The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Dec. 15, 2009
Julien Barthomeuf, Saint Genis Laval, FR;
Andre Michelis, Grigny, FR;
Julien Barthomeuf, Saint Genis Laval, FR;
Andre Michelis, Grigny, FR;
JTEKT Europe, , FR;
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 () driven by an onboard electronic computer (), a sensor () providing a first piece of information on a real angular position of the steering wheel (), a wheel anti-lock braking system (ABS) providing a second piece of information on the speed of the wheels () of the vehicle, characterised in that the onboard computer () of the EPS processes the second piece of information for estimating a theoretical angular position of the steering wheel (), which is further compared to the real angular position of the steering wheel () in order to derive the understeering ratio (τ) of the vehicle.