Motor vehicle having a vehicle body and a chassis

• US 8,140,221 B2
• Filed: 02/11/2008
• Issued: 03/20/2012
• Est. Priority Date: 02/09/2007
• Status: Expired due to Fees

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Becker, Michael, Dietz, Matthias, Koch, Thorsten, Hunn, Thomas, Schulz, Achim
• Primary Examiner(s): Nguyen, Cuong H
• Application Number:
  US12/029,135
• Publication Number:
  US 20080195278A1
• Time in Patent Office: 1,499 Days
• Field of Search: 701/69, 701 37- 38, 280/5.514, 280/124, 280/124.1, 280/86.5, 280/124.106, 280/5.506, 280/5.507, 267/220
• US Class Current: 701/38
• CPC Class Codes: B60G 21/0555 including an actuator inducing vehicle roll
• CPC Class Codes: B60G 21/0556 including a releasable coupling B60G21/0555 takes precedence
• CPC Class Codes: B60G 2202/1351 comprising at least two stabiliser bars parallel to each other

Abstract

A motor vehicle has a vehicle body and a chassis that has at least one wheel suspension device for two opposing wheel. An adjusting device is assigned to each of the wheels. The adjusting devices are coupled to one another by a stabilizer. At least two stabilizer bearings are provided for rotatable support of the stabilizer, and at least one coupling device is provided on the vehicle body for variable torque support of the stabilizer. Accordingly, a reliable level lifting function is provided, based on a sturdy configuration that is both space-saving and weight-saving. The coupling device for torque support of the stabilizer on the vehicle body may have a switchable blocking device and/or at least one spring mechanism.

Claims

1. A chassis for a motor vehicle having a vehicle body, the chassis comprising:

struts;

two opposing wheels with one of said struts assigned to each of said wheels;

rotatably mounted stabilizer;

adjusting devices for roll stabilization assigned to at least one of said wheels or said struts, said adjusting devices coupled with one another via said rotatably mounted stabilizer disposed between said adjusting devices; and

a coupling device acting on said rotatably mounted stabilizer and blocks said stabilizer in a rotationally-fixed manner relative to the vehicle body, wherein a level of the vehicle body with respect to said wheels can be lifted by actuation of said adjusting devices in a same direction and by blocking said stabilizer with respect to the vehicle body.

2. The chassis according to claim 1, wherein said adjusting devices are selected from the group consisting of hydraulically operating adjusting devices and electromechanically operating adjusting devices.

3. The chassis according to claim 1, wherein said coupling device is disposed at a center of said stabilizer.

4. The chassis according to claim 1, wherein said coupling device has a switchable blocking device for torque support of said stabilizer on the vehicle body.

5. The chassis according to claim 4, wherein said stabilizer can be blocked by a form closure.

6. The chassis according to claim 5, wherein said stabilizer has form-fitting elements in an area of said coupling device.

7. The chassis according to claim 4, wherein said stabilizer can be blocked by a friction closure.

8. The chassis according to claim 7, wherein said coupling device has rotatably mounted clamping pieces.

9. The chassis according to claim 8, wherein said clamping pieces are provided at least partially with a rubber coating for blocking said stabilizer.

10. The chassis according to claim 8, wherein said coupling device has a worm drive and said clamping pieces are rotatable via said worm drive.

11. The chassis according to claim 8, wherein said stabilizer has a diameter widened in an area of said clamping pieces.

12. The chassis according to claim 4, further comprising an electric motor for at least one of blocking or releasing the blocking of said stabilizer.

13. The chassis according to claim 1,

wherein said coupling device has a lever connected to said stabilizer;

and

further comprising at least one actuator connecting said lever to the vehicle body.

14. The chassis according to claim 1, further comprising a control device for controlling said adjusting devices and for controlling said coupling device.

15. The chassis according to claim 1, wherein said coupling device has at least one spring mechanism for torque support of said stabilizer on the vehicle body.

16. The chassis according to claim 15, wherein said spring mechanism is a torsion bar disposed generally parallel to said stabilizer.

17. The chassis according to claim 16, wherein said torsion bar is connected in a rotationally fixed manner to a center of said stabilizer.

18. The chassis according to claim 17, further comprising entraining elements, said torsion bar has ends coupled to said entraining elements in a stationary mount on the vehicle.

19. The chassis according to claim 15, wherein said spring mechanism is a plate spring.

20. The chassis according to claim 19, wherein said plate spring is disposed centrally on said stabilizer.