Patent ID: 6633148
Filing Date: 2003-10-14
Classification: H02H

Abstract:
Process of using a rotary electric motor to displace a motor vehicle part between at least two positions, comprising the steps of:generating pulse signals according to rotary motion of the electric motor and supplying said pulse signals to a control unit for controlling the electric motor, performing a first computation with a first parameter set, which is optimized for determination of a first pinching scenario, and via which a first value of instantaneous force acting on the motor vehicle part is determined from the pulse signals acquired at certain first instants defining a first scanning rate, parallel to the first computation, performing at least a second computation with a second parameter set, which differs from the first parameter set and which is optimized for determination of a second pinching scenario, and via which a second value for the instantaneous force acting on the motor vehicle part is determined from the pulse signals acquired at certain second instants defining a second scanning rate different from said first scanning rate, using the computed first and second values for the instantaneous action of the force to determine whether the electric motor is to be turned off or reversed, or is to continue to run.