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:
Jan. 15, 2019
Filed:
Sep. 19, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Hiroki Izu, Toyota, JP;
Yu Sasaki, Toyota, JP;
Yoshihiro Okumatsu, Nagakute, JP;
Takahiro Nakayama, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A charging system that includes a charging device and a secondary battery device with improved safety is provided. When the secondary battery device has been connected to a charging terminal of the charging device, a DC voltage for inspection is supplied from a DC power supply unit to the charging terminal to detect a DC signal by a DC signal detection unit, and an AC voltage for inspection is supplied from an AC power supply unit to the charging terminal to detect an AC signal by an AC signal detection unit. The secondary battery device is started to be charged only when the value of the DC signal falls within a reference range defined by a resistance value of the secondary battery device and the value of the AC signal falls within a reference range defined by an impedance value of the secondary battery device.