Automobile electric control mechanical type automatic speed variator hydraulic system and its control method

汽车电控机械式自动变速器液压系统及其控制方法

Abstract

本发明公开了一种汽车电控机械式自动变速器液压系统,包括液压控制油路(2),液压控制油路(2)上设有两个选档缸控制阀(12、13)分别与选档油缸(14)的两个油腔连通;设有两个换档缸控制阀(9、10)分别与换档油缸(11)的两个油腔连通;设有离合器缸控制阀(16)与离合器油缸(15)的进油腔连通。本发明还公开了该液压系统的控制方法。采用上述技术方案,利用自动变速器的控制系统对自动变速器液压系统进行控制,实现了自动变速器的选档、换档和离合器离合的自动控制。
The invention discloses a hydraulic system for an automobile electrically-controlled mechanical type automatic transmission, comprising a hydraulically-controlled oil passage (2), wherein the hydraulically-controlled oil passage (2) is provided with two position selecting cylinder controlled valves (12, 13) respectively communicated with two oil chambers of a position selecting oil cylinder (14), two shift cylinder control valves (9, 10) are respectively communicated with two oil chambers of a shift cylinder (11), and a clutch cylinder control valve (16) is communicated with an oil feeding chamber of a clutch oil cylinder (15). The invention also discloses a control method of the hydraulic system. Utilizing the technical proposal, the automatic transmission hydraulic system is controlled through using the control system of the automatic transmission, thus automatically controlling position selecting, shifting and clutch on-off of the automatic transmission are realized.

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