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:
Nov. 25, 2003
Filed:
Mar. 05, 2002
Takane Hayashi, Yokohama, JP;
Takeshi Tsuyuki, Yokohama, JP;
Shigeaki Kakizaki, Yokohama, JP;
Masato Kobayashi, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
Fuel vapor adsorbed by activated carbon in a canister is introduced to an engine by a manifold vacuum in an intake air passage and burnt. The controller estimates the fuel amount desorbed from the canister during purge, using a canister model (physical model) comprising an equation which computes the adsorption amount and an equation which computes the desorption amount from the adsorption amount and purge rate. An injection pulse width output to injectors is corrected to reduce an air-fuel ratio fluctuation due to the supply of this desorbed fuel to the engine
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile