# US 10,310,605 B2 · Haptic feedback for steering system controls

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- Number: US 10,310,605 B2
- Document ID: US10310605B2
- Status: Granted
- Kind: B2
- Application number: 15/351,752
- Filed: 2016-11-15
- Published: 2018-05-17
- Granted: 2019-06-04
- Earliest claimed: 2016-11-15
- Assignees: Steering Solutions IP Holding Corporation
- Applicants: Steering Solutions IP Holding Corporation
- Inventors: Ashok Chandy
- Web page: https://patentgrep.com/patent/US10310605B2

## CPC

- G06F 3/016: {Input arrangements with force or tactile feedback as computer generated output to the user}
- B62D 1/046: {Adaptations on rotatable parts of the steering wheel for accommodation of switches}
- B62D 1/06: Rims, e.g. with heating means; Rim covers (B62D1/11 takes precedence)
- G06F 3/04883: for inputting data by handwriting, e.g. gesture or text
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

A system for haptic feedback for steering system controls includes a touch sensor input detection module and an actuator haptic response driver module. The touch sensor input detection module acquires a touch sensor input from one or more touch sensors of a steering system and identifies a touch gesture type of the touch sensor input. The actuator haptic response driver module determines a desired haptic feedback associated with the touch gesture type and controls a steering system actuator to produce a haptic response based on the desired haptic feedback.

## Claims

### Claim 1

A system for haptic feedback for steering system controls, the system comprising:
a touch sensor input detection module that acquires a touch sensor input from one or more touch sensors of a steering system, identifies a touch gesture type of the touch sensor input, and determines a touch location of the touch gesture type; and
an actuator haptic response driver module that determines a desired haptic feedback based on indexing the touch gesture type and the touch location with respect to a haptic feedback map and controls a steering system actuator to produce a haptic response based on the desired haptic feedback.

### Claim 2 (depends on 1)

The system of claim 1, wherein the actuator haptic response driver module selects between one or more of: a torsional haptic feedback, an axial haptic feedback, and a vertical haptic feedback as the desired haptic feedback.

### Claim 3 (depends on 2)

The system of claim 2, wherein the steering system actuator comprises one or more of: a steering actuator motor, a telescope actuator, and a rake actuator, and further wherein the torsional haptic feedback adds a torsional acceleration to output of the steering actuator motor, the axial haptic feedback adds an axial acceleration to output of the telescope actuator, and the vertical haptic feedback adds a vertical acceleration to output of the rake actuator.

### Claim 4 (depends on 3)

The system of claim 3, wherein actuator plant dynamics of one or more of the steering actuator motor, the telescope actuator, and the rake actuator are used to synthesize the desired haptic feedback.

### Claim 5 (depends on 1)

The system of claim 1, wherein the one or more touch sensors comprise one or more of: a handwheel rim-mounted touch sensor, a handwheel spoke-mounted touch sensor, and a handwheel hub-mounted touch sensor.

### Claim 6 (depends on 1)

The system of claim 1, wherein the touch gesture type distinguishes between a tapping motion detected by the one or more touch sensors and a sliding motion detected by the one or more touch sensors.

### Claim 7

A steering system comprising:
one or more touch sensors;
a steering system actuator; and
a control module operable to acquire a touch sensor input from the one or more touch sensors, identify a touch gesture type of the touch sensor input, determine a touch location of the touch gesture type, determine a desired haptic feedback based on indexing the touch gesture type and the touch location with respect to a haptic feedback map, and control the steering system actuator to produce a haptic response based on the desired haptic feedback.

### Claim 8 (depends on 7)

The steering system of claim 7, wherein the control module is operable to select between one or more of: a torsional haptic feedback, an axial haptic feedback, and a vertical haptic feedback as the desired haptic feedback.

### Claim 9 (depends on 8)

The steering system of claim 8, wherein the steering system actuator comprises one or more of: a steering actuator motor, a telescope actuator, and a rake actuator, and further wherein the torsional haptic feedback adds a torsional acceleration to output of the steering actuator motor, the axial haptic feedback adds an axial acceleration to output of the telescope actuator, and the vertical haptic feedback adds a vertical acceleration to output of the rake actuator.

### Claim 10 (depends on 9)

The steering system of claim 9, wherein actuator plant dynamics of one or more of the steering actuator motor, the telescope actuator, and the rake actuator are used to synthesize the desired haptic feedback.

### Claim 11 (depends on 7)

The steering system of claim 7, wherein the one or more touch sensors comprise one or more of: a handwheel rim-mounted touch sensor, a handwheel spoke-mounted touch sensor, and a handwheel hub-mounted touch sensor.

### Claim 12 (depends on 7)

The steering system of claim 7, wherein the touch gesture type distinguishes between a tapping motion detected by the one or more touch sensors and a sliding motion detected by the one or more touch sensors.

### Claim 13

A method for haptic feedback for steering system controls, the method comprising:
acquiring, by a control module, a touch sensor input from one or more touch sensors of a steering system;
identifying a touch gesture type of the touch sensor input;
determining a touch location of the touch gesture type;
determining a desired haptic feedback based on indexing the touch gesture type and the touch location with respect to a haptic feedback map; and
controlling a steering system actuator to produce a haptic response based on the desired haptic feedback.

### Claim 14 (depends on 13)

The method of claim 13, further comprising selecting between one or more of: a torsional haptic feedback, an axial haptic feedback, and a vertical haptic feedback as the desired haptic feedback.

### Claim 15 (depends on 14)

The method of claim 14, wherein the steering system actuator comprises one or more of: a steering actuator motor, a telescope actuator, and a rake actuator, and further wherein the torsional haptic feedback adds a torsional acceleration to output of the steering actuator motor, the axial haptic feedback adds an axial acceleration to output of the telescope actuator, and the vertical haptic feedback adds a vertical acceleration to output of the rake actuator, wherein actuator plant dynamics of one or more of the steering actuator motor, the telescope actuator, and the rake actuator are used to synthesize the desired haptic feedback.

### Claim 16 (depends on 13)

The method of claim 13, wherein the one or more touch sensors comprise one or more of: a handwheel rim-mounted touch sensor, a handwheel spoke-mounted touch sensor, and a handwheel hub-mounted touch sensor.

### Claim 17 (depends on 13)

The method of claim 13, wherein the touch gesture type distinguishes between a tapping motion detected by the one or more touch sensors and a sliding motion detected by the one or more touch sensors.
