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:
Mar. 12, 2013
Filed:
Mar. 05, 2008
Yusuke Ogata, Toyota, JP;
Yoshinobu Soga, Toyota, JP;
Yusuke Ogata, Toyota, JP;
Yoshinobu Soga, Toyota, JP;
Toyota Jidosha Kabushika Kaisha, Aichi-ken, JP;
Abstract
An oil pressure control device includes a plurality of solenoid valves, and a foreign matter discharge unit which carries out foreign matter discharge treatment for a treatment period composed of a first period Tin which a current smaller than a predetermined value is supplied to one of the solenoid valves and a second period Tin which a current equal to or larger than the predetermined value is supplied to the one of the solenoid valves, and makes timings for varying the current values different from one another so as to start supplying a current equal to or larger than the predetermined current value to another one of the solenoid valves at the beginning of the first period T, and to start supplying a current smaller than the predetermined value to the another one of the solenoid valves at the beginning of the second period T