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. 03, 2019
Filed:
Apr. 06, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Junta Izumi, Nagoya, JP;
Kiyohito Machida, Nissin, JP;
Masakazu Habu, Toyota, JP;
Kiyoe Ochiai, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A cooling system for cooling a main batteryincludes a cooling fanand a temperature sensorconfigured to detect a battery temperature TB. The cooling system performs constant control in which the cooling fanis driven at a constant command value when the battery temperature TB reaches or exceeds a first temperature Tafter startup of the electrically powered vehicle. Additionally, the cooling system detects whether or not a malfunction occurs in the cooling fan, based on an actual rpm of the cooling fanobtained during the constant control. The cooling system performs the constant control in a situation in which charging of the main batteryis continued for a predetermined period of time or longer after the startup of the vehicle, regardless of whether the battery temperature TB is below the first temperature T