· 논문명 : Optimization of Dynamic Performance of a Solenoid Actuator in a CNG Injector Based on the Effects of

                  Key Design Parameters

· 저    자 : Nguyen Ba Hung, Ocktaeck Lim*

· 게재지 : International Journal of Automotive Technology (2024, 25, 639-649)

· 초록

model-based study is conducted to optimize the dynamic performance of a solenoid actuator in a compressed

natural gas(CNG) injector. A mechanical model, an electromagnetic model, and an optimum model using particle

swarm optimization(PSO) algorithm are built to depict operation and optimize the dynamic response times of the

injector solenoid actuator. Effects of the number of coil turns (N), spring stiffness (k), and gap between plunger

and cylinder wall (g), on the dynamic characteristics of the injector solenoid actuator are investigated. 

Simulation results show that, when k increases from 560 to 2560 N/m, and g increases from 0.1 to 0.5 mm,

the opening response time increases 35.41% and 48.03%, respectively; however, the closing response time 

of the injector solenoid actuator reduces 27.27% and 45.25%, respectively. When N is increased from 342 to 

552, the opening response time reduces 35.48%; nevertheless, the closing response time increases 

considerably with a 195.45% increment. Using PSO algorithm, it is found that the optimum version of the injector

solenoidactuator has improvements for both opening and closing response times, in which the opening

response time reduces 11.41% when compared with the original version.