A fuel injection control system (11) is applied to an internal combustion engine (10) which has a fuel injection system executing a fuel injection. A control unit (40) is provided to control a fuel injection on the basis of a combustion noise derived from ...

The method of the protection of an internal combustion engine against excess pressure involves the measurement of the pressure in at least one cylinder (1), with modification of fuel input and/or combustion when the peak pressure in the cylinder interior e...

Combustion noise sensors (15a through 15d) are disposed in respective cylinders of an engine (1), and a gate circuit (18) detects combustion noises in the respective cylinders. The combustion noises are subjected to A/D conversion by a high-speed A/D conve...

At a number of important points the in-cylinder pressure variation is measured together with the crankshaft angle. These are stored as digital pairs in a data record if necessary with further engine specific parameters in a knowledge based system (10). The...

An apparatus for predicting cylinder pressure for on-vehicle control of an internal combustion engine (12) includes a piston sensor (18), a cylinder pressure sensor (20), and a controller (16). The piston sensor (18) is coupled to a piston located in the e...

The present invention provides a gas tight and simplified glow plug having a combustion pressure sensor. A plug main body 200 includes a cylindrical housing 201, mounted in an engine head 1 and has one end side positioned at a combustion chamber 1a side of...