Drive assembly for adjusting e.g. tailgate of motor car, sets modulation switching frequency associated with motors to be different from each other at specific time, during the adjusting of provided continuously shifting frequency

摘要

The assembly has electric actuators (2,3) that are provided with a drive motors (2a,3a) and control unit. The control unit provides pulse width modulated (PWM) voltage to drive motors. The displacement of the actuators and tailgate (1) are identical. The PWM switching frequency associated with the drive motors are different from each other at specific time, during the adjusting of provided continuously shifting PWM switching frequency. An independent claim is included for method for adjusting adjustment element.