发明申请
- 专利标题: DESIRED TORQUE CONVERTER CLUTCH SLIP FEEDBACK RECOVERY ALGORITHM FOR TIP-IN MANEUVERS
- 专利标题(中): 所需扭矩转换器离合器反馈回退算法
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申请号: US12555867申请日: 2009-09-09
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公开(公告)号: US20110060509A1公开(公告)日: 2011-03-10
- 发明人: Paul G. Otanez , Chunhao J. Lee , Farzad Samie
- 申请人: Paul G. Otanez , Chunhao J. Lee , Farzad Samie
- 申请人地址: US MI Detroit
- 专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址: US MI Detroit
- 主分类号: G06F19/00
- IPC分类号: G06F19/00
摘要:
A powertrain includes an engine, a transmission, and a torque converter located between the engine and the transmission. Subsequent to a rapid increase in engine torque commands, torque converter slip is controlled by monitoring a measured torque converter slip after the rapid increase in engine torque commands, determining a maximum measured torque converter slip value resulting from the rapid increase in engine torque commands based upon the measured torque converter slip, determining a target value to which to reduce the torque converter slip, determining a recovery profile to reduce the torque converter slip from the maximum measured torque converter slip to the target value, and utilizing the recovery profile to controllably reduce the torque controller slip. Determining the recovery profile includes commanding reducing slip through the profile at commanded torque converter slip values selected to prevent the torque converter slip from reaching zero.
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