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. 08, 2009
Filed:
Sep. 22, 2004
Takeshi Nozaki, Toyota, JP;
Masahito Ozaki, Toyota, JP;
Takeshi Nozaki, Toyota, JP;
Masahito Ozaki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An ECU executes a program including the steps of: when a DC/DC converter is boosting the voltage, calculating a VB estimate value, and if a state, where an absolute value of a difference between the VB estimate value and a VB value sensed by a VB sensor is at least a voltage threshold value X, has been continuing for a predetermined time, determining that the VB sensor is tentatively abnormal; if a state, where an absolute value of a difference between a VH voltage instruct value and a VH value sensed by a VH sensor is at least a voltage threshold value Z, has been continuing for a predetermined time, determining that the VH sensor is tentatively abnormal; and if the sensor is tentatively abnormal, stopping boosting, and specifying the abnormal sensor based on the deviation of the VB value and the VH value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile