发明授权
- 专利标题: Electro-hydraulic control system for an electrically variable hybrid transmission
- 专利标题(中): 电动液压控制系统,用于电动混合变速器
-
申请号: US11115102申请日: 2005-04-26
-
公开(公告)号: US07322899B1公开(公告)日: 2008-01-29
- 发明人: Charles F. Long , Michael D. Foster
- 申请人: Charles F. Long , Michael D. Foster
- 申请人地址: US MI Detroit
- 专利权人: General Motors Corporation
- 当前专利权人: General Motors Corporation
- 当前专利权人地址: US MI Detroit
- 主分类号: F16H31/00
- IPC分类号: F16H31/00
摘要:
A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide four forward speed ranges, a neutral condition, an electric low and high speed mode, an electrically variable low and high speed mode, and a hill hold mode. The electro-hydraulic control system permits operation in the electrically variable low mode of operation if the electrical power is interrupted when the powertrain is operating in the first forward range, electric low speed mode, electrically variable low speed mode, and hill hold mode. Additionally, the system permits operation in the electrically variable high speed mode of operation if the electrical power is interrupted when the powertrain is operating in the second through fourth forward range, electric high speed mode, and electrically variable high speed mode.
信息查询