Large animal vehicle collision safety apparatus and method

Patent metadata

Field	Value
Publication number	US-9387839-B2
Application number	US-201313862814-A
Country	US
Kind code	B2
Filing date	Apr 15, 2013
Priority date	Apr 16, 2012
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

Embodiments herein relate to a large animal collision vehicle safety apparatus and method. At least one sensor detects a first acceleration in a longitudinal direction of a host vehicle. A first determination signal is generated from the detected acceleration. At least one further sensor detects a second acceleration in a vertical direction, and/or at least one still further sensor detects an angular velocity about an axis extending in a lateral direction of the host vehicle. A second determination signal is generated from the detected acceleration in a vertical direction. A third determination signal is generated from the detected angular velocity. Judging means judge whether the vehicle has suffered a large animal collision through at least comparing the first, second and/or third determination signals with preset reference signals. Braking intervention of the host vehicle is triggered when the vehicle is judged to have suffered a large animal collision.

First claim

What is claimed is:

1. A large animal collision vehicle safety apparatus comprising:
at least one sensor for detecting values of a first acceleration in a longitudinal direction of a host vehicle over time;
means for generating a first determination signal from the detected first acceleration values;
at least one further sensor for detecting values of a second acceleration in a downward vertical direction over time as a rear suspension of the host vehicle is compressed;
means for generating a second determination signal from the detected second acceleration values;
means for judging whether the vehicle has suffered a large animal collision through at least comparing the generated determination signals with preset reference signals based on specific combinations of values indicative of a large animal collision obtained through a simulation and/or full scale trial performed for a specific vehicle model corresponding to the host vehicle; and
means for triggering braking intervention of the host vehicle when the vehicle is judged to have suffered a large animal collision.

2. An apparatus according to claim 1 further comprising at least one still further sensor for detecting values of an angular velocity about an axis extending in a lateral direction of the host vehicle over time, and the means for generating a third determination signal from the detected angular velocity values, and wherein the means for generating the first, second and third determination signals are operable to generate the first, second and third determination signals as first and second velocity signals and an angle signal, respectively, through integrating the first and second accelerations and the angular velocity with respect to time.

3. An apparatus according to claim 1 further comprising at least one still further sensor for detecting values of an angular velocity about an axis extending in a lateral direction of the host vehicle over time, and means for generating a third determination signal from the detected angular velocity values, and wherein the means for generating the first, second and third determination signals are operable to generate the first, second and third determination signals through integrating the first and second accelerations and the angular velocity with respect to time to obtain first and second velocity signals and an angle signal, respectively, and integrating the first and second velocity signals and the angle signal with respect to time.

4. An apparatus according to claim 1 further comprising at least one remote sensor for detecting objects forward of the host vehicle and for outputting signals representative thereof, wherein the means for judging whether the vehicle has suffered a large animal collision are arranged to include signals output from the at least one remote sensor in the large animal collision judgment.

5. An apparatus according to claim 4 wherein the at least one remote sensor comprises at least one of a RADAR technology sensor, a LIDAR technology sensor, a vision technology sensor or fusions of sensors based on one or more of these sensing technologies.

6. An apparatus according to claim 1 wherein the means for generating the first and second determination signals comprise one or more microprocessors.

7. The apparatus of claim 1 wherein the means for triggering braking intervention of the host vehicle is operable to trigger braking intervention without requiring deployment of an airbag or automatic tensioning of a seat belt.

8. A large animal vehicle collision safety method comprising:
detecting values of a first acceleration in a longitudinal direction of a host vehicle over time;
generating a first determination signal from the detected first acceleration values;
detecting values of a second acceleration in a downward vertical direction over time as a rear suspension of the host vehicle is compressed;
generating a second determination signal from the detected second acceleration values;
judging whether the vehicle has suffered a large animal collision through at least comparing the generated determination signals with preset reference signals based on specific combinations of values indicative of a large animal collision obtained through a simulation and/or full scale trial performed for a specific vehicle model corresponding to the host vehicle; and
triggering braking intervention of the host vehicle when the vehicle is judged to have suffered a large animal collision.

9. The method of claim 8 further comprising detecting values of angular velocity about an axis extending in a lateral direction of the host vehicle over time, generating a third determination signal from the detected angular velocity values, and judging whether the vehicle has suffered a large animal collision through at least comparing the first, second and third determination signals with preset reference signals based on specific combinations of values indicative of a large animal collision obtained through a simulation and/or full scale trial performed for a specific vehicle model corresponding to the host vehicle.

10. The method of claim 9 wherein generating the first determination signal comprises generating the first determination signal as a first velocity signal through integrating the first acceleration values with respect to time, generating the second determination signal comprises generating the second determination signal as a second velocity signal through integrating the second acceleration values with respect to time, and generating the third determination signal comprises generating the third determination signal as an angle signal through integrating the angular velocity values with respect to time.

11. The method of claim 9 wherein generating the first determination signal comprises generating the first determination signal through second order integration of the first acceleration values, generating the second determination signal comprises generating the second determination signal through second order integration of the second acceleration values, and generating the third determination signal comprises generating the third determination signal through second order integration of the angular velocity values.

12. The method of claim 8 wherein triggering braking intervention of the host vehicle occurs without requiring deployment of an airbag or automatic tensioning of a seat belt of the vehicle.

13. An automotive vehicle comprising:
a rear suspension;
at least one sensor for detecting values of a first acceleration in a longitudinal direction of the vehicle over time;
means for generating a first determination signal from the detected first acceleration values;
at least one further sensor for detecting values of a second acceleration in a downward vertical direction over time as the rear suspension is compressed;
means for generating a second determination signal from the detected second acceleration values;
means for judging whether the vehicle has suffered a large animal collision through at least comparing the generated determination signals with preset reference signals based on specific combinations of values indicative of a large animal collision obtained through simulations and/or full scale trials performed for a specific vehicle model corresponding to the host vehicle; and
means for triggering braking intervention of the vehicle when the vehicle is judged to have suffered a large animal collision.

14. The vehicle according to claim 13 further comprising at least one still further sensor for detecting values of an angular velocity about an axis extending in a lateral direction of the vehicle over time, and

Assignees

• Volvo Car Corp

Inventors

• Hardaa Peter
• Nilsson Paer

Classifications

• B60T7/22 Primary

  initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle {, or by means of contactless obstacle detectors mounted on the vehicle} · CPC title

• B60R2021/01259

  Brakes · CPC title

• B60R2021/01325

  Vertical acceleration · CPC title

• B60R2021/01327

  Angular velocity or angular acceleration · CPC title