Patent ID: 8442734
Filing Date: 2013-05-14
Classification: B60W,F16D,F16H,Y10T

Abstract:
1. A power-assistance method for control by a computer of a vehicle provided with a motive power assembly connected to driving wheels by a clutch, comprising: detecting, by the computer, a change of a gear ratio and, when the change of the gear ratio is detected, storing points related to a clutch pedal position, an engine speed of rotation, a speed of rotation of the wheels, and a torque transmitted by the clutch; determining, by the computer, whether each of the stored points falls within one of a plurality of intervals of a clutch characteristic curve; for each interval of the plurality of intervals, averaging, by the computer, the stored points determined to fall into the interval to determine an average value of the stored points and storing the average value in a memory; determining, by the computer, a reliability coefficient that is a function of a reliability of the clutch characteristic curve, the reliability coefficient being a lower value at a start of use of the vehicle and increasing with use of the vehicle; updating, by the computer, the clutch characteristic curve according to the following equation: where CC determining, by the computer, a torque transmitted by the clutch according to the updated clutch characteristic curve; and releasing, by the computer, a brake of the vehicle when the torque transmitted by the clutch exceeds a torque required for the vehicle to pull away.