| 摘要 |
Device for preventing a creep movement of motor vehicles, which have an engine and a transmission connected in series with a fluid medium clutch and having a frictionally engaging element. The device has an engine load sensor for generating a fluid medium signal with a pressure representing the engine load, a control device provided between the frictionally engaging element and a fluid medium source, and a fluid medium line for feeding the fluid medium signal from the engine load sensor to the control device. The control device serves for controlling the power transmission capacity of the frictionally engaging element in a range from zero up to a predetermined value as a function of the pressure of the fluid medium signal supplied, in order to prevent creeping of the vehicle when the engine is not under load. In the fluid medium line, a selector valve is provided, which is capable of assuming a first position, in which a flow of the fluid medium signal in both directions from the engine load sensor to the control device and vice versa is possible, when the pressure of the fluid medium signal is less than a predetermined value, and which is capable of assuming a second position, in which a flow of the fluid medium signal is only possible from the engine load sensor to the control device, when the pressure of the fluid medium signal is greater than the predetermined value. <IMAGE>
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