摘要:
A dehydrogenated fuel tank 32 which is replenished with an organic hydride-contained hydrogenated fuel and a gasoline tank 48 which is replenished with normal gasoline are provided. In order to separate the hydrogenated fuel into a hydrogen rich gas and dehydrogenation product, a dehydrogenation reactor 22 and a separator 40 are provided. The hydrogen rich gas flows into a hydrogen pipe 44 and is supplied into the intake pipe 12. A dehydrogenation product pipe 42 is provided with a flow separator 46. The dehydrogenation product is guided into the gasoline tank 48 until the mixed ratio of the dehydrogenation product reaches the maximum allowable ratio in the gasoline tank 48. Only if the ratio reaches the maximum allowable ratio, the dehydrogenation product is collected into a dehydrogenation product tank 50.
摘要:
When the amount of fresh air drawn into a combustion chamber is designated Ma and the amounts of exhaust gas recirculated into the combustion chamber by external and internal recirculation mechanisms are designated Megre and Megri, respectively, the exhaust gas recirculation rate (Regre) is defined as (Megre+Megri)/(Ma+Megre+Megri). The base ignition timing applied when Regr=0 is set based on the operating state of an internal combustion engine. An advance amount (IGad) is set such that the characteristic of an increase in IGad with respect to an increase in Regr is a downward convex characteristic. The ultimate ignition timing is set to a timing that is advanced from the base ignition timing by the advance amount (IGad).
摘要:
A multi-cylinder engine includes an EGR mechanism for introducing exhaust gas into intake air, and is capable of a partial cylinder operation in which combustion in a part of the cylinders is halted. The multi-cylinder engine includes an EGR rate control unit for setting an introduction rate at which the exhaust gas is introduced into the intake air to be lower in a first partial cylinder operating state in which the ignition intervals are unequal, than in a second partial cylinder operating state, in which ignition intervals among a plurality of operating cylinders are equal.
摘要:
The present invention relates to a system that is capable of freely selecting one or two or more types of fuel and supplying the selected types of fuel to an internal combustion engine. Disclosed is a hydrogen-fueled internal combustion engine that operates upon receipt of one or more types of fuel that are selected from hydrogenated fuel and a dehydrogenated product and hydrogen, which are obtained by dehydrogenating the hydrogenated fuel. The hydrogen-fueled internal combustion engine comprises: a hydrogenated fuel storage section; reaction means for invoking a dehydrogenation reaction; separation means for separating hydrogen-rich gas and dehydrogenated product; and a dehydrogenated product storage section for storing the separated dehydrogenated product.
摘要:
An internal combustion engine system comprises: a dehydrogenation reactor which performs a dehydrogenation reaction to separate organic hydride-contained fuel into hydrogen and dehydrogenated fuel; supply means which supplies separated hydrogen and dehydrogenated fuel individually to the internal combustion engine; and control means which switches the operation of the internal combustion engine between a first mode in which both hydrogen and dehydrogenated fuel are supplied to the internal combustion engine and a second mode in which only hydrogen is supplied to the internal combustion engine.
摘要:
An internal combustion engine system comprises: a dehydrogenation reactor which performs a dehydrogenation reaction to separate organic hydride-contained fuel into hydrogen and dehydrogenated fuel; supply means which supplies separated hydrogen and dehydrogenated fuel individually to the internal combustion engine; and control means which switches the operation of the internal combustion engine between a first mode in which both hydrogen and dehydrogenated fuel are supplied to the internal combustion engine and a second mode in which only hydrogen is supplied to the internal combustion engine.
摘要:
With a control apparatus of a multiple cylinder internal combustion engine, external EGR that circulates exhaust gas in an exhaust passage to an intake passage is executed, and an air-fuel ratio is feedback-controlled such that an air-fuel ratio of the exhaust gas comes to match a predetermined target air-fuel ratio. When a rich deviation in which the air-fuel ratio of a portion of cylinders is off to a rich side from the target air-fuel ratio is detected, a parameter indicative of an amount of the rich deviation is calculated. The target air-fuel ratio is corrected to the rich side according to the calculated parameter. A value of a parameter at which the rich correction is started is changed according to whether external EGR is being executed.
摘要:
In some cylinder deactivation modes (e.g. virtual V-four operation mode in which two cylinders of a V-six engine are deactivated), ignition/combustion may take place in operating cylinders at uneven intervals. In this case, the output torque varies between the immediately subsequent operating cylinders after the deactivated cylinders in the firing order and the other operating cylinders. A multicylinder engine includes an ignition timing adjustment unit. When the ignition takes place in the operating cylinders at uneven intervals during cylinder deactivation, the ignition timing adjustment unit adjusts ignition timing in each of the operating cylinders to smooth the output torque of the operating cylinders.
摘要:
Provided is a control apparatus for an internal combustion engine, which can adequately perform the control of a fuel injection amount even when an abnormality, a disconnection or the like of a fuel pressure sensor occurs and thereby accurate fuel pressure information is not able to be obtained.A fuel injection valve (26) is provided which is capable of directly injecting fuel into a cylinder. If a target fuel injection amount is smaller than a minimum fuel injection amount that is minimum and is capable of injecting during one opening and closing operation of the fuel injection valve (26), the start timing of fuel injection is set within a period in which an exhaust valve is opened during an exhaust stroke.
摘要:
Disclosed is a control device that is for an internal combustion engine with a supercharger and capable of handling an operation resumption request during an internal combustion engine stop period in a situation where waste-gate valve control is exercised in consideration of pumping loss at the time of internal combustion engine stop. The internal combustion engine includes a turbocharger and a waste-gate valve. When the operation resumption request is generated while the internal combustion engine is stopped due to automatic stop control, the waste-gate valve fully opens as far as the engine speed is not lower than a predetermined revolution speed. Further, self-recovery control is exercised over the internal combustion engine (or more specifically, a fuel injection and ignition operation is resumed). Meanwhile, in a case where the engine speed is lower than the predetermined revolution speed when the operation resumption request is generated, the waste-gate valve fully closes. Subsequently, stop control, which has already been initiated, is continuously exercised to bring the internal combustion engine to a complete stop. The waste-gate valve reverts to an open position in preparation for the restart of the internal combustion engine.