关键词: 混合动力车；压缩空气管系统；燃油和纯电模式；控制原理

Abstract: In the process of development of hybrid electric vehicles,in order to meet the standards of energy conservation and emission reduction, while fulfilling the requirements of various working conditions in the process of vehicle operation, hybrid electric vehicles adopt two power sources. In order to meet the special requirements of electric drive and fuel drive, a compressed air piping system for hybrid commercial vehicles is designed. The purpose is to convert the gas supply system to each other under the fuel oil and pure electric mode. When the engine is working, the engine needs its own air compressor to provide air for the braking system, when the pure electric mode is switched, the electronically controlled air compressor is used to provide air for the braking system. The paper describes in detail the main components, control principle and application of the compressed air piping system in hybrid commercial vehicles.

Key words: Hybrid electric vehicles; Compressed air piping system; Fuel oil and pure electric mode; Control principle