problems, and provides a thermal management control system and method based on a new energy range-extending vehicle.

[0004] A thermal management control system based on a new energy range-extending vehicle, comprising an air conditioning subsystem, a motor electric control cooling water pump, and a condenser fan.

[0005] The heating and refrigeration entry conditions of the air conditioning subsystem are the hard-wire wake-up of the vehicle controller VCU.

[0006] When the heating and refrigeration entry conditions of the air conditioning subsystem are met, the thermal management controller TMS enters the initial state mode of the part.

[0007] The exit condition of the air conditioning subsystem is that the vehicle controller VCU control wake-up electric hard-wire has no signal.

[0008] When the exit condition of the air conditioning subsystem is met, the thermal management controller TMS is powered off.

[0009] The entry condition of the motor electric control cooling water pump is:

[0010] The vehicle controller VCU hard-wire enables the thermal management controller wake-up, the logic condition requests the motor electric control cooling water pump to start, and the motor electric control cooling water pump has no fault.

[0011] Or the vehicle controller VCU hard-wire enables the thermal management controller wake-up, the logic condition requests the motor electric control cooling water pump to start, and the motor electric control cooling water pump control signal line is short-circuited or open-circuited.

[0012] The exit condition of the motor electric control cooling water pump is:

[0013] When the thermal management controller TMS detects that the signal IG and the wake-up signal are both lower than 9V, the motor electric control cooling water pump stops after a 20-second delay, and the motor electric control cooling water pump closing and opening time interval >= 20 seconds.

[0014] The entering condition of the condenser fan is that the thermal management controller is powered on and the vehicle control unit VCU hard-wire enables the thermal management controller to wake up.

[0015] The exiting condition of the condenser fan is that the fan receives a speed requirement of 0, is closed for 15 seconds, and the interval between the closing and opening of the fan is greater than or equal to 20 seconds.

[0016] Further, a thermal management control system based on a new energy extended range vehicle, the vehicle control unit VCU hard-wire enables the thermal management controller to wake up includes when charging, when the voltage reduction chip DCDC works, when preparing to start, and when the three electricities are woken up.

[0017] The motor electric control cooling water pump self-checks at a low speed, the condenser fan self-checks for 3 seconds, and the motor electric control cooling water pump water circuit circulates for 13 seconds.

[0018] The working duty cycle of the motor electric control cooling water pump is:

[0019] When the water temperature is less than or equal to 30 degrees, the working duty cycle is 10%-55%;

[0020] When the water temperature is greater than 45 degrees, the working duty cycle is 90%-100%;

[0021] When the water temperature is between 30 degrees and 45 degrees, the working duty cycle is 55%-90%;

[0022] The speed of the condenser fan is:

[0023] When the motor temperature is less than or equal to 70 degrees and the multi-in-one PDU temperature is less than or equal to 50 degrees, the speed of the condenser fan is 0;

[0024] When the motor temperature is greater than 70 degrees and less than or equal to 80 degrees and the multi-in-one PDU temperature is less than or equal to 55 degrees, the speed of the condenser fan is 40%;

[0025] When the motor temperature is greater than 80 degrees and less than or equal to 90 degrees and the multi-in-one PDU temperature is less than or equal to 60 degrees, the speed of the condenser fan is 55%;

[0026] When the motor temperature is greater than 90 degrees and less than or equal to 100 degrees and the multi-in-one PDU temperature is less than or equal to 60 degrees, the speed of the condenser fan is 60%;

[0027] When the motor temperature is greater than 100 degrees and less than or equal to 110 degrees and the multi-in-one PDU temperature is less than or equal to 65 degrees, the speed of the condenser fan is 80%.

[0028] Further, a thermal management control system based on a new energy extended range vehicle, the air conditioning subsystem includes a part initial working mode, a cab heating working mode, a battery cooling mode, a cab and battery simultaneous cooling mode, and a cab cooling mode.

[0029] The initial working mode of the parts is that the refrigerant solenoid valve is closed, the condenser fan is not working, the electric compressor is not working, the electronic expansion valve is closed, the battery water pump is not working, and the electric heater PTC is not working.

[0030] The cabin heating working mode is preceded by the initial working mode of the parts.

[0031] The entering condition of the battery cooling mode is that the battery management system BMS and the thermal management controller TMS request cooling or the AC panel requests closing.

[0032] The battery management system BMS requests cooling, which is that the battery A or the battery B requests setting the mode to the refrigeration mode.

[0033] The refrigeration power of the battery cooling mode is set to the minimum value with reference to the battery A and the battery B.

[0034] The entering condition of the cabin and battery simultaneous cooling mode is that the AC panel requests opening.

[0035] The working condition for the battery cooling mode to return to the initial working mode of the parts is that the battery management system BMS requests shutdown to the thermal management controller TMS or the vehicle control unit VCU.

[0036] The working condition for the cabin and battery simultaneous cooling mode to return to the cabin cooling mode is that the battery management system BMS requests shutdown to the thermal management controller TMS or the vehicle control unit VCU.

[0037] The entering condition of the cabin cooling mode is the air conditioning panel hard line request and the compressor power request.

[0038] The working condition for the cabin cooling mode to return to the cabin and battery simultaneous cooling mode is that the battery management system BMS sends a refrigeration request to the thermal management controller TMS.

[0039] The working condition for the cabin cooling mode to return to the initial working mode of the parts is that the air conditioning panel hard line request is disconnected and the compressor power request is disconnected.

[0040] A thermal management control method based on a new energy range extending vehicle, comprising the following steps:

[0041] The cabin heating step: heating the air temperature of the cabin in the initial working mode of the parts.

[0042] The battery cooling step: cooling the battery under the request of the battery management system BMS and the thermal management controller TMS.

[0043] Cab and battery cooling step: cooling the cab and air conditioner at the same time at the request of the battery manager BMS and the thermal management controller TMS;

[0044] Cab cooling step: cooling the cab at the request of the air conditioner panel hard line.

[0045] Further, a thermal management control method based on a new energy range extending vehicle, the cab heating step includes the following sub-steps:

[0046] S1: The thermal management controller TMS receives the electric heater PTC start-stop signal;

[0047] S2: The air conditioner panel sends a PWM signal to the electric heater PTC;

[0048] S3: The thermal management controller TMS sends an electric heater PTC working request to the vehicle controller VCU according to the situation;

[0049] The electric heater PTC working request includes a closing request and an invalid request;

[0050] S4: The vehicle controller VCU sends an electric heater PTC high-voltage closing request to the all-in-one PDU;

[0051] S5: The all-in-one PDU sends an electric heater PTC high-voltage closing state to the vehicle controller VCU.

[0052] Further, a thermal management control method based on a new energy range extending vehicle, the battery cooling step includes the following sub-steps:

[0053] A1: The battery water pump is 100% open, circulating the cooling liquid inside the power battery pack;

[0054] A2: The thermal management controller TMS controls the electromagnetic valve to close, closing the cab refrigeration circuit;

[0055] A3: The condenser fan starts working, combined with high and low pressure sensors to develop strategies;

[0056] A4: The thermal management controller TMS, compressor, vehicle controller VCU, and all-in-one PDU communicate signals:

[0057] The thermal management controller TMS communicates CAN signals to the compressor: compressor on-off command, target speed, and allowed power consumption;

[0058] The compressor communicates CAN signals to the thermal manager TMS: feedback speed when starting, and compressor state when starting;

[0059] VCU to Multi-PDU: VCU, AC high voltage close request;

[0060] Multi-PDU to VCU: high voltage close state open;

[0061] A5: Electronic expansion valve open.

[0062] Further, the thermal management control method based on the new energy range extending vehicle further comprises returning the initial working mode of the parts in the battery cooling mode, and the steps are as follows:

[0063] I1: Thermal management controller TMS controls the hard-wire enablement of the compressor to be disconnected;

[0064] I2: Thermal management controller TMS transmits CAN signals to the compressor: compressor on-off command, target rotating speed, allowable power consumption, and compressor disconnection;

[0065] I3: The compressor sends the rotating speed and the compressor state to the thermal management controller TMS when the compressor is shut down;

[0066] I4: VCU to Multi-PDU: VCU, AC high voltage close request;

[0067] I5: Multi-PDU to VCU: high voltage close state open;

[0068] I6: Electromagnetic valve, condenser fan, battery water pump, and electronic expansion valve state return to the initial working mode of the parts.

[0069] Further, the thermal management control method based on the new energy range extending vehicle further comprises the following sub-steps in the step of simultaneously cooling the cab and the battery:

[0070] F1: Battery water pump open;

[0071] F2: Thermal management controller TMS controls the electromagnetic valve to open, and the cab refrigeration circuit is started;

[0072] F3: Condenser fan starts working, and a strategy is formulated in combination with high and low pressure sensors;

[0073] F4: Thermal management controller TMS, compressor, VCU, and Multi-PDU communicate signals:

[0074] Thermal management controller TMS to VCU: compressor power;

[0075] Thermal management controller TMS to compressor: compressor rotating speed request;

[0076] Compressor communicates CAN signal to thermal manager TMS: compressor actual speed;

[0077] Vehicle controller VCU communicates CAN signal to multi-in-one PDU: AC high voltage close request;

[0078] Multi-in-one PDU communicates CAN signal to vehicle controller VCU: AC high voltage close status;

[0079] F5: Electronic expansion valve opens.

[0080] Further, a thermal management control method based on a new energy range extending vehicle, the cab cooling step includes the following sub-steps:

[0081] E1: Thermal management controller TMS controls electromagnetic valve to open, and opens cab refrigeration circuit;

[0082] E2: Condenser fan starts working, and formulates strategy in combination with high and low pressure sensors;

[0083] E3: Thermal management controller TMS communicates CAN signal to vehicle controller VCU: compressor speed request;

[0084] E4: Vehicle controller VCU communicates CAN signal to multi-in-one PDU: AC high voltage close request;

[0085] E5: Multi-in-one PDU communicates CAN signal to vehicle controller VCU: AC high voltage close status;

[0086] E6: Electronic expansion valve closes, and battery water pump does not work.

[0087] Further, a thermal management control method based on a new energy range extending vehicle, further includes returning parts to initial working mode in cab cooling mode, and the steps are:

[0088] D1: Thermal management controller TMS controls compressor hard line enable to disconnect;

[0089] D2: Thermal management controller TMS sends compressor speed 0 instruction to compressor;

[0090] D3: Electromagnetic valve, condenser fan, battery water pump, and electronic expansion valve return to parts initial working mode.

[0091] The beneficial effects of the present application are: through a heat management control system and method based on a new energy range extending vehicle, the refrigeration scheme matches different refrigeration requirements through the combination of the air conditioning panel and the heat management controller TMS, reduces the development work of the controller; the split control scheme and control logic, the air conditioning panel of the cab air conditioner sends the refrigeration and heating requirements of the compressor to the heat management controller TMS through the PWM signal mode, and the heat management controller TMS sends the compressor and the PTC power control output after comprehensively considering the cooling and heating requirements of the cab, the motor and the electronic control. BRIEF DESCRIPTION OF DRAWINGS

[0092] Fig. 1 is the circuit diagram of the motor electronic control cooling circuit.

[0093] Fig. 2 is the circuit diagram of the battery and cab cooling circuit. DETAILED DESCRIPTION

[0094] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings.

[0095] As shown in the accompanying Figs. 1-2 , a heat management control system based on a new energy range extending vehicle, comprising an air conditioning subsystem, a motor electronic control cooling water pump, a condenser fan;

[0096] The heating and refrigeration entering conditions of the air conditioning subsystem are the hard-wire wake-up of the vehicle controller VCU;

[0097] When the heating and refrigeration entering conditions of the air conditioning subsystem are met, the heat management controller TMS enters the part initial state mode;

[0098] The exit condition of the air conditioning subsystem is that the vehicle controller VCU control wake-up electric hard-wire has no signal;

[0099] When the exit condition of the air conditioning subsystem is met, the heat management controller TMS is powered off;

[0100] The entering condition of the motor electronic control cooling water pump is:

[0101] The vehicle controller VCU hard-wire enables the heat management controller to wake up, the logic condition requests the motor electronic control cooling water pump to start, and the motor electronic control cooling water pump has no fault;

[0102] Or the vehicle controller VCU hard-wire enables the heat management controller to wake up, the logic condition requests the motor electronic control cooling water pump to start, and the motor electronic control cooling water pump control signal line is short-circuited or open-circuited;

[0103] The exit condition of the motor electronic control cooling water pump is:

[0104] When the thermal management controller TMS detects that both the signal IG and the wake-up signal are lower than 9V, the motor electric control cooling water pump works for 20 seconds and then stops, and the closing and opening time interval of the motor electric control cooling water pump is greater than or equal to 20 seconds;

[0105] The entering condition of the condenser fan is that the thermal management controller is powered on and the vehicle controller VCU enables the thermal management controller to wake up through a hard line;

[0106] The exiting condition of the condenser fan is that the fan receives a speed requirement of 0, is closed after a delay of 15 seconds, and the closing and opening time interval of the fan is greater than or equal to 20 seconds.

[0107] Further, a thermal management control system based on a new energy extended-range vehicle, the vehicle controller VCU enables the thermal management controller to wake up through a hard line, including when charging, when the voltage reduction chip DCDC is working, when starting is prepared, and when three electricities are woken up;

[0108] When the motor electric control cooling water pump is self-checked, it runs at low speed, the condenser fan is self-checked for 3 seconds, and the motor electric control cooling water pump is self-checked for one cycle of water circulation for 13 seconds.

[0109] The working duty cycle of the motor electric control cooling water pump is:

[0110] When the water temperature is less than or equal to 30 degrees, the working duty cycle is 10%-55%;

[0111] When the water temperature is greater than 45 degrees, the working duty cycle is 90%-100%;

[0112] When the water temperature is between 30 degrees and 45 degrees, the working duty cycle is 55%-90%;

[0113] The speed of the condenser fan is:

[0114] When the motor temperature is less than or equal to 70 degrees and the multi-in-one PDU temperature is less than or equal to 50 degrees, the speed of the condenser fan is 0;

[0115] When the motor temperature is greater than 70 degrees and less than or equal to 80 degrees and the multi-in-one PDU temperature is less than or equal to 55 degrees, the speed of the condenser fan is 40%;

[0116] When the motor temperature is greater than 80 degrees and less than or equal to 90 degrees and the multi-in-one PDU temperature is less than or equal to 60 degrees, the speed of the condenser fan is 55%;

[0117] When the motor temperature is greater than 90 degrees and less than or equal to 100 degrees and the multi-in-one PDU temperature is less than or equal to 60 degrees, the speed of the condenser fan is 60%;

[0118] When the motor temperature is greater than 100 degrees and less than or equal to 110 degrees and the multi-in-one PDU temperature is less than or equal to 65 degrees, the speed of the condenser fan is 80%.

[0119] Further, a heat management control system based on a new energy range extending vehicle, the air conditioning subsystem includes a part initial operation mode, a cab heating operation mode, a battery cooling mode, a cab and battery simultaneous cooling mode, and a cab cooling mode;

[0120] The part initial operation mode is a refrigerant solenoid valve closed state, a condenser fan not working, an electric compressor not working, an electronic expansion valve closed state, a battery water pump not working, and an electric heater PTC not working.

[0121] The cab heating operation mode is previously the part initial operation mode.

[0122] The entering condition of the battery cooling mode is that the battery management system BMS and the heat management controller TMS request cooling or the AC panel requests to be closed.

[0123] The battery management system BMS requests cooling, which is that the battery A or the battery B requests to set the mode to the refrigeration mode.

[0124] The refrigeration power of the battery cooling mode refers to the minimum value of the battery A and B set temperature.

[0125] The entering condition of the cab and battery simultaneous cooling mode is that the AC panel requests to be opened.

[0126] The working condition of the battery cooling mode returning to the part initial operation mode is that the battery management system BMS requests shutdown to the heat management controller TMS or the vehicle control unit VCU.

[0127] The working condition of the cab and battery simultaneous cooling mode returning to the cab cooling mode is that the battery management system BMS requests shutdown to the heat management controller TMS or the vehicle control unit VCU.

[0128] The entering condition of the cab cooling mode is the air conditioning panel hard line request and the compressor power request.

[0129] The working condition of the cab cooling mode returning to the cab and battery simultaneous cooling mode is that the battery management system BMS sends a refrigeration request to the heat management controller TMS.

[0130] The working condition of the cab cooling mode returning to the part initial operation mode is that the air conditioning panel hard line request is disconnected and the compressor power request is disconnected.

[0131] A heat management control method based on a new energy range extending vehicle, comprising the following steps:

[0132] Cab heating step: heating the air temperature of the cab in the part initial operation mode.

[0133] Battery cooling step: cooling the battery upon request of the battery manager BMS and the thermal management controller TMS;

[0134] Cab and battery cooling step: cooling the cab and air conditioner simultaneously upon request of the battery manager BMS and the thermal management controller TMS;

[0135] Cab cooling step: cooling the cab upon request of the air conditioner panel hardwire.

[0136] Further, a thermal management control method based on a new energy range extending vehicle, the cab heating step includes the following sub-steps:

[0137] S1: the thermal management controller TMS receives a PTC start-stop signal of an electric heater;

[0138] S2: the air conditioner panel sends a PWM signal to the electric heater PTC;

[0139] S3: the thermal management controller TMS sends an electric heater PTC working request to the vehicle controller VCU according to the situation;

[0140] The electric heater PTC working request includes a closing request and an invalid request;

[0141] S4: the vehicle controller VCU sends an electric heater PTC high-voltage closing request to the all-in-one PDU;

[0142] S5: the all-in-one PDU sends an electric heater PTC high-voltage closing state to the vehicle controller VCU.

[0143] Further, a thermal management control method based on a new energy range extending vehicle, the battery cooling step includes the following sub-steps:

[0144] A1: the battery water pump is 100% open, making the internal cooling liquid of the power battery pack circulate;

[0145] A2: the thermal management controller TMS controls the electromagnetic valve to close, closing the cab refrigeration circuit;

[0146] A3: the condenser fan starts working, combined with high and low pressure sensors to develop strategies;

[0147] A4: the thermal management controller TMS, the compressor, the vehicle controller VCU, and the all-in-one PDU communicate signals:

[0148] The thermal management controller TMS communicates CAN signals to the compressor: compressor on-off command, target speed, and allowed power consumption;

[0149] Compressor communicates CAN signal to thermal manager TMS: feedback speed when starting, compressor state when starting;

[0150] VCU communicates CAN signal to multi-PDU: VCU, AC high voltage closing request;

[0151] Multi-PDU communicates CAN signal to VCU: high voltage closing state is disconnected;

[0152] A5: Electronic expansion valve is opened.

[0153] Further, the thermal management control method based on the new energy range extending vehicle further includes returning the initial working mode of the parts in the battery cooling mode, and the steps are as follows:

[0154] I1: Thermal management controller TMS controls the hard-wire enablement of the compressor to be disconnected;

[0155] I2: Thermal management controller TMS communicates CAN signal to the compressor: compressor start / stop command, target speed, allowed power consumption, and compressor disconnection;

[0156] I3: Compressor sends the speed when the compressor is stopped and the compressor state to the thermal management controller TMS;

[0157] I4: VCU communicates CAN signal to multi-PDU: VCU, AC high voltage closing request;

[0158] I5: Multi-PDU communicates CAN signal to VCU: high voltage closing state is disconnected;

[0159] I6: Electromagnetic valve, condenser fan, battery water pump, and electronic expansion valve return to the initial working mode of the parts.

[0160] Further, the thermal management control method based on the new energy range extending vehicle further includes the following sub-steps in the step of cooling the cab and the battery simultaneously:

[0161] F1: Battery water pump is started;

[0162] F2: Thermal management controller TMS controls the electromagnetic valve to be opened, and the cab refrigeration circuit is started;

[0163] F3: Condenser fan starts working, and a strategy is formulated in combination with high and low pressure sensors;

[0164] F4: Thermal management controller TMS, compressor, VCU, and multi-PDU communicate signals:

[0165] Thermal management controller TMS communicates CAN signal to VCU: compressor power;

[0166] Thermal management controller TMS communicates CAN signal to compressor: compressor speed request;

[0167] Compressor communicates CAN signal to thermal manager TMS: compressor actual speed;

[0168] Vehicle controller VCU communicates CAN signal to multi-in-one PDU: AC high voltage close request;

[0169] Multi-in-one PDU communicates CAN signal to vehicle controller VCU: AC high voltage close status;

[0170] F5: Electronic expansion valve opens.

[0171] Further, a thermal management control method based on a new energy range extending vehicle, the cab cooling step includes the following sub-steps:

[0172] E1: Thermal management controller TMS controls electromagnetic valve to open, and opens cab refrigeration circuit;

[0173] E2: Condenser fan starts working, and formulates strategy in combination with high and low pressure sensors;

[0174] E3: Thermal management controller TMS communicates CAN signal to vehicle controller VCU: compressor speed request;

[0175] E4: Vehicle controller VCU communicates CAN signal to multi-in-one PDU: AC high voltage close request;

[0176] E5: Multi-in-one PDU communicates CAN signal to vehicle controller VCU: AC high voltage close status;

[0177] E6: Electronic expansion valve closes, and battery water pump does not work.

[0178] Further, a thermal management control method based on a new energy range extending vehicle, further includes returning parts to initial working mode in cab cooling mode, and the steps are:

[0179] D1: Thermal management controller TMS controls compressor hard line enable to disconnect;

[0180] D2: Thermal management controller TMS sends compressor speed 0 instruction to compressor;

[0181] D3: Electromagnetic valve, condenser fan, battery water pump, and electronic expansion valve return to parts initial working mode.

[0182] The scheme is based on a heat management control system and method of a new energy range extending vehicle, a refrigeration scheme matches different refrigeration requirements through a combination of an air conditioner panel and a heat management controller TMS, reduces the development work of the controller, and a split type control scheme and control logic, the air conditioner panel of the cab air conditioner sends the refrigeration and heating requirements of the compressor to the heat management controller TMS through a PWM signal mode, and the heat management controller TMS sends out the compressor and the PTC power control output of the electric heater after comprehensively considering the cooling and heating requirements of the cab, the motor and the electronic control.

[0183] The basic principles and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A thermal management control system based on a new energy range extending vehicle, characterized in that, The air conditioning subsystem, the motor electric control cooling water pump, and the condenser fan; The heating and refrigeration entering condition of the air conditioning subsystem is the hard-wired wake-up of the vehicle controller; When the heating and refrigeration entering condition of the air conditioning subsystem is met, the thermal management controller enters the part initial state mode; the part initial working mode is the closed state of the refrigerant solenoid valve, the non-working condenser fan, the non-working electric compressor, the closed state of the electronic expansion valve, the non-working battery cooling water pump, and the non-working electric heater PTC; The exiting condition of the air conditioning subsystem is the absence of the hard-wired wake-up signal of the vehicle controller; When the exiting condition of the air conditioning subsystem is met, the thermal management controller is powered off; The entering condition of the motor electric control cooling water pump is: The hard-wired wake-up of the thermal management controller by the vehicle controller, the logic condition requesting the start of the motor electric control cooling water pump, and the absence of faults of the motor electric control cooling water pump; The exiting condition of the motor electric control cooling water pump is: When the thermal management controller detects that both the signal IG and the wake-up signal are lower than 9V, the motor electric control cooling water pump stops after a 20-second delay, and the closing and opening time interval of the motor electric control cooling water pump is >=20 seconds; The entering condition of the condenser fan is the power-on of the thermal management controller and the hard-wired wake-up of the thermal management controller by the vehicle controller; The exiting condition of the condenser fan is that the fan receives a speed requirement of 0, and is closed after a 15-second delay, and the closing and opening time interval of the fan is >=20 seconds; The air conditioning subsystem includes the part initial working mode, the cab heating working mode, the battery cooling mode, the cab and battery simultaneous cooling mode, and the cab cooling mode; The entering condition of the battery cooling mode is the cooling request of the battery management system BMS and the thermal management controller or the closing request of the AC panel; The entering condition of the cab and battery simultaneous cooling mode is the opening request of the AC panel; The working condition for the battery cooling mode to return to the part initial working mode is the shutdown request of the battery management system BMS to the thermal management controller or the vehicle controller; The working condition for the cab and battery simultaneous cooling mode to return to the cab cooling mode is the shutdown request of the battery management system BMS to the thermal management controller or the vehicle controller; The entering condition of the cab cooling mode is the hard-wired request of the air conditioning panel and the compressor power request; The working condition for the cab cooling mode to return to the cab and battery simultaneous cooling mode is the refrigeration request of the battery management system BMS to the thermal management controller; The working condition for the cab cooling mode to return to the part initial working mode is the disconnection of the hard-wired request of the air conditioning panel and the compressor power request.

2. The thermal management control system based on a new energy range extending vehicle according to claim 1, characterized in that, The hard-wired wake-up of the thermal management controller by the vehicle controller includes the charging time, the working time of the voltage reduction chip DCDC, the preparation start time, and the wake-up of the three electricities; The low-speed operation of the motor electric control cooling water pump during self-checking, the 3-second self-checking of the condenser fan, and the 13-second water circuit circulation self-checking of the motor electric control cooling water pump; The working duty cycle of the motor electric control cooling water pump is: When the water temperature is <=30 degrees, the working duty cycle is 10%-55%; When the water temperature is >45 degrees, the working duty cycle is 90%-100%; When the water temperature is between 30 degrees and 45 degrees, the working duty cycle is 55%-90%; The speed of the condenser fan is: Motor temperature <= 70 degrees and all-in-one PDU temperature <= 50 degrees, the speed of the condenser fan is 0; Motor temperature > 70 degrees and motor temperature <= 80 degrees and all-in-one PDU temperature <= 55 degrees, the speed of the condenser fan is 40%; Motor temperature > 80 degrees and motor temperature <= 90 degrees and all-in-one PDU temperature <= 60 degrees, the speed of the condenser fan is 55%; Motor temperature > 90 degrees and motor temperature <= 100 degrees and all-in-one PDU temperature <= 60 degrees, the speed of the condenser fan is 60%; Motor temperature > 100 degrees and motor temperature <= 110 degrees and all-in-one PDU temperature <= 65 degrees, the speed of the condenser fan is 80%.

3. The thermal management control system based on a new energy range extending vehicle according to claim 1, characterized in that, The cab heating working mode is initially a part initial working mode; The battery manager BMS requests cooling for the battery A or battery B requests to set the mode to the refrigeration mode; The refrigeration power of the battery cooling mode refers to the minimum value of the battery A and B set temperature.

4. A thermal management control method based on a new energy range-extending vehicle, characterized in that, A kind of heat management control system based on new energy range extending vehicle based on any one of claims 1~3 is realized, comprising the following steps: Cab heating step: heating the air temperature of cab in part initial working mode; Battery cooling step: cooling battery under the request of battery manager BMS and heat management controller; Cab and battery cooling step: cooling cab and air conditioner simultaneously under the request of battery manager BMS and heat management controller; Cab cooling step: cooling cab under the request of air conditioner panel hard line.

5. The thermal management control method for a new energy range extending vehicle according to claim 4, characterized in that, The cab heating step includes the following sub-steps: S1: the heat management controller receives the PTC start-stop signal of the electric heater; S2: the air conditioner panel sends the PWM signal to the electric heater PTC; S3: the heat management controller sends the electric heater PTC working request to the vehicle controller according to the situation; The electric heater PTC working request includes closing request and invalid request; S4: the vehicle controller sends the electric heater PTC high voltage closing request to the all-in-one PDU; S5: the all-in-one PDU sends the electric heater PTC high voltage closing state to the vehicle controller. 6.The thermal management control method based on a new energy range extending vehicle according to claim 4, characterized in that, The battery cooling step includes the following sub-steps: A1: the battery water pump is 100% open, so that the internal cooling liquid of the power battery pack circulates; A2: the heat management controller controls the electromagnetic valve to close, and closes the cab refrigeration circuit; A3: the condensing fan starts working, combined with high and low pressure sensors to develop strategies; A4: the heat management controller, compressor, vehicle controller and all-in-one PDU communicate signals: The heat management controller communicates CAN signal to the compressor: compressor on-off command, target speed, allowed power consumption; The compressor communicates CAN signal to the heat manager: feedback speed when starting, starting compressor state; The vehicle controller communicates CAN signal to the all-in-one PDU: vehicle controller, AC high voltage closing request; The all-in-one PDU communicates CAN signal to the vehicle controller: high voltage closing state is disconnected; A5: the electronic expansion valve is opened.

7. The thermal management control method for a new energy range extending vehicle according to claim 6, characterized in that, It also includes returning to part initial working mode under battery cooling mode, the steps are: I1: the heat management controller controls the compressor hard line to enable to disconnect; I2: The thermal management controller transmits CAN signals to the compressor: compressor switch-off command, target rotation speed, allowed power consumption, compressor disconnection; I3: The compressor sends the rotation speed at the time of switch-off state to the thermal management controller, compressor status; I4: The vehicle controller transmits CAN signals to the all-in-one PDU: vehicle controller, AC high voltage closure request; I5: The all-in-one PDU transmits CAN signals to the vehicle controller: high voltage closure disconnection status; I6: The solenoid valve, condenser fan, battery water pump, electronic expansion valve status return to the initial working mode of the part. 8.The thermal management control method based on a new energy range extending vehicle according to claim 4, characterized in that, The cab and battery cooling step includes the following sub-steps: F1: The battery water pump is turned on; F2: The thermal management controller controls the solenoid valve to open, turning on the cab refrigeration circuit; F3: The condenser fan starts working, combined with high and low pressure sensors to develop strategies; F4: The thermal management controller, compressor, vehicle controller, all-in-one PDU transmit signals: The thermal management controller transmits CAN signals to the vehicle controller: compressor power; The thermal management controller transmits CAN signals to the compressor: compressor rotation speed request; The compressor transmits CAN signals to the thermal management controller: actual compressor rotation speed; The vehicle controller transmits CAN signals to the all-in-one PDU: AC high voltage closure request; The all-in-one PDU transmits CAN signals to the vehicle controller: AC high voltage closure status; F5: The electronic expansion valve is opened. 9.The thermal management control method based on a new energy range extending vehicle according to claim 4, characterized in that, The cab cooling step includes the following sub-steps: E1: The thermal management controller controls the solenoid valve to open, turning on the cab refrigeration circuit; E2: The condenser fan starts working, combined with high and low pressure sensors to develop strategies; E3: The thermal management controller transmits CAN signals to the vehicle controller: compressor rotation speed request; E4: The vehicle controller transmits CAN signals to the all-in-one PDU: AC high voltage closure request; E5: The all-in-one PDU transmits CAN signals to the vehicle controller: AC high voltage closure status; E6: The electronic expansion valve is closed, and the battery water pump is not working. 10.The thermal management control method based on a new energy range extending vehicle according to claim 9, wherein, It also includes returning the part to the initial working mode in the cab cooling mode, the steps are: D1: The thermal management controller controls the compressor hard line enable to disconnect; D2: The thermal management controller sends the compressor rotation speed to 0 instruction to the compressor; D3: The solenoid valve, condenser fan, battery water pump, electronic expansion valve status return to the initial working mode of the part.

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