Method and system for determining tire effective radius
US11707952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2250/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire radius monitoring system for dynamically determining a tire effective radius for each of the wheels on a vehicle is described. The system includes a GPS sensor, a plurality of wheel speed sensors, and a controller. The controller determines, via the GPS sensor, a velocity vector related to longitudinal velocity of the vehicle. The controller determines wheel speeds for the plurality of vehicle wheels, and detects a no-wheel-slip state for the vehicle wheels and the velocity vector from the GPS sensor. The controller determines tire effective radii for the plurality of vehicle wheels based upon the velocity vector for the vehicle and the wheel speeds for the plurality of vehicle wheels during the no-wheel-slip state, and controls vehicle operation based upon the tire effective radii.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.