초록 ▼

An electronic engine control apparatus in which the timing of the ignition and the fuel injection are calculated from a negative pressure in the intake manifold of the engine or the flow rate of suction air and the rotational speed of the engine. A reference register group is constituted of register

An electronic engine control apparatus in which the timing of the ignition and the fuel injection are calculated from a negative pressure in the intake manifold of the engine or the flow rate of suction air and the rotational speed of the engine. A reference register group is constituted of registers for storing the result of the calculation while an instantaneous register group is made up of registers for storing the instantaneous states of actuators. One of the registers of the reference register group and one of the registers of the instantaneous register group are selected according to a stage timing signal so that the contents of the two registers selected are compared with each other.

대표청구항 ▼

For use in a processor-controlled apparatus for controlling the operation of an internal combustion engine for which a plurality of sensors produce signals representative of operating conditions of said engine and being coupled to actuator means for controlling respective energy conversion functions

For use in a processor-controlled apparatus for controlling the operation of an internal combustion engine for which a plurality of sensors produce signals representative of operating conditions of said engine and being coupled to actuator means for controlling respective energy conversion functions of said engine in response to control signals applied thereto; an improved control apparatus comprising, in combination: first means for generating an engine control timing signal pattern through which operational events of said engine are controlled; second means for storing engine control codes coupled thereto; third means, coupled to said first means, for generating respective engine timing codes the values of which are selectively modified by said engine control timing pattern; fourth means, coupled to said second and third means, for comparing respective ones of said engine control codes with respective ones of said engine timing codes and producing respective output signals when said respective engine control codes define a prescribed relationship with respect to said engine timing codes; and fifth means, coupled to said fourth means, for producing control signals to be coupled to said actuator means in response to the output signals produced by said fourth means. For use in a processor-controlled apparatus for controlling the operation of an internal combustion engine having an output shaft driven by mechanical energy converted from heat energy released by the combustion of fuel, said engine including igniting means for igniting the fuel to generate heat energy in accordance with conditions of said engine, said igniting means initiating the charging of ignition energy at energy charging timing and igniting the fuel at ignition timing, and for which a plurality of sensors produce signals representative of operating conditions of the engine and having digital converting means for converting the outputs of the sensors into corresponding digital signals; a control apparatus for generating output pulses to drive said igniting means in accordance with the digital outputs of said processor, said control apparatus comprising, in combination: stage signal generating means for repetitively generating at least first and second stage signals corresponding to prescribed engine timing operations, a first plurality of registers including at least first and second registers coupled to said stage signal generating means, said first register storing outputs of said processor defining said charging timing and selected in response to said first stage signals for providing stored data, said second register storing the output of said processor defining said ignition timing and selected in response to said second stage signal for providing stored data, counter means including at least first and second counters for storing respective codes representative of the instantaneous condition of said igniting means and coupled to said stage signal generating mans, said first counter being selected in response to said first stage signal, said second counter being selected in response to said second stage signal, a comparator for comparing the contents of a selected one of said first plurality of registers with the contents of a selected one of said second plurality of registers, and output means including a plurality of storage means for storing the outputs of said comparator and delivering the output to the igniting means, said output means being coupled to the stage signal generating means and to one of said storage means being selected in response to a stage signal for receiving an output of said comparator.