Plausibilization of sensor signals in the event of a collision

• US 8,150,575 B2
• Filed: 03/13/2006
• Issued: 04/03/2012
• Est. Priority Date: 04/07/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Ewerhart, Frank, Marchthaler, Reiner, Lich, Thomas, Kroeninger, Mario, Stabrey, Stephan
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): MARC-COLEMAN, MARTHE Y
• Application Number:
  US11/887,531
• Publication Number:
  US 20090132112A1
• Time in Patent Office: 2,213 Days
• Field of Search: 701/35, 701/301, 701/29, 701 45- 47, 701 297- 299, 701 301- 303, 701 305- 309, 701/31.1, 342/357.09
• US Class Current: 701/30.3
• 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 method for plausibilizing sensor signals of a vehicle system, the sensor signals being monitored with regard to compliance with one plausibility criterion or a plurality of plausibility criteria with the aid of a plausibilization algorithm. The function of the vehicle system is able to be maintained even in critical driving situations, in particular following a collision, if the driving status of the vehicle is monitored with regard to a collision and the plausibilization algorithm is modified if a collision was detected.

Claims

1. A method for plausibilizing sensor signals of a vehicle system of a vehicle, the method comprising:

checking the sensor signals with regard to compliance with at least one plausibility criteria with the aid of a corresponding algorithm, wherein a driving status of the vehicle is monitored with regard to a collision, and the checking includes determining whether a value of the sensor signals exceeds a plausible range; and

modifying the at least one plausibility criterion if a collision is detected,

wherein the modifying includes broadening the plausible range for the detected collision.

2. The method of claim 1, wherein the sensor signals are filtered prior to the plausibilization, and at least one filter parameter is modified if a collision is detected.

3. The method of claim 1, wherein a value range or a gradient of the sensor signals is monitored within a framework of the plausibilization.

4. The method of claim 1, wherein a monitored sensor signal is a signal from at least one of a yaw rate, an acceleration rate, a wheel speed, and an angle sensor.

5. The method of claim 1, wherein the plausibility criterion is modified as a function of at least one of the force and a location of the collision.

6. The method of claim 1, wherein the sensor signals are filtered prior to the plausibilization, and at least one filter parameter is modified if a collision is detected, and wherein a value range or a gradient of the sensor signals is monitored within a framework of the plausibilization.

7. The method of claim 6, wherein a monitored sensor signal is a signal from at least one of a yaw rate, an acceleration rate, a wheel speed, and an angle sensor.

8. The method of claim 7, wherein the plausibility criterion is modified as a function of at least one of the force and a location of the collision.

9. The method of claim 6, wherein the plausibility criterion is modified as a function of at least one of the force and a location of the collision.

10. A device for plausibilizing sensor signals of a vehicle system of a vehicle, comprising:

an electronic device having a plausibilization algorithm, which checks at least one sensor signal for compliance with a specified plausibility criterion to determine whether a value of the sensor signals exceeds a plausible range; and

a sensor system for collision monitoring, and whose output signals are processed by the electronic device or by another electronic device, wherein at least one plausibility criterion is modified if a collision is detected;

wherein the modifying includes broadening the plausible range for the detected collision.

11. The device of claim 10, wherein the sensor system for collision monitoring includes at least one of an acceleration sensor and a pressure sensor.

12. The device of claim 10, wherein the sensor system for collision monitoring is able to detect at least one of a force and a location of the collision.

13. The device of claim 10, wherein sensors of an airbag system are used as the sensors for the monitoring of the collision.

14. The device of claim 10, wherein at least one environment sensor is used for the monitoring of the collision.

15. The device of claim 10, wherein at least one of a video sensor, a radar sensor, a lidar sensor, and an ultrasonic sensor is used for a monitoring of a collision.

16. The device of claim 10, wherein the sensor system for collision monitoring includes at least one of an acceleration sensor and a pressure sensor, and wherein the sensor system for collision monitoring is able to detect at least one of a force and a location of the collision.

17. The device of claim 16, wherein sensors of an airbag system are used as the sensors for the monitoring of the collision.

18. The device of claim 16, wherein at least one environment sensor is used for the monitoring of the collision.

19. The device of claim 16, wherein at least one of a video sensor, a radar sensor, a lidar sensor, and an ultrasonic sensor is used for a monitoring of a collision.