发明授权
- 专利标题: Electro-hydraulic control system for an automatic transmission
- 专利标题(中): 自动变速器电液控制系统
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申请号: US13079108申请日: 2011-04-04
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公开(公告)号: US08464851B2公开(公告)日: 2013-06-18
- 发明人: Steven P. Moorman
- 申请人: Steven P. Moorman
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 主分类号: F16H61/14
- IPC分类号: F16H61/14
摘要:
An electro-hydraulic control system for a multiple speed automatic motor vehicle transmission includes main and auxiliary hydraulic pumps, a line pressure regulator, a lubrication pressure regulator, a lubrication override control valve and a torque converter control valve which is controlled by a variable force solenoid (VFS). Driver commands are provided to the system through a manual logic or spool valve which functions in conjunction with a spool or logic default valve and a default solenoid. Five solenoid valves receive various flows of hydraulic fluid and supply them to hydraulic actuators that engage and disengage four friction clutches and a selectable one-way clutch.
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