Method for operating a motor vehicle, method for roll compensation of a motor vehicle, and motor vehicle

Patent metadata

Field	Value
Publication number	US-10434834-B2
Application number	US-201515536038-A
Country	US
Kind code	B2
Filing date	Nov 18, 2015
Priority date	Dec 15, 2014
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A method for operating a motor vehicle with a chassis arrangement having at least two vibration dampers. A body control is carried out at least partially with the vibration dampers. The chassis arrangement further has at least one stabilizer. During transverse accelerations below a threshold acceleration the stabilizer contributes to the body control less than the vibration dampers and contributes more than the vibration dampers from the threshold acceleration upward.

First claim

The invention claimed is:

1. A method for operating a motor vehicle with a chassis arrangement having at least two vibration dampers and at least one stabilizer, the method comprising:
performing at least partial body control by the at least two vibration dampers; and
performing the at least partial body control by the at least one stabilizer, wherein during transverse accelerations the at least one stabilizer contributes to the body control less than the at least two vibration dampers below a threshold acceleration and contributes more than the at least two vibration dampers above the threshold acceleration.

2. The method according to claim 1 , wherein the at least one stabilizer is configured as a passive stabilizer with a progressive characteristic.

3. The method according to claim 1 , wherein the at least one stabilizer is configured as a nonlinear torsion bar.

4. The method according to claim 1 , wherein the at least one stabilizer is switchable and is switched off at transverse accelerations below the threshold acceleration and is switched on at transverse accelerations greater than or equal to the threshold acceleration.

5. The method according to claim 1 , wherein only the at least one stabilizer performs at least partial roll compensation at accelerations greater than or equal to the threshold acceleration.

6. The method according to claim 1 , wherein the threshold acceleration is between 3 m/s 2 and 4 m/s 2 .

7. The method according to claim 1 , wherein during transverse accelerations below the threshold acceleration, a resulting roll angle of the motor vehicle is at least partially compensated by the at least two vibration dampers.

8. The method according to claim 7 , wherein the roll angle of the motor vehicle is completely compensated at transverse accelerations below the threshold acceleration.

9. The method according to claim 1 , wherein during transverse accelerations greater than or equal to the threshold acceleration a resulting roll angle of the motor vehicle is at least partially compensated by the at least two vibration dampers and the at least one stabilizer.

10. The method according to claim 1 , wherein during transverse accelerations greater than or equal to the threshold acceleration a resulting roll angle of the motor vehicle is at least partially compensated solely by the at least one stabilizer.

11. A method for roll compensation in a motor vehicle body by at least two different roll compensation arrangements, wherein a roll angle of the motor vehicle body is compensated depending on a transverse acceleration of a motor vehicle,
performing at least partial roll compensation by a first roll compensation arrangement that contributes more to the roll compensation than a second roll compensation arrangement in a range of a transverse acceleration from 0 up to a first threshold acceleration; and
performing the at least partial roll compensation by the second roll compensation arrangement that contributes more to the roll compensation than the first roll compensation arrangement in a range of a transverse acceleration greater than the first threshold acceleration, wherein the roll angle is at least partially compensated in each instance.

12. The method according to claim 11 , wherein the roll angle of the motor vehicle body is at least partially compensated by the first roll compensation arrangement and the second roll compensation arrangement based at least in part on the transverse acceleration of the motor vehicle from the first threshold acceleration to a second threshold acceleration, and the roll angle is compensated at least partially solely through the second roll compensation arrangement from the second threshold acceleration upward.

13. The method according to claim 12 , wherein, depending on the transverse acceleration of the motor vehicle, the roll angle of the motor vehicle body is compensated at least partially solely by the second roll compensation arrangement from the second threshold acceleration to a third threshold acceleration, and the roll angle is at least partially compensated at least partially by the first roll compensation arrangement and the second roll compensation arrangement from the third threshold acceleration upward.

14. The method according to claim 11 , wherein the second roll compensation arrangement is switched off at a transverse acceleration of the motor vehicle in the range of a transverse acceleration from 0 to the first threshold acceleration.

15. A motor vehicle with a chassis arrangement comprising:
at least two vibration dampers, wherein body control can be carried out at least partially with the at least two vibration dampers; and
at least one stabilizer.

16. The motor vehicle according to claim 15 , wherein the chassis arrangement has two stabilizers.

17. The motor vehicle according to claim 15 , wherein the at least one stabilizer is switchable depending on a transverse acceleration of the motor vehicle.

18. The motor vehicle according to claim 15 , wherein the at least one stabilizer is configured as a nonlinear torsion bar.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Ackermann Norbert
• Baalmann Helmut
• Förster Andreas
• Greger Sven
• Heyn Steffen
• Kirchner Holger
• Krüger Sven Philip
• Manger Thomas
• Marquar Hendrik
• Maurischat Christian
• Rappelt Stefan
• Schwarz Alexander
• Seiler Jens
• Thomae Achim
• Triebel Michael

Classifications

• B60G2400/104

  lateral or transversal with regard to vehicle · CPC title

• B60G2500/10

  Damping action or damper · CPC title

• B60G2800/012

  Rolling condition · CPC title

• B60G21/073

  between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected · CPC title

• B60G2800/85

  System Prioritisation · CPC title