A control device for an engine includes an angular velocity detecting unit that detects the angular velocity of a rotating shaft which is driven according to an output of an engine, an angular acceleration calculating unit that calculates angular accelerat...

There is provided an ignition timing control device for an internal combustion engine capable of appropriately performing knock learning by performing knock learning adapted to an engine combustion phenomenon. The inventor has found the principle of a knoc...

The evaporation rate and the oxidation rate of fuel injected into a combustion chamber are calculated, and a diffusion combustion start time is estimated to be the time when this fuel evaporation rate and fuel oxidation rate arrive in a state where the fue...

A method of assessing the functioning of an EGR cooler of an EGR system in an internal combustion engine, wherein the EGR cooler can be selectively operated in a first and a second operating condition; and wherein the engine comprises at least one cylinder...

A fuel injection control apparatus of an internal combustion engine capable of sufficiently reducing the amount of smoke generated while securing favorable ignition of fuel injected in main injection is provided. It is determined whether an injection time ...

In a compression self-igniting internal combustion engine in which fuel injected into a cylinder from a fuel injection valve combusts in the cylinder, and which can perform a main injection for main combustion and an auxiliary injection executed prior to t...

Method for estimation of spark timing in an internal combustion engine of Otto type, which method includes the following method steps: determining a desired engine torque, determining a requested spark advance value based on said desired engine torque usin...

A diesel engine comprising a fuel injection device (9), an EGR device (19), and a control device (26) for controlling the fuel injection device (9) and EGR device (19) so as to realize a premixed combustion in which a mixture is ignited after the end of fu...

When an air excess rate is controlled to be reduced based upon an early activation demand of an exhaust gas purification apparatus or a regeneration demand of NOx trap catalyst at a state immediately after an engine has started from at a cold condition, a ...