发明授权
- 专利标题： Multiple-ratio automatic transmission control method and system for ratio upshifts
- 专利标题（中）： 多比例自动变速箱控制方法和系统比例换档
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申请号： US12871485申请日： 2010-08-30
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公开(公告)号： US08337361B2公开(公告)日： 2012-12-25
- 发明人: Yuji Fujii , Jahan Asgari , Davorin David Hrovat , Hong Jiang , Gregory Michael Pietron , Bradley Dean Riedle , Christopher John Teslak , Hongtei Eric Tseng
- 申请人： Yuji Fujii , Jahan Asgari , Davorin David Hrovat , Hong Jiang , Gregory Michael Pietron , Bradley Dean Riedle , Christopher John Teslak , Hongtei Eric Tseng
- 申请人地址： US MI Dearborn
- 专利权人： Ford Global Technologies, LLC
- 当前专利权人： Ford Global Technologies, LLC
- 当前专利权人地址： US MI Dearborn
- 代理机构： Brooks Kushman P.C.
- 代理商 David B. Kelley
- 主分类号： F16H61/00
- IPC分类号： F16H61/00
摘要：
A speed ratio shaft control for multiple ratio vehicle transmission has controlled release of an off-going transmission clutch and controlled engagement of an on-coming transmission clutch during a speed ratio upshift, at least one clutch being a friction torque establishing clutch. A controller, using shift-timing software strategy, actively manages in real time a clutch torque level for each clutch so that transient torque disturbances in a transmission torque output shaft are mitigated.
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