Vehicle-mounted air conditioner CCU mounting platform

Abstract

The utility model discloses a kind of vehicle-mounted air conditioner CCU installation platform, belong to vehicle-mounted air conditioner technical field, including signal input layer, main control unit, output control unit, external interactive layer and battery management system, main control unit is also provided with battery thermal management control module;This platform can improve battery performance and life, through accurate, timely preheating and cooling, so that power battery always works in optimum temperature interval, significantly improves charge-discharge efficiency, prolongs battery service life.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle air conditioning technology, specifically, it relates to a vehicle air conditioning CCU installation platform. Background Technology

[0002] As vehicles become increasingly intelligent, users have higher expectations for the functionality and control methods of in-vehicle air conditioning. The development of technologies such as the Internet of Things and artificial intelligence provides support for the intelligent control of in-vehicle air conditioning.

[0003] Currently, although both the vehicle's Battery Management System (BMS) and Cabin Air Conditioning System (CCU) involve temperature control, they are often two relatively independent control systems lacking deep coordination. This leads to problems such as low energy utilization efficiency and inability to cope with extreme operating conditions. For example, in low-temperature winter environments, the BMS consumes a large amount of electrical energy when it starts battery heating. If the CCU could coordinate and control the system in this situation, it could achieve more efficient energy management for the entire vehicle.

[0004] Therefore, how to improve the ease of operation and intelligence of vehicle air conditioning through convenient human-vehicle interaction, intelligent automated control, and highly integrated solutions, and achieve effective control of the air conditioning system and related thermal management components, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To address the above shortcomings, this utility model provides a vehicle-mounted air conditioning CCU installation platform, aiming to solve the problems of insufficient coordination between the existing CCU and the battery management system (BMS) and high overall vehicle energy consumption, including:

[0006] The signal input layer is provided with a communication interface for receiving status information of the power battery management system, a communication interface for receiving sensor signals, and a user input signal acquisition interface.

[0007] The main control unit is electrically connected to the signal input layer. The main control unit receives information from the signal input layer, processes the data through the MCU, and outputs the generated control commands to the output control unit.

[0008] The main control unit is also equipped with a battery thermal management control module. The battery thermal management control module determines whether the power battery needs temperature adjustment based on the status information of the battery management system received from the communication interface, and generates a temperature control command when needed.

[0009] The output control unit is electrically connected to the main control unit. The output control unit is used to independently control each component of the air conditioner according to the received control instructions. The output control unit is also provided with a drive interface connected to the flow channel switching valve of the battery management system.

[0010] An external interaction layer is provided, which is equipped with a CAN transceiver for connecting to the vehicle's CAN bus. The main control unit communicates with the external interaction layer via the CAN protocol. The external interaction layer also includes a vehicle controller.

[0011] Furthermore, the BMS status information includes at least one of the following: battery pack temperature, individual cell temperature, remaining battery charge (SOC), and charge / discharge status.

[0012] Furthermore, the battery thermal management control module has a built-in linkage decision matrix, which is used to determine whether the power battery needs to be heated or cooled based on the received BMS status information and vehicle operating status.

[0013] Furthermore, the output control unit is also equipped with a PTC heater drive circuit and a compressor refrigeration drive circuit.

[0014] Furthermore, the various components of the air conditioner include a compressor, a PTC heater, an actuator, a fan, and a control panel.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. Improve battery performance and lifespan: Through precise and timely preheating and cooling, the power battery always operates within the optimal temperature range, significantly improving charging and discharging efficiency and extending battery life.

[0017] 2. Optimize vehicle energy consumption and increase range: When it is necessary to supply power to the air conditioner and the battery at the same time, this controller avoids energy competition and redundant power consumption between the BMS and CCU through integrated intelligent decision-making, and realizes optimized energy allocation. Especially in winter, it effectively increases the actual driving range of the vehicle.

[0018] 3. High structural integration: Some decision-making functions of battery thermal management are integrated into the CCU, which reduces complex communication and decision redundancy between vehicle controllers, reduces system cost, and improves response speed and control reliability. Attached Figure Description

[0019] Figure 1 This is a structural block diagram of the present invention.

[0020] In the diagram: 1. Signal input layer; 2. Main control unit; 3. Output control unit; 4. External interaction layer; 5. Battery management system. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example

[0023] like Figure 1 As shown, this embodiment provides a vehicle-mounted air conditioning CCU installation platform, including:

[0024] Signal input layer 1 is provided with a communication interface for receiving status information from the battery management system 5 (i.e., BMS), a communication interface for receiving sensor signals, and an interface for receiving input signals from user physical buttons or touch screens (such as sensor signals from sensors for vehicle interior and exterior temperature, humidity, sunlight, etc., which will not be described in detail here).

[0025] The main control unit 2 is electrically connected to the signal input layer 1. The main control unit 2 receives information from the signal input layer 1, performs local signal data processing through the MCU, and outputs the generated control commands to the output control unit 2. At the same time, it is also electrically connected to the external interaction layer 4 and the output control unit 3.

[0026] The main control unit 2 is also equipped with a battery thermal management control module. The battery thermal management control module determines whether the power battery needs to be temperature-regulated based on the status information of the battery management system 5 received from the communication interface, and generates a temperature control command when necessary. The status information of the battery management system 5 includes at least one of the following: battery pack temperature, individual cell temperature, battery remaining charge (SOC), and charge / discharge status.

[0027] In addition, the battery thermal management control module has a built-in linkage decision matrix. The linkage decision matrix is ​​used to intelligently determine whether the power battery needs to be heated or cooled based on the status information received from the battery management system 5 and the vehicle's operating status (such as charging, driving, or sitting). When necessary, it generates precise temperature control commands.

[0028] Output control unit 3 is electrically connected to main control unit 2. Output control unit 3 is used to independently control various components of air conditioning (including compressor, PTC heater, actuator, fan and panel, etc., which can be set according to vehicle requirements) according to the received control commands. Output control unit 3 is also equipped with a drive interface connected to the flow channel switching valve of battery management system (not shown in the figure). Output control unit 3 is also equipped with PTC heater drive circuit and compressor cooling drive circuit. When it receives temperature control command from battery thermal management control module, it can work with drive interface to heat or cool down power battery.

[0029] The external interaction layer 4 is the physical interface for communicating with the vehicle network. The external interaction layer 4 is equipped with a CAN transceiver for connecting to the vehicle's CAN bus. The main control unit 2 communicates with the external interaction layer 4 via the CAN protocol. The external interaction layer 4 also includes the vehicle controller, enabling CAN protocol communication with other independent electronic control units (such as the battery management system 5, the vehicle controller VCU, etc.) on the vehicle network. All status information from the battery management system 5 is received through the external interaction layer 4 and then transmitted to the main control unit 2 for processing.

[0030] It should be noted that the structure described in this utility model can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this utility model.

Claims

1. A car-mounted air conditioner (CCU) mounting platform, characterized by comprising: include: The signal input layer (1) is provided with a communication interface for receiving status information of the battery management system (5), a communication interface for receiving sensor signals, and a user input signal acquisition interface. The main control unit (2) is electrically connected to the signal input layer (1). The main control unit (2) receives information from the signal input layer (1), processes the data through the MCU, and outputs the generated control commands to the output control unit (3). The main control unit (2) is also equipped with a battery thermal management control module. The battery thermal management control module determines whether the power battery needs to be temperature-regulated based on the status information of the battery management system (5) received from the communication interface, and generates a temperature control command when needed. The output control unit (3) is electrically connected to the main control unit (2). The output control unit (3) is used to independently control each component of the air conditioner according to the received control instructions. The output control unit (3) is also provided with a drive interface connected to the flow channel switching valve of the battery management system. The external interaction layer (4) is provided with a CAN transceiver for connecting the vehicle CAN bus. The main control unit (2) communicates with the external interaction layer (4) through the CAN protocol. The external interaction layer (4) also includes a vehicle controller.

2. The vehicle-mounted air conditioner CCU mounting platform of claim 1, wherein: The status information of the battery management system (5) includes at least one of the following: battery pack temperature, individual cell temperature, remaining battery charge (SOC), and charge / discharge status.

3. The vehicle-mounted air conditioner CCU mounting platform according to claim 1, characterized in that: The battery thermal management control module has a built-in linkage decision matrix, which is used to determine whether the power battery needs to be heated or cooled based on the status information received from the battery management system (5) and the vehicle operating status.

4. The vehicle-mounted air conditioner CCU mounting platform of claim 1, wherein: The output control unit (3) is also equipped with a PTC heater drive circuit and a compressor refrigeration drive circuit.

5. The vehicle-mounted air conditioner CCU mounting platform according to claim 1, characterized in that: The components of the air conditioner include a compressor, a PTC heater, an actuator, a fan, and a control panel.

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