公开(公告)号：US20240141849A1

公开(公告)日：2024-05-02

申请号：US18277287

申请日：2022-02-11

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Baptiste PERROT ,  David GACON

IPC: F02D41/24 ,  F02D41/20

CPC classification number: F02D41/247 ,  F02D41/20 ,  F02D2041/2055

Abstract: A method of controlling the operation of a solenoid activated fuel injector, the fuel injector including an actuator including a solenoid, and being adapted to control a needle valve dependent on an activation pulse sent to the solenoid to control the needle valve to dispense fuel.
The method comprises the steps of:



a) determining the minimum drive pulse (MDP1) required for the needle valve to open;
b) determining the closing response of the injector during MDP conditions;
c) determining the total operational time during MDP conditions of the injector;
d)—determining the difference between the value determined from step c) and a stored value;
e) determining the value of the difference between the opening delay of the injector and a stored the opening delay of the reference injector from step d); and
f) controlling the operation based on the parameter at e).