An engine system is provided with an adjustment apparatus, which adjusts an engine output parameter; and an exhaust gas recirculation (EGR) passage, which connects an exhaust passage on a downstream side relative to exhaust gas purification apparatuses with an intake passage, and returns EGR gas as…
An engine includes an exhaust manifold, and an EGR cooler connected to the exhaust manifold. The EGR cooler overlaps, in a rear view, with a gear case cover which is arranged to face a flywheel housing to be protected from an external impact, particularly, from an impact from the rear side.
An internal combustion engine () includes: an exhaust gas recirculation unit equipped with an exhaust gas recirculation control valve (); a crank angle sensor () that detects an indicated mean effective pressure fluctuation rate (cPi) as an indicator of combustion stability of the internal…
A method for controlling an EGR system includes determining whether diagnosis conditions for an EGR cooler are satisfied while the EGR system operates. The EGR system is turned off when the diagnosis conditions for the EGR cooler are satisfied and a retard amount of ignition timing is larger than a…
The invention relates to an exhaust system state detection device that has a simple configuration and can effectively detect an exhaust gas temperature. The exhaust system state detection device includes an intake air oxygen concentration sensor (32) that detects an oxygen concentration of an…
An EGR control unit (34S), in accelerating an engine, closes an EGR valve (19) to stop EGR, in a case where an increased amount (Q) of a fuel injection amount (Q) detected by a fuel injection detection unit (31S) is larger than a preset first threshold value (Qc), a boost pressure (Pb) detected by…
An object of the present disclosure is to provide a control method and apparatus which are capable of stably securing an exhaust gas recirculation (EGR) flow rate for implementing low temperature combustion by expanding a control range of EGR, and in order to achieve the object, the present…
A control device for a diesel engine that is capable of restraining deterioration of a combustion state in a wide range of temperature environment conditions, in a diesel engine including an EGR device. In the control device for a diesel engine including the EGR device which recirculates exhaust…
An object of this invention is to enhance the accuracy of control of an EGR rate or an EGR amount by actuation of an EGR valve in an internal combustion engine in which an exhaust passage and an intake passage are connected through the EGR valve. To achieve this object, a control device according…
An object of this invention is to provide an exhaust circulation apparatus for an internal combustion engine that, in an internal combustion engine that performs homogeneous combustion, can improve fuel consumption and suppress the amount of discharged NOx by expanding an operating region in which…
The present invention relates to a control unit of an internal combustion engine capable of performing a coordinate control of an exhaust gas recirculation (hereinafter abbreviated as "EGR") gas supply amount by an EGR apparatus and a supercharging amount by a supercharger provided with a variable…
A spark ignition internal combustion engine includes an exhaust gas reflux device capable of refluxing exhaust gas having passed through a catalyst for exhaust gas purification to an intake passage, an ignition timing control means for setting an ignition timing retard amount capable of preventing…
[Abstract] The invention relates to a control apparatus for an internal combustion engine (10) including a control target (60V, 52) that controls controlled variable (Pim, Regr). The control apparatus according to the invention is capable of selectively performing single control that is control for…
In an internal combustion engine that performs calculation processing by using a multicore processor having a plurality of cores, efficient distribution of cores for use corresponding to a calculation load of the internal combustion engine is performed. A control device of an internal combustion…
The present disclosure refers to a method and apparatus for recirculating an exhaust gas flow of a large internal combustion engine (10) having an air inlet (15) and an exhaust gas outlet (20). The method may comprise the steps of diverting a first partial exhaust gas flow at the exhaust gas outlet…
The engine system 1 includes: an engine ECU 10; an EGR path 16 communicating an exhaust manifold 13 with an intake manifold 11; an isolation valve 163 is capable of closing an exhaust gas inlet portion of the EGR path 16; and a diesel throttle 19, wherein the opening degree of the diesel throttle…
An internal combustion engine executes EGR and controls the air-fuel ratio based on a detected oxygen concentration in the exhaust. An electronic control unit (20) controls the engine such that the detected value for the air-fuel ratio upstream from a front catalyst (14) provided in an exhaust pipe…
The present invention makes it possible to accurately determine an EGR rate from an in-cylinder pressure. An EGR rate determination method for an internal combustion engine according to the present invention, a combustion period is calculated by using in-cylinder pressure data measured by an…
Embodiments of the present invention may include a system for evaluating a possible abnormality in an engine (2). The system includes an engine (2), an EGR passage (4, 5) and an ECU (6). The rotational speed of the engine (2) is preferably calculated based on a crank angle. The ECU (6) preferably…
An exhaust gas recirculation device for an internal combustion engine (1) is provided. The device has an intake air charging unit comprising an intake air passage (2) that intakes intake air, an exhaust passage (3), an exhaust gas recirculation passage (20) and an exhaust gas recirculation valve…
The working gas circulation engine includes a combustion chamber (11) to which plural kinds of reactant gas and working gas having a higher specific heat ratio than air are supplied and in which the working gas is expandable corresponding to reaction of the plural kinds of reactant gas, a…
Providing an exhaust gas recirculation control device of an internal combustion engine by which overshoots or undershoots of an EGR control valve can be prevented, and the tracking performance as to target openings as well as the reliability of the device can be enhanced based on simple control…
A control device of a control valve used for an intake air-gas system of an engine, the device including, but not limited to: the control valve which is an intake air throttle valve provided in the intake air-gas system provided in the intake air-gas system of the engine to control the flow rate of…
A control device for an engine (1), provided with: an EGR mechanism (2) for recirculating exhaust gas to the air intake system of the engine (1); a fuel injection valve (3) for injecting fuel into a combustion chamber of the engine (1); a fuel injection controller (24) for controlling the fuel…
In an control apparatus of an internal combustion engine, a technique is provided in which a proper amount of EGR gas can be supplied while making narrower a range within which exhaust pulsation propagates. In the control apparatus of an internal combustion engine including an EGR passage (41) that…
An EGR device for an internal combustion engine has an EGR means to return an EGR gas from an exhaust passage to an intake passage of an engine. The EGR device is configured to determine a target EGR ratio from an engine rotation number and an engine load and calculate an estimate EGR ratio from an…
The present disclosure refers to a method and apparatus for recirculating an exhaust gas flow of a large internal combustion engine (10) having an air inlet (15) and an exhaust gas outlet (20). The method may comprise the steps of diverting a first partial exhaust gas flow at the exhaust gas outlet…
An exhaust gas module comprising of a housing (12), at least one inlet (14) of the housing, a plurality of outlets (16a,16b) in the housing, and a valve (18) inside the housing, wherein exhaust gas passes through an EGR path (36) when directed to a first outlet. A single actuator is used to control…
The invention concerns a system and a control and adjustment apparatus of exhaust gas recirculation (EGR) in a supply plant of an internal combustion engine (MCI), boosted in terms of temperature and flow rate of the recirculation gases, both in stationary and in transient conditions. According to…
An internal combustion- engine comprising, an engine management unit, a combustion chamber having an inlet port and an outlet port, a fuel supply mechanism to supply gasoline to the engine, a valve train mechanism to permit introduction of air to the inlet port of the combustion chamber and release…