Tire wear detection system for automated vehicle
View Patent ↗A tire-wear detection system for an automated vehicle includes a steering-angle-sensor, a vehicle-path-detector, and a controller. The steering-angle-sensor indicates a steering-angle of a host-vehicle. The vehicle-path-detector indicates a turning-radius of the host-vehicle. The controller is in communication with the steering-angle-sensor and the vehicle-path-detector. The controller determines a wear-status of a tire of the host-vehicle based on the turning-radius and the steering-angle.
1. A tire-wear detection system for an automated vehicle, said system comprising:
a steering-angle-sensor that indicates a steering-angle of a host-vehicle;
a vehicle-path-detector that indicates a turning-radius of the host-vehicle; and
a controller in communication with the steering-angle-sensor and the vehicle-path-detector, wherein the controller determines a wear-status of a tire of the host-vehicle based on a change in the turning-radius and the steering-angle measured at two different times while the host-vehicle travels a selected-section of roadway or another section of roadway having at least one physical-characteristic of the selected-section of roadway.
2. The system in accordance with claim 1 , wherein the wear-status is further determined based on one or more of a vehicle-speed of the host-vehicle, an ambient-temperature, a traction-rating of a roadway traveled by the host-vehicle, and a camber-angle of the roadway traveled by the host-vehicle.
3. The system in accordance with claim 2 , wherein the wear-status is determined when the traction-rating is a dry-road.
4. The system in accordance with claim 1 , wherein the controller indicates that a tire of the host-vehicle needs to be replaced when the wear-status is less than a wear-threshold.
5. The system in accordance with claim 1 , wherein the vehicle-path-detector includes one or more of an inertial-measurement-unit (IMU), a global-position-sensor (GPS), and a camera.
6. A method comprising:
obtaining, using a steering-angle-sensor, a steering-angle of a host-vehicle;
obtaining, using a vehicle-path-detector, a turning-radius of the host-vehicle; and
determining, using a controller, a wear-status of a tire of the host-vehicle based on a change in the turning-radius and the steering-angle measured at two different times while the host-vehicle travels a selected-section of roadway or another section of roadway having at least one physical-characteristic of the selected-section of roadway.
7. The method in accordance with claim 6 , wherein the wear-status is further determined based on one or more of a vehicle-speed of the host-vehicle, an ambient-temperature, a traction-rating of a roadway traveled by the host-vehicle, and a camber-angle of the roadway traveled by the host-vehicle.
8. The method in accordance with claim 7 , wherein the wear-status is determined when the traction-rating is a dry-road.
9. The method in accordance with claim 6 , further comprising:
generating, by the controller, a wear-status indicator indicating that a tire of the host-vehicle needs to be replaced when the wear-status is less than a wear-threshold.
10. The method in accordance with claim 6 , wherein the vehicle-path-detector includes one or more of an inertial-measurement-unit (IMU), a global-position-sensor (GPS), and a camera.
11. A non-transitory, computer-readable storage medium having instructions stored thereon that when executed by a controller of a host vehicle, cause the controller to perform operations comprising:
obtaining, using a steering-angle-sensor, a steering-angle of a host-vehicle;
obtaining, using a vehicle-path-detector, a turning-radius of the host-vehicle; and
determining, using a controller, a wear-status of a tire of the host-vehicle based on a change in the turning-radius and the steering-angle measured at two different times while the host-vehicle travels a selected-section of roadway or another section of roadway having at least one physical-characteristic of the selected-section of roadway.
12. The non-transitory, computer-readable storage medium in accordance with claim 11 , wherein the wear-status is further determined based on one or more of a vehicle-speed of the host-vehicle, an ambient-temperature, a traction-rating of a roadway traveled by the host-vehicle, and a camber-angle of the roadway traveled by the host-vehicle.
13. The non-transitory, computer-readable storage medium in accordance with claim 12 , wherein the wear-status is determined when the traction-rating is a dry-road.
14. The non-transitory, computer-readable storage medium in accordance with claim 11 , the operations further comprising:
generating, by the controller, a wear-status indicator indicating that a tire of the host-vehicle needs to be replaced when the wear-status is less than a wear-threshold.
15. The non-transitory, computer-readable storage medium in accordance with claim 11 , wherein the vehicle-path-detector includes one or more of an inertial-measurement-unit (IMU), a global-position-sensor (GPS), and a camera.