IP Library › Granted Patent US 11,565,647
Granted Patent B2
US 11,565,647 · App. 17/376,791 · Granted Jan 31, 2023

Vehicle occupant restraint system

Inventor: Hideyuki Sakurai (Toyota, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
B60R21/214B60R21/013B60R21/01554
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Quick Facts
Patent No.
US 11,565,647
App. No.
17/376,791
Granted
Jan 31, 2023
Kind
B2
Abstract

A vehicle occupant restraint system includes an airbag configured to deploy downward into a vehicle cabin from a roof of the vehicle cabin by receiving gas supplied, a region setting unit configured to set a predetermined region according to a position of the airbag, a collision sensor configured to detect a collision of a vehicle, a seat position detection sensor configured to detect at least one of a position and an angular position of a seat on which an occupant is seated, and a seat control unit configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the predetermined region, execute control to change at least one of the position and the angular position of the seat. Thus, a positional relation between the seat and the airbag is appropriately controlled.

Claims (37)

1. A vehicle occupant restraint system comprising:

an airbag configured to deploy downward into a vehicle cabin from a roof of the vehicle cabin by receiving gas supplied;

a collision sensor configured to detect a collision of a vehicle;

a seat position detection sensor configured to detect at least one of a position and an angular position of a seat on which an occupant is seated; and

an electronic control unit configured to set a predetermined region according to a position of the airbag,

the electronic control unit configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the predetermined region, execute control to change at least one of the position and the angular position of the seat.

2. The vehicle occupant restraint system according to claim 1 , wherein:

the electronic control unit is configured to set a first region around a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the first region, change at least one of the position and the angular position of the seat such that the seat is located away from the deployment region of the airbag.

3. The vehicle occupant restraint system according to claim 2 , wherein the electronic control unit is configured to execute the control such that the seat is located at a supporting position to support the airbag.

4. The vehicle occupant restraint system according to claim 1 , wherein:

the electronic control unit is configured to set a first region around a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the first region, execute control to change at least one of the position and the angular position of the seat such that the seat is located at a supporting position to support the airbag.

5. The vehicle occupant restraint system according to claim 1 , wherein:

the electronic control unit is configured to set a second region spaced apart from a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the second region, execute control to change at least one of the position and the angular position of the seat such that the seat is located at a supporting position to support the airbag.

6. The vehicle occupant restraint system according to claim 3 , wherein:

the seat includes a headrest having a retractable mechanism; and

the electronic control unit is configured to execute control to position the seat at a supporting position to support the airbag by controlling the retractable mechanism of the headrest.

7. The vehicle occupant restraint system according to claim 1 , wherein the electronic control unit is configured to execute the control in a state where the vehicle is being driven autonomously.

8. A vehicle occupant restraint system comprising:

an airbag configured to deploy downward into a vehicle cabin from a roof of the vehicle cabin by receiving gas supplied;

a collision sensor configured to detect a collision of a vehicle;

a seat position detection sensor configured to detect at least one of a position and an angular position of a seat on which an occupant is seated; and

an electronic control unit configured to set a predetermined region according to a position of the airbag, the electronic control unit configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the predetermined region, execute control to change at least one of the position and the angular position of the seat,

wherein the seat includes a headrest having a retractable mechanism; and

wherein the electronic control unit is configured to execute control to position the seat at a supporting position to support the airbag by controlling the retractable mechanism of the headrest.

9. The vehicle occupant restraint system according to claim 8 , wherein:

the electronic control unit is configured to set a first region around a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the first region, change at least one of the position and the angular position of the seat such that the seat is located away from the deployment region of the airbag.

10. The vehicle occupant restraint system according to claim 8 , wherein:

the electronic control unit is configured to set a first region around a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the first region, execute control to change at least one of the position and the angular position of the seat such that the seat is located at a supporting position to support the airbag.

11. The vehicle occupant restraint system according to claim 8 , wherein:

the electronic control unit is configured to set a second region spaced apart from a deployment region of the airbag; and

the electronic control unit is configured to, when the collision sensor detects a collision of the vehicle and the seat position detection sensor detects that the seat is located in the second region, execute control to change at least one of the position and the angular position of the seat such that the seat is located at a supporting position to support the airbag.

12. The vehicle occupant restraint system according to claim 8 , wherein the electronic control unit is configured to execute the control in a state where the vehicle is being driven autonomously.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2021
From: SAKURAI, HIDEYUKI
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 056869/0801 →
Priority Claims (1)
JP JP2020-146331 · Aug 31, 2020 · national
Continuity (1)
Related Publication 20220063542A1 · Mar 3, 2022