FUEL INJECTION CONTROLLER OF INTERNAL COMBUSTION ENGINE

• Main Authors: HANAWA TETSUSHI, MATSUBARA TAKESHI, FUJIE HIDEKAZU
• Format: Patent
• Language: English; Japanese
• Published: 28.06.2018
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a fuel injection controller of an internal combustion engine capable of suppressing deterioration of followability of feedback control resulting from steady-state deviation.SOLUTION: A fuel injection controller of an internal combustion engine comprises a first map 41b configured to output a fixed feed-forward control value (fixation F/F control item), and a second map 41b configured to output a variable feed-forward control value (learning F/F control item) obtained by learning with a feedback value. The fuel injection controller is configured to perform feed-forward control so as to cancel steady-state deviation by the second map 41b, thereby suppress deterioration of followability of feedback control resulting from the steady-state deviation.SELECTED DRAWING: Figure 3 【課題】定常偏差に起因するフィードバック制御の追従性の低下を抑制し得る内燃機関の燃料噴射制御装置を提供すること。【解決手段】固定のフィードフォワード制御値（固定Ｆ／Ｆ制御項）を出力する第１マップ４１ｂと、フィードバック値を用いた学習によって得られた可変のフィードフォワード制御値（学習Ｆ／Ｆ制御項）を出力する第２マップ４１ｂと、を有する構成とし、第２マップ４１ｂによって定常偏差を打ち消すようなフィードフォワード制御を行うようにしたことにより、定常偏差に起因するフィードバック制御の追従性の低下を抑制できるようになる。【選択図】図３