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. 01, 1996
Filed:
Sep. 07, 1995
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A system for correcting an output from a tank internal-pressure sensor in an evaporative fuel processing device including a fuel tank, and a tank internal-pressure sensor provided in the fuel tank or in an evaporative fuel passage between the fuel tank and a pressure regulating valve. In a condition in which it is difficult to generate an evaporative fuel within the fuel tank, a canister opened to the atmosphere and the fuel tank are brought into communication with each other over a predetermined time. A reference value is reset based on a first detection value detected immediately before the communication, a second detection value detected immediately before releasing the communication, and a reference value stored in a reference value storing device. Thus, it is possible to enhance the accuracy of correction of the output from the tank internal-pressure sensor.