Patent ID: 6773369
Filing Date: 2004-08-10
Classification: F16H,Y10T

Abstract:
A control device for a transmission which can be shifted automatically and manually in a motor vehicle, having a selector lever for setting at least the forward, neutral, reverse, parking positions and a position for manual gearshifts, it being possible to activate a tip circuit in the position for manual gearshifts, corresponding signals for manually shifting the transmission ratios up or down being output to a control unit in order to control the transmission via position sensors and control lines, and it being possible to determine a failure of the position sensors and/or of the control lines assigned to the position sensors, characterized in that the control device is embodied in terms of circuit technology in such a way that, at least in the parking or reverse position of the selector lever, by triggering at least one of the position sensors at least one of the triggered position sensors can be checked and the failure of a position sensor and/or of a control line can be determined, and in that a fault message is triggered when the failure of a position sensor and/or of a control line is determined.