| abstract |
The invention relates to a method for adapting the engine friction torque of a motor vehicle (1), preferably the engine friction torque of a motor vehicle (1) having an automated manual transmission (2), a control device (3), preferably for controlling the engine, transmission and / or Coupling processes are provided, with the aid of the control device (3) the engine (4) being indicated a certain engine torque (M), the control device (3) being reported a first - theoretical - engine friction torque (RM1), preferably determined from stored characteristic maps, and a crankshaft torque (KWM) is determined from the difference between the indicated engine torque (M) and the first engine friction torque (RM1) and the determined crankshaft torque (KWM) is used to control an automatic clutch (5). DOLLAR A A cost-effective adaptation is ensured in that the following process steps are carried out to adapt the first - theoretical - motor friction torque (RM1): a) The clutch (5) is opened completely and the motor (4) is operated in a stationary idling mode operated corresponding idle speed; b) the first - theoretical - engine friction torque (RM1) reported to the control unit (3) when the clutch (5) is idling when the engine (4) is idling; c) from the difference between the currently indicated engine torque (M) and the reported first - theoretical - engine friction torque (RM1), the - theoretically applied - ... |