Systems and methods for vehicle speedometer calibration
US11427209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Aug 22, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2520/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for updating a relevant vehicle parameter in a vehicle so as to improve accuracy of a vehicle velocity determination. In one example, a method comprises integrating signals of a longitudinal acceleration sensor to obtain a first vehicle velocity and obtaining a second vehicle velocity from a wheel speed sensor between a first and a second reference point, and updating the relevant vehicle parameter as a function of a difference between a slope associated with the first vehicle velocity and another slope associated with the second vehicle velocity. In this way, accuracy of vehicle speed determination via one or more wheel speed sensors may be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.