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:
May. 05, 1998
Filed:
Jul. 02, 1996
Applicant:
Inventors:
Minoru Saeki, Toyota, JP;
Masaki Kawanishi, Aichi-ken, JP;
Yoshiaki Tsuchiya, Aichi-ken, JP;
Tomokiyo Suzuki, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
364565 ; 701 74 ;
Abstract
A vehicle speed detecting apparatus wherein the speeds of vehicle wheels are detected by wheel speed detecting devices, and the vehicle running speed is estimated by a vehicle speed estimating device, on the basis of the detected wheel speeds, and according to a predetermined estimation rule. The vehicle speed estimating device includes a noise detector for detecting a noise included in any one of the detected wheel speeds, and a rule changing device for changing the estimation rule depending upon whether the noise is included in the detected wheel speed or speeds.