Patent ID: 8660774
Filing Date: 2014-02-25
Classification: F02D

Abstract:
1. An engine governor comprising: a fuel supply amount calculation means calculating a supply amount of fuel to an engine based on speed difference between a target engine speed and an actual engine speed by PI control or PID control, characterized in that in the case that speed difference between the target engine speed and an idle engine speed which is set to the minimum speed by an engine speed set means is not more than a first predetermined engine speed, the speed difference between the actual engine speed and the target engine speed is not less than a second predetermined engine speed, and a fuel supply amount calculated by the fuel supply amount calculation means is not more than the permissible minimum value of the actual engine speed, a P gain is set to be not less than a value determined from the target engine speed, a P gain map and a P gain water temperature correction coefficient map, and in the case that an I component is negative, the I component is set to zero.