The mass flow measuring method has the mass flow along an exhaust gas feedback line (5) for the IC engine (10) determined from the drop in the temperature along the exhaust gas feedback line and the temperature at a setting element (1) controlling the mass...

The invention proposes that the thermal flow to and from the induction pipe wall which varies with continually changing exhaust gas flow rate is determined. Likewise the continually changing temperatures of the pipe are determined. This provides a model of...

The present invention relates to an EGR control unit and EGR control method for controlling an EGR adjusting apparatus (10), and it is an object of the invention to calculate an EGR rate at a low cost and to control an operation of the EGR apparatus (10) w...

In a diesel engine (1) provided with an exhaust gas recirculation mechanism (9, 10), a fuel injection timing is calculated by considering a delay of air aspirated by the cylinders of the engine (1) and a delay of exhaust gas recirculation. By performing fu...

Method for estimation of the quantity of fresh air (maira, mairs) present in the intake and exhaust manifolds (3, 5) of an internal combustion engine (1) with a recirculation circuit (9, 10), by an observer (O), applied to a system (S) of the third order, ...

An apparatus for controlling exhaust gas recirculation in a motor vehicle having an internal combustion engine with an intake duct to allow influx of air into the engine, an exhaust duct to allow escape of exhaust gas from the engine, an exhaust gas recirc...