COMBUSTION CONTROL BASED ON A SIGNAL FROM AN ENGINE VIBRATION SENSOR

摘要

The invention relates to a method of performing feedback control of the operation of an internal combustion engine based on a signal from a vibration sensor and a crankshaft angle sensor. An energy factor can be computed based on these sensor signals which provides an estimate of the combustion phasing and combustion intensity. A vector of energy factors can be computed as a function of crank angle degree over a particular window of engine rotation of interest. Based on the energy factor vector, combustion phasing can be estimated.