Invention Grant
- Patent Title: Method of controlling a fuel injector
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Application No.: US17047440Application Date: 2019-04-12
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Publication No.: US11352971B2Publication Date: 2022-06-07
- Inventor: Peter Baur , Volker Heise
- Applicant: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
- Applicant Address: LU Bascharage
- Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
- Current Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
- Current Assignee Address: LU Bascharage
- Agency: Warner Norcross + Judd LLP
- Priority: GB1806143 20180415
- International Application: PCT/EP2019/059483 WO 20190412
- International Announcement: WO2019/201789 WO 20191024
- Main IPC: F02D41/20
- IPC: F02D41/20 ; F02D41/24 ; F02M51/06

Abstract:
A method is provided for controlling a solenoid actuated fuel injector having a solenoid actuator which moves a pintle and needle arrangement such that the needle moves away from a valve seat to an open position and also includes circuitry which applies chopped hysteresis control subsequent to an energisation phase. The method includes a) obtaining a signal of the current or voltage across the solenoid; b) analyzing the voltage or current to detect a chopped hysteresis pulse; c) determining the time point of the end of said chopped hysteresis pulse; and d) applying a braking pulse to the solenoid, the timing of which is dependent on the results of step c).
Public/Granted literature
- US20210148297A1 METHOD OF CONTROLLING A FUEL INJECTOR Public/Granted day:2021-05-20
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