Fuel pressure control system and method having a variable pull-in time interval based on fuel pressure

摘要

A system and method for controlling fuel pressure in a fuel delivery system. The system includes a fuel pump (12) and an inlet control valve (24). The inlet control valve (24) is operated to a closed state by an electrical signal applied to the inlet control valve. The electrical signal includes a pull-in portion of the electrical signal that is applied to the inlet control valve (24) having a pull-in time interval that is varied based on the fuel pressure. By varying the pull-in time interval to control fuel pressure, electrical energy consumed and acoustic noise generated by the fuel delivery system are reduced.