Device and method for controlling and protecting air compressor in pure electric bus based on ASR valve

Abstract

The invention relates to a device and a method for controlling and protecting an air compressor in a pure electric bus based on an ASR valve. The device for controlling and protecting the air compressor comprises an air compressor controller, a whole vehicle controller, a gas storage barrel assembly, a whole vehicle instrument and an ASR electromagnetic valve, wherein the air compressor controlleris used for controlling start and stop of the air compressor; the whole vehicle controller is connected with the air compressor controller and is used for carrying out message transmitting with the air compressor controller; the whole vehicle instrument is correspondingly connected with the whole vehicle controller and the gas storage barrel assembly, and is used for collecting the air pressure information of the air cylinder assembly and transmitting the air pressure information to the whole vehicle controller; the ASR electromagnetic valve is correspondingly connected with the whole vehiclecontroller and the gas storage barrel assembly and is used for carrying out gas emptying on the air compressor in response to the control signals of the whole vehicle controller. Compared with the prior art, the device and a method for controlling and protecting the air compressor have the advantages that the potential safety hazard of the vehicle gas road brake caused by long-time load work canbe avoided, and the reliability and stability are achieved at a relatively low cost.

Description

technical field [0001] The invention relates to an air compressor control and protection technology, in particular to a control and protection device and method for an air compressor in a pure electric passenger car based on an ASR valve. Background technique [0002] With the rapid development of new energy vehicles in China, the safety and stability of new energy vehicles have been raised to higher requirements. The electric air compressors used in new energy buses have complex working conditions and high maintenance, repair and replacement costs. The new energy pure electric bus is different from the traditional bus in the way of vehicle brake air generation, and the electric air compressor is driven by electricity to compress the air to realize the gas generation. After the vehicle is inflated once, the gas accumulated between the air compressor and the four-circuit protection valve cannot be discharged. When the air compressor is started next time, it will start with lo...

AI Technical Summary

Problems solved by technology

After the vehicle is inflated once, the gas accumulated between the air compressor and the four-circuit protection valve cannot be discharged. When the air compressor is started next time, it will start with load. Long-term use will increase the failure rate and maintenance frequency of the air compressor. Increase

Due to the difference in product quality of many domestic brands, the vehicle starts to work for a long time with load, which is likely to cause damage to the air compressor, and there is a large amount of condensed water in the air pipeline, which makes the braking of the vehicle unstable and poses a safety hazard to the vehicle

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