Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshihiro Majima0
Date of Patent
April 29, 2008
0Patent Application Number
115930170
Date Filed
November 6, 2006
0Patent Primary Examiner
Patent abstract
A common rail fuel injection system has a fuel pump, a common rail, and an injector. The injector injects high-pressure fuel supplied from the common rail into an engine and leaks part of the high-pressure fuel. An electronic control unit (ECU) restricts a heat amount of the leak fuel of the injector based on a remaining amount of the fuel in a fuel tank. At that time, a target value of the fuel pressure in the common rail is changed to a lower value and the restriction of the fuel pressure is performed with the changed target value. Thus, decrease in generation torque of the engine against intension of a driver can be inhibited while protecting components such as the fuel injection valve.
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