Collision avoidance for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9296383-B2
Application number	US-201414308031-A
Country	US
Kind code	B2
Filing date	Jun 18, 2014
Priority date	Jun 20, 2013
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

A method for determining a driving maneuver for a motor vehicle includes the steps of ascertaining an imminent accident with an external object, ascertaining characteristic variables for accident damages in different driving maneuvers and determining the driving maneuver whose characteristic variable is indicative of the least accident damage.

First claim

What is claimed is:

1. A method for determining a driving maneuver for a motor vehicle, the method comprising:
detecting at least one external object;
ascertaining whether an accident, in which the motor vehicle is to collide with the detected external object, is imminent;
responsive to ascertaining that the accident is imminent:
assigning a plurality of characteristic variables, each characteristic variable indicating a probability of accident damage, to a corresponding driving maneuver of the motor vehicle from a set of different driving maneuvers available for the motor vehicle;
selecting, from the set of different driving maneuvers, a driving maneuver assigned to a characteristic variable that is indicative of the least accident damage; and
controlling the motor vehicle to carry out the selected driving maneuver,

wherein the set of different driving maneuvers includes at least an instantaneous driving maneuver and an additional driving maneuver.

2. The method of claim 1 , wherein:
the instantaneous driving maneuver is controlled by a driver of the motor vehicle and a first characteristic variable is assigned to the instantaneous driving maneuver,
within the characteristic variables, lower values indicate lower probability of accident damage and higher values indicate greater probability of accident damage, and
a driving maneuver assigned to a characteristic variable that has a lower value than the first characteristic variable is selected.

3. The method of claim 1 , wherein the assignment of each characteristic variable is based on the probability of accident damage being greater than a predetermined value.

4. The method of claim 1 , the method further comprising:
determining a collision speed of the motor vehicle for each driving maneuver, and
wherein the characteristic variables are assigned based on the collision speeds.

5. The method of claim 1 , wherein, for each driving maneuver:
a distribution density of collision speeds of the motor vehicle is determined, and
the corresponding characteristic variable is assigned based on the distribution density.

6. The method of claim 1 , wherein the external object includes a person and the characteristic variables account for an arrangement of transportation of the person.

7. The method of claim 1 , wherein the characteristic variables are based on personal injuries.

8. The method of claim 1 , wherein each characteristic variable accounts for a collision point of the external object on the motor vehicle.

9. A non-transitory computer readable medium having a computer program, which is executable by a processor, comprising:
a program code arrangement having program code for determining a driving maneuver for a motor vehicle, by performing the following:
ascertaining an imminent accident in which the motor vehicle is to collide with a detected external object;
assigning a plurality of characteristic variables, each characteristic variable indicating a probability of accident damage, to a corresponding driving maneuver of the motor vehicle from a set of different driving maneuvers available for the motor vehicle;
selecting, from the set of different driving maneuvers, a driving maneuver assigned to a characteristic variable that is indicative of the least accident damage; and
controlling the motor vehicle to carry out the selected driving maneuver,

wherein the set of different driving maneuvers includes at least an instantaneous driving maneuver and an additional driving maneuver.

10. A device for determining a driving maneuver for a motor vehicle, comprising:
a detection unit for detecting an external object;
a processing unit for selecting the driving maneuver for the motor vehicle, by performing the following:
ascertaining an imminent accident in which the motor vehicle is to collide with the external object,
assigning a plurality of characteristic variables, each characteristic variable indicating a probability of accident damage, to a corresponding driving maneuver of the motor vehicle from a set of different driving maneuvers available for the motor vehicle, and
selecting, from the set of different driving maneuvers, a driving maneuver assigned to a characteristic variable that is indicative of the least accident damage; and

a control unit for controlling the motor vehicle according to the selected driving maneuver,
wherein the set of different driving maneuvers includes at least an instantaneous driving maneuver and an additional driving maneuver.

11. The method of claim 1 , wherein the control of the motor vehicle includes an operation of at least one of: releasing brakes of the motor vehicle, changing a steering angle of the motor vehicle, and accelerating the motor vehicle.

12. The method of claim 11 , wherein the operation involved in the control of the motor vehicle requires one of: overriding the instantaneous driving maneuver and intensifying the operation of the instantaneous driving maneuver.

13. The method of claim 1 , wherein:
within the characteristic variables, higher values indicate lower probability of accident damage and lower values indicate greater probability of accident damage, and
wherein a driving maneuver assigned to a characteristic variable that has a higher value than the first characteristic variable is selected.

14. The computer readable medium of claim 9 , wherein:
the instantaneous driving maneuver is controlled by a driver of the motor vehicle and a first characteristic variable is assigned to the instantaneous driving maneuver,
within the characteristic variables, lower values indicate lower probability of accident damage and higher values indicate greater probability of accident damage, and
a driving maneuver assigned to a characteristic variable that has a lower value than the first characteristic variable is selected.

15. The computer readable medium of claim 9 , wherein the control of the motor vehicle includes an operation of at least one of: releasing brakes of the motor vehicle, changing a steering angle of the motor vehicle, and accelerating the motor vehicle.

16. The computer readable medium of claim 15 , wherein the operation involved in the control of the motor vehicle requires one of: overriding the instantaneous driving maneuver and intensifying the operation of the instantaneous driving maneuver.

17. The device of claim 10 , wherein:
the instantaneous driving maneuver is controlled by a driver of the motor vehicle and a first characteristic variable is assigned to the instantaneous driving maneuver,
within the characteristic variables, lower values indicate lower probability of accident damage and higher values indicate greater probability of accident damage, and
a driving maneuver assigned to a characteristic variable that has a lower value than the first characteristic variable is selected.

18. The device of claim 10 , wherein the control of the motor vehicle includes an operation of at least one of: releasing brakes of the motor vehicle, changing a steering angle of the motor vehicle, and accelerating the motor vehicle.

19. The device of claim 18 , wherein the operation involved in the control of the motor vehicle requires one of: overriding the instantaneous driving maneuver and intensifying the operation of the instantaneous driving maneuver.

Assignees

• Flehmig Folko
• Braeuchle Christian
• Bosch Gmbh Robert

Inventors

• Flehmig Folko
• Braeuchle Christian

Classifications

• B60W2555/00

  Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00 · CPC title

• G01S2013/93185

  Controlling the brakes · CPC title

• G01S2013/932

  using own vehicle data, e.g. ground speed, steering wheel direction · CPC title

• B60T2201/022

  Collision avoidance systems · CPC title

• G08G1/16

  Anti-collision systems (road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08) · CPC title