Method of determining a directional change during vehicle navigation, apparatus for carrying out such a method, and vehicle comprising such an apparatus
US5908466A · kind A · utility
32Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C22/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining a directional change of a vehicle carries out dead-reckoning for which it utilizes sensors provided on two wheels. In order to compensate for differences between the wheels, the method utilizes given parameters in processing the data from the wheel sensors. The invention provides an extension of the method by estimating the parameters during normal operation of the vehicle, so that they are adapted to changing circumstances encountered by the vehicle. Estimation is performed by comparing data from the wheel sensors with independently determined directional data for a given period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.