Invention Grant
- Patent Title: Method for controlling an automatic geared transmission
- Patent Title (中): 用于控制自动齿轮传动装置的方法
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Application No.: US13128056Application Date: 2009-11-05
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Publication No.: US08831804B2Publication Date: 2014-09-09
- Inventor: Rainer Petzold
- Applicant: Rainer Petzold
- 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: DE102008043560 20081107
- International Application: PCT/EP2009/064687 WO 20091105
- International Announcement: WO2010/052273 WO 20100514
- Main IPC: B60K6/36
- IPC: B60K6/36 ; F16H59/00 ; B60W30/18 ; B60W10/10 ; B60W10/02 ; B60W10/11 ; F16H61/16 ; F16H59/54 ; F16H61/21 ; F16H59/44 ; F16H59/22 ; F16H61/20 ; F16H59/56

Abstract:
A method of controlling an automatic geared transmission of a vehicle drive train. The transmission is linked, on the input side, to a hybrid drive which comprising an engine and an electric motor and, on the output side, to an axle drive and wheels. During vehicle stand still with the engine and/or electric motor operating and a disengaged drive train, rolling of the motor vehicle is prevented, or at least limited, by shifting the transmission. When the automatic geared transmission is in the neutral position (Gl=N), a safety function is activated to avoid uncontrolled rolling of the vehicle in which actuation of shift operating elements, the throttle and the brake pedal, as well as the rolling speed, are captured by sensors and in which, when the drive operating elements (shift operating element xSBE=0, throttle xFP=0, brake pedal xBP=0) are not activated, a starting gear is engaged once a predetermined limiting speed (vRoll>vGr) is exceeded.
Public/Granted literature
- US20110218699A1 METHOD FOR CONTROLLING AN AUTOMATIC GEARED TRANSMISSION Public/Granted day:2011-09-08
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