发明授权
- 专利标题: Method for determining a starting speed in a motor vehicle
- 专利标题(中): 用于确定机动车辆的起动速度的方法
-
申请号: US13642246申请日: 2011-03-02
-
公开(公告)号: US08672806B2公开(公告)日: 2014-03-18
- 发明人: Roland Mair
- 申请人: Roland Mair
- 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: DE102010028282 20100428
- 国际申请: PCT/EP2011/053114 WO 20110302
- 国际公布: WO2011/134704 WO 20111103
- 主分类号: B60W10/00
- IPC分类号: B60W10/00 ; B60W10/02
摘要:
A method for determining a startup gear in a motor vehicle for starting from standstill while maintaining a load limit of the clutch in a the drive train which comprises a drive engine built as an internal combustion engine, a friction clutch, and an automatic stepped transmission. To avoid overloading the clutch, the method determines a load-independent startup gear with which startup would occur under the present starting conditions without considering the current load state of the clutch and without complying with a load limit of the clutch. A load-specific startup gear is determined as the highest startup gear, with which during a startup under the present starting conditions, a predefined load limit of the clutch would be maintained with consideration given to the present load state of the clutch. The startup gear is the lowest of the load-independent startup gear and the at least one load-specific startup gear.
公开/授权文献
信息查询