Method for determining the understeering ratio of a vehicle provided with electric power steering and for optionally correcting the power steering
US8874320B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jul 14, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2520/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for calculating the understeering ratio of automobiles provided with electric power steering (EPS) including an electric assistance motor (9) driven by an onboard electronic computer (11), a sensor (12, 14) providing a first piece of information on a real angular position of the steering wheel (3), a wheel anti-lock braking system (ABS) providing a second piece of information on the speed of the wheels (15) of the vehicle, characterised in that the onboard computer (11) of the EPS processes the second piece of information for estimating a theoretical angular position of the steering wheel (3), which is further compared to the real angular position of the steering wheel (3) in order to derive the understeering ratio (τ) of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.