The adaptive fuzzy control of electromagnetic actuator in diesel fuel injection system

In this paper, the control problem of the electromagnetic actuator in an electronically controlled diesel fuel injection system is studied. From the analyses of theory and experiments, it can be seen that the electromagnetic actuator has obvious nonlinear and time-variability and it is affected by temperature greatly. So, a method of bang-bang+adaptive fuzzy combined control, in which bang-bang control is adopted on the condition that the deviation is relatively big, is represented. Experiments show that this control method can obtain quite a good control effect.