Invention Grant
- Patent Title: Fuel injection controller and fuel-injection-control system
- Patent Title (中): 燃油喷射控制器和燃油喷射控制系统
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Application No.: US14070670Application Date: 2013-11-04
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Publication No.: US09228521B2Publication Date: 2016-01-05
- Inventor: Keita Imai
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye PC
- Priority: JP2012-243624 20121105
- Main IPC: F02D41/20
- IPC: F02D41/20

Abstract:
A fuel injection controller includes a current-increase control portion applying a voltage to the coil so that the coil current is increased to a first target value, and a current-hold control portion applying the voltage to the coil so that the increased coil current is held at the first target value. A maximum electromagnetic attracting force to start a valve opening is referred to as a required valve-opening force. A saturated electromagnetic attracting force by the coil current of the first target value is referred to as a static attracting force. The first target value is established in such a manner that the static attracting force is greater than the required valve opening force.
Public/Granted literature
- US20140124601A1 FUEL INJECTION CONTROLLER AND FUEL-INJECTION-CONTROL SYSTEM Public/Granted day:2014-05-08
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