Systems and methods for operator hand position adjustment for airbag deployment

Patent metadata

Field	Value
Publication number	US-10577008-B2
Application number	US-201715787866-A
Country	US
Kind code	B2
Filing date	Oct 19, 2017
Priority date	Oct 19, 2017
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

System, methods, and other embodiments described herein relate to improving deployment of an airbag by controlling a steering wheel in a vehicle. In one embodiment, a method includes identifying at least a hand position for one or more hands of the operator on the steering wheel using orientation data acquired from at least one sensor of the vehicle. The method includes determining, as a function of at least the hand position, a mitigation action associated with deploying the airbag. The method includes, in response to detecting that deployment of the airbag is imminent, controlling the steering wheel according to the mitigation action.

First claim

What is claimed is:

1. A deployment system for improving deployment of an airbag by controlling a steering wheel in a vehicle, comprising:
one or more processors;
a memory communicably coupled to the one or more processors and storing:
a monitoring module including instructions that when executed by the one or more processors cause the one or more processors to identify at least a hand position for one or more hands of an operator on the steering wheel using orientation data acquired from at least one sensor of the vehicle; and
a steering module including instructions that when executed by the one or more processors cause the one or more processors to determine, as a function of at least the hand position, a mitigation action associated with deploying the airbag including an extent of rotation, and a direction of rotation for the steering wheel to move the hands of the operator into a position that avoids contact with the airbag when the airbag is deployed,
wherein the steering module further includes instructions to, in response to detecting that deployment of the airbag is imminent, control the steering wheel according to the mitigation action, and
wherein the steering module includes instructions to i) determine the mitigation action including instructions to determine that the steering wheel is to be locked in a current position when the hand position of the operator indicates the hands are located outside of a volume to be occupied by the airbag when deployed, and ii) control the steering wheel including instructions to rotate the steering wheel independently of wheels of the vehicle and without affecting a direction in which the wheels are directed.

2. The deployment system of claim 1 , wherein the monitoring module further includes instructions to acquire, using the at least one sensor that is within a passenger compartment of the vehicle, the orientation data that indicates observations of at least the hand position, wherein the at least one sensor is a camera that tracks the operator,
wherein the monitoring module includes instructions to identify the hand position including instructions to analyze one or more images of the operator from the camera to determine which of the hands of the operator are in contact with the steering wheel and locations of the hands on the steering wheel.

3. The deployment system of claim 1 , wherein the at least one sensor includes at least one of: a camera, a touch sensor integrated within the steering wheel, a pressure sensor within a seat of the operator, and
wherein the orientation data includes information about a body position, arm position, and the hand position for the operator.

4. The deployment system of claim 1 , wherein the steering module includes instructions to determine the mitigation action including instructions to determine a rate of rotation for the steering wheel to move the operator away from a volume to be occupied by the airbag when deployed.

5. The deployment system of claim 1 , wherein the steering module includes instructions to detect that deployment of the airbag is imminent including instructions to perform one of: (i) detect an electronic airbag activation signal, and (ii) predict whether an impact is likely to result in deployment of the airbag according to sensor data from one or more environmental sensors of the vehicle.

6. The deployment system of claim 1 , wherein the steering module further includes instructions to deploy the airbag after at least partially controlling the steering wheel according to the mitigation action, and
wherein the monitoring module includes instructions to iteratively execute the acquiring and analyzing of the orientation data to continually update a state of the hand position in anticipation of deploying the airbag.

7. The deployment system of claim 1 , wherein the vehicle is operating at least semi-autonomously.

8. A non-transitory computer-readable medium storing for improving deployment of an airbag by controlling a steering wheel in a vehicle and including instructions that when executed by one or more processors cause the one or more processors to:
identify at least a hand position for one or more hands of an operator on the steering wheel using orientation data acquired from at least one sensor of the vehicle;
determine, as a function of at least the hand position, a mitigation action associated with deploying the airbag including an extent of rotation, and a direction of rotation for the steering wheel to move the hands of the operator into a position that avoids contact with the airbag when the airbag is deployed; and
in response to detecting that deployment of the airbag is imminent, control the steering wheel according to the mitigation action,
wherein the instructions to determine the mitigation action include instructions to determine that the steering wheel is to be locked in a current position when the hand position of the operator indicates the hands are located outside of a volume to be occupied by the airbag when deployed, and wherein the instructions to control the steering wheel include instructions to rotate the steering wheel independently of wheels of the vehicle and without affecting a direction in which the wheels are directed.

9. The non-transitory computer-readable medium of claim 8 , wherein the instructions further include instructions to acquire, using the at least one sensor that is within a passenger compartment of the vehicle, the orientation data that indicates observations of at least the hand position, wherein the at least one sensor is a camera that tracks the operator, and
wherein the instructions to identify the hand position include instructions to analyze one or more images of the operator from the camera to determine which of the hands of the operator are in contact with the steering wheel and locations of the hands on the steering wheel.

10. The non-transitory computer-readable medium of claim 8 , wherein the instructions to determine the mitigation action include instructions to determine a rate of rotation for the steering wheel to move the operator away from a volume to be occupied by the airbag when deployed.

11. The non-transitory computer-readable medium of claim 8 , wherein the instructions further include instructions to deploy the airbag after at least partially controlling the steering wheel according to the mitigation action, and
wherein the instructions include instructions to iteratively execute the acquiring and analyzing of the orientation data to continually update a state of the hand position in anticipation of deploying the airbag.

12. A method of improving deployment of an airbag by controlling a steering wheel in a vehicle, comprising:
identifying at least a hand position for one or more hands of an operator on the steering wheel using orientation data acquired from at least one sensor of the vehicle;
determining, as a function of at least the hand position, a mitigation action associated with deploying the airbag including an extent of rotation, and a direction of rotation for the steering wheel to move the hands of the operator into a position that avoids contact with the airbag when the airbag is deployed; and
in response to detecting that deployment of the airbag is imminent, controlling the steering wheel according to the mitigation action,
wherein determining the mitigation action includes determining that the steering wheel is to be locked in a current position when the hand position of the operator indicates the hands are located outside of a volume to be occupied by the airbag when deployed, and
wherein controlling the steering wheel includes rotating the steering wheel independently of wheels of

Assignees

• Toyota Res Inst Inc

Inventors

• Cazzoli James

Classifications

• B62D1/197

  incorporating devices for preventing ingress of the steering column into the passengers space in case of accident · CPC title

• B60R21/0134

  responsive to imminent contact with an obstacle {, e.g. using radar systems} · CPC title

• B60R21/01516

  using force or pressure sensing means · CPC title

• B62D1/046 Primary

  Adaptations on rotatable parts of the steering wheel for accommodation of switches · CPC title

• B60R2021/01013

  Means for detecting collision, impending collision or roll-over · CPC title