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. 19, 2026
Filed:
Jan. 30, 2024
Honda Motor Co., Ltd., Tokyo, JP;
Toshiyuki Abe, Tokyo, JP;
Kazuhiko Yamaguchi, Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
An electric power supply system includes: a positive-electrode-side contactor inserted into a positive power line; a negative-electrode-side contactor inserted into a negative power line; a pre-charge circuit; an electric potential difference detector that detects an electric potential difference between both ends of the positive-electrode-side contactor; and a contactor controller that receives an output of the electric potential difference detection circuit, and controls the positive-electrode-side contactor and the negative-electrode-side contactor, in which the contactor controller temporarily turns on the positive-electrode-side contactor in a state where the negative-electrode-ide contactor is turned off when the electric power supply system is started, retains an output of the electric potential difference detection circuit during this on period as a correction value, turns off the positive-electrode-side contactor and turns on the negative-electrode-side-contactor after the retention, and turns on the positive-electrode-side contactor when an output of the electric potential difference detection circuit has reached the correction value.