Electric automobile and air conditioner control system and control method thereof

Abstract

The invention provides an electric automobile and an air conditioner control system and control method of the electric automobile. The air conditioner control system comprises an air conditioner management device and a vehicle control unit, the air conditioner management device is connected with a refrigerating device and / or a heating device and used for judging whether the refrigerating device and / or the heating device meet / meets a starting conditioner or not, and when the refrigerating device and / or the heating device meet / meets the starting condition, a request signal for starting the refrigerating device and / or the heating device is sent out; the vehicle control unit is in communication with the air conditioner management device through a CAN bus and is connected with the air conditioner management device through a hard wire, the vehicle control unit judges whether the electric automobile meets the starting condition of the refrigerating device and / or the heating device or not after receiving the request signal, and the vehicle control unit sends out a signal allowing starting to the air conditioner management device when the starting condition is met. According to the air conditioner control system and control method of the electric automobile and the electric automobile, the vehicle control unit can coordinate with the state of the finished automobile to control the air conditioner system, good performance of a power battery can be protected, and driving performance of the electric automobile is not affected.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an air-conditioning control system of an electric vehicle and a control method thereof, and an electric vehicle with the air-conditioning control system. Background technique [0002] The air-conditioning system of a traditional fuel vehicle is controlled by the air-conditioning system controller to turn on and off the cooling / heating function. discharge process, so as to protect the high-voltage battery from excessive discharge, so the air-conditioning system of the electric vehicle is controlled by the vehicle controller based on the state of the vehicle to start the air-conditioning system. The vehicle controller communicates with the air conditioning system controller or compressor controller through the CAN bus, the air conditioning system controller or compressor controller sends a cooling / heating request to the vehicle controller, and the vehicle controller integrates the...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing technology is that the communication between the vehicle controller and the air conditioning system controller is carried out through the CAN bus, but if the CAN bus fails, the vehicle controller cannot control the air conditioning system, which is likely to cause power battery damage. Over-discharge not only affects the performance of the battery, but also has a great impact on the driving performance of electric vehicles

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