Patent ID: 6879121
Filing Date: 2005-04-12
Classification: E05F,E05Y,H02P

Abstract:
1. A method for controlling an electric drive motor ( 10 ) of a motor vehicle adjusting drive by means of applying a variable voltage to the drive motor, characterized in that a controllable resistor ( 12 , 18 , 20 , 22 ) is used, wherein said controllable resistor supplies the voltage applied to the drive motor, wherein in order to start the drive motor ( 10 ), a starting voltage is initially applied to the drive motor, wherein said starting voltage is lower than a nominal voltage applied during operation, and the voltage is then increased to the nominal voltage, and wherein an MOS field effect transistor is used as the controllable resistor and is triggered by a regulating circuit ( 14 ) connected to a gate of the MOS field effect transistor, and wherein said regulating circuit ( 14 ) is an amplifier circuit including an operational amplifier.