Model based tuning of a variable-speed governor for a distributor fuel-injection pump

Abstract

Rather obsolete, mechanical governors are still used in an enormous number of existing and even some new diesel engine injection systems. Change of a governor characteristic and adapting to a specific engine application is possible through adjustments of governor's elements. In order to achieve fast and accurate evaluation of adjustable parameters, mathematical model of a governor is introduced. This paper deals with the impact of adjustable parameters on static and dynamic characteristics of the mechanical variable-speed governor in DPA distributor type fuel injection pump. Dynamic testing of a closed loop Diesel engine - governor - injection system is conducted within comprehensive 1D multidomain simulation environment.

Keywords

• diesel engine
• speed governor
• mathematical modeling
• multidomain simulation