发明申请
- 专利标题： METHOD AND APPARATUS FOR EXECUTING A SHIFT IN A POWERTRAIN SYSTEM
- 专利标题（中）： 在动力系统中执行换档的方法和装置
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申请号： US13161602申请日： 2011-06-16
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公开(公告)号： US20120322610A1公开(公告)日： 2012-12-20
- 发明人: Jy-Jen F. Sah , Lawrence A. Kaminsky , Anthony H. Heap , Lisa M. Talarico
- 申请人： Jy-Jen F. Sah , Lawrence A. Kaminsky , Anthony H. Heap , Lisa M. Talarico
- 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： B60W10/08
- IPC分类号： B60W10/08 ; B60W10/02
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.