Injected fuel quantity compensation method for e.g. two cylinder internal combustion engine, involves determining orders of vibrations of crankshaft such that sum of pointers of torque contributions of cylinder results to null order

摘要

The method involves assigning a fuel injector to a cylinder, and providing a rotation angle sensor for detecting a rotation angle of a crankshaft. Evaluable orders of rotational vibrations of the crankshaft are determined in such a manner that sum of pointers (Z, 1, 2) of torque contributions of the cylinder results to a null order with same amount of pointers. Non-evaluable orders of vibrations of rotational speed are filtered by a band pass filter, where angular ignition spacing of the cylinder is non-equidistant/unequal. Independent claims are also included for the following: (1) a computer program for executing a method for compensation of injected fuel quantity of an internal combustion engine (2) a control device for an internal combustion engine.