Acceleration time controller for internal combustion engine

An acceleration time controller for an internal combustion engine, comprising control means for carrying out an enrich delay control operation which starts an enrich control operation for a power increase after an elapse of a predetermined time from a time when enrich control conditions are established at the time of acceleration of the internal combustion engine, wherein a throttle valve is provided along an intake passage of the internal combustion engine, wherein a throttle sensor connected in circuit with the control means is provided for detecting a throttle opening of the throttle valve, and wherein the control means has means for storing a previous throttle full opening time upon reception of a throttle opening signal from the throttle sensor, wherein means is provided for obtaining a new throttle full opening time by integrating the current throttle full opening time with the previous throttle full opening time, wherein means is provided for storing the new throttle full opening time as the previous throttle full opening time when the new throttle full opening time is less than the predetermined time, and wherein means is provided for starting the enrich delay control operation of the internal combustion engine when the new throttle full opening time is greater than or equal to the predetermined time, the means for obtaining the new throttle opening time including means for determining whether the previous throttle full opening time is in a range greater than zero and less than a first time constant, means for determining whether the idle is turned on within a second time constant, means for determining whether an idle on-time is in a range greater than zero and less than a third time constant and means for determining whether the enrich control conditions are met within a fourth time constant.