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:
Apr. 12, 2005
Filed:
Dec. 30, 2002
Satoru Matsumoto, Brussels, BE;
Satoru Matsumoto, Brussels, BE;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A timer IC is operated by power supplied from a standby power source so as to output a start-up signal for starting a microcomputer every time that the time period during which a non-operating state of the microcomputer continues reaches a predetermined value. When the start-up signal is supplied to a relay coil of a main relay from the timer IC, it enables power to be supplied to the microcomputer from an in-vehicle battery. When it is determined that the microcomputer is started by the timer IC, a part of a series of predetermined initial process steps is executed and process steps relating only to the failure diagnosis are executed. That is, in the above condition, execution of the control for turning on an engine check lamp and a monitor can be inhibited by interrupting output of signals to the microcomputer.