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. 20, 2026
Filed:
Jun. 02, 2022
Nissan Motor Co., Ltd., Yokohama, JP;
Akikazu Sakai, Kanagawa, JP;
Hideyuki Suzuki, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A particulate filter differential pressure sensing method is provided. The method includes sensing, by an upstream pressure sensor, a first pressure on an upstream side of a particulate filter disposed in an exhaust passage of an internal combustion engine; sensing, by a downstream pressure sensor, a second pressure on a downstream side of the particulate filter; and calculating an upstream-to-downstream differential pressure of the particulate filter. The method further includes correcting a sensed value of the first pressure or the second pressure so as to reduce a difference in waveform phase between the first pressure and the second pressure; and implementing the calculation of the upstream-to-downstream differential pressure based on the corrected sensed value of the first pressure or the second pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile