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METHOD FOR CONTROLLING THE DOWNHILL SPEED OF A MOTOR VEHICLE BY SWITCHING ON THE POWER TRAIN IN CERTAIN CONDITIONS
METHOD FOR CONTROLLING THE DOWNHILL SPEED OF A MOTOR VEHICLE BY SWITCHING ON THE POWER TRAIN IN CERTAIN CONDITIONS
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机译：在某些情况下通过切换动力传动来控制车辆的下坡速度的方法
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摘要
The invention relates to a method for controlling the downhill speed of a motor vehicle provided with a power train (26). Said method comprises the automatedly controlling the switching-on of the power train and of an "ESP" function for controlling the stability of the vehicle. Said method limits the speed of the vehicle to a target speed during downhill movement, by controlling the brakes of the wheels (24). Said method is characterized in that, in certain conditions where there is a risk of losing control of the speed, particularly due to the slope (8) or to the grip of the wheels, the method automatically controls at least partially switching-on the power train (26) then lowering the target speed below the predefined minimum value determined by the speed ratio involved and the minimum rotational speed of the engine to avoid the stalling thereof.
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