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. 30, 2006
Filed:
Jul. 16, 2004
Hidetoshi Suzuki, Hamamatsu, JP;
Eiji Ina, Toyohashi, JP;
Hidetoshi Suzuki, Hamamatsu, JP;
Eiji Ina, Toyohashi, JP;
Asmo Co., Ltd., Shizuoka-ken, JP;
Abstract
An electric parking brake system includes motors, parking brakes, current a detection portion, a drive circuit, and a controller. The parking brakes are driven by the motors to apply braking force to wheels. The current detection portion detects the amount of current supplied to the motors. The drive circuit supplies a constant predetermined voltage to the motors. The controller controls supply of electricity to the motors. The drive circuit is controlled by the controller. When a detected current value exceeds a predetermined value, the controller stop supplying electricity to the motors.