System and method of activating a seat head restraint in a vehicle

Patent metadata

Field	Value
Publication number	US-11433792-B2
Application number	US-201916582332-A
Country	US
Kind code	B2
Filing date	Sep 25, 2019
Priority date	Sep 25, 2019
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A method of activating a head restraint system in a vehicle for an occupant is provided. The method comprises providing a vehicle seat having a seat belt and a head restraint in the vehicle and detecting the occupant in the vehicle. The method further comprises actuating the seat head restraint of the vehicle seat to an in-use position if the seat belt is buckled. The method further includes providing an actuation signal to an electronic control module of the vehicle if the seat head restraint is actuated.

First claim

What is claimed is:

1. A method of activating a head restraint system in a vehicle for an occupant, the method comprising:
providing a vehicle seat having a seat belt and a seat head restraint in the vehicle;
detecting the occupant in the vehicle;
receiving, by an electronic control module, biometric data from a pressure sensor disposed in the vehicle seat, wherein the biometric data includes a pressure exerted by the occupant on the pressure sensor;
determining, by the electronic control module, a weight range of the occupant based on the pressure exerted by the occupant on the pressure sensor;
determining, by the electronic control module, a height of the occupant based on the previously determined weight range of the occupant and a predetermined weight-to-height range of a hypothetical adult occupant;
actuating the seat head restraint of the vehicle seat to an in-use position in response to detecting the occupant in the vehicle when the seat belt is buckled; and
providing an actuation signal to an electronic control module of the vehicle in response to actuating the seat head restraint, wherein the actuation signal is indicative that the seat head restraint has been actuated.

2. The method of claim 1 wherein the step of detecting the occupant in the vehicle comprises sensing pressure to the vehicle seat.

3. The method of claim 1 wherein the step of detecting the occupant in the vehicle comprises:
providing a door of the vehicle;
sensing the door opened and closed;
activating a distance sensor relative to the vehicle seat; and
determining an occupant height category of the occupant with the distance sensor.

4. The method of claim 3 wherein the step of actuating the seat head restraint comprises moving the seat head restraint to the in-use position based on the occupant height category of the occupant.

5. The method of claim 3 wherein the step of activating the distance sensor comprises sensing the occupant on the vehicle seat with the distance sensor.

6. The method of claim 1 further comprising:
providing a first reminder signal to the occupant to buckle the seat belt when the seat belt is not buckled.

7. The method of claim 1 wherein the step of providing the actuation signal comprises:
confirming the seat head restraint is in the in-use position after the step of actuating the seat head restraint;
providing a second reminder signal to the occupant to manually deploy the seat head restraint when the seat head restraint is not in the in-use position; and
wherein the actuation signal is provided after the seat head restraint of the vehicle has been moved to the in-use position.

8. The method of claim 1 further comprising determining whether the seat belt is buckled when the occupant is detected.

9. A system for activating a head restraint system in a vehicle for an occupant, the method comprising:
a vehicle seat having a seat belt and a seat head restraint in the vehicle;
an electronic control module disposed in the vehicle, the electronic control module having a processor for executing control logic, the control logic including a first control logic for actuating the seat head restraint of the vehicle seat to an in-use position;
a pressure sensor disposed in the vehicle seat to detect the occupant in the vehicle, the pressure sensor being in communication with the electronic control module to send biometric data of the occupant to the electronic control module;
an actuation sensor disposed adjacent the seat head restraint, the actuation sensor being in communication with the electronic control module for sending an actuation signal to the electronic control module when the seat head restraint is actuated, wherein the actuation sensor is configured to detect an actuation of the seat head restraint, and the actuation sensor is configured to generate an actuation signal that is indicative of the actuation of the seat head restraint; and
wherein the biometric data includes a pressure exerted by the occupant on the pressure sensor, the electronic control module is configured to determine a weight range of the occupant based on the pressure exerted by the occupant on the pressure sensor, and the electronic control module is configured to determine a height of the occupant based on the previously determined weight range of the occupant and a predetermined weight-to-height range of a hypothetical adult occupant.

10. The system of claim 9 wherein the electronic control module includes a second control logic for determining an occupant height category of the occupant based on the biometric data of the occupant from the pressure sensor, and the first control logic for actuating the seat head restraint moves the seat head restraint to the in-use position based on the occupant height category of the occupant.

11. The system of claim 9 wherein the actuation sensor is disposed adjacent the head restraint to confirm the seat head restraint is in the in-use position and wherein the electronic control module includes a second control logic for providing a second reminder signal to the occupant to manually deploy the seat head restraint when the seat head restraint is not in the in-use position.

12. The system of claim 9 further comprising a seat belt sensor being in communication with the electronic control module to sense whether the seat belt is buckled and send a seat belt signal to the electronic control module.

13. The system of claim 12 wherein the electronic control module includes a third control logic for receiving the seat belt signal from the seat belt sensor and providing a first reminder signal to the occupant to buckle the seat belt when the seat belt is not buckled, the actuation sensor is configured to send the actuation signal to the electronic control module after the seat head restraint has been actuated and after the seat head restraint has been moved to the in-use position.

14. A method of activating a head restraint system in a vehicle for an occupant, the method comprising:
providing a vehicle door and a vehicle seat having a seat belt and a seat head restraint;
sensing the vehicle door opened and closed;
receiving, by an electronic control module, biometric data from a pressure sensor disposed in the vehicle seat, wherein the biometric data includes a pressure exerted by the occupant on the pressure sensor;
determining, by the electronic control module, a weight range of the occupant based on the pressure exerted by the occupant on the pressure sensor;
determining, by the electronic control module, a height of the occupant based on the previously determined weight range of the occupant and a predetermined weight-to-height range of a hypothetical adult occupant;
determining whether the seat belt is buckled when the occupant is detected;
actuating the seat head restraint of the vehicle seat to an in-use position when the seat belt is buckled; and
providing an actuation signal to an electronic control module of the vehicle in response to actuating the seat head restraint, wherein the actuation signal is indicative that the seat head restraint has been actuated.

15. The method of claim 14 wherein the step of actuating the seat head restraint comprises moving the seat head restraint based on the occupant height category of the occupant, and the actuation signal is provided to the electronic control module after the seat head restraint has been actuated and after the seat head restraint has been moved to the in-use position.

16. The method of claim 14 further comprising:
providing a first reminder signal to the occupant to buckle the seat belt when th

Assignees

• Gm Global Tech Operations Llc

Inventors

• Mihm Russell J
• Cherukuvada Venkata Narasimha R
• Meyers Niki K

Classifications

• B60R2022/4858

  for sensing pressure on seat · CPC title

• B60N2/832 Primary

  movable to an inoperative or stowed position · CPC title

• B60R22/48

  Control systems, alarms, or interlock systems, for the correct application of the belt or harness · CPC title

• B60N2/829 Primary

  characterised by their adjusting mechanisms, e.g. electric motors · CPC title

• B60N2/856

  movable to an inoperative or stowed position · CPC title