Study of the response surface prediction model of the dynamic response characteristics of the high-speed solenoid valve

For a more effective design and matching of the parameters of the high-speed solenoid valve, the numerical simulation method and response surface methodology (RSM) along with the design of experiments (DOE) are applied. The finite element model of the high-speed solenoid valve for the diesel engine electronic unit pump has been developed in the Ansoft Maxwell environment. Its accuracy has been verified through laboratory experiments and the maximum error rate of the closed response time is 2% and the maximum error rate of the open response time is 8.7%. The experimental research scheme of dynamic response characteristics of the high-speed solenoid valve was designed by central composite design (CCD). With the least square regression analysis, the multiple quadratic response surface models of the closed response time and open response time of the high-speed solenoid valve were obtained. The values of R2 and Q2 of the two models are 0.986, 0.867 and 0.999, 0.981, respectively, and the maximum error rate of the closed response time and open response time are 5.1% and 1.6%, respectively. Simulation experiment proves that the model can accurately forecast the dynamic response characteristics of the high-speed solenoid valve. This study provides an effective tool for the design and matching of the parameters of the high-speed solenoid valve.