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, 1998
Filed:
Aug. 01, 1996
Mikio Amitani, Tokyo, JP;
Yasuo Naito, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A control apparatus for an anti-skid brake system of a motor vehicle can ensure operation of electromagnetic valves for actuating wheel brakes even when a battery voltage is low while ensuring a sufficient braking force for a motor vehicle even when an onboard battery of the motor vehicle is connected with reverse polarity. The apparatus includes a plurality of exciting coils (8a to 8h) provided in association with electromagnetic valves for controlling hydraulic circuits designed for operating front wheel brakes (11, 12) and rear wheel brakes (13, 14), a plurality of transistors (7a to 7h) each connected in series to each of the exciting coils (8a to 8h), a valve control unit (6) for generating on/off signals to the transistors (7a to 7h), a battery (1) for applying a DC voltage to the series circuits each constituted by the exciting coils (8a to 8h) and the transistors (7a to 7h), and diodes (9a to 9h) each disposed in a current path formed between the transistor (7a to 7h) and the exciting coil (8a to 8h) connected in series for blocking a reverse current flowing through the current path.