发明授权
US08000869B2 Method for determining a torque characteristic of an automated friction clutch
有权
用于确定自动摩擦离合器的扭矩特性的方法
- 专利标题: Method for determining a torque characteristic of an automated friction clutch
- 专利标题(中): 用于确定自动摩擦离合器的扭矩特性的方法
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申请号: US12297364申请日: 2007-04-25
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公开(公告)号: US08000869B2公开(公告)日: 2011-08-16
- 发明人: Rainer Petzold , Peter Herter , Franz Bitzer
- 申请人: Rainer Petzold , Peter Herter , Franz Bitzer
- 申请人地址: DE Friedrichshafen
- 专利权人: ZF Friedrichshafen AG
- 当前专利权人: ZF Friedrichshafen AG
- 当前专利权人地址: DE Friedrichshafen
- 代理机构: Davis & Bujold, P.L.L.C.
- 优先权: DE102006019824 20060428
- 国际申请: PCT/EP2007/054011 WO 20070425
- 国际公布: WO2007/125062 WO 20071108
- 主分类号: G06F7/00
- IPC分类号: G06F7/00
摘要:
A method for determining a torque characteristic of a friction clutch located in a drive train of a motor vehicle in the force flow between a drive engine and a transmission and which is closed in its rest position. At least two marker points of a regulating-path-dependent torque characteristic are determined, one of which is determined at a slipping limit of the clutch. To enhance determination of the torque characteristic, a first marker point is determined with the clutch engaged, the transmission in neutral and the engine running, by slowly disengaging the clutch until a reduction in the speed of the transmission input shaft relative to the engine speed is detected. A corresponding pair of values of this marker point with the known braking torque of the input shaft and the set position are used for adapting an existing characteristic.
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