Patent ID: 8390224
Filing Date: 2013-03-05
Classification: H02P

Abstract:
1. A drive device for an adjusting device for adjusting a vehicle component of a vehicle, the drive device comprising an electronically commutated motor and an electronic control device which actuates the electronically commutated motor with an actuating voltage, wherein the electronic control device is configured to adapt a signal form of the actuating voltage on the basis of at least one operating parameter in order to optimize at least one of power output, acoustics, electromagnetic irradiation and heating of the drive device, the electronic control device comprising a microcomputer which selects the signal form of the actuating voltage on the basis of the at least one operating parameter from a number of predefined signal forms which are stored in a memory medium of the electronic control unit, wherein the signal form is a basic form of a signal of the actuating voltage and different signal forms, which are respectively assigned to an operating state of the drive device, are stored in the memory medium, wherein the electronic control device is configured to adapt the signal form of the actuating voltage selectively to at least one of an approximately sinusoidal signal form or to an approximately square-wave signal form each stored in the memory medium, so that the signal form of the actuating voltage may be selected on the basis of the at least one operating parameter from at least one approximately sinusoidal and at least one approximately square-wave signal form, respectively, stored in the memory medium, and wherein the microcomputer determines a signal form of the actuating voltage during an operation of the drive device on the basis of the at least one operating parameter such that at least one of the power output, the acoustics, the electromagnetic irradiation and the heating of the drive device is optimized, and stores the determined signal form in the memory medium so that the determined signal form may be later selected for adapting the signal form of the actuating voltage.