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JP6589939B2 |
To ensure satisfactorily both responsiveness to achieve a target air-to-fuel ratio and a sufficient air volume in a high load region in NOx reduction control.A NOx catalyst 41 is disposed in an exhaust passage 40 of an engine 1. A change...
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JP6588157B2 |
A multi-stage turbo supercharging system includes: a bypass passage which bypasses a turbocharger from among a plurality of turbochargers, in an intake passage or an exhaust passage of the engine; a bypass valve disposed in the bypass pa...
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JP2019167867A |
To further efficiently warm up an engine.An engine warmup system 100 comprises: an intake flow passage 18 communicating with an intake port 10 of an engine 1; an electric supercharger 22 provided in the intake flow passage 18, and compre...
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JP2019167926A |
To provide a control device of an engine which suppresses the blowout of intake air in a highland low-pressure environment, and can suppress the lowering of an engine output by securing an air quantity.In a flatland normal-pressure envir...
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JP6583370B2 |
To improve fuel economy performance and to increase torque of an engine with a supercharging system when load of an engine body is suddenly changed.A gas in an intake passage (40) is not supercharged when an engine body (2) is operated i...
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JP6582908B2 |
To suppress steep change of EGR rate in starting or stopping EGR control.In an exhaust recirculation control method of an internal combustion engine including: a turbocharger 4; an exhaust recirculation passage 9 communicating between an...
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JP6584346B2 |
To ensure combustion stability in a normal cylinder by adjusting content ratio of combustion promotive gas to a modified gas amount, even in a case where the modified gas amount from a modified cylinder to the normal cylinder sufficientl...
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JP6582533B2 |
To provide an EGR gas amount control method for a vehicle mounted with a VGT turbo, which enables proper EGR control even in a transit period, and a device therefor.In an EGR gas amount control method for a vehicle mounted with a VGT tur...
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JP2019157756A |
To provide a valve control device which can control an opening of a valve arranged in an intake/exhaust passage of an engine with high accuracy.An ECU 50 comprises: a state amount estimation part 52 for estimating a current value of an i...
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JP6575562B2 |
A NOx catalyst is provided on an exhaust passage of an engine. The NOx catalyst reduces the occluded NOx when an air-fuel ratio of exhaust gas is in the vicinity of a stoichiometric air-fuel ratio or in a richer state than the stoichiome...
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JP6576190B2 |
To perform control so that an EGR rate is to be a proper target even when work of an exhaust turbocharger is varied in an internal combustion engine comprising both an exhaust gas recirculation device and the exhaust turbocharger.A contr...
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JP2019152113A |
To suppress an increase in power consumption and the worsening of emission performance at the cold start of an engine without increasing the capacity of a battery.In start control during engine cold operation, a circulation passage (an i...
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JP2019152114A |
To suppress the worsening of emission performance during engine cold operation.A control device for an engine includes an electric supercharger 53, an exhaust emission control catalyst 61, means for detecting/estimating the active state ...
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JP2019148183A |
To provide a supercharging engine capable of suppressing deterioration of drivability and also suppressing intake pulsation.A supercharging engine is configured such that a waste gate valve 21 is installed in a bypass passage 19 that byp...
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JP6569384B2 |
To suppress deterioration of combustion stability in a deceleration state during EGR control.An internal combustion engine system 100 includes a first intake passage 2, a first exhaust passage 3 and a throttle chamber 4. The internal com...
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JP2019143488A |
To enhance the startability of an engine while suppressing a power reduction of a power source.A start control device for the engine includes a motor 20 for enabling forcible rotation of the engine when started, and an electric superchar...
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JP2019143489A |
To provide a start control device for an engine capable of achieving good startability of the engine.An electric supercharger 51 is provided in an intake passage 30, a bypass passage 64 is provided for bypassing the electric supercharger...
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JP2019143487A |
To achieve good startability of an engine while suppressing an early deterioration of a glow plug.An electric supercharger 51 is provided in an intake passage 30, a bypass passage 64 is provided for bypassing the electric supercharger 51...
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JP6565975B2 |
To provide an exhaust gas recirculation control device for an engine, which restricts recirculation of exhaust gas by an exhaust gas recirculation device when detecting a passage closing state due to turbines or blowers of exhaust turbo ...
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JP6565875B2 |
A fuel injection valve is for injecting fuel to cause combustion in an internal combustion engine. An injection rate adjuster is for adjusting an injection rate of the fuel injected by the fuel injection valve. A control device for the i...
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JP6565109B2 |
A negative pressure control valve (44) is disposed in a part of an intake passage (12) upstream of a confluence (30) of an EGR passage (27) and the intake passage (12). When in an EGR region (Regr) where an EGR gas is recirculated to the...
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JP2019138154A |
To suppress deterioration in turbo efficiency while improving constraint sufficiency when correcting target values of boost pressure and an EGR rate with a reference governor so as to improve the constraint sufficiency.A device for contr...
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JP2019138155A |
To form a variety of intake flows which are different in passage/non-passage to an electric supercharger and an intercooler while making an intake structure compact in a size.An intake structure of an electric supercharged engine compris...
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JP2019138193A |
To improve a supercharging response while suppressing power consumption caused by an electric supercharger, in an internal combustion engine having the electric supercharger.When a difference between target boost pressure and actual boos...
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JP2019138244A |
To properly process condensed water occurring in an intercooler in an engine with a supercharger which includes a turbocharger, an electric supercharger, and the intercooler for cooling intake air.An engine E with an electric supercharge...
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JP2019138156A |
To secure further higher combustion stability by improving ignition performance at a low temperature.An electric supercharged engine comprises: a vessel part 33 arranged between an upstream-side intake passage 32 and a downstream-side in...
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JP6561967B2 |
An internal combustion engine includes a throttle valve, an EGR passage, an EGR valve, a valve mechanism that adjusts opening and closing characteristics of an intake valve or an exhaust valve of the internal combustion engine, and a con...
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JP6562166B2 |
A control apparatus for an engine includes an engine (1), an EGR system (55), a spark plug (25), a controller (ECU 10), and a supercharging system (49). While a supercharging system is performing supercharging and the EGR system is intro...
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JP6562167B2 |
A control apparatus for an engine includes an engine (1), a state quantity setting device (23, 24, 43, 48, 54, 551, 552, 56), a spark plug (25), and a controller (ECU 10). After the spark plug ignites air-fuel mixture to start combustion...
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JP2019135386A |
To efficiently suppress turbo lag of a reciprocation-type internal combustion engine including a turbo supercharger.A reciprocation-type internal combustion engine (1) including a turbo supercharger (9), further includes a water injectio...
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JP6560097B2 |
To provide a vehicle engine supercharger control system capable of improving fuel efficiency.A supercharger 42 of a motorcycle: is driven by power of an engine E; and has a centrifugal type impeller 60. An intake control valve 69 to cont...
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JP6558407B2 |
To suppress combustion noise by properly performing combustion by compression self-ignition.A control device of a compression self-ignition type engine 1 controls compression self-ignition by ignition. The control device comprises an int...
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JP6558427B2 |
To suppress the NVH of a compression ignition type engine to a permissible value or lower during high revolution.A control device for the compression ignition type engine includes a spark plug 25, a controller 10, and an EGR system 55 fo...
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JP6560675B2 |
An improved exhaust gas recirculation (EGR) system comprises combustion chambers divided into a first portion and a second portion. An intake valve and an exhaust valve are associated with each combustion chamber. An intake manifold is i...
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JP6558426B2 |
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JP6559291B1 |
To provide an intake air cooling device abnormality detection system of an internal combustion engine capable of reliably detecting an abnormality of an intake air cooling device without delay even when a characteristic abnormality occur...
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JP2019132185A |
To provide a technique of improving acceleration response of a vehicle after restart of an internal combustion engine including a supercharger.In a case where an engine speed of an internal combustion engine is faster than a predetermine...
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JP6555312B2 |
A boosted engine is provided, which includes an engine body formed with a combustion chamber, a spark plug, a fuel injection valve, a booster, a boost controller, and a control unit including an operating range determining module and a c...
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JP6555310B2 |
To actualize combustion involving compression ignition while reducing combustion noise down to a permissible value or smaller.The geometric compression ratio of an engine body (2) is set to be 13 or higher so that, when the engine body i...
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JP6551677B2 |
To perform appropriate opening/closing control of an on-off valve in accordance with an operating state of an internal combustion engine and thus enable efficient water discharge.A condensed water discharge device is provided in an engin...
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JP6553580B2 |
The invention relates to a discrete time rate-based model predictive controller for air path control for a diesel engine. The controller regulates VGT position and EGR valve position to specified set points by coordinated control of inta...
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JP6551047B2 |
To suppress deterioration of combustion stability in a deceleration state during EGR control.An internal combustion engine system 100 includes: a first intake passage 2; a first exhaust passage 3; a throttle chamber 4; an exhaust recircu...
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JP2019124177A |
To perform adequate supercharge for a loadage in a vehicle using a plurality of superchargers in combination, while actualizing a longer battery life.A vehicle 1, which has an electric supercharger 50 to which electric power is supplied ...
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JP6550408B2 |
The present invention provides a device and method for detecting a misfire in an engine, the device being provided with: a rotation speed sensor (43) as a supercharger rotation speed measurement unit for measuring a rotation speed (Nt) o...
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JP6550110B2 |
An engine control device controls an engine. The engine includes a turbocharger, a waste gate valve, and a throttle. In a predetermined low load region, the engine control device performs first control in which the waste gate valve is op...
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JP2019120142A |
To enable an injection amount of fuel gas to be quickly increased according to abrupt rise of a load, in a gas engine connected to a supercharger.A gas engine control method comprises: predicting rise of a load before the load of a gas e...
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JP6540659B2 |
A control system for an internal combustion engine includes an exhaust gas passage, an intake passage, a turbocharger, a bypass passage, a waste gate valve, a turbo bypass valve, a throttle valve, and an electronic control unit. The elec...
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JP6540735B2 |
To prevent or suppress accumulation of soot in an EGR passage when executing NOx reduction control.A NOx catalyst 41 is arranged in an exhaust passage 40 of an engine 1. The NOx catalyst 41 reduces occluded NOx when an air-fuel ratio of ...
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JP6542592B2 |
To improve the estimation accuracy of a turbine upstream pressure.ECU50 comprises: a compressor output estimation part 52 for estimating a compressor output on the basis of a compressor upstream pressure, a compressor downstream pressure...
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JP6540682B2 |
A control apparatus for an internal combustion engine includes a turbocharger, a bypass passage, a waste gate valve, a turbo bypass valve, an air-fuel ratio sensor and an electronic control unit. The air-fuel ratio sensor is provided in ...
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