CONTROL DEVICE OF COMPRESSION SELF-IGNITION TYPE ENGINE

• Main Authors: INOUE ATSUSHI, URUSHIBARA TOMONORI, MATSUMOTO KOTA, SUEOKA KENYA
• Format: Patent
• Language: English; Japanese
• Published: 07.06.2018
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To suppress combustion noise by properly performing combustion by compression self-ignition.SOLUTION: A control device of a compression self-ignition type engine 1 controls compression self-ignition by ignition. The control device comprises an injector 6, an ignition plug 25 and a controller 10. The controller 10 controls the injector 6 so that fuel is dividedly injected a plurality of times, and after that, outputs a control signal to the ignition plug 25 at prescribed ignition timing so that an unburned mixture is combusted by self-ignition. The controller performs control so that an amount of fuel which is injected at later timing out of a plurality of times of the injection becomes larger at a high-load time than a low-load time of the engine 1.SELECTED DRAWING: Figure 19 【課題】圧縮自己着火による燃焼を適切に行うことにより、燃焼騒音を抑制する。【解決手段】点火によって圧縮自己着火を制御する圧縮自己着火式エンジン１の制御装置である。インジェクタ６、点火プラグ２５、及びコントローラー１０を備える。コントローラー１０が、燃料が複数回に分けて噴射されるようにインジェクタ６を制御し、その後、点火により未燃混合気が自己着火により燃焼するよう、所定の点火タイミングで点火プラグ２５に制御信号を出力する。エンジン１の低負荷時よりも高負荷時の方が、複数回の噴射のうち、遅い時期に噴射された燃料の量が多くなるように制御する。【選択図】図１９