发明名称 |
METHOD AND APPARATUS FOR EXECUTING A SHIFT IN A POWERTRAIN SYSTEM |
摘要 |
A method for activating an oncoming clutch in a transmission includes monitoring rotational speeds of clutch elements of the oncoming clutch wherein the clutch elements are coupled to first and second rotationally independent torque actuators. A control speed profile for the first rotationally independent torque actuator is commanded. A speed profile of the oncoming clutch approaching zero speed is generated as is a control speed profile for the second rotationally independent torque actuator corresponding to a speed of the first rotationally independent torque actuator, the speed profile of the oncoming clutch, and an output speed of the transmission. A speed of the second rotationally independent torque actuator is controlled using the control speed profile for the second rotationally independent torque actuator. A speed of the oncoming clutch is monitored and the oncoming clutch is activated when the speed of the oncoming clutch is zero.
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申请公布号 |
US2012322610(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
US201113161602 |
申请日期 |
2011.06.16 |
申请人 |
SAH JY-JEN F.;KAMINSKY LAWRENCE A.;HEAP ANTHONY H.;TALARICO LISA M.;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
SAH JY-JEN F.;KAMINSKY LAWRENCE A.;HEAP ANTHONY H.;TALARICO LISA M. |
分类号 |
B60W10/08;B60W10/02 |
主分类号 |
B60W10/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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