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:
Mar. 21, 2000
Filed:
May. 04, 1999
Applicant:
Inventors:
Takashi Isobe, Saitama, JP;
Kojiro Tsutsumi, Saitama, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ; G01M / ;
U.S. Cl.
CPC ...
73-159 ; 73-166 ; 731181 ; 73 497 ;
Abstract
A determination as to whether or not the absolute value PCHK of the deviation between a detection value PTANK of a pressure sensor and its average value PTANKAVE exceeds a predetermined pressure DLEAKCHK is repeated within a predetermined time TINTVAL. The number of times the absolute value PCHK has exceeded the predetermined pressure DLEAKCHK is measured on a failure determination counter C91BNG. When the value of the counter C91BNG exceeds a determination threshold value 91BJVD, it is determined that the pressure sensor fails (time t10).