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:
Oct. 21, 2014
Filed:
Apr. 04, 2012
Shinichi Mitani, Susono, JP;
Hiroshi Nomura, Gotenba, JP;
Eiji Murase, Gotenba, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A particulate matter control system includes: an electrode that is provided in an exhaust pipe of an internal combustion engine; a power supply that is connected to the electrode and that applies voltage; a particle number detecting unit that detects the particle number of particulate matter on a downstream side of the electrode; a calculation unit that calculates a reduction rate of the particle number at the time when voltage is applied on the basis of the particle number detected by the particle number detecting unit at the time when voltage is applied and the particle number detected by the particle number detecting unit at the time when no voltage is applied; and a determination unit that determines that there is a failure when the reduction rate of the particle number, calculated by the calculation unit, is smaller than a threshold.