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. 18, 2015
Filed:
Sep. 01, 2011
Hiroshi Katsuta, Toyota, JP;
Hiroshi Katsuta, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
In a vehicle including an EHC containing a catalyst base material and an insulator insulating the EHC from the outside, an ECU estimates a temperature of the catalyst base material and a temperature of the insulator immediately after a state of the vehicle is switched from a Ready-OFF state to a Ready-ON state, as a base material temperature for determination THcpost and an insulator temperature for determination THipost, respectively. Then, when base material temperature for determination THcpost is lower than a base material threshold temperature THcth and when insulator temperature for determination THipost is lower than an insulator threshold temperature THith, the ECU allows EHC power feed, and otherwise it does not allow but prohibits EHC power feed.