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:
Aug. 01, 2017
Filed:
Oct. 09, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
DENSO CORPORATION, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
An electronic control unit mounted in an object includes: a rewritable memory of control and reprogramming software; a not-always-on power supply system micro-computer operating in control and reprogramming modes and connected/disconnected with a power source; and an always-on power supply system micro-computer operating in the control and reprogramming modes and constantly connected with the power source. Each micro-computer includes: a first mode determination device determining whether to operate in an on-board mode when the power source starts to supply the electric power; and a second mode determination device determining whether to operate in the reprogramming mode. The always-on power supply system micro-computer includes a first transition device that detects a change in a power supply state of the not-always-on power supply system micro-computer. The first transition device switches a processing to a determination executed by the first mode determination device when the power supply state has changed.