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:
May. 03, 2016
Filed:
Jul. 08, 2009
Yuji Nishi, Nagoya, JP;
Hidenori Takahashi, Okazaki, JP;
Masatoshi Tazawa, Okazaki, JP;
Masanobu Matsusaka, Handa, JP;
Makoto Ishikura, Toyota, JP;
Yuji Nishi, Nagoya, JP;
Hidenori Takahashi, Okazaki, JP;
Masatoshi Tazawa, Okazaki, JP;
Masanobu Matsusaka, Handa, JP;
Makoto Ishikura, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A temperature elevating apparatus of a secondary battery includes a ripple generator and a controller. Ripple generator is connected to secondary battery, and is configured to actively generate ripple current of a predetermined frequency in secondary battery. Controller controls ripple generator to elevate a temperature of the secondary battery by generating ripple current in secondary battery. Here, the predetermined frequency is set to be a frequency in a frequency region where an absolute value of an impedance of secondary battery relatively decreases based on frequency characteristics of the impedance of secondary battery.