Method and device for stabilizing a vehicle after a collision

• US 8,386,124 B2
• Filed: 02/15/2006
• Issued: 02/26/2013
• Est. Priority Date: 04/07/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Ewerhart, Frank, Marchthaler, Reiner, Kroeninger, Mario, Stabrey, Stephan
• Primary Examiner(s): Beaulieu, Yonel
• Application Number:
  US11/887,437
• Publication Number:
  US 20100004815A1
• Time in Patent Office: 2,568 Days
• Field of Search: 701/36, 701 37- 41, 701300-302, 701/33.4, 340/438, 340/425.5, 340/463
• US Class Current: 701/33.4
• CPC Class Codes: B60T 2201/024 Collision mitigation systems
• CPC Class Codes: B60T 8/17558 specially adapted for collision avoidance or collision mitigation road vehicle drive control systems for collision avoidance otherwise than by controlling a particular sub-unit B60W30/09
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/20 including control of steering systems
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2720/14 Yaw
• CPC Class Codes: B60W 30/085 Taking automatic action to adjust vehicle attitude in preparation for collision, e.g. braking for nose dropping
• CPC Class Codes: B62D 15/0265 Automatic obstacle avoidance by steering
• CPC Class Codes: B62D 6/003 in order to control vehicle yaw movement, i.e. around a vertical axis B62D6/007 takes precedence

Abstract

A device for stabilizing a vehicle after a collision, including a control device having a regulation algorithm, a sensor system for recording various quantities that describe the vehicle state, and an actuator for carrying out a stabilization intervention. The driving state of the vehicle is monitored for the occurrence of a collision, a setpoint value is calculated for a vehicle movement quantity, the setpoint value being at least partly independent of the steering instruction of the driver, and the vehicle movement quantity of the vehicle is regulated to this setpoint value in the case of a collision.

Claims

1. A device for stabilizing a vehicle after a collision, comprising:

a control device having a regulation algorithm;

a sensor system for recording various quantities of a movement of the vehicle; and

a collision sensor system for recognizing the collision, and for a collision, the regulation algorithm uses a setpoint value for a vehicle movement quantity that accounts for a driver'"'"'s steering input generated a predetermined period of time prior to the collision; and

regulates the movement of the vehicle to this setpoint value.

2. The device of claim 1, wherein an actuator is used in providing a stabilization intervention.

3. The device of claim 1, wherein the setpoint value for the regulated vehicle movement quantity is completely independent of the steering wheel angle provided by the driver.

4. The device of claim 1, wherein the setpoint value for the regulated vehicle movement quantity is determined based on data from an environmental sensor system.

5. The device of claim 1, wherein an actual value of the vehicle movement quantity that is present immediately before the collision is used as the setpoint value.

6. The device of claim 1, wherein after a recognition of collision, an automatic braking intervention is carried out to significantly reduce a longitudinal speed of the vehicle.

7. The device of claim 1, wherein the control device is able to access at least one of a braking system, an active steering system, and an engine controlling system as an actuator for the regulation.

14. The device of claim 1, wherein the setpoint value for a vehicle movement quantity is independent of a steering input of a driver provided after the collision.

8. A method for stabilizing a vehicle after a collision, the method comprising:

monitoring, using a sensor system, a driving state of the vehicle for an occurrence of a collision;

determining a setpoint value for a vehicle movement quantity that accounts for a driver'"'"'s steering input generated a predetermined period of time prior to the collision; and

regulating, for a collision, the vehicle movement to the setpoint value through stabilization interventions.

9. The method of claim 8, wherein a setpoint value for a vehicle movement quantity is used that is independent of a steering input from the driver.

10. The method of claim 8, wherein the setpoint value of the regulated vehicle movement quantity is determined based on data from an environmental sensor system.

11. The method of claim 8, wherein the setpoint value of the regulated vehicle movement quantity is determined based on a position, determined with a GPS system, and based on a digital map.

12. The method of claim 8, wherein after a recognition of a collision, an automatic braking intervention is carried out to significantly reduce a longitudinal speed of the vehicle.

13. The method of claim 8, wherein the regulated vehicle movement quantity includes one of a yaw rate, a lateral speed, and a float angle.

15. The method of claim 8, wherein the setpoint value for a vehicle movement quantity is independent of a steering input of a driver provided after the collision.