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. 13, 2016
Filed:
Apr. 24, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Tomoki Fujino, Okazaki, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A CNG control ECU has a pulse signal determination device determining a pulse width and an output timing of a pulse signal, an electricity control device controlling a supply of electricity to a solenoid, and a current value sensing part sensing a current value of the solenoid. Further, the CNG control ECU has an estimation part estimating an injection start timing and an injection full opening timing on the basis of a differential value of the current value, a first calculation part calculating a first correction part, and a full opening time difference calculation part calculating a full opening time difference. Still further, the CNG control ECU has a correction injection quantity calculation part calculating a correction injection quantity and a second calculation part calculating a second correction value. A correction part makes a correction of adding the first correction value to the output timing and a correction of adding the second correction value to the pulse width.