Dynamic response optimization of high-speed solenoid valve via magnetic isolation slice design

High-speed solenoid valves (HSVs) are widely applied in fuel injection, hydraulic control, and high-speed switching systems, where their dynamic response performance directly determines overall system efficiency and stability. Considerable research efforts have been devoted to improving HSV performance, particularly through advancements in electromagnetic coil structures and driving circuits. However, investigations into magnetic isolation structures remain relatively limited. Existing designs often lack comprehensive parameter analyses and frequently suffer from issues such as complex fabrication and high cost, which hinder their broader application in engineering practice. To address these challenges, this study proposes a novel magnetic isolation slice design aimed at enhancing the dynamic response characteristics of HSVs. A quadratic correlation model was established to describe the relationship between magnetic isolation slice parameters and response time, and a response surface methodology was employed to systematically analyze the influence of these parameters on dynamic performance. The results indicate that optimized magnetic isolation slice parameters reduce the HSV opening time by 76.0% and increase the electromagnetic force at the fully open state by 46.9%, thereby significantly enhancing the dynamic performance of the HSV. This work not only significantly enhances the performance of HSVs in industrial automation, automotive electronics, and intelligent control systems but also has important implications for the design and performance optimization of precision scientific instruments, such as automated analytical instruments and fluid dynamics devices. This study provides essential technical support for the development of efficient and precise scientific instruments, contributing to the advancement of modern scientific instrument performance.