Method and device for automatically controlling air conditioners of electric cars based on CAN

Abstract

The invention provides a method and a device for automatically controlling air conditioners of electric cars based on CAN. The method comprises the following steps: obtaining in-car temperature data by virtue of an in-car temperature sensor and obtaining temperature data set by a user by virtue of a temperature setting device; comparing the in-car temperature data with the temperature data set by the user by virtue of a temperature controller and generating a first air conditioner controlling signal when the in-car temperature data is higher than the temperature data set by the user; generating a second air conditioner controlling signal when the in-car temperature data is lower than the temperature data set by the user; and controlling an air conditioner performing device to operate by virtue of an air conditioner controller according to the first air conditioner controlling signal or the second air conditioner controlling signal. Through the method and the device for automatically controlling the air conditioners of the electric cars based on CAN, the in-car temperature condition and the temperature condition required by the user can be obtained in time by obtaining the in-car temperature data and the temperature data set by the user; and the temperature controller is capable of generating corresponding air conditioner controlling signals and obtaining the difference between the in-car temperature and the temperature required by the user so as to generate the corresponding air conditioner controlling signals and control the air conditioners to heat or cool, thereby automatically regulating the in-car temperature.

Description

technical field [0001] The invention relates to the technical field of vehicle air conditioners, in particular to a CAN-based automatic control method and device for electric vehicle air conditioners. Background technique [0002] In recent years, with the development of the automobile industry, the development direction of intelligent and energy-saving vehicles has become more and more obvious. As a new energy vehicle, electric vehicles are often easier to adopt the latest intelligent and energy-saving technologies than traditional vehicles. Since the electric vehicle has canceled the engine, the crankshaft rotation of the engine cannot be used to provide power for the air conditioner compressor, nor can the exhaust pipe waste heat of the engine be used to provide heating function for the air conditioner. However, the current use of electric air conditioners in electric vehicles is still the same as that used in traditional vehicles, that is, the air conditioner panel with ...

AI Technical Summary

Problems solved by technology

Because the electric vehicle has canceled the engine, it cannot use the crankshaft rotation of the engine to provide power for the air conditioner compressor, nor can it use the waste heat of the exhaust pipe of the engine to provide heating function for the air conditioner

However, the current use of electric air conditioners in electric vehicles is still the same as that used in traditional vehicles, that is, the air conditioner panel with various buttons and knobs and the air conditioner controller are integrated together and installed on the cockpit panel. Adjust the switch buttons and knobs on the air-conditioning panel to generate various switching signals to input to the air-conditioning controller, and the air-conditioning controller controls the output of the air-conditioning actuator according to these input switching signals, such as the selection of cooling and heating, each The control of the damper motor, etc., the operation method is not much different from the manual air conditioner on the traditional car, and the more flexible controllability of the electric air conditioner cannot be fully utilized

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