초록 ▼

An adaptive digital electronic control system for an internal combustion engine wherein a given speed modifying parameter is perturbated about a given setting and the resulting effect on the engine\s output shaft speed is computed for producing an electrical control signal for adjusting the setting

An adaptive digital electronic control system for an internal combustion engine wherein a given speed modifying parameter is perturbated about a given setting and the resulting effect on the engine\s output shaft speed is computed for producing an electrical control signal for adjusting the setting in a way which tends to maximize the shaft output power. Described are arrangements whereby the electronic control system can be applied to a spark ignition system, the air/fuel control of a standard carburetor or the air/fuel control of a fuel injection system.

대표청구항 ▼

An adaptive electronic control system for maximizing the speed of an engine shaft for a given setting of an engine speed modifying parameter, comprising: (a) first means for producing regularly occurring dither pulses of a frequency, f1; (b) means coupled to receive said dither pulses for varying sa

An adaptive electronic control system for maximizing the speed of an engine shaft for a given setting of an engine speed modifying parameter, comprising: (a) first means for producing regularly occurring dither pulses of a frequency, f1; (b) means coupled to receive said dither pulses for varying said parameter at said frequency, f1, about said given setting; (c) second means coupled to said shaft for continuously producing pulses at a rate substantially greater than the rate at which said dither pulses are produced and proportional to the instantaneous angular velocity of said shaft; (d) digital logic means coupled to said first and second means for comparing the number of pulses produced by said second means during the period of one-half of first and second portions of said dither pulses; and (e) means responsive to the output of said digital logic means for varying said parameter in a direction determined by the results of said comparison.