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:
Jul. 13, 2004
Filed:
Dec. 16, 2002
Yasuhiro Tamai, Shizuoka, JP;
Tetsuya Hasegawa, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
When an ignition switch is off, even if a master CPU ( ) receives a predetermined command signal, the master CPU ( ) does not immediately transmit an activating signal to slave CPUs ( ). At this time, power necessary for an electronic control unit ( ) is being supplied from a standby-current supplying converter ( ). The master CPU ( ) transmits an activating request signal to a controller ( ) to activate a normal supplying converter ( ). The controller ( ), after activating the normal supplying converter ( ), transmits an activating completion signal to the master CPU ( ). For the first time upon receipt of this activating completion signal, the master CPU ( ) transmits the activating signal to the slave CPUs ( ). Consequently, power is supplied from the normal supplying converter ( ) to all the electronic control units ( to ).