The time intervals by which an injection nozzle (26) for fuel, a feed nozzle for starting air and a gas switching valve (23) are activated by a control system (7) are flexibly programmable. A compression ignition condition for fuel is obtained in a first w...

The internal combustion engine uses a low pressure exhaust gas return (36) which extends from the exhaust (8) through a compressor (2a) driven off a turbine (30) and downstream of an exhaust gas chamber (35). The gas return branch opens into the engine int...

A fuel injection control device in which fuel injected into the combustion chamber (10) is ignited after a pre-mixing period has elapsed following the completion of the injection of the fuel, includes target pre-mixing period determining unit for determini...

The engine control method involves controlling an engine around the time of stopping the engine, whereby combustion is initiated during starting, by controlling the valve timing (IVO,IVC,EVO,EVC) so that when starting the engine and until reaching a define...

The invention relates to a method and an arrangement for operating an internal combustion engine. The method involves adjusting closing timing of the inlet valve to control the value of lambda from cycle to cycle by: measuring a lambda value and determinin...

The invention relates to an internal combustion engine that can be operated in compression ignition mode, comprising a fuel injector (2) for each cylinder; a fuel injection control unit (4) for controlling fuel injection quantity and a piston (5) in each c...

The value of residual gas indicating the residual gas partial pressure, evaluated in a test field for an early inlet valve timing angle (FRWE), is provided in a first graph (FU) for early overlap. It is also provided for a later outlet valve timing angle (...

The operating method has an actual engine parameter regulated for maintaining a required parameter value dependent only on the IC engine (7) in a stationary mode, via a first regulation unit (4) and regulated via a second regulation unit (5) in dependence ...

Method for estimating the filling of a cylinder (2) in an internal combustion engine (1) provided with cam stroke variation system (10). A theoretical induction efficiency ( eta thr) which the cylinder (2) would have if it operated with an optimal inductio...