Steering Wheels for Vehicle Control in Manual and Autonomous Driving

• US 20130002416A1
• Filed: 06/29/2011
• Published: 01/03/2013
• Est. Priority Date: 06/29/2011
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Gazit, Ran Y.
• Granted Patent: US 8,994,521 B2
• Time in Patent Office: Days
• US Class Current: 340/438
• CPC Class Codes: B62D 1/28 non-mechanical , e.g. following a line or other known markers
• CPC Class Codes: B62D 1/286 Systems for interrupting non-mechanical steering due to driver intervention
• CPC Class Codes: B62D 15/025 Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation B62D1/28 takes precedence
• CPC Class Codes: B62D 15/0255 Automatic changing of lane, e.g. for passing another vehicle
• CPC Class Codes: B62D 15/027 Parking aids, e.g. instruction means
• CPC Class Codes: B62D 5/001 Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup

Abstract

Systems and methods for switching between manual-mode steering and autonomous-mode steering, including a steering wheel assembly sending a signal to an autonomous driving electronic control unit, to engage autonomous-mode steering, in response to an autonomous interface steering wheel of the assembly having been moved from a first position to a second position.

Claims

1. A vehicle steering system for use in a vehicle operable in a manual steering mode and an autonomous steering mode, comprising:

an autonomous interface steering wheel movable from a first position to a second position; and

an autonomous driving electronic control unit configured to receive a signal indicating that the autonomous interface steering wheel has been moved from the first position to the second position and initiate change of operation of the vehicle between the manual steering mode and the autonomous steering mode in response to receiving the signal.

2. The vehicle steering system of claim 1 wherein the first position of the autonomous interface steering wheel corresponds to a first plane and the second position of the autonomous interface steering wheel corresponds to a second plane being parallel to the first plane.

3. The vehicle steering system of claim 2 further comprising a manual steering wheel concentrically located to the autonomous interface steering wheel, and wherein the vehicle operates in manual steering mode when the manual steering wheel and the autonomous interface steering wheel are in the same plane and the vehicle operates in autonomous steering mode when the manual steering wheel and the autonomous interface steering wheel are in different planes.

4. The vehicle steering system of claim 2 wherein the second plane is closer to a driver of the vehicle during operation of the vehicle and movement of the autonomous steering wheel into the second plane signals the autonomous driving electronic control unit to initiate change of operation to autonomous steering mode.

5. The vehicle steering system of claim 1 wherein the autonomous interface steering wheel is configured to send a second signal to the autonomous driving electronic control unit when it is rotated a certain degree of rotation and the autonomous driving electronic control unit is configured to initiate a vehicle maneuver in response to receiving the second signal.

6. The vehicle steering system of claim 5 wherein the autonomous interface steering wheel and autonomous driving electronic control unit are configured to provide haptic feedback to the driver in response to the autonomous interface steering wheel being rotated the certain degree of rotation while the vehicle is in the autonomous steering mode.

7. The vehicle steering system of claim 5 wherein the degree of rotation of the autonomous interface steering wheel determines the vehicle maneuver that is initiated by the electronic control unit.

8. The vehicle steering system of claim 5 wherein the maneuver is selected from a group of maneuvers consisting of lane change, turn, roadway exit, and parking.

9. The vehicle steering system of claim 1 wherein the autonomous driving electronic control unit is configured to consider at least one other variable, in addition to the signal, in determining to initiate change of vehicle operation between the manual steering mode and the autonomous steering mode.

10. The vehicle steering system of claim 1 wherein the autonomous interface steering wheel is configured to change in visual appearance to indicate a change between the autonomous steering mode and the manual steering mode.

11. A vehicle steering system for use in a vehicle operable in a manual steering mode and an autonomous steering mode, comprising:

a steering wheel assembly movable between a first position and a second position;

a sensor configured to detect movement of the steering wheel assembly between the first position and the second position and initiate transmission of a signal to an autonomous driving electronic control unit, in response to detecting the movement, for changing operation of the vehicle between the manual steering mode and the autonomous steering mode.

12. The vehicle steering system of claim 11 further comprising the autonomous driving electronic control unit being configured to receive the signal indicating that the steering wheel assembly has been moved from the first position to the second position and initiate change of operation of the vehicle between the manual steering mode and the autonomous steering mode in response to receiving the signal.

13. The vehicle steering system of claim 12 wherein:

the signal is a first signal;

the steering wheel assembly is configured to, in response to receiving, while the vehicle is operating in the autonomous steering mode, input from a driver of the vehicle indicating that the driver would like the vehicle to execute a particular vehicle maneuver, communicate a second signal to the electronic control unit indicating the input; and

the electronic control unit is configured to initiate performance of the particular vehicle maneuver in response to receiving the second signal.

14. The vehicle steering system of claim 11 wherein a face of the steering wheel assembly in the first position corresponds to a first plane and a face of the steering wheel assembly in the second position corresponds to a second plane being parallel to the first plane.

15. The vehicle steering system of claim 13 wherein the steering wheel assembly comprises an autonomous interface steering wheel and a manual steering wheel and the autonomous interface steering wheel is moveable from a first position to a second position.

16. The vehicle steering system of claim 15 wherein the autonomous interface steering wheel and the manual steering wheel are concentrically arranged with the manual steering wheel concentrically inside of the autonomous interface steering wheel.

17. The vehicle steering system of claim 11 wherein the steering wheel assembly is configured to change in visual appearance in response to movement of the steering wheel assembly between the first position and the second position.

18. A method, of vehicle operation, comprising:

receiving, at an autonomous driving electronic control unit, a signal from an autonomous steering wheel assembly including an autonomous interface steering wheel, the signal indicating that the autonomous interface steering wheel has been moved from a first position to a second position; and

the autonomous driving electronic control unit initiating change of operation of the vehicle between a manual steering mode and an autonomous steering mode in response to receiving the signal.

19. The method of claim 18 further comprising the autonomous interface steering wheel assembly sending the signal to the autonomous driving electronic control unit in response to the autonomous interface steering wheel having been moved by a driver of the vehicle between the first position and the second position.

20. The method of claim 18 further comprising providing feedback to the driver in connection with autonomous operation of the vehicle, the feedback being selected from a group consisting of:

haptic feedback, by way of the steering wheel assembly; and

visual feedback, by way of the steering wheel assembly.