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:
May. 22, 2001
Filed:
Feb. 02, 2000
Tetsushi Watanabe, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A fuel injection control device expanding the dynamic range for controlling the amount of fuel and preventing the wasteful consumption of electric power. The device comprises fuel pressure regulator means,for adjusting the fuel pressure Pf, various sensors,inclusive of a fuel pressure sensor, injector drive means,A for opening the valve body of an injector,and injection control means,A for controlling the fuel pressure regulator means and the injector drive means depending on the operation conditions, wherein the injection control means,A includes a holding current control unit,A that variably sets the injector holding current iha depending on the fuel pressure in order to control the valve-opening time by controlling the exciting current ia and the excitation time of the injector, and variably sets the holding current to a minimum required value so that the holding current decreases with a decrease in the fuel pressure.