CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a control device capable of positively removing exhaust particulates accumulated at a particle filter while restricting deterioration in fuel economy and increase in discharged harmful substances.SOLUTION: When an accumulated amount of exhaust particulates estimated...

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Bibliographic Details
Main Author NAKATA SHINGO
Format Patent
LanguageEnglish
Japanese
Published 09.06.2016
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a control device capable of positively removing exhaust particulates accumulated at a particle filter while restricting deterioration in fuel economy and increase in discharged harmful substances.SOLUTION: When an accumulated amount of exhaust particulates estimated by an accumulated amount estimating part 14 exceeds a prescribed threshold of accumulated amount, a control device 10 of this invention performs a delay processing for delaying an ignition time by an ignition adjustment part 13 so as to cause a temperature of exhaust gas discharged from a cylinder 101 to be increased; super-charging for making an intake pressure for the cylinder 101 higher than a surrounding atmospheric pressure by operating a supercharger 400; and overlapping processing for changing opening and closing times of both an intake valve 110 and an exhaust valve 120 by a valve adjusting part 12 so that a part of the time in which the intake valve 110 is opened and a part of the time in which the exhaust valve 120 is opened overlap to each other.SELECTED DRAWING: Figure 1 【課題】燃費の悪化及び排出される有害物質の増加を抑制しながら、粒子フィルタに堆積している排気微粒子を確実に除去することのできる制御装置を提供する。【解決手段】この制御装置１０は、堆積量推定部１４によって推定された排気微粒子の堆積量が所定の閾堆積量を超えた場合には、気筒１０１から排出される排ガスの温度が上昇するよう、点火調整部１３により点火時期を遅角させる遅角処理と、過給装置４００を動作させることにより、気筒１０１への吸気圧を大気圧よりも高い状態とする過給処理と、吸気バルブ１１０が開状態となっている期間の一部、及び排気バルブ１２０が開状態となっている期間の一部が互いに重なるように、バルブ調整部１２により吸気バルブ１１０及び排気バルブ１２０のそれぞれの開閉時期を変更するオーバーラップ処理と、を実行するように構成されている。【選択図】図１
Bibliography:Application Number: JP20140243086