Method and device for stabilizing a vehicle

• US 6,873,897 B2
• Filed: 11/23/2001
• Issued: 03/29/2005
• Est. Priority Date: 12/23/2000
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Faye, Ian, Leimbach, Klaus-Dieter
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): To, Tuan C
• Application Number:
  US10/451,574
• Publication Number:
  US 20040078131A1
• Time in Patent Office: 1,222 Days
• Field of Search: 280/5.502, 280/86.75, 280/6.16, 280/735, 280/91, 267/64.27, 267/64.28, 267/64.16, 267/64.24, 188/322.19, 701/45, 701/37, 701/70, 701/36, 180/271, 180/282, 180/735, 180/140, 180/142, 180/443, 180/446, 340/429, 340/440, 340/436, 340/689, 340/438, 340/439, 340/471
• US Class Current: 701/70
• CPC Class Codes: B60T 2230/03 Overturn, rollover
• CPC Class Codes: B60T 8/17552 responsive to the tire sideslip angle or the vehicle body slip angle
• CPC Class Codes: B60T 8/17554 specially adapted for enhancing stability around the vehicles longitudinal axle, i.e. roll-over prevention road vehicle drive control systems for roll-over prevention otherwise than by controlling a particular sub-unit B60W30/04

Abstract

A method of stabilizing a vehicle involving the following steps is described: recording characteristic actual values that describe the driving condition of a vehicle; determining setpoint values that are at least partially assigned to the actual values; comparing actual values and setpoint values and influencing actual values based on comparison results, one of the recorded actual values being characteristic of the roll state of the vehicle, and one of the setpoint values being assigned to the recorded actual value that is characteristic of the roll state of the vehicle. A device for stabilizing a vehicle is also described.

Claims

1. A method of stabilizing a vehicle, comprising:

recording characteristic actual values that correspond to a driving condition of the vehicle;

determining setpoint values that are at least partially assigned to the characteristic actual values;

comparing the characteristic actual values and the setpoint values; and

influencing the characteristic actual values based on comparison results;

wherein one of the characteristic actual values is characteristic of a roll state of the vehicle and one of the setpoint values is assigned to one of the characteristic actual values that is characteristic of the roll state of the vehicle, and wherein a pressure change in an air spring of the vehicle is one of the characteristic actual values that is characteristic of the roll state of the vehicle.

2. The method of claim 1, wherein one of the characteristic actual values is a float angle and one of the setpoint values is assigned to the float angle.

3. The method of claim 1, wherein setpoint values are determined from input values of a vehicle speed and a steering angle.

4. The method of claim 1, wherein the characteristic actual values are influenced by at least one of a braking intervention and an engine intervention.

5. The method of claim 1, wherein the method is implemented in a vehicle combination for roll regulating a tractor vehicle and one of a trailer and a semitrailer.

6. A device for stabilizing a vehicle, comprising:

a first arrangement to record characteristic actual values that correspond to a driving condition of the vehicle;

a second arrangement to determine setpoint values that are at least partially assigned to the characteristic actual values;

a third arrangement to compare the characteristic actual values and the setpoint values;

a fourth arrangement to influence the characteristic actual values based on comparison results; and

a fifth arrangement to measure a pressure in an air spring of the vehicle;

wherein one of the characteristic actual values is characteristic of a roll state of the vehicle, and one of the setpoint values is assigned to one of the characteristic actual values that is characteristic of the roll state of the vehicle, and wherein a pressure change in the air spring is one of the characteristic actual values that is characteristic of the roll state of the vehicle.

7. The device of claim 6, wherein one of the characteristic actual values is a yaw rate and one of the setpoint values is assigned to the yaw rate.

8. The device of claim 6, wherein one of the characteristic actual values is a float angle and one of the setpoint values is assigned to the float angle.

9. The device of claim 6, further comprising:

an arrangement to measure a roll angle and the roll angle is one of the characteristic actual values that is characteristic of the roll state of the vehicle.

10. The device of claim 6, further comprising:

an arrangement to measure a vehicle speed; and

an arrangement to measure a steering angle;

wherein the setpoint values are determined from input values of the vehicle speed and the steering angle.

11. The device of claim 6, further comprising:

an arrangement to influence at least one of a braking system and an engine;

wherein the characteristic actual values are influenced by at least one of a braking intervention and an engine intervention.

12. The device of claim 6, further comprising:

an actuator, wherein a roll angle is influenced by the actuator.

13. The device of claim 6, further comprising:

roll regulation devices configured for a tractor vehicle and one of a trailer and a semitrailer in a vehicle combination.

14. A method of stabilizing a vehicle, comprising:

recording characteristic actual values that correspond to a driving condition of a vehicle;

determining setpoint values that are at least partially assigned to the characteristic actual values;

comparing the characteristic actual values and the setpoint values; and

influencing the characteristic actual values based on comparison results;

wherein one of the characteristic actual values is characteristic of a roll state of the vehicle, and one of the setpoint values is assigned to one of the characteristic actual values that is characteristic of the roll state of the vehicle, and wherein a pressure change in an air spring of the vehicle is one of the characteristic actual values that is characteristic of the roll state of the vehicle, and wherein one of the characteristic actual values is a yaw rate and one of the setpoint values is assigned to the yaw rate.