Invention Grant
US09546710B2 Procedure for engaging a form-locking shift element to realize a gear in an automatic transmission, whereat at least one further friction shift element is to be engaged to realize the gear to be activated
有权
用于接合形式锁定换挡元件以实现自动变速器中的齿轮的步骤,其中至少一个另外的摩擦换档元件将被接合以实现待激活的齿轮
- Patent Title: Procedure for engaging a form-locking shift element to realize a gear in an automatic transmission, whereat at least one further friction shift element is to be engaged to realize the gear to be activated
- Patent Title (中): 用于接合形式锁定换挡元件以实现自动变速器中的齿轮的步骤,其中至少一个另外的摩擦换档元件将被接合以实现待激活的齿轮
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Application No.: US14195896Application Date: 2014-03-04
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Publication No.: US09546710B2Publication Date: 2017-01-17
- Inventor: Georg Mihatsch , Andreas Schmidt
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, PLLC
- Agent Michael J. Bujold
- Priority: DE102013205564 20130328
- Main IPC: B60W10/02
- IPC: B60W10/02 ; B60W10/04 ; F16H3/38 ; F16H61/04

Abstract:
A method of engaging a form-interlocking shifting element to obtain a gear in an automatic transmission in which at least one further, frictional shifting element is involved in obtaining the gear to be engaged and a shifting element, not involved in obtaining the gear to be engaged but which serves as a synchronizing shifting element, is actuated in order to synchronize the interlocking shifting element to be engaged. The further, frictional shifting element, involved in engaging the gear, is engaged and then disengaged, to a defined extent, to bring the frictional shifting element to a slipping condition, in order to ensure the engagement of the interlocking shifting element.
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