ELECTRONIC GOVERNOR FOR ENGINE

摘要

PROBLEM TO BE SOLVED: To provide an electronic governor for engine capable of control gain setting in an optimal value in any of a case where a speed error value occurs due to load fluctuation and a case where the speed error value occurs due to changes in target rotation speed.SOLUTION: The electronic governor for engine comprises a control gain setting part 8 for setting a control gain; and control input calculating means 9 for calculating the control input of an air-fuel mixture supply amount adjusting part 3 for adjusting the air-fuel mixture supply amount necessary for the speed error value to be zero by applying an arithmetic proportional, integral, and differential processing to the speed error value using the control gain set by the control gain setting part 8. The control gain setting part 8 decides the control gain used for calculating the control input by amending the reference value of the control gain which is set up using both of a control gain correction factor at the time of the target rotation speed fluctuation decided corresponding to the fluctuation amount of the target rotation speed and a control gain correction factor at the time of the load fluctuation determined corresponding to the speed error value occurring when the load of the engine changes.