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:
Aug. 07, 2012
Filed:
Aug. 08, 2007
Kentarou Ueno, Hitachinaka, JP;
Mitsuhide Sasaki, Isehara, JP;
Hirotaka Oikawa, Yokohama, JP;
Tohma Yamaguchi, Kawaskai, JP;
Hiroki Takeda, Yokohama, JP;
Kentarou Ueno, Hitachinaka, JP;
Mitsuhide Sasaki, Isehara, JP;
Hirotaka Oikawa, Yokohama, JP;
Tohma Yamaguchi, Kawaskai, JP;
Hiroki Takeda, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric braking apparatus which first moves a piston in a detaching direction or passes a current to move the piston in the detaching direction in order to detect a pad contacting position. Furthermore, while the piston moves in the detaching direction, pad non-contact judgment is performed. After a pad non-contact state is confirmed, the piston is moved in a pressing direction to detect the pad contacting position. When the piston does not move in the detaching direction, it is judged that a parking brake has an ON-state, and it is waited until a host system instructs parking brake release.