发明授权
- 专利标题: Multi-speed transmissions
- 专利标题(中): 多速变速箱
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申请号: US12327844申请日: 2008-12-04
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公开(公告)号: US08052567B2公开(公告)日: 2011-11-08
- 发明人: James M. Hart , Andrew W. Phillips , Scott H. Wittkopp , Clinton E. Carey
- 申请人: James M. Hart , Andrew W. Phillips , Scott H. Wittkopp , Clinton E. Carey
- 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
- 代理机构: Quinn Law Group, PLLC
- 主分类号: F16H3/44
- IPC分类号: F16H3/44
摘要:
The transmission has a plurality of members that can be utilized in powertrains to provide at least nine forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets, six torque-transmitting devices, and four fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The six torque-transmitting devices provide interconnections between various gear members, and the transmission housing, and are operated in combinations of three to establish at least nine forward speed ratios and one reverse speed ratio.
公开/授权文献
- US20100144486A1 MULTI-SPEED TRANSMISSIONS 公开/授权日:2010-06-10
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