发明名称 METHOD FOR CONTROLLING AN AUTOMATED STEP-BY-STEP VARIABLE-SPEED TRANSMISSION
摘要 <p>A method of controlling a multi-step transmission which is connected, via a friction clutch or by a torque converter, to a engine, and, via an axle, to wheels such that when the vehicle is stationary, the engine is running and the drivetrain is disengaged, rolling of the vehicle is prevented or restricted by a shift of the multi-step transmission. The method to prevent rolling includes the step that when the multi-step transmission is in neutral, a safety function is activated, in which actuation of a shift operation element, the accelerator and brake pedals and the current rolling speed are detected by sensors and, if the driving operation elements have not been actuated, then if a predefined rolling speed limit is exceeded, the friction clutch is disengaged if necessary, a starting gear is engaged and the friction clutch is engaged.</p>
申请公布号 EP2173595(B1) 申请公布日期 2011.08.31
申请号 EP20080785925 申请日期 2008.07.04
申请人 ZF FRIEDRICHSHAFEN AG 发明人 PETZOLD, RAINER
分类号 B60W10/10;B60W30/18;F16H61/21 主分类号 B60W10/10
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