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:
Sep. 11, 2012
Filed:
May. 26, 2010
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Ibi-Gun, JP;
Senji Hamanaka, Ibi-Gun, JP;
Takashi Yamakawa, Ibi-Gun, JP;
Makoto Konno, Ibi-Gun, JP;
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Ibi-Gun, JP;
Senji Hamanaka, Ibi-Gun, JP;
Takashi Yamakawa, Ibi-Gun, JP;
Makoto Konno, Ibi-Gun, JP;
Ibiden Co., Ltd., Ogaki-Shi, JP;
Other;
Abstract
A particulate matter sensor includes a first detection filter provided in an exhaust gas flow passage and capable of collecting particle matter. A second detection filter is provided on a downstream side of the first detection filter in the exhaust gas flow passage and capable of collecting the particle matter. A first differential pressure detection unit is configured to detect a first differential pressure between pressures of an upstream side and the downstream side of the first detection filter. A second differential pressure detection unit is configured to detect a second differential pressure between pressures of an upstream side and a downstream side of the second detection filter. A particle matter amount detection unit is configured to detect an amount of particle matter based on a detection result of the first differential pressure detection unit and a detection result of the second differential pressure detection unit.