自动变速器结构复杂,维修困难,成本较高。这些问题一直困扰着维修人员,对维修人员的知识、技术、经验等方面要求较高;同时也是中高档配置的乘用车成本居高不下的原因之一。笔者针对自动变速器液压控制系统故障诊断中主油压测试的方法以及对结果的分析提出了个人的看法。 Automatic transmission structure is complex, maintenance difficulties, high cost. These problems have plagued the maintenance staff, maintenance personnel, knowledge, skills, experience and other aspects of the higher requirements; but also high-end configuration of the high cost of passenger cars one of the reasons. The author of the automatic transmission hydraulic control system fault diagnosis of the main oil pressure test methods and analysis of the results put forward personal views.