METHOD AND DEVICE FOR DETERMINING A COLLISION CHARACTERISTIC OF A VEHICLE COLLISION

• US 20160140781A1
• Filed: 06/17/2014
• Published: 05/19/2016
• Est. Priority Date: 06/18/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: KOENIG, Simon, AJANOVIC, Mustafa, LANG, Gunther, JOHN, Dirk, NITSCHKE, Werner
• Granted Patent: US 10,186,090 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 2021/01204 Actuation parameters of safety arrangents
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0133 by integrating the amplitude of the input signal
• CPC Class Codes: B60R 21/0136 responsive to actual contact with an obstacle , e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle monitoring crash strength in combination with passenger seat detection B60R21/01558
• CPC Class Codes: G07C 5/08 Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time

Abstract

A method is provided for determining a collision characteristic of a vehicle collision for triggering safety means of the vehicle. The method has a step of an ascertainment of at least one determination-relevant time segment of a sensor signal representing the vehicle collision before a triggering time for a safety means. The method also has a step of a comparison of at least two features of the sensor signal in the at least one time segment with one another in order to determine the collision characteristic.

Claims

1-10. -10. (canceled)

11. A method for determining a collision characteristic of a vehicle collision for triggering a safety device of a vehicle, the method comprising:

ascertaining at least one determination-relevant time segment of a sensor signal representing the vehicle collision before a triggering time for the safety device, the sensor signal representing one of a signal provided by a sensor and a signal provided and preprocessed by the sensor; and

comparing at least two features of the sensor signal in the at least one time segment with one another in order to determine the collision characteristic.

12. The method as recited in claim 11, wherein the step of ascertaining includes subdividing the sensor signal into the at least one time segment using at least one of a fixed time specification and a variable time specification.

13. The method as recited in claim 11, wherein the step of ascertaining includes subdividing the sensor signal adaptively as a function of at least one of a signal property and a threshold value decision into the at least one time segment.

14. The method as recited in claim 11, wherein the step of ascertaining includes subdividing the sensor signal into the at least one time segment as a function of a comparison of the sensor signal with a further signal.

15. The method as recited in claim 11, wherein the step of comparing includes comparing at least one of signal strengths, integrals, time durations, curvatures, and rises with one another as features of the sensor signal.

16. The method as recited in claim 11, wherein the step of comparing includes:

subdividing the at least one time segment into subsegments as a function of at least one threshold value, and

comparing features of the sensor signal from at least one subsegment of the at least one time segment with one another.

17. The method as recited in claim 16, wherein the step of comparing includes comparing an integral of the sensor signal in a subsegment with a product of a time duration of the subsegment and a threshold value as the features of the sensor signal.

19. An apparatus for determining a collision characteristic of a vehicle collision for triggering a safety device of a vehicle, comprising:

an arrangement for ascertaining at least one determination-relevant time segment of a sensor signal representing the vehicle collision before a triggering time for the safety device, the sensor signal representing one of a signal provided by a sensor and a signal provided and preprocessed by the sensor; and

an arrangement for comparing at least two features of the sensor signal in the at least one time segment with one another in order to determine the collision characteristic.

20. A computer program product having program code for carrying out, when the program code is executed on an apparatus, a method for determining a collision characteristic of a vehicle collision for triggering a safety device of a vehicle, the method comprising:

ascertaining at least one determination-relevant time segment of a sensor signal representing the vehicle collision before a triggering time for the safety device, the sensor signal representing one of a signal provided by a sensor and a signal provided and preprocessed by the sensor; and

comparing at least two features of the sensor signal in the at least one time segment with one another in order to determine the collision characteristic.