CONTROL SYSTEM FOR CONTROLLING AN ADJUSTING DEVICE OPERATED BY ELECTRIC MOTOR IN A MOTOR VEHICLE

• US 20090090061A1
• Filed: 11/28/2006
• Published: 04/09/2009
• Est. Priority Date: 12/12/2005
• Status: Active Grant

• Current Assignee: Brose Fahrzeugteile GmbH & Company KG Coburg
• Original Assignee: Brose Fahrzeugteile GmbH & Company KG Coburg
• Inventors: Kalb, Roland, Held, Jochen, Buhlheller, Jurgen, Zellmer, Rene, Schlesiger, Markus
• Granted Patent: US 7,843,153 B2
• Time in Patent Office: Days
• US Class Current: 49/31
• CPC Class Codes: E05F 15/00 Power-operated mechanisms for wings motor-operated accessories in locks for completing closing or initiating opening of a wing E05B17/00
• CPC Class Codes: E05F 15/41 Detection by monitoring transmitted force or torque E05F15/48 takes precedence; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
• CPC Class Codes: E05F 15/695 Control circuits therefor
• CPC Class Codes: E05Y 2201/26 Mechanical friction
• CPC Class Codes: E05Y 2201/648 having teeth toothed gearing E05Y2201/71
• CPC Class Codes: E05Y 2400/45 Control modes
• CPC Class Codes: E05Y 2400/50 Fault detection
• CPC Class Codes: E05Y 2400/554 sensing motor load
• CPC Class Codes: E05Y 2400/58 Sensitivity setting or adjustment
• CPC Class Codes: E05Y 2400/818 with visual display
• CPC Class Codes: E05Y 2400/82 Images, Symbols
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2900/55 Windows
• CPC Class Codes: G05B 2219/37624 Detect collision, blocking by measuring change of velocity or torque
• CPC Class Codes: G05B 2219/45242 Door, panel, window operation, opening, closing

Abstract

A control system for controlling an adjustment device which is operated by electric motor in a motor vehicle is provided. The control system comprises an indirect anti-trapping system for detecting a trapping situation between an adjustment element, which is moved by the adjustment device in an adjustment movement along an adjustment path, and a vehicle element. The anti-trapping system stops or reverses the adjustment movement of the adjustment element if a defined threshold value for a mechanical running parameter which results from the adjustment movement is exceeded. The anti-trapping system operates with an analysis unit for analyzing the adjustment movement of the adjustment element, wherein the control system is configured and embodied in such a way that by means of the analysis unit, in an analysis mode, the running parameters of the adjustment device can be checked for mechanical functional faults of the adjustment device.

Claims

1-21. -21. (canceled)

22. A control system for controlling an adjustment device which is operated by electric motor in a motor vehicle, wherein the control system comprises an indirect anti-trapping system for detecting a trapping situation between an adjustment element, which is moved by the adjustment device in an adjustment movement along an adjustment path, and a vehicle element, and the anti-trapping system stops or reverses the adjustment movement of the adjustment element if a defined threshold value for a mechanical running parameter which results from the adjustment movement is exceeded, and wherein the anti-trapping system operates with an analysis unit for analyzing the adjustment movement of the adjustment element, wherein the control system is configured and embodied in such a way that by means of the analysis unit, in an analysis mode, the running parameters of the adjustment device can be checked for mechanical functional faults of the adjustment device in that threshold values for the running parameters which are above or below the threshold values for the detection of an anti-trapping situation are selected in the analysis mode.

23. The control system of claim 22, wherein the functional faults can be determined in the form of above-average difficulty of movement of the adjustment device in certain sections along the adjustment path.

24. The control system of claim 22, wherein the control system has a control unit which generates at least one diagnostic message using the analyzed mechanical running parameters.

25. The control system claim 24, wherein the control unit is embodied in such a way that it generates the diagnostic message automatically or in response to a manual request.

26. The control system of claim 24, wherein the control unit implements the diagnostic message with a characteristic movement sequence of the adjustment element and/or as a visual diagnostic message in the form of a display of a message on a display which is arranged on the motor vehicle.

27. The control system of claim 26, wherein the visual diagnostic message comprises a diagram which represents the traveling movement.

28. The control system of claim 26, wherein the visual diagnostic message has a text component which contains the instructions on how to find more extensive information on fault recovery.

29. The control system of claim 22, wherein the control system carries out rotational speed monitoring of the adjustment device by means of the analysis unit forming mean values over the entire adjustment path.

30. The control system of claim 22, wherein the control system monitors the fluctuations in synchronism of the adjustment device by means of the analysis unit.

31. The control system of claim 22, wherein the control system can be placed in the analysis mode by means of an activation element on the motor vehicle.

32. The control system of claim 31, wherein, in order to activate the analysis mode, the control system additionally requests the inputting of a code by means of the activation element.

33. The control system of claim 22, wherein, in the analysis mode of the control system, the analysis unit of the anti-trapping system has lower threshold values for a maximum torque and/or a maximum change in torque of the adjustment device over a time interval or over a distance interval of the adjustment path.

34. The control system of claim 33, wherein the control system is embodied and configured in such a way that, for critical position areas along the adjustment path at which the lower threshold values are exceeded, the diagnostic message is embodied as a characteristic movement sequence of the adjustment element along the critical position areas.

35. The control system of claim 34, wherein the diagnostic message is additionally embodied as a visual diagnostic message for critical position areas, and said diagnostic message can be displayed by means of a display which is arranged on the motor vehicle.

36. The control system of claim 35, wherein the visual display message is embodied in the form of a diagram which represents the travel path.

37. The control system of claim 35, wherein the visual diagnostic message has a text component which contains instructions on how to find more extensive information on fault recovery.

38. The control system of claim 22, wherein the control system has an electronic memory element for storing the mechanical running parameters which are determined.

39. A window lifting system for a motor vehicle window pane, having a control system for controlling an adjustment device which is operated by electric motor in a motor vehicle, wherein the control system comprises an indirect anti-trapping system for detecting a trapping situation between an adjustment element, which is moved by the adjustment device in an adjustment movement along an adjustment path, and a vehicle element, and the anti-trapping system stops or reverses the adjustment movement of the adjustment element if a defined threshold value for a mechanical running parameter which results from the adjustment movement is exceeded, and wherein the anti-trapping system operates with an analysis unit for analyzing the adjustment movement of the adjustment element, wherein the control system is configured and embodied in such a way that by means of the analysis unit, in an analysis mode, the running parameters of the adjustment device can be checked for mechanical functional faults of the adjustment device in that threshold values for the running parameters which are above or below the threshold values for the detection of an anti-trapping situation are selected in the analysis mode.

40. The window lifting system of claim 39, wherein the control system compares the mechanical running parameters which are determined for the running-in area of the window pane into an assigned window seal with parameter limiting-values for satisfactory running in of the window pane into the seal.

41. Vehicle seat system for a motor vehicle seat having a control system for controlling an adjustment device which is operated by electric motor in a motor vehicle, wherein the control system comprises an indirect anti-trapping system for detecting a trapping situation between an adjustment element, which is moved by the adjustment device in an adjustment movement along an adjustment path, and a vehicle element, and the anti-trapping system stops or reverses the adjustment movement of the adjustment element if a defined threshold value for a mechanical running parameter which results from the adjustment movement is exceeded, and wherein the anti-trapping system operates with an analysis unit for analyzing the adjustment movement of the adjustment element, wherein the control system is configured and embodied in such a way that by means of the analysis unit, in an analysis mode, the running parameters of the adjustment device can be checked for mechanical functional faults of the adjustment device in that threshold values for the running parameters which are above or below the threshold values for the detection of an anti-trapping situation are selected in the analysis mode.

42. An adjustment system for a tailgate of a motor vehicle having a control system for controlling an adjustment device which is operated by electric motor in a motor vehicle, wherein the control system comprises an indirect anti-trapping system for detecting a trapping situation between an adjustment element, which is moved by the adjustment device in an adjustment movement along an adjustment path, and a vehicle element, and the anti-trapping system stops or reverses the adjustment movement of the adjustment element if a defined threshold value for a mechanical running parameter which results from the adjustment movement is exceeded, and wherein the anti-trapping system operates with an analysis unit for analyzing the adjustment movement of the adjustment element, wherein the control system is configured and embodied in such a way that by means of the analysis unit, in an analysis mode, the running parameters of the adjustment device can be checked for mechanical functional faults of the adjustment device in that threshold values for the running parameters which are above or below the threshold values for the detection of an anti-trapping situation are selected in the analysis mode.