Invention Grant
US08435148B2 Hydraulic control system for an automatic transmission having electronic transmission range selection with failure mode control
有权
一种具有故障模式控制的电子变速范围选择的自动变速器液压控制系统
- Patent Title: Hydraulic control system for an automatic transmission having electronic transmission range selection with failure mode control
- Patent Title (中): 一种具有故障模式控制的电子变速范围选择的自动变速器液压控制系统
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Application No.: US12964545Application Date: 2010-12-09
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Publication No.: US08435148B2Publication Date: 2013-05-07
- Inventor: Steven P. Moorman
- Applicant: Steven P. Moorman
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H61/00
- IPC: F16H61/00
Abstract:
A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid that communicates with an electronic transmission range selection (ETRS) subsystem. The ETRS subsystem includes an ETRS valve, a park mechanism, first and second mode valve assemblies, a latch valve assembly, and a plurality of solenoids. The ETRS subsystem is configured to provide desired operating conditions during a plurality of potential failure conditions.
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