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A fuel distribution control for an internal combustion engine having a fuel control computer and fuel delivery means for delivering fuel to the engine in response to electrical signals. A signal generator generating first signals indicative of the incremental rotational velocity of the engine\s outp

A fuel distribution control for an internal combustion engine having a fuel control computer and fuel delivery means for delivering fuel to the engine in response to electrical signals. A signal generator generating first signals indicative of the incremental rotational velocity of the engine\s output member resulting from the torque impulses imparted to the output member by the individual cylinders, averaging means for generating from said first signal an average rotational velocity signal, a circuit for generating a difference signal indicative of the difference between said first signals and said average rotational velocity signal, integrator means for individually accumulating said difference signals to generate a correction signal for each cylinder, means for averaging said correction signal to generate an average correction signal, means for summing said correction signal with the base fuel quantity signals generated by the fuel control computer to generate intermediate fuel quantity signals, and means for summing the correction signals to said intermediate fuel quantity signal to generate a corrected fuel quantity signal activating the fuel delivery means to deliver a quantity of fuel to each cylinder tending to equalize the contribution of each cylinder to the total output torque of the engine.

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A fuel distribution control for a multiple cylinder internal combustion engine having a rotary output member, a fuel control computer responsive to the operational parameters of the engine for generating base fuel quantity signals, fuel delivery means responsive to fuel delivery signals for deliveri

A fuel distribution control for a multiple cylinder internal combustion engine having a rotary output member, a fuel control computer responsive to the operational parameters of the engine for generating base fuel quantity signals, fuel delivery means responsive to fuel delivery signals for delivering fuel to each engine cylinder, and an operational cycle in which each cylinder produces a torque impulse rotating the engine\s output member; the fuel distribution control characterized by: means for detecting predetermined rotational positions of the engine\s output member to generate sequential position signals indicative of equal rotational intervals of the output member during an operational cycle of the engine, each of said equal rotational intervals being associated with the torque impulses produced by one of the engine cylinders; means for detecting when of of the engine cylinders has a predeterminable state to generate a reference signal once during each engine operational cycle. means for measuring the time between sequential position signals to generate period signals indicative of the time required by the output member to rotate through each of said equal rotational intervals, means for averaging said period signals to generate an average period signal, difference means for subtracting said period signals and said average period signal, one from the other, to generate a set of difference signals, one of said difference signals associated with each of said torque impulses; integrator means responsive to said reference and said position signals for accumulating said difference signals with respect to each of said rotational intervals to generate a set of correction signals, one correction signal associated with each of the engine cylinders; means for averaging said set of correction signals to generate an average correction signal; and means for summing said correction signals one at a time and in a predetermined sequence, with said average correction signal and said base fuel quantity signal to generate fuel delivery signals activating said fuel delivery means to deliver a quantity of fuel to each engine cylinder tending to equalize the torque impulse produced by all of the engine\s cylinders and equalize the contribution of each engine cylinder to the total torque output of the engine. A method for distributing the fuel being delivered to a multiple cylinder internal combustion engine having an output member rotatable through a predetermined angle during each operational cycle of the engine, fuel control computer means for generating base fuel quantity signals in response to the operational parameters of the engine, and fuel delivery means for delivering fuel to the cylinders in response to fuel delivery signals, and wherein the burning of the fuel in the individual cylinders produces torque impulses rotating the output member, said method comprising the steps of: detecting predetermined rotational positions of the engine\s output member to generate position signals dividing the predetermined angle of the engine\s operational cycle into equal angular increments equal in number to the number of cylinders in the multiple cylinder engine; detecting a predetermined state of one particular cylinder to generate a reference signal once during each operational cycle of the engine; measuring the time between said position signals to generate sequential first signals indicative of the magnitude of individual torque impulses imparted to the output member by the cylinders; averaging said sequentially generated first signals to generate an average first signal; subtracting said first signal and said average first signal, one from the other, to generate difference signals; activating a plurality of accumulators with said reference and said position signals to individually accumulate said difference signals with respect to each cylinder to generate fuel quantity correction signals for each cylinder; averaging the fuel quantity correction signals for all of the cylinders to generate an average fuel quantity correction signal; summing said base fuel quantity signal with said average fuel quantity correction signal and the fuel quantity correction associated with cylinder to which fuel is to be delivered to generate a corrected fuel quantity signal; and activating fuel delivery means with said corrected fuel quantity signals to deliver a quantity of fuel to each engine cylinder tending to equalize the contribution of each cylinder to the total output torque of the engine.