Patent ID: 8515640
Filing Date: 2013-08-20
Classification: F16D,Y10T

Abstract:
1. A device for determining, while a vehicle is running, a mapping of torque transmitted by a clutch fitted to the vehicle as a function of a position of a clutch control member, the device comprising: the mapping of torque transmitted by a clutch, the mapping being stored in a memory of an electronic control unit, the mapping including torque values between a minimum torque and a maximum torque as a function of the position of the clutch control member, the torque values being divided into a predetermined number of ranges with an average torque being determined for each of the ranges; and updating means for updating the mapping as a function of position thresholds of the clutch control member, the position thresholds including a top threshold, which is a position of the clutch control member where the torque value is the maximum torque, a bottom threshold, which is a position of the clutch control member where the torque value is the minimum torque, and an intermediate threshold, which is a position of the clutch control member between the top threshold and the bottom threshold, wherein the updating means comprises computing means for modifying values of the position thresholds as a function of the minimum and maximum values of positions of the clutch control member recorded in the mapping, and of current values of the position thresholds, such that the torque values covered by each of the ranges changes when the top and bottom position thresholds change.