Year: 2018 Volume: 1 Issue: 3 Page: 175-184
DESIGN OF ON-OFF TYPE SOLENOID VALVE FOR ELECTROPNEUMATIC BRAKE SYSTEMS AND INVESTIGATION OF ITS STATIC CHARACTERISTICS
ERSEL BALİ, ELİF ERZAN TOPÇU
Proportional solenoids are generally preferred in the solenoid valve parts of electropneumatic brake valves used in brake systems of heavy vehicles. Using of proportional solenoid valve in the system, a proportional relationship is obtained between the current and the magnetic force in a specific working region, independently of the displacement of moving element. According to applied magnetic force, the moving element of the solenoid moves and the proportional flow required for the fluid part of valve is transmitted to the system. In applications about flow control, it can be seen that proportional mass flow rate output can be obtained by using on-off type solenoid valves driven by various techniques such as Pulse Width Modulation (PWM). In this study, a solenoid design which is the first phase for analyzing the usability of on-off type solenoid in electronically controlled pneumatic brake systems has been made and static characteristics of solenoid have been investigated theoretically. Solenoid has been sized according to specific design parameters and modeled by using ANSYS/Maxwell finite element program. Static characteristics of the solenoid defined by current-displacement- magnetic force and current-displacement-magnetic flux linkage curves have been obtained.
Anahtar Kelimeler (Keywords): Solenoid, Electropneumatic Brake Valve, On-Off Type Solenoid