Invention Grant
- Patent Title: Method for shifting a motor vehicle automatic transmission with a hydrodynamic torque converter when the vehicle comes to a stop
- Patent Title (中): 当车辆停止时用液力变矩器转换机动车辆自动变速器的方法
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Application No.: US11914470Application Date: 2006-06-07
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Publication No.: US07959536B2Publication Date: 2011-06-14
- Inventor: Markus Eisele , Franz Sorg , Harry Nolzen , Jürgen Blaser , Thomas Vogt
- Applicant: Markus Eisele , Franz Sorg , Harry Nolzen , Jürgen Blaser , Thomas Vogt
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, P.L.L.C.
- Priority: DE102005027098 20050611
- International Application: PCT/EP2006/005417 WO 20060607
- International Announcement: WO2006/133834 WO 20061221
- Main IPC: F16H59/54
- IPC: F16H59/54

Abstract:
A method of shifting an automatic transmission of a motor vehicle having a hydrodynamic converter (6). The method comprising the steps of detecting a presence of predetermined stopping conditions; determining that a driver of the motor vehicle intends to cause the motor vehicle to change from a driving state to a stopped state, based on the presence of one of the predetermined stopping conditions; and automatically shifting the automatic transmission (8) into a standby mode, before the driving state has concluded. The shifting into the standby mode typically occurs when a rotational speed of the hydrodynamic converter (6) decreases to less than a rotational speed (120) of a motor and the retarder apparatus (10), of the automatic transmission, is disengaged no later than a time by which shifting into the standby mode occurs.
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