Patent ID: 6769412
Filing Date: 2004-08-03
Classification: F02D

Abstract:
A method for injecting fuel into a multi-cylinder internal combustion engine with at least one injection valve (2) per cylinder (7), with a camshaft (5) for actuating the inlet valves (6), which rotates at half the rotational speed of the crankshaft (8), with a crankshaft sensor (4), which supplies one crankshaft signal (CRK) representing the crankshaft angle with a synchronization pulse (S) for leach revolution of the crankshaft, and with a central control unit (1), which controls the injection valves (2) in such a way that they each inject one preliminary fuel injection (I) per cylinder (7) in a defined sequence during a starting phase and then inject quantities of fuel determined by the control unit (1) in normal sequential injection mode, wherein different quantities of fuel for the preliminary injections (I) are specified, depending on the sequence of preliminary injections (I) and on the air charges to be expected in the relevant cylinders (7).