CONTROLLER OF ENGINE DEVICE

• Main Authors: MURAKAMI YASUAKI, UCHIDA TAKAHIRO, MIZOGUCHI HIROAKI, IDOGAWA MASANAO, NISHIMURA YUTA
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2021
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

To improve calculation accuracy of a torque acting on a camshaft from a fuel pump, and suppress increase of processing load for calculating the torque.SOLUTION: A controller of an engine device controls a fuel supply device using a control amount that is the sum of a feed-back term of reducing the deviation between a discharge amount of a fuel pump and a target discharge amount and a feed-forward term of making the discharge amount of the fuel pump the target discharge amount, and further, calculates a torque acting on a camshaft from the fuel pump based on a fuel pressure of fuel supplied to a fuel injection valve, the feed-forward term, and an engine speed of an engine.SELECTED DRAWING: Figure 6 【課題】燃料ポンプからカムシャフトに作用するトルクの算出精度を向上させると共に算出するための処理負荷の増加を抑制する。【解決手段】燃料ポンプの吐出量と目標吐出量との偏差を減少させるフィードバック項と、燃料ポンプの吐出量を目標吐出量するためのフィードフォワード項と、の和である制御量を用いて燃料供給装置を制御し、更に、燃料噴射弁に供給する燃料の燃圧と、フィードフォワード項と、エンジンの回転数と、に基づいて燃料ポンプから前記カムシャフトに作用するトルクを算出する。【選択図】図６