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:
Jan. 30, 2001
Filed:
Mar. 09, 2000
Yoichi Arai, Shizuoka-ken, JP;
Syuji Satake, Shizuoka-ken, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A junction box provided between a high voltage battery and a load supplies a high voltage to the load, generates a predetermined low voltage from that high voltage and supplies the low voltage to a low voltage battery and load. If over-current flows through the high voltage system circuit or low voltage system circuit, the junction box shuts off an input of the high voltage. The junction box is provided with an over-voltage countermeasure circuit which even if an over-voltage exceeding 36 V is supplied from the high voltage battery, suppresses it to a predetermined high voltage and outputs. Further, the junction box includes a controller for estimating a remaining capacity of each of the high voltage battery and low voltage battery by detecting respective voltages and currents of the high voltage system circuit and low voltage system circuit.