外控变排量空调压缩机在现代汽车上得到越来越广泛的应用,与内控变排量压缩机相比可以有效解决调节精度差,响应时间慢,节能效果不显著、系统振荡和蒸发器结霜等问题。本文介绍了外控变排量压缩机的应用优点和工作方法,重点阐述外控变排量压缩机的结构与控制原理及整车上的标定及控制。 External control variable displacement air conditioning compressor is more and more widely used in modern vehicles, compared with the internal control variable displacement compressor can effectively solve the poor regulation accuracy, slow response time, energy-saving effect is not significant, the system oscillation and evaporator Frosting and other issues. This paper introduces the application of external variable displacement compressor advantages and methods of work, focusing on the external control variable displacement compressor structure and control principles and the vehicle calibration and control.