Motor Vehicle Having a Vehicle Body and a Chassis

• US 20080195278A1
• Filed: 02/11/2008
• Published: 08/14/2008
• Est. Priority Date: 02/09/2007
• Status: Active Grant

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Becker, Michael, Hunn, Thomas, Dietz, Matthias, Schulz, Achim, Kock, Thorsten
• Granted Patent: US 8,140,221 B2
• Time in Patent Office: Days
• US Class Current: 701/37
• 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 motor vehicle, comprising:

a vehicle body;

wheels including two opposing wheels; and

a chassis supporting said vehicle body and having at least one wheel suspension device for said two opposing wheels, said wheel suspension device including;

a stabilizer;

adjusting devices, one of said adjusting devices being associated with each of said opposing wheels, said adjusting devices being coupled by said stabilizer;

at least two stabilizer bearings being provided for rotatable support of said stabilizer; and

at least one coupling device for variable torque support of said stabilizer on said vehicle body.

2. The motor vehicle according to claim 1, wherein a level of said vehicle body with respect to said opposing wheels can be lifted by actuation of said adjusting devices in a same direction and by blocking said stabilizer with respect to said vehicle body.

3. The motor vehicle according to claim 1, wherein said adjusting devices are hydraulic adjusting devices and at least one of said hydraulic adjusting devices is assigned to each of said opposing wheels.

4. The motor vehicle according to claim 1, wherein said adjusting devices are electromagnetic adjusting devices and at least one of said electromagnetic adjusting devices is assigned to each of said opposing wheels.

5. The motor vehicle according to claim 1, wherein said adjusting devices are set up for roll stabilization of the motor vehicle.

6. The motor vehicle according to claim 1, wherein said coupling device is disposed in a front area of the motor vehicle.

7. The motor vehicle according to claim 1, wherein said coupling device is disposed in an area between said two stabilizing bearings.

8. The motor vehicle according to claim 7, wherein said coupling device is disposed at a center of said stabilizer.

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

10. The motor vehicle according to claim 9, wherein said stabilizer can be blocked by a form closure.

11. The motor vehicle according to claim 10, wherein said stabilizer has form-fitting elements in an area of said coupling device.

12. The motor vehicle according to claim 9, wherein said stabilizer is blocked by a friction closure.

13. The motor vehicle according to claim 12, wherein said coupling device has rotatably mounted clamping pieces defining said friction closure.

14. The motor vehicle according to claim 13, wherein said clamping pieces are provided at least partially with a rubber coating for blocking said stabilizer.

15. The motor vehicle according to claim 13, wherein said coupling device has a worm drive and said clamping pieces are rotatable with an aid of said worm drive.

16. The motor vehicle according to claim 13, wherein said stabilizer has a diameter widening in an area of said clamping pieces.

17. The motor vehicle according to claim 9, further comprising an electric motor for at least one of blocking and releasing the blocking of said stabilizer.

18. The motor vehicle according to claim 9,

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

and

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

19. The motor vehicle according to claim 9, further comprising a control device controlling said adjusting devices and controlling said coupling device.

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

21. The motor vehicle according to claim 20, wherein said spring mechanism is a torsion bar disposed generally parallel to said stabilizer.

22. The motor vehicle according to claim 21, wherein said torsion bar is connected in a rotationally fixed manner to a center of said stabilizer.

23. The motor vehicle according to claim 22, wherein said spring mechanism has entraining elements and said torsion bar has ends coupled by said entraining elements.

24. The motor vehicle according to claim 20, wherein said spring mechanism is a plate spring.

25. The motor vehicle according to claim 24, wherein said plate spring is disposed centrally on said stabilizer.