| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a control of low electric power consumption during engine idling time at low engine rotational speed, and achieve an optimum combustion state by changing a fuel flow rate with a solenoid valve in a machine-operating state, on the basis of engine rotational speed feedback control as the basic control method. <P>SOLUTION: A fuel control method for a handheld engine operating machine, during idling of the engine 9, performs: a rotational speed detection processing; an idling rotation control processing in which the detected rotational speed is compared with a predetermined rotational speed initial value, and the detected rotational speed is controlled to a rotational speed equal to the rotational speed initial value by means of ignition time control; and a valve opening correction processing based on the obtained value of control completion ignition time. Then, the fuel control method determines a valve opening in operating based on a variation amount of idling ignition time obtained in the valve opening correction processing. <P>COPYRIGHT: (C)2013,JPO&INPIT |
