Assembly for adjusting an adjustment element relative to a stationary portion of a vehicle

Patent metadata

Field	Value
Publication number	US-10017976-B2
Application number	US-201715436493-A
Country	US
Kind code	B2
Filing date	Feb 17, 2017
Priority date	May 17, 2016
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

An assembly for adjusting an adjustment element relative to a stationary portion of a vehicle, in particular of a vehicle door relative to a vehicle body comprises a drive motor for electromotively adjusting the adjustment element and an electrically actuatable locking device for locking the adjustment element with the stationary portion of the vehicle in a closed position, wherein the locking device has a locked condition in which the locking device is locked relative to the stationary portion for blocking the adjustment element in the closed position, and an unlocked condition in which the locking device is unlocked for adjusting the adjustment element relative to the stationary portion. A control device serves for controlling the drive motor and the locking device. It is provided that the control device is formed to actuate the drive motor for executing a diagnostic routine, while the locking device is in the locked condition.

First claim

The invention claimed is:

1. An assembly for adjusting an adjustment element relative to a stationary portion of a vehicle, in particular a vehicle door relative to a vehicle body, comprising
a drive motor for electromotively adjusting the adjustment element,
an electrically actuatable locking device for locking the adjustment element with the stationary portion of the vehicle in a closed position, wherein the locking device has a locked condition in which the locking device is locked relative to the stationary portion for blocking the adjustment element in the closed position, and an unlocked condition in which the locking device is unlocked for adjusting the adjustment element relative to the stationary portion, and
a control device for controlling the drive motor and the locking device,
wherein the control device is formed to actuate the drive motor for executing a diagnostic routine, while the locking device is in the locked condition.

2. The assembly according to claim 1 , further comprising an electrically actuatable coupling device which in a coupling, first condition couples the drive motor with a transmission element, in order to exert an adjustment force for adjusting the adjustment element on the transmission element, and in a decoupling, second condition decouples the drive motor from the transmission element.

3. The assembly according to claim 2 , wherein for executing a first diagnostic routine the drive motor is driven, while the coupling device is in the decoupling, second condition.

4. The assembly according to claim 3 , wherein the drive motor is actuated with a predetermined motor voltage and the resulting rotational speed of the drive motor is measured.

5. The assembly according to claim 2 , wherein for executing a second diagnostic routine the drive motor is driven, while the coupling device is in the coupling, first condition.

6. The assembly according to claim 5 , wherein the drive motor is driven and the motor current is measured, in order to detect a system slack in a system including the drive motor, the coupling device and the transmission element with reference to a rise of the motor current.

7. The assembly according to claim 2 , wherein the coupling device has a slipping, third condition in which a first coupling element operatively connected with the drive motor and a second coupling element operatively connected with the transmission element slippingly cooperate.

8. The assembly according to claim 7 , wherein for executing a third diagnostic routine the drive motor is driven, while the coupling device is in the slipping, third condition.

9. The assembly according to claim 8 , wherein the drive motor is driven and the motor current is measured, in order to determine a braking force provided by the coupling device in the slipping, third condition with reference to the motor current.

10. A method for adjusting an adjustment element relative to a stationary portion of a vehicle in which
a drive motor electromotively adjusts the adjustment element,
an electrically actuatable locking device in a locked condition locks the adjustment element with the stationary portion in a closed position, and in an unlocked condition releases the adjustment element for adjusting the adjustment element relative to the stationary portion, and
a control device controls the drive motor and the locking device,
wherein the control device actuates the drive motor for executing a diagnostic routine, while the locking device is in the locked condition.

Assignees

• Brose Fahrzeugteile

Inventors

• Herrmann Christian
• Uebel Wolfgang

Classifications

• E05F15/60 Primary

  using electrical actuators · CPC title

• E05F15/40 Primary

  Safety devices, e.g. detection of obstructions or end positions · CPC title

• E05Y2400/502

  of components · CPC title

• E05F15/619

  using flexible or rigid rack-and-pinion arrangements · CPC title

• E05F15/611 Primary

  for swinging wings · CPC title