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. 13, 2007
Filed:
Mar. 17, 2006
Takahiko Oono, Tokyo, JP;
Takahiko Oono, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A high pressure fuel pump control apparatus for an engine can suppress or avoid uncontrolled fuel delivery of a flow control valve upon delivery of a maximum amount of fuel, and resultant great deterioration in drivability and exhaust gas. An advance angle setting limiting section limits a closed position of the flow control valve from being set to a location advanced from a predetermined advance angle limiting position. A flow control valve control section decides a target pressure in accordance with an engine operating condition, and sets the closed position such that the fuel pressure coincides with the target pressure. When the closed position is being controlled to be limited to the advance angle limiting position, and when the fuel pressure does not show a tendency to coincide with the target pressure, the advance angle limiting position is changed from the last set value to a value more retarded therefrom.