发明授权
- 专利标题： Shifting device for a variable speed motor vehicle transmission
- 专利标题（中）： 变速汽车变速箱换档装置
-
申请号： US12602283申请日： 2008-05-27
-
公开(公告)号： US08578809B2公开(公告)日： 2013-11-12
- 发明人: Klaus Spaeth , Dieter Fischer
- 申请人： Klaus Spaeth , Dieter Fischer
- 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, PLLC
- 代理商 Michael J. Bujold
- 优先权： DE102007026422 20070606
- 国际申请： PCT/EP2008/056458 WO 20080527
- 国际公布： WO2008/148663 WO 20081211
- 主分类号： B60K17/10
- IPC分类号： B60K17/10
摘要：
A shifting device (11, 40) with a servo-assistance mechanism (10), in particular for a transmission (30) of a motor vehicle which comprises an assembly for selecting and engaging a gear of the transmission (30) and an element (20) upon which acts a manual shifting force to be assisted. The servo-assistance mechanism (10) can produce a performance characteristic curve which, as a function of the manual shifting force or a shift phase, has ranges with different gradients or proportions with respect to the manual shifting force. Elements (88, 90, 106, 108), upon which a servo-pressure acts, are present in the servo-assistance mechanism (10) for producing the characteristic. In the control system of the servo-assistance mechanism (10), path limitation units and at least one elastic element (84, 110) are provided, upstream from and/or in the servo-assistance mechanism (10), to limit the servo-assistance force in a path-dependent manner for each gate or gear.
公开/授权文献
信息查询
IPC分类:
