CONTROL DEVICE FOR HIGH PRESSURE FUEL PUMP

To provide a control device for a high pressure fuel pump that avoids pulsation of fuel pressure caused by interference between two types of control that are discharge amount control based on electric current start timing and silencing control based on an electric current value.SOLUTION: In an ECU (112) for controlling a high pressure fuel pump (103), a fuel pressure sensor (401) is disposed and a plunger phase measurement section (402) is provided. The ECU includes: a plunger operation determination section (801); a fuel pressure rise evaluation section (802); a valve closing determination section (803); and a discharge amount control section (804) that controls discharge amount of fuel by controlling electric current application start timing to a solenoid (205) on the basis of fuel pressure measured by the fuel pressure sensor (401) and target fuel pressure. The discharge amount control section (804) determines a control gain at the electric current application start timing on the basis of a determination result obtained by the valve closing determination section (803).SELECTED DRAWING: Figure 8 【課題】電流開始タイミングによる吐出量制御と電流値による静音化制御との２つの制御の干渉による燃圧の脈動を回避する高圧燃料ポンプの制御装置を提供する。【解決手段】高圧燃料ポンプ（１０３）を制御するＥＣＵ（１１２）は、燃圧センサ（４０１）が配置され、プランジャ位相計測部（４０２）が設けられ、プランジャ動作判定部（８０１）と、燃圧上昇評価部（８０２）と、閉弁判定部（８０３）と、燃圧センサ（４０１）が計測する燃圧と目標燃圧とに基づきソレノイド（２０５）への電流印加開始タイミングを制御することにより燃料の吐出量を制御する吐出量制御部（８０４）と、を備え、吐出量制御部（８０４）は、閉弁判定部（８０３）の判定結果に基づき電流印加開始タイミングの制御ゲインを決定する。【選択図】図８