Apparatus and method for direct delivery of haptic energy to touch surface

• US 10,007,342 B2
• Filed: 10/08/2014
• Issued: 06/26/2018
• Est. Priority Date: 10/08/2013
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Acquisition, LLC
• Original Assignee: Joyson Safety Systems Acquisition, LLC
• Inventors: Lisseman, Jason, Andrews, David
• Primary Examiner(s): Haley, Joseph
• Assistant Examiner(s): FRANK, EMILY J
• Application Number:
  US14/509,462
• Publication Number:
  US 20150097793A1
• Time in Patent Office: 1,357 Days
• Field of Search: None
• CPC Class Codes: B62D 1/04 Hand wheels
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0414 using force sensing means to determine a position
• CPC Class Codes: G06F 3/167 Audio in a user interface, e.g. using voice commands for navigating, audio feedback

Abstract

A force-based haptic switch panel comprises a touch plate having first and second surfaces, the first surface comprising a touch surface and the second surface opposing the first surface. The switch panel also comprises a circuit board having a plurality of force sensors electrically coupled thereto. The force sensors are disposed between the circuit board and the second surface of the touch plate, and each force sensor is configured to measure a respective portion of a force applied to the touch surface of the touch plate. The switch panel also comprises an actuator affixed to the second surface of the touch plate and configured to generate a mechanical output to the touch plate, wherein the circuit board comprises a passage for allowing a portion of the actuator to pass therethrough.

Claims

1. A force-based haptic switch panel, comprising:

a touch plate having first and second surfaces, the first surface comprising a touch surface and the second surface opposing the first surface;

a circuit board having a plurality of force sensors electrically coupled thereto, the force sensors disposed between the circuit board and the second surface of the touch plate, wherein each force sensor measures a respective portion of a force applied to the touch surface of the touch plate;

an actuator affixed to the second surface of the touch plate and configured to generate a mechanical output to the touch plate, wherein the actuator is secured directly to the second surface; and

wherein the circuit board comprises a first planar surface and a second planar surface, the first planar surface being spaced apart and opposite the second planar surface, and wherein the first and second planar surfaces define an opening that extends through the first and second planar surfaces, and at least a portion of the actuator extends through the opening.

2. The force-based haptic switch panel of claim 1, wherein the actuator comprises an acoustic actuator configured to generate acoustic energy responsive to the force applied to the touch surface of the touch plate.

3. The force-based haptic switch panel of claim 2, wherein the acoustic actuator comprises an audio speaker configured to generate an audible output responsive to the force applied to the touch surface.

4. The force-based haptic switch panel of claim 1, wherein the actuator is positioned relative to the touch plate to direct a substantial majority of the mechanical energy toward the second surface.

5. The force-based haptic switch panel of claim 1, further comprising a processor, electrically coupled to the circuit board and configured to provide a plurality of different control signals for causing the actuator to generate the mechanical output, each haptic control signal associated with a respective force value applied to the touch surface.

6. The force-based haptic switch panel of claim 5, wherein the actuator is an acoustic actuator and each haptic control signal is configured to cause the acoustic actuator to generate a respective combination of tactile vibration and audible output.

7. A method for delivery of mechanical energy to a touch surface of a haptic switch panel, the method comprising:

measuring, by at least one force sensor, a force applied to a touch surface of a touch plate;

generating, by an acoustic actuator affixed directly to a central portion of a second surface of the touch plate wherein the central portion of the second surface is spaced apart from a perimeter of the touch plate, a first mechanical output energy responsive to a first force value associated with the measured force, the first mechanical output energy including a first haptic output and a first audible output; and

generating, by the acoustic actuator, a second mechanical output energy responsive to a second force value associated with the measured force, the second mechanical output energy including a second haptic output.

8. The method of claim 7, wherein the first haptic output has a first amplitude and the second haptic output has a second amplitude.

9. The method of claim 7, wherein the second mechanical output energy includes a second audible output.

10. The method of claim 9, wherein the first audible output includes has a first volume and the second audible output has a second volume.

11. The method of claim 7, wherein the acoustic actuator comprises an audio speaker.

12. The method of claim 7, further comprising directing, by the acoustic actuator, a substantial majority of the mechanical energy toward the second surface.

13. A vehicle, comprising:

one or more ground-engaging devices;

a steering interface, coupled to one or more ground-engaging devices and comprising a rim portion and a hub portion, the rim portion graspable by an operator of a vehicle;

a touch plate having first and second surfaces, the first surface comprising a touch surface and the second surface opposing the first surface;

a circuit board having a plurality of force sensors electrically coupled thereto, the force sensors disposed between the circuit board and the second surface of the touch plate, wherein each force sensor measures a respective portion of a force applied to the touch surface of the touch plate;

an actuator affixed to the second surface of the touch plate to generate a mechanical output to the touch plate, wherein the actuator is secured directly to the second surface; and

a processor, communicatively coupled to the actuator and the plurality of force sensors, and configured to provide a plurality of different control signals for causing the actuator to generate the mechanical output, each haptic control signal associated with a respective force value applied to the touch surface,

wherein the circuit board comprises a first planar surface and a second planar surface, the first planar surface being spaced apart and opposite the second planar surface, and wherein the first and second planar surfaces define an opening that extends through the first and second planar surfaces, and at least a portion of the actuator extends through the opening.

14. The vehicle of claim 13, wherein the actuator comprises an acoustic actuator configured to generate acoustic energy responsive to the force applied to the touch surface of the touch plate.

15. The vehicle of claim 14, wherein the acoustic actuator comprises an audio speaker configured to generate an audible output responsive to the force applied to the touch surface.

16. The vehicle of claim 13, wherein the actuator is positioned relative to the touch plate to direct a substantial majority of the mechanical energy toward the second surface.

17. The vehicle of claim 13, wherein the actuator is an acoustic actuator and each haptic control signal is configured to cause the acoustic actuator to generate a respective combination of tactile vibration and audible output.