Fueling time based on engine speed and temperature

An engine control method of regulating fuel to be supplied to an engine, the engine control method performed by an engine control device including a starting fuel supply valve that supplies starting fuel to air to the engine or to an air-fuel mixture of air and fuel in starting the engine, an engine temperature detection unit that detects the temperature of the engine, an engine speed detection unit that detects the engine speed of the engine, and a control unit that controls the starting fuel supply valve to open and close to control the engine, the engine control method comprising:

• starting, the engine toward a targeted idle speed by the control unit;
• acquiring, the engine speed from the engine speed detection unit and the engine temperature from the engine temperature detection unit by the control unit;
• reading out, information in a setting map of an opening time of the starting fuel supply valve based on the engine speed and the engine temperature by the control unit, wherein the opening time is a time duration in which the starting fuel supply valve is open;
• and controlling, the starting fuel supply valve to open based on the opening time of the starting fuel supply valve in the read-out setting map by the control unit, wherein in response to the engine temperature being equal to 0 0C or lower and the engine speed being equal to or higher than 2500 rpm, the opening time of the starting fuel supply valve is set in the setting map to extend as the engine temperature decreases, and in response to the engine speed being equal to or lower than 2000 rpm, the starting fuel supply valve is set in the setting map to be closed wherein in response to the engine temperature being equal to or higher than 30°C and the engine speed being equal to or higher than 3000 rpm, the opening time of the starting fuel supply valve is set in the setting map to extend as (i) the engine speed increases or (ii) the engine temperature increases.