Method for testing a stabilizing system of a motor vehicle by tilting and rotating the vehicle

• US 6,962,074 B2
• Filed: 02/09/2005
• Issued: 11/08/2005
• Est. Priority Date: 03/31/1999
• Status: Expired due to Fees

• Current Assignee: Siemens AG, Audi AG (Volkswagen AG)
• Original Assignee: Siemens AG, Audi AG (Volkswagen AG)
• Inventors: Seyberth, Karl, Lenzen, Sascha, Wittig, Gero, Knupfer, Goetz, Flaig, Bernhard, Wolfrum, Klaus
• Primary Examiner(s): MCCALL, ERIC SCOTT
• Application Number:
  US11/052,137
• Publication Number:
  US 20050145034A1
• Time in Patent Office: 272 Days
• Field of Search: 736/69, 736/70, 731/21, 731/12, 701/29, 701/36, 701/37, 701/38, 701/70, 701/71, 701/82
• US Class Current: 73/121
• CPC Class Codes: B66F 7/10 with platforms supported directly by jacks
• CPC Class Codes: G01M 17/06 Steering behaviour; Rolling behaviour
• CPC Class Codes: Y10T 29/49778 with aligning, guiding, or instruction
• CPC Class Codes: Y10T 29/4978 Assisting assembly or disassembly
• CPC Class Codes: Y10T 29/49998 Work holding
• CPC Class Codes: Y10T 29/53365 Multiple station assembly apparatus
• CPC Class Codes: Y10T 29/534 Multiple station assembly or disassembly apparatus

Abstract

A dynamic test fixture has a support frame (3) whose dimensions (31) in the direction of a transverse axis (y) are smaller than a distance between the wheels of a vehicle (8). Via a first unit (71a, 71b, 71c) of a controllable adjusting device (7), the support frame (3) is displaced approximately vertically underneath the vehicle (8) so that the vehicle (8) is moved into a raised testing position. A second unit of the controllable adjusting device (7) acts on the support frame (3) in such a way that the vehicle (8) is moved into at least one position (Nx, Ny) that deviates from the horizontal position. A third unit (73) influences the support frame (3) in such a way that the vehicle (8), which it is situated in the raised testing position, is briefly rotated about a vertical axis (z). The test fixture is advantageously used to test a stabilizing system (ESP device) of the vehicle (8).

Claims

1. A method, comprising:

lifting a vehicle having a stabilizing system to a testing position;

in the testing position and during operation of the stabilizing system, tilting the vehicle for a first period of time into a tilted position that deviates from a horizontal position of the vehicle;

in the testing position and during operation of the stabilizing system, rotating the vehicle for a second period of time around a vertical axis of the vehicle; and

analyzing the operation of the stabilizing system of the vehicle.

2. The method of claim 1, further comprising predetermining respective angular velocities for the tilting step and the rotating step.

3. The method of claim 1, wherein, in the testing step, sensors of the stabilizing system are tested.

4. The method of claim 1, further comprising testing components of the vehicle other than the stabilizing system.