Method for determining slippage or difference rotation speed at closed clutch of powertrain of vehicle, involves measuring rotation speed of drive motor in drive motor side of closed clutch

摘要

The method involves measuring rotation speed of drive motor (1) in the drive motor side (3a) of closed clutch (3). The slippage or difference rotation speed at closed clutch along rotational torque flux direction is determined from measured rotation speed of drive motor and assumed instantaneous transmission ratio of gear boxes (5,7).