Shear tactile display systems for use in vehicular directional applications

• US 8,994,665 B1
• Filed: 11/18/2010
• Issued: 03/31/2015
• Est. Priority Date: 11/19/2009
• Status: Active Grant

• Current Assignee: University of Utah Research Foundation (State of Utah)
• Original Assignee: University of Utah Research Foundation (State of Utah)
• Inventors: Provancher, William R.
• Primary Examiner(s): MANDEVILLE, JASON M
• Application Number:
  US12/949,303
• Time in Patent Office: 1,594 Days
• Field of Search: 345/156, 345173-179, 701/36
• US Class Current: 345/173
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A system capable of providing directional cues to a user of the vehicle comprises a vehicle component, configured to be installed within a vehicle that is adapted to be controlled by a user. A tactile display system is operably coupled to the vehicle component. The tactile display system includes: a contact pad, operable to engage a target area of a user'"'"'s skin; a restraining system, operable to restrain a portion of the user'"'"'s skin distal from the target area of the skin; and an actuation system, operably coupled to one of: i) the contact pad and the ii) restraining system. The actuation system is capable of moving the contact pad and the restraining system relative to one another to apply a tangential displacement or shear force across the target area of the user'"'"'s skin to thereby provide tactile information to the user.

Claims

1. A system capable of providing directional cues to a user of a vehicle, comprising:

a vehicle component, configured to be installed within a vehicle that is adapted to be controlled by a user, the vehicle component including a steering wheel; and

a tactile display system, operably coupled to the vehicle component, the tactile display system including;

one or more contact pads, at least one of the one or more contact pads operable to engage a plurality of target areas of a user'"'"'s skin;

a restraining system having one or more apertures therein, operable to restrain a portion of the user'"'"'s skin distal from the plurality of target areas of the skin, the steering wheel including an outer shell having the one or more apertures formed therein, the one or more contact pads coupled to, or formed integrally with, an inner shell, moveable relative to the outer shell such that movement of the inner shell relative to the outer shell provides tactile information to a user'"'"'s digit positioned over or in one or more of the apertures; and

an actuation system, operably coupled to one of;

i) the one or more contact pads and the ii) restraining system;

the actuation system being capable of moving the one or more contact pads and the restraining system relative to one another, the one or more contact pads being positioned inside the restraining system and a surface of the one or more contact pads being larger than the one or more apertures, to apply a shear force across the plurality of target areas of the user'"'"'s skin to thereby provide tactile information to the user.

2. The system of claim 1, wherein the restraining system is coupled to or formed integrally with the steering wheel.

3. The system of claim 2, wherein the restraining system comprises a finger well, positioned so as to be accessible by the user while grasping the steering wheel during operation of the vehicle.

4. The system of claim 1, wherein the actuation system provides relative movement between the inner shell and the outer shell in a location remote from the one or more apertures.

5. The system of claim 2, wherein substantially all components of the actuation system and the one or more contact pads are contained within or below an outer shell of the steering wheel.

6. The system of claim 1, wherein the vehicle component is operably coupleable to an auxiliary device associated with the vehicle, the auxiliary device including at least one of:

a sound system of the vehicle, a navigational system of the vehicle, a telecommunication system of the vehicle, and a position sensing system of the vehicle.

15. The system of claim 1, wherein the one or more contact pads are configured to move circumferentially about the vehicle component.

16. The system of claim 1, wherein at least two of the one or more contact pads share a tactor and are configured to communicate the same tactile information to the plurality of target areas simultaneously.

17. The system of claim 1, wherein the one or more contact pads comprises a substantially continuous strip extending circumferentially about the vehicle component.

18. The system of claim 1, wherein the actuation system is capable of moving the one or more contact pads and the restraining system relative to one another to apply a shear force across the plurality of target areas of the user'"'"'s skin in a coordinated fashion to thereby provide tactile information to the user.

7. A method for adapting a vehicle to allow the provision of directional cues to a user of the vehicle, comprising:

installing within, or coupling to, a component of the vehicle a tactile display system, the component of the vehicle includes a steering control that includes a steering wheel, the tactile display system including;

one or more contact pads, at least one of the one or more contact pads operable to engage a plurality of target areas of a user'"'"'s skin;

a restraining system having a surface, the surface operable to restrain a portion of the user'"'"'s skin distal from the plurality of target areas of the skin and having one or more apertures therethrough, the one or more apertures being configured to allow the plurality of target areas of the user'"'"'s skin to be positioned therethrough and engage the one or more contact pads, the steering wheel including an outer shell having the one or more apertures formed therein, the one or more contact pads coupled to, or formed integrally with, an inner shell, moveable relative to the outer shell such that movement of the inner shell relative to the outer shell provides tactile information to a user'"'"'s digit positioned over or in one or more of the apertures; and

an actuation system, operably coupled to one of;

i) the one or more contact pads and the ii) restraining system;

the actuation system being capable of applying a lateral force to the one or more contact pads and the restraining system relative to one another to apply a shear force across the plurality of target areas of the user'"'"'s skin to thereby provide tactile information to the user, wherein at least a portion of a surface of the one or more contact pads translates parallel to at least a portion of a surface of the restraining system;

coupling a control system to the actuation system, the control system being operable to cause movement of the one or more contact pads relative to the component of the vehicle in order to provide tactile information to the user while the user operates the vehicle.

8. The method of claim 7, wherein the tactile display system is coupled to the steering control.

9. The method of claim 8, wherein the restraining system is coupled to or formed integrally with the steering wheel.

10. The method of claim 9, wherein the restraining system comprises a finger well, positioned so as to be accessible by the user while grasping the steering wheel during normal operation of the vehicle.

11. The method of claim 9, wherein the actuation system is disposed at least partially within or at least partially beneath an outer shell of the steering wheel.

12. The system of claim 7, wherein the actuation system provides relative movement between the inner shell and the outer shell in a location remote from the one or more apertures.

13. The method of claim 9, wherein substantially all components of the actuation system and the one or more contact pads are contained within or below an outer shell of the steering wheel.

14. The method of claim 7, wherein the vehicle component is operably coupleable to an auxiliary device associated with the vehicle, the auxiliary device including at least one of:

a sound system of the vehicle, a navigational system of the vehicle, a telecommunication system of the vehicle, and/or a position sensing system of the vehicle.