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:
Sep. 02, 2003
Filed:
Jan. 19, 2001
Applicant:
Inventor:
Satoshi Udaka, Susono, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 8/60 ; B60T 1/374 ;
U.S. Cl.
CPC ...
B60T 8/60 ; B60T 1/374 ;
Abstract
A brake operating speed detecting device includes a plurality of filters having different cut-off frequencies and inputs thereto a vehicle body deceleration that changes at the time of braking. The state of distribution of output values obtained through the filters, or the difference d between the output values, corresponds to the rising speed of the vehicle body deceleration. Because the rising speed corresponds to the brake operating speed, the brake operating speed can be detected from the state of distribution of the output values or the difference d.