Method for estimating a value for friction
US11654959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | May 11, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0421
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for estimating a value for friction exerted on a power steering system of a vehicle, during turning resulting in the crossing of a straight line angle, the turning being achieved at a substantially uniform speed included within a predefined range, and an angle of a steering wheel included within a predefined range, including: a step (1) of acquiring a plurality of vehicle-related data items, including at least one value of a force of a power steering motor on a rack and pinion, and a value of a force of the steering wheel on the rack and pinion; a step (4) of estimating the value for friction by averaging the sum of the forces of the steering wheel and the forces of the power steering motor on the rack and pinion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.