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. 10, 2000
Filed:
Mar. 05, 1999
Applicant:
Inventor:
Yutaka Onuma, Susono, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303155 ; 3031134 ;
Abstract
In a device for judging a normal operation of a brake system of a vehicle such as an automobile by judging if the stroke of the brake pedal depression detected by a stroke sensor and the master cylinder pressure detected by a pressure sensor are correlated with one another within a range determined for a judgment of a normal operation of the brake system, the device detects speed of change of at least one of the stroke and the pressure, and refrains from executing the judgment when at least one of the stroke change speed and the pressure change speed is not smaller than a threshold value determined therefor.