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. 18, 2021
Filed:
Jun. 20, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Takeshi Goto, Kasugai, JP;
Kiwamu Kobayashi, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is an electricity storage device testing method including: building a closed circuit by connecting an external power source to a charged electricity storage device such that the direction of voltage of the external power source is opposite from that of the electricity storage device; measuring a circuit current while applying to the closed circuit a voltage in an opposite direction from a voltage of the electricity storage device by the external power source; calculating a voltage to be output by the external power source, based on the value of the circuit current measured and a resistance value of the closed circuit. The output voltage of the external power source is changed according to a result of the calculation. A time interval at which the calculation is set to be shorter at an early stage and longer at a late stage of the measuring.