Method And Chassis Arrangement For Controlling The Driving Stability Of A Motor Vehicle

• US 20070198151A1
• Filed: 01/28/2005
• Published: 08/23/2007
• Est. Priority Date: 03/25/2004
• Status: Abandoned Application

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Munster, Martin
• Application Number:
  US10/593,604
• Publication Number:
  US 20070198151A1
• Time in Patent Office: Days
• US Class Current: 701/37
• CPC Class Codes: B60G 17/0162 mainly during a motion involving steering operation, e.g. cornering, overtaking B60G17/0164 takes precedence
• CPC Class Codes: B60G 21/05 between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
• CPC Class Codes: B60G 21/0553 adjustable
• CPC Class Codes: B60G 2200/46 camber angle
• CPC Class Codes: B60G 2800/94 Electronic Stability Program (ESP, i.e. ABS+ASC+EMS)

Abstract

A method for controlling the driving stability of a vehicle, by which a rear camber angle of the wheels of the rear axle is actively adjusted depending on a driving situation, and a front anti-rolling torque is exerted on the front axle and a rear anti-rolling torque is exerted on the rear axle. The inventive method is characterized by a rolling torque distribution which represents the ratio of the rear anti-rolling torque to the front anti-rolling torque is adjusted depending on the rear camber angle of the wheels on the rear axle. The invention also relates to a chassis arrangement for carrying out the inventive method.

Claims

1-4. -4. (canceled)

5. A method for regulating driving stability of a vehicle as a function of a driving condition, the method comprising the steps of:

actively adjusting a rear wheel camber angle of wheels of a rear axle;

exerting a front anti-sway moment, of a front axle, and a rear anti-sway moment, at the rear axle; and

adjusting a sway moment distribution, which is feed back of a ratio of the rear anti-sway moment to the front anti-sway moment, as a function of a rear wheel camber angle of the wheels of the rear axle.

6. The method according to claim 5, further comprising the step of increasing the ratio of the rear anti-sway moment to the front anti-sway moment when the rear wheel camber angle of the wheels of the rear axle is reduced.

7. The method according to claim 5, further comprising the step of only actively adjusting the rear wheel camber angle of the wheels of the rear axle and passively adjusting a front wheel camber angle of the wheels of the front axle.

8. The method according to claim 5, further comprising the step of first regulating the driving stability according to the rear wheel camber angle, and then adapting the sway moment distribution to the adjusted rear wheel camber angle.

9. The method according to claim 5, further comprising the steps of determined driving condition according to a characteristic curve and adjusting the rear wheel camber angle and the way moment distribution according to the driving condition.

10. A chassis arrangement for driving stability regulation of a vehicle, the chassis arrangement comprising:

actuators for adjusting a wheel camber angle of wheels of a rear axle of the vehicle;

a front active stabilizer for adjusting a front anti-sway moment of a front axle;

a rear active stabilizer for adjusting a rear anti-sway moment of the rear axle; and

a control device for adjusting a sway moment distribution, which is feed back of a ratio of the rear anti-sway moment to the front anti-sway moment, as a function of the wheel camber angle of the wheels of the rear axle.

11. The chassis arrangement according to claim 10, wherein the control device increases the ratio of the rear anti-sway moment to the front anti-sway moment when the rear wheel camber angle of the wheels of the rear axle is reduced.

12. The chassis arrangement according to claim 10, wherein only passive wheel camber adjustments are provided at wheel suspensions of wheels of the front axle.