Electronic control system, electronic control unit and associated methodology of adapting a vehicle system based on visually detected vehicle occupant information

• US 8,135,511 B2
• Filed: 03/20/2009
• Issued: 03/13/2012
• Est. Priority Date: 03/20/2009
• Status: Active Grant

• Current Assignee: Toyota Motor Corporation
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Demirdjian, David, Varri, Chenna K., Prokhorov, Danil
• Primary Examiner(s): TO, TOAN C
• Application Number:
  US12/408,383
• Publication Number:
  US 20100241309A1
• Time in Patent Office: 1,089 Days
• Field of Search: 701/36, 701/37, 701/38, 701/45
• US Class Current: 701/36
• CPC Class Codes: B60R 21/015 including means for detecting the presence or position of passengers, passenger seats or child seats , and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use

Abstract

An electronic control system, electronic control unit and an associated methodology for adapting a vehicle system are provided. A visual sensor detects a three dimensional profile of an occupant of a vehicle. An electronic control unit determines at least one of three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle, a body-volume of the occupant of the vehicle and body dynamics of the occupant of the vehicle based on the three dimensional profile detected by the visual sensor. The electronic control unit adapts a vehicle system based on at least one of the determined three dimensional locations and orientations, the determined body-volume and the determined body dynamics.

Claims

1. An electronic control system for adapting a vehicle system, comprising:

a visual sensor that detects a three dimensional profile of an occupant of a vehicle;

an electronic control unit configured to determine three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile detected by the visual sensor, and configured to adapt a vehicle system based on the determined three dimensional locations and orientations,

wherein said electronic control unit is configured to determine a body-volume of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle detected by the visual sensor.

2. The electronic control system according to claim 1, wherein the vehicle system is a suspension system, and wherein the electronic control unit is configured to adapt the suspension system based on the determined body-volume of the occupant of the vehicle.

3. The electronic control system according to claim 1, further comprising a contact sensor that detects a weight of the occupant of the vehicle.

4. The electronic control system according to claim 3,

wherein the engine control unit is configured to determine a status of the occupant of the vehicle based on the body-volume of the occupant of the vehicle determined by the engine control unit and the weight of the occupant of the vehicle detected by the contact sensor,

wherein the electronic control unit is configured to compare the status of the occupant of the vehicle to a reference occupant status, and

wherein the electronic control unit is configured to adapt the vehicle system based on whether the comparison between the status of the occupant of the vehicle and the reference occupant status satisfies a predetermined condition.

5. The electronic control system according to claim 1, wherein the vehicle system is an airbag deployment system.

6. The electronic control system according to claim 1, wherein the vehicle system is an in-vehicle sound-system, and wherein adapting the vehicle system includes adjusting sound distribution within the vehicle.

7. The electronic control system according to claim 1, wherein the vehicle system is a climate control system, and wherein adapting the vehicle system includes adjusting temperature distribution within the vehicle.

8. The electronic control system according to claim 1, wherein the vehicle system is a vehicle seat adjustment system or a vehicle occupant restraint adjustment system, and wherein adapting the vehicle system includes adjusting a vehicle seat or a vehicle occupant restraint.

9. The electronic control system according to claim 1, wherein the visual sensor is a three dimensional time of flight camera.

10. An electronic control system for adapting a vehicle system, comprising:

a visual sensor that detects a three dimensional profile of an occupant of a vehicle;

an electronic control unit configured to determine three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile detected by the visual sensor, and configured to adapt a vehicle system based on the determined three dimensional locations and orientations,

wherein said electronic control unit is configured to determine a velocity or acceleration of at least one of the plurality of body parts of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle detected by the visual sensor, and

wherein said electronic control unit is configured to adapt the vehicle system based on the determined velocity or acceleration of the at least one of the plurality of body parts of the occupant of the vehicle.

11. A method for adapting a vehicle system, comprising:

detecting a three dimensional profile of an occupant of a vehicle with a visual sensor;

determining three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile detected by the visual sensor;

adapting a vehicle system based on the determined three dimensional locations and orientations of the plurality of body parts of the occupant of the vehicle; and

determining a body-volume of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle detected by the visual sensor.

12. The method according to claim 11, wherein the vehicle system is a suspension system, and wherein the adapting the vehicle system includes adapting the suspension system based on the determined body-volume of the occupant of the vehicle.

13. The method according to claim 11, further comprising:

detecting a weight of the occupant of the vehicle;

determining a status of the occupant of the vehicle based on the body-volume of the occupant of the vehicle determined by the engine control unit and the weight of the occupant of the vehicle;

comparing the status of the occupant of the vehicle to a reference occupant status; and

adapting the vehicle system based on whether the comparison between the status of the occupant of the vehicle and the reference occupant status satisfies a predetermined condition.

14. A method for adapting a vehicle system, comprising:

detecting a three dimensional profile of an occupant of a vehicle with a visual sensor;

determining three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile detected by the visual sensor;

adapting a vehicle system based on the determined three dimensional locations and orientations of the plurality of body parts of the occupant of the vehicle;

determining a velocity or acceleration of at least one of the plurality of body parts of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle detected by the visual sensor; and

adapting the vehicle system based on the determined velocity or acceleration of the at least one of the plurality of body parts of the occupant of the vehicle.

15. An electronic control unit for adapting a vehicle system, comprising:

a data acquisition interface configured to receive a three dimensional profile of an occupant of a vehicle;

a data processor configured to determine three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile; and

a control interface configured to send signals that adapt a vehicle system based on the determined three dimensional locations and orientations,

wherein said data processor is configured to determine a body-volume of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle.

16. The electronic control unit according to claim 15,

wherein said data processor is configured to determine a status of the occupant of the vehicle based on the body-volume of the occupant of the vehicle determined by the engine control unit and a weight of the occupant of the vehicle detected by a contact sensor,

wherein said data processor unit is configured to compare the status of the occupant of the vehicle to a reference occupant status, and

wherein said data processor is configured to adapt the vehicle system based on whether the comparison between the status of the occupant of the vehicle and the reference occupant status satisfies a predetermined condition.

17. An electronic control unit for adapting a vehicle system, comprising:

a data acquisition interface configured to receive a three dimensional profile of an occupant of a vehicle;

a data processor configured to determine three dimensional locations and orientations of a plurality of body parts of the occupant of the vehicle based on the three dimensional profile; and

a control interface configured to send signals that adapt a vehicle system based on the determined three dimensional locations and orientations,

wherein said data processor is configured to determine a velocity or acceleration of at least one of the plurality of body parts of the occupant of the vehicle based on the three dimensional profile of the occupant of the vehicle, and

wherein said control interface is configured to adapt the vehicle system based on the determined velocity or acceleration of the at least one of the plurality of body parts of the occupant of the vehicle.