Drive configuration for the motorized displacement of a displacement element of a motor vehicle

摘要

The invention relates to a drive configuration for the motorized displacement of a displacement element of a motor vehicle, at least one drive having an electrical drive motor, in particular a DC motor, and a drive controller, which is associated with the drive and connected to a supply voltage UV, being provided, the drive not being designed as self-locking, so that in the case of a non-motorized displacement of the displacement element, the drive motor operates as a generator and generates a generator voltage UG. It is proposed that the drive controller is equipped with an overvoltage protector, which can be triggered by exceeding a limiting supply voltage UV, and that the configuration is further made so that the overvoltage protector can additionally be triggered by a non-motorized displacement of the displacement element if a limiting generator voltage UG is exceeded.

主权项

1. A drive configuration for the motorized displacement of a displacement element of a motor vehicle, at least one drive having an electrical drive motor, and a drive controller, which is associated with the drive and connected to a supply voltage at a first supply terminal and a second supply terminal, wherein the first supply terminal is connected to a supply potential and the second supply terminal is connected to a ground potential, the drive not being designed as self-locking, so that in the case of a non-motorized displacement of the displacement element, the drive motor operates as a generator and generates a generator voltage,
wherein the drive controller is equipped with an overvoltage protector, which can be triggered by exceeding a limiting supply voltage across the first supply terminal and the second supply terminal, and the configuration is further made so that the overvoltage protector can additionally be triggered by a non-motorized displacement of the displacement element if a limiting generator voltage is exceeded, wherein two drives are provided, and the drive controller for activating the drive motors of the drives has an H-bridge circuit with overvoltage protector in each case, and the respective corresponding supply terminals of the H-bridge circuits are interconnected.