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:
Oct. 05, 2021
Filed:
Mar. 05, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An auxiliary device battery sensor measures current and voltage of an auxiliary device battery. On the basis of a peak value and frequency of current measured by the auxiliary device battery sensor at a time when the current and the voltage of the auxiliary device battery change in accordance with requirements of a load, a monitoring ECU sets a waveform for measurement that is for measuring resistance of the auxiliary device battery. Further, the monitoring ECU controls a DDC that is connected to the auxiliary device battery, such that a waveform of the current of the auxiliary device battery becomes the waveform for measurement. The monitoring ECU estimates resistance of the auxiliary device battery on the basis of current and voltage measured by the auxiliary device battery sensor at a time of controlling the DDC.