Inflatable vehicle occupant positioning system

• US 10,232,814 B2
• Filed: 02/23/2017
• Issued: 03/19/2019
• Est. Priority Date: 01/18/2017
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Gandhi, Umesh N., Prokhorov, Danil V.
• Primary Examiner(s): Goldman, Richard A
• Application Number:
  US15/440,042
• Publication Number:
  US 20180201213A1
• Time in Patent Office: 754 Days
• Field of Search: 701 45, 701 36, 701 49, 280735, 280734, 280740, 280753
• CPC Class Codes: B60N 2/0276 reaction to emergency situations, e.g. crash
• CPC Class Codes: B60N 2/427 Seats or parts thereof displaced during a crash
• CPC Class Codes: B60N 2/914 Hydro-pneumatic adjustments of the shape
• CPC Class Codes: B60R 2021/0102 the monitored value being used for calculating occupant displacement
• CPC Class Codes: B60R 2021/01211 Expansion of air bags
• CPC Class Codes: B60R 2021/01315 monitoring occupant displacement
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• 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
• CPC Class Codes: B60R 21/207 in vehicle seats

Abstract

A vehicle occupant positioning system includes at least one inflatable bladder structured and positioned so as to urge a portion of the body of the vehicle occupant in a predetermined direction when the bladder is inflated.

Claims

1. A vehicle occupant positioning system comprising at least one inflatable bladder mounted in a vehicle seat and arranged so that inflating the at least one inflatable bladder responsive to a determination that a portion of a body of a vehicle occupant lies outside an optimal zone of deployment for an associated airbag causes a portion of the vehicle seat to distend outwardly so as to urge the portion of the occupant'"'"'s body back into the optimal zone of deployment for the associated airbag, and wherein the at least one inflatable bladder includes at least one first bladder and at least one second bladder, the at least one first bladder arranged to be inflatable so as to move a portion of the seat to lift a first upper thigh of a body of a vehicle seat occupant, the at least one second bladder arranged to be inflatable so as to move a portion of the seat to lift a second upper thigh of the body, the at least one first bladder being inflatable to lift the first upper thigh to a level above the second upper thigh when the at least one second bladder is uninflated, the at least one second bladder being inflatable lift the second upper thigh to a level above the first upper thigh when the at least one first bladder is uninflated.

2. The vehicle occupant positioning system of claim 1, further comprising a pressurized fluid source in operative communication with the at least one inflatable bladder, the pressurized fluid source being arranged to provide inflation fluid to inflate the at least one inflatable bladder.

3. The vehicle occupant positioning system of claim 2, further comprising:

at least one sensor configured to detect that a current location of the portion of the body of the vehicle occupant lies outside the optimal zone of deployment for the associated airbag; and

a computing system in operative communication with the at least one sensor and the pressurized fluid source, the computing system being configured to operate the pressurized fluid source to inflate the at least one inflatable bladder responsive to detection that the current location of the portion of the body of the vehicle occupant lies outside the optimal zone of deployment for the associated airbag.

4. The vehicle occupant positioning system of claim 3, wherein the portion of the body of the vehicle occupant the at least one sensor is configured to detect is a head of the occupant.

5. The vehicle occupant positioning system of claim 3, wherein the portion of the body of the vehicle occupant the at least one sensor is configured to detect is a torso of the vehicle occupant.

6. The vehicle occupant positioning system of claim 1 wherein the associated airbag is a front airbag.

7. A vehicle occupant positioning system comprising at least one inflatable bladder mounted in a vehicle seat and arranged so that inflating the at least one inflatable bladder causes a portion of the vehicle seat to distend outwardly so as to urge a torso of a vehicle seat occupant to rotate from a non-forward facing orientation to a forward-facing orientation.

8. A vehicle occupant positioning system comprising at least one inflatable bladder mounted in a vehicle seat and arranged so that inflating the at least one inflatable bladder causes a portion of the vehicle seat to press upwardly on knees of a vehicle seat occupant so as to raise both knees of the seat occupant simultaneously from a first level to a second level higher than the first level.

9. A vehicle occupant positioning system comprising:

at least one inflatable bladder mounted in a vehicle seat and arranged so that inflating the at least one inflatable bladder causes a portion of the vehicle seat to distend outwardly so as to urge a portion of a body of a vehicle seat occupant in a direction away from the vehicle seat;

a pressurized fluid source in operative communication with the at least one inflatable bladder, the pressurized fluid source being arranged to provide inflation fluid to inflate the at least one inflatable bladder;

at least one sensor configured to detect a current location of a portion of a body of a vehicle occupant; and

a computing system in operative communication with the at least one sensor and the pressurized fluid source, the computing system being configured to operate the pressurized fluid source to inflate the at least one inflatable bladder responsive to the current location of the portion of the body detected by the at least one sensor;

wherein the computing system is configured to control a flag indicating whether or not the at least one inflatable bladder is to be inflated prior to deployment of an associated vehicle airbag, responsive to the current location of the portion of the body of the vehicle occupant detected by the at least one sensor.

10. The vehicle occupant positioning system of claim 9, wherein the vehicle occupant positioning system is configurable to be operable whenever the vehicle is occupied.

11. The vehicle occupant positioning system of claim 9, wherein the vehicle occupant positioning system is configurable to be operable when the vehicle is turned off.

12. The vehicle occupant positioning system of claim 9, wherein the vehicle occupant positioning system is configurable to be operable when the vehicle is stationary.