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:
Apr. 27, 2004
Filed:
Jun. 13, 2003
Kenichiro Matsubara, Chiyoda, JP;
Atsushi Yokoyama, Chiyoda, JP;
Toshio Manaka, Hitachinaka, JP;
Nobuyuki Ueki, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A power supply system for a vehicle is provided which is able to supply an electric brake apparatus with necessary power even if an abnormal condition occurs in a battery or a conductor which is connected to the electric brake apparatus. A relay control unit normally brings a relay in a state in which its input terminal is connected to an A terminal . This causes a generator or main battery to supply an electric brake apparatus with power via first and second power supply lines and and charges an auxiliary battery . If an abnormal condition occurs at main and auxiliary batteries and , main and auxiliary power supply lines and , first and second power supply lines and , the relay control unit brings the relay into a state in which its input terminal is connected to A or B terminal or in response to the abnormal condition.