FUEL TIMING CONTROL

摘要

The invention relates to a spark ignited engine in which charge stratification occurs within the combustion chamber and in which the burn quality of the charge is dependent upon the timing of the instant of introduction of the fuel into the charge. A sensor is provided to produce a signal representative of the burn quality and the fuelling timing is controlled in dependence upon the output signal of the sensor so as to optimise the charge stratification within the combustion chamber.