发明授权
- 专利标题: Method of eliminating torque interruption during mode shift
- 专利标题(中): 消除模式转换过程中转矩中断的方法
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申请号: US13555856申请日: 2012-07-23
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公开(公告)号: US08608618B1公开(公告)日: 2013-12-17
- 发明人: Vijay A. Neelakantan , Andrew W. Phillips , Zhe Xie
- 申请人: Vijay A. Neelakantan , Andrew W. Phillips , Zhe Xie
- 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: B60W10/04
- IPC分类号: B60W10/04
摘要:
In a multiple mode continuously variable transmission having a variator, a planetary gear assembly, a low mode brake that grounds a first component of the planetary gear assembly to provide lower operating speeds and a high mode brake that grounds a second component of the planetary gear assembly to provide higher operating speeds, the method of providing a mode upshift comprising the steps of adjusting the ratio of the variator from a low ratio to a high ratio, releasing the low mode brake while simultaneously engaging the high mode brake during a torque phase of the shift and reducing the variator ratio from a high ratio to a low ratio during the inertia phase of the shift, thereby eliminating torque interruption and providing a constant torque output.
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