Integrated heat management system of new energy automobile and new energy automobile

Abstract

The utility model belongs to the technical field of new energy automobiles, and particularly provides an integrated heat management system of a new energy automobile and the new energy automobile, which comprises a heat management controller, an air conditioner panel controller, a PTC (Positive Temperature Coefficient) controller and an electric compressor arranged at the front end of an automobile chassis and used for refrigerating, the heat management controller is connected with the air conditioner panel controller and the electric compressor. The air conditioner panel controller is connected with the PTC controller; the PTC controller is connected with a PTC heating module arranged at the front end of a vehicle chassis; the PTC heating module is further connected with the air conditioner panel controller. On the basis of meeting the heating and refrigeration requirements of the cabin, the battery heat exchanger is controlled by the electronic expansion valve to refrigerate the power battery, refrigeration of the power battery and refrigeration of the cabin are controlled by the thermal management controller, the utilization efficiency of thermal management components is improved, and energy consumption of thermal management of the whole vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to an integrated thermal management system of a new energy vehicle and a new energy vehicle. Background Art

[0002] At present, major OEMs regard pure electric vehicles as the development direction of new energy vehicles in the future, which have the advantages of energy saving, zero emission, good economy, etc. Unlike traditional power vehicles, the thermal management system is one of the core technologies in new energy vehicles. The thermal management system of new energy vehicles not only needs to meet the cooling and heating needs of the cabin, but also needs to take into account the thermal management needs of power components such as drive motors and power batteries.

[0003] Pure electric vehicles use power batteries as energy storage units. The power batteries currently in use have their own characteristics. The surrounding temperature and their own heat dissipation will have a great impact on them. During the driving process of new energy vehicles, a thermal management system is required to ensure that the power battery temperature is maintained within the ideal range. At the same time, new energy vehicle drivers need to heat the cabin. The combination of the above demands will further increase the consumption of the power battery, thereby affecting the vehicle's range.

[0004] Therefore, from the perspective of vehicle hardware design, how to unify the thermal management needs of power components and the thermal management needs of the cockpit by the vehicle thermal management controller, solve the problem of unified management of thermal management needs of new energy vehicles, and improve the endurance of the vehicle has become an urgent problem to be solved by major OEMs. Summary of the invention

[0005] The utility model proposes an integrated thermal management system for new energy vehicles and a new energy vehicle from the overall consideration of the hardware design of the whole vehicle, so as to solve the problem of unified management of thermal management requirements of new energy vehicles.

[0006] In the first aspect, the technical solution of the utility model provides an integrated thermal management system for a new energy vehicle, including a thermal management controller, an air conditioning panel controller, a PTC controller, and an electric compressor arranged at the front end of the vehicle chassis for cooling;

[0007] The thermal management controller is connected to the air conditioning panel controller and the electric compressor respectively;

[0008] The air conditioning panel controller is connected to the PTC controller;

[0009] The PTC controller is connected to a PTC heating module arranged at the front end of the vehicle chassis;

[0010] The PTC heating module is also connected to the air conditioning panel controller.

[0011] The electric compressor is used for cabin cooling needs and is controlled by a thermal management controller, which improves the utilization efficiency of thermal management components.

[0012] As a preferred embodiment of the present invention, the PTC heating module includes a PTC heater for heating the water channel and a PTC temperature sensor for collecting the real-time temperature of the PTC heater;

[0013] The PTC heater is connected to the PTC controller;

[0014] The PTC temperature sensor is connected to the air conditioning panel controller.

[0015] As a preferred embodiment of the present invention, the air conditioning panel controller is also connected to a temperature sensor module and a motor module arranged inside the cab instrument panel for driving the damper switch.

[0016] As a preferred embodiment of the present invention, the temperature sensor module includes an indoor temperature sensor arranged inside the instrument panel and an outdoor temperature sensor arranged at the front wall of the cab.

[0017] As a preferred embodiment of the present invention, the device also includes a battery management controller connected to the thermal management controller and arranged in the middle of the vehicle chassis for providing a target mode.

[0018] As a preferred embodiment of the utility model, the device also includes a battery water temperature sensor module connected to the thermal management controller for providing the water temperature on the battery side, a battery water pump for driving the flow of the battery water path, an electronic expansion valve for controlling the refrigerant flow at the battery heat exchanger end, and a solenoid valve and a condensing fan for controlling the refrigerant flow at the cabin end.

[0019] As a preferred embodiment of the present invention, the battery water temperature sensor module is arranged on the water inlet and outlet pipes of the condensing fan;

[0020] The battery water pump and electronic expansion valve are both located just below the cab at the front end of the vehicle chassis;

[0021] The solenoid valve is arranged at the right side of the first cross beam at the front end of the vehicle chassis;

[0022] The condensing fan is arranged in front of the cab.

[0023] As a preferred embodiment of the present invention, the battery water temperature sensor module includes a battery water inlet temperature sensor for collecting the water temperature on the battery water inlet side and a battery water outlet temperature sensor for collecting the water temperature on the battery water outlet side.

[0024] As a preferred embodiment of the present invention, the battery water inlet temperature sensor and the battery water outlet temperature sensor are both connected to the thermal management controller.

[0025] In a second aspect, the utility model provides a new energy vehicle, comprising the integrated thermal management system as described in the first aspect.

[0026] It can be seen from the above technical scheme that the utility model has the following advantages: on the basis of meeting the needs of cabin heating and cooling, the battery heat exchanger is controlled by the electronic expansion valve to cool the power battery, and the cooling of the power battery and the cabin is controlled by the thermal management controller, which improves the utilization efficiency of the thermal management components, reduces the energy consumption of the thermal management of the whole vehicle, and reduces the weight and cost of the whole vehicle.

[0027] In addition, the utility model has a reliable design principle, a simple structure and a very broad application prospect.

[0028] It can be seen that compared with the prior art, the utility model has substantial characteristics and progress, and the beneficial effects of its implementation are also obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of module connection in an embodiment of the utility model;

[0031] Figure 2 It is a specific connection diagram in the embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] like Figure 1 , Figure 2 As shown, the utility model provides an integrated thermal management system for new energy vehicles, including an air conditioning panel controller 1, a thermal management controller 2, an electric compressor 3, a PTC controller 4 and a PTC heating module 5;

[0034] The thermal management controller 2 is connected to the air conditioning panel controller 1 and the electric compressor 3 respectively;

[0035] The air conditioning panel controller 1 is connected to the PTC controller 4;

[0036] The PTC controller 4 is connected to a PTC heating module 5 arranged at the front end of the vehicle chassis;

[0037] The PTC heating module 5 is also connected to the air conditioning panel controller 1 .

[0038] Specifically, in the embodiment of the utility model, the status data output end of the air conditioning panel controller 1 is connected to the status data input end of the thermal management controller 2 via a CAN (Controller Area Network) bus communication, and the status data includes indoor temperature, outdoor temperature, evaporator temperature, set temperature, automatic mode gear, air volume gear and blowing mode;

[0039] The compressor operation status percentage data output terminal of the thermal management controller 2 is connected to the compressor operation status percentage data input terminal of the electric compressor 3 via a CAN bus communication;

[0040] The PTC control request data output terminal of the air conditioning panel controller 1 and the PTC control request data input terminal of the PTC controller 4 are controlled by PWM;

[0041] The high-voltage output terminal of the PTC controller 4 is connected to the high-voltage input terminal of the PTC heating module 5 .

[0042] In some embodiments, the PTC heating module 5 includes a first PTC heater 51 and a second PTC heater 52 for heating the water circuit and a PTC temperature sensor 53 for collecting the real-time PTC temperature. The PTC controller 4 can turn on one of the PTC heaters or both PTC heaters at the same time according to the heating demand; the PTC temperature data output end of the PTC temperature sensor 53 is communicatively connected with the PTC temperature data input end of the air conditioning panel controller 1.

[0043] In some embodiments, the temperature data output terminal of the temperature sensor module 6 is communicatively connected to the temperature data input terminal of the air conditioning panel controller 1 , and the temperature data includes indoor temperature, outdoor temperature and evaporator temperature.

[0044] The motor control instruction input terminal of the motor module 7 is communicatively connected to the motor control instruction output terminal of the air conditioning panel controller 1 .

[0045] In some embodiments, a battery circuit controller 8 is further included, and a setting mode request data output terminal of the battery circuit controller 8 is connected to a setting mode request data input terminal of the thermal management controller 2 via a CAN bus communication.

[0046] In some embodiments, the device further includes a battery water temperature sensor module 9, a battery water pump 10 for driving the flow of the battery water path, an electronic expansion valve 11 for controlling the refrigerant flow at the battery heat exchanger end, a solenoid valve 12 for controlling the refrigerant flow at the cabin end, and a condensing fan 13;

[0047] The battery water temperature sensor module is arranged on the water inlet and outlet pipes of the condensing fan;

[0048] The battery water pump and electronic expansion valve are both located just below the cab at the front end of the vehicle chassis;

[0049] The solenoid valve is arranged at the right side of the first cross beam at the front end of the vehicle chassis;

[0050] The condensing fan is arranged in front of the cab.

[0051] The battery side water temperature data output terminal of the battery water temperature sensor module 9 is communicatively connected with the battery side water temperature data input terminal of the thermal management controller 2;

[0052] The water pump driving instruction input terminal of the battery water pump 10 is communicatively connected with the water pump driving instruction output terminal of the thermal management controller 2;

[0053] The electronic expansion valve opening instruction input terminal of the electronic expansion valve 11 is communicatively connected with the electronic expansion valve opening instruction output terminal of the thermal management controller 2;

[0054] The solenoid valve control command input terminal of the solenoid valve 12 is communicatively connected with the solenoid valve control command output terminal of the thermal management controller 2;

[0055] The condensing fan PWM control instruction input terminal of the condensing fan 13 is communicatively connected to the condensing fan PWM control instruction output terminal of the thermal management controller 2 .

[0056] In some embodiments, the battery water temperature sensor module 9 includes a battery water inlet temperature sensor 91 for collecting the water temperature of the battery water inlet side and a battery water outlet temperature sensor 92 for collecting the water temperature of the battery water outlet side. The battery water inlet temperature data output terminal of the battery water inlet temperature sensor 91 is communicatively connected to the battery water inlet temperature data input terminal of the thermal management controller 2; the battery water outlet temperature data output terminal of the battery water outlet temperature sensor 92 is communicatively connected to the battery water outlet temperature data input terminal of the thermal management controller 2.

[0057] The utility model proposes an integrated thermal management system for new energy vehicles. On the basis of meeting the heating and cooling requirements of the cabin, the power battery is cooled through a heat exchanger. The cooling of the power battery and the cabin is controlled by a thermal management controller 2, which improves the utilization efficiency of the thermal management components, reduces the energy consumption of the thermal management of the whole vehicle, and reduces the weight and cost of the whole vehicle. The utility model provides a hardware integrated thermal management system and provides a specific hardware design connection relationship. The control of each controller can be implemented using an existing implementation method.

[0058] An embodiment of the utility model provides a new energy vehicle, comprising the integrated thermal management system as described in the above embodiment.

[0059] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. An integrated thermal management system for a new energy vehicle, characterized in that: It includes a thermal management controller, an air conditioning panel controller, a PTC controller, and an electric compressor arranged at the front end of the vehicle chassis for cooling; The thermal management controller is connected to the air conditioning panel controller and the electric compressor respectively; The air conditioning panel controller is connected to the PTC controller; The PTC controller is connected to a PTC heating module arranged at the front end of the vehicle chassis; The PTC heating module is also connected to the air conditioning panel controller.

2. The integrated thermal management system for new energy vehicles according to claim 1, characterized in that: The PTC heating module includes a PTC heater for heating the water path and a PTC temperature sensor for collecting the real-time temperature of the PTC heater; The PTC heater is connected to the PTC controller; The PTC temperature sensor is connected to the air conditioning panel controller.

3. The integrated thermal management system for new energy vehicles according to claim 1 or 2, characterized in that: The air conditioning panel controller is also connected to a temperature sensor module and a motor module arranged inside the cab instrument panel for driving the damper switch.

4. The integrated thermal management system for new energy vehicles according to claim 3, characterized in that: The temperature sensor module includes an indoor temperature sensor arranged inside the instrument panel and an outdoor temperature sensor arranged at the front wall of the cab.

5. The integrated thermal management system for new energy vehicles according to claim 1 or 2, characterized in that: The system also includes a battery management controller connected to the thermal management controller and disposed in the middle of the vehicle chassis for providing a target mode.

6. The integrated thermal management system for new energy vehicles according to claim 5, characterized in that: The system also includes a battery water temperature sensor module connected to the thermal management controller for providing the water temperature on the battery side, a battery water pump for driving the flow of the battery water path, an electronic expansion valve for controlling the refrigerant flow at the battery heat exchanger end, and a solenoid valve and condensing fan for controlling the refrigerant flow at the cabin end.

7. The integrated thermal management system for new energy vehicles according to claim 6, characterized in that: The battery water temperature sensor module is arranged on the water inlet and outlet pipes of the condensing fan; The battery water pump and electronic expansion valve are both located just below the cab at the front end of the vehicle chassis; The solenoid valve is arranged at the right side of the first cross beam at the front end of the vehicle chassis; The condensing fan is arranged in front of the cab.

8. The integrated thermal management system for new energy vehicles according to claim 6, characterized in that: The battery water temperature sensor module includes a battery water inlet temperature sensor for collecting the water temperature on the battery water inlet side and a battery water outlet temperature sensor for collecting the water temperature on the battery water outlet side.

9. The integrated thermal management system for new energy vehicles according to claim 8, characterized in that: The battery water inlet temperature sensor and the battery water outlet temperature sensor are both connected to the thermal management controller.

10. A new energy vehicle, characterized in that: Comprising an integrated thermal management system as described in any one of claims 1-9.

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