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:
Aug. 31, 2021
Filed:
Mar. 11, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Michihiro Miyashita, Toyota, JP;
Kazuhiko Sakakibara, Toyota, JP;
Hiroyuki Toyama, Toyota, JP;
Koji Ito, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A drive system includes an engine as a drive source, a lead storage battery that is charged using the engine as a motive power source, a starter that starts up the engine by being driven by electric power from the lead storage battery, and a voltage sensor that measures an inter-vehicle voltage of the lead storage battery. A control device that is applied to the drive system determines that the battery has been degraded, when a voltage difference between a first battery start-up voltage and a second battery start-up voltage is larger than a preset degradation determination threshold, the first battery start-up voltage being measured by the voltage sensor when the starter is driven, the second battery start-up voltage being measured by the voltage sensor when the starter is driven at a different timing from a timing when the first battery start-up voltage is measured.