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:
Feb. 23, 2021
Filed:
Jan. 23, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tomokazu Masuda, Kasugai, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An electric vehicle includes an electrical storage device, a charging device that charges the electrical storage device when connected to the external power supply device, a ground fault detection device including a ground fault detection circuit and configured to detect a ground fault while the electrical storage device is being charged, and a controller that carries out communication with the external power supply device and carries out communication with the ground fault detection device. The controller acquires a common-mode noise margin of the external power supply device and transmits a ground fault detection time based on the common-mode noise margin to the ground fault detection device. The ground fault detection device detects a ground fault when the ground fault detection time has elapsed from when the ground fault detection circuit is set to a state where a ground fault is detectable.