INTERNAL-COMBUSTION-ENGINE FUEL INJECTION CONTROL DEVICE

Provided is an internal-combustion-engine fuel injection control device which is capable of minimizing fluctuations in the amount of fuel injected by accurately controlling the boost voltage imparted to the fuel injection valve at the time of fuel injection, without increasing the cost or size of th...

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Main Authors FUJII YOSHIHISA, FUKUDA TAKAO, MUKAIHARA OSAMU, KONNO TAKESHI, SAKAMOTO HIDEYUKI, TOYOHARA MASAHIRO, WATANABE MITSUHIKO
Format Patent
LanguageEnglish
French
Japanese
Published 02.04.2015
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Abstract Provided is an internal-combustion-engine fuel injection control device which is capable of minimizing fluctuations in the amount of fuel injected by accurately controlling the boost voltage imparted to the fuel injection valve at the time of fuel injection, without increasing the cost or size of the fuel injection control device, even when the pulse width of the fuel-injection drive pulse for driving the fuel injection valve is short. This fuel injection control device (127) has a boost-operation control unit (15) for starting a boost operation at a prescribed timing when the detected voltage is higher than a boost-start threshold voltage and lower than a boost-stop threshold voltage, regardless of the size of the detected voltage. L'invention porte sur un dispositif de commande d'injection de carburant de moteur à combustion interne qui permet de réduire à un minimum des fluctuations dans la quantité de carburant injecté par la commande précise de la tension d'amplification communiquée à la vanne d'injection de carburant au moment de l'injection de carburant, sans augmenter le coût, ni la taille du dispositif de commande d'injection de carburant, même lorsque la largeur d'impulsion de l'impulsion de commande d'injection de carburant pour commander la vanne d'injection de carburant est courte. Ce dispositif de commande d'injection de carburant (127) possède une unité de commande d'opération d'amplification (15) pour démarrer une opération d'amplification selon une synchronisation prescrite lorsque la tension détectée est supérieure à une tension de seuil de démarrage d'amplification et inférieure à une tension de seuil d'arrêt d'amplification, quelle que soit la taille de la tension détectée.  燃料噴射弁を駆動する燃料噴射駆動パルスのパルス幅が短い場合であっても、燃料噴射制御装置の大型化や高コスト化を招くことなく、燃料噴射時に燃料噴射弁に印加される昇圧電圧を精度良く制御して燃料噴射量のばらつきを抑制することのできる内燃機関の燃料噴射制御装置を提供する。 燃料噴射制御装置127は、検出電圧の大きさに関わらず、検出電圧が昇圧開始閾値電圧よりも高く且つ昇圧停止閾値電圧よりも低いときに所定のタイミングで昇圧動作を開始する昇圧動作制御部15を有している。
AbstractList Provided is an internal-combustion-engine fuel injection control device which is capable of minimizing fluctuations in the amount of fuel injected by accurately controlling the boost voltage imparted to the fuel injection valve at the time of fuel injection, without increasing the cost or size of the fuel injection control device, even when the pulse width of the fuel-injection drive pulse for driving the fuel injection valve is short. This fuel injection control device (127) has a boost-operation control unit (15) for starting a boost operation at a prescribed timing when the detected voltage is higher than a boost-start threshold voltage and lower than a boost-stop threshold voltage, regardless of the size of the detected voltage. L'invention porte sur un dispositif de commande d'injection de carburant de moteur à combustion interne qui permet de réduire à un minimum des fluctuations dans la quantité de carburant injecté par la commande précise de la tension d'amplification communiquée à la vanne d'injection de carburant au moment de l'injection de carburant, sans augmenter le coût, ni la taille du dispositif de commande d'injection de carburant, même lorsque la largeur d'impulsion de l'impulsion de commande d'injection de carburant pour commander la vanne d'injection de carburant est courte. Ce dispositif de commande d'injection de carburant (127) possède une unité de commande d'opération d'amplification (15) pour démarrer une opération d'amplification selon une synchronisation prescrite lorsque la tension détectée est supérieure à une tension de seuil de démarrage d'amplification et inférieure à une tension de seuil d'arrêt d'amplification, quelle que soit la taille de la tension détectée.  燃料噴射弁を駆動する燃料噴射駆動パルスのパルス幅が短い場合であっても、燃料噴射制御装置の大型化や高コスト化を招くことなく、燃料噴射時に燃料噴射弁に印加される昇圧電圧を精度良く制御して燃料噴射量のばらつきを抑制することのできる内燃機関の燃料噴射制御装置を提供する。 燃料噴射制御装置127は、検出電圧の大きさに関わらず、検出電圧が昇圧開始閾値電圧よりも高く且つ昇圧停止閾値電圧よりも低いときに所定のタイミングで昇圧動作を開始する昇圧動作制御部15を有している。
Author SAKAMOTO HIDEYUKI
KONNO TAKESHI
FUJII YOSHIHISA
MUKAIHARA OSAMU
WATANABE MITSUHIKO
FUKUDA TAKAO
TOYOHARA MASAHIRO
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– fullname: TOYOHARA MASAHIRO
– fullname: WATANABE MITSUHIKO
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DocumentTitleAlternate 内燃機関の燃料噴射制御装置
DISPOSITIF DE COMMANDE D'INJECTION DE CARBURANT DE MOTEUR À COMBUSTION INTERNE
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RelatedCompanies HITACHI AUTOMOTIVE SYSTEMS, LTD
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Snippet Provided is an internal-combustion-engine fuel injection control device which is capable of minimizing fluctuations in the amount of fuel injected by...
SourceID epo
SourceType Open Access Repository
SubjectTerms BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
Title INTERNAL-COMBUSTION-ENGINE FUEL INJECTION CONTROL DEVICE
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