Diesel Engine Running at Constant Speed Base on Fuzzy Control Strategy

The functional relationship among the cylic oil quality of diesel engine, rack displacement and the engine speed was obtained by Orthogonal Test, significance of the regression equation was test by variance analysis. Based on the model, using the fuzzy control method, the voltage to stepping motor was controlled by the method according to the engine speed and its variation rate, which can controll the diesel engine speed percisely. From the simulation result, it shows that the diesel engine run at the range of the set speed effectively by the fuzzy control strategy, and controlling effect is significant.