A METHOD FOR CONTROLLING DISENGAGEMENT OF AN AUTOMATED CLUTCH IN A VEHICLE

摘要

A method for controlling disengagement of an automated clutch (3) in a vehicle (1) . A decrease of a first engine rotational speed limit, at which the clutch (3) is disengaged, is initiated upon sensing: -travel of the vehicle (1) in a down slope; -zero displacement of the throttle control (13) . Said first engine rotational speed limit is decreased to a speed where an, in the vehicle arranged, engine idle speed regulator (20) injects an amount of fuel corresponding to a positive engine torque which equals current retarding negative engine torque so that total output torque from the engine (2) is approximately zero. The vehicle accelerating effect due to engine braking torque drop out when the clutch is disengaged will be eliminated.