Title :
A novel electromagnetic latching device for variable valve timing in automotive engine
Author :
Kim, Jin-Ho ; Chang, Joung-Hwan ; Park, Se-Myung ; Hwang, Ki-Il ; Lee, Jae-Yong
Author_Institution :
Dept. of Mech. Eng., Yeungnam Univ., Gyeongsan, South Korea
Abstract :
One of the most promising ways to improve fuel economy, reduce CO2 emissions and increase torque output is to achieve variable valve timing (VVT). Some of the devices developed in the past years include mechanical, hydraulic, motor-driven and electromagnetic actuators. Existing most advanced system is an electromagnetic actuator using solenoids to activate engine valves. It, however, needs the current continuously in all operation period and has difficult starting problem resulting in low power efficiency. In this paper, we propose a novel electromagnetic valve drive system, and discuss the design, finite element analysis and construction of the experimental apparatus.
Keywords :
drives; electromagnetic devices; engines; finite element analysis; hydraulic actuators; solenoids; timing; valves; automotive engine; electromagnetic actuators; electromagnetic latching device; electromagnetic valve drive system; finite element analysis; hydraulic actuators; mechanical actuators; motor-driven actuators; torque output; variable valve timing; Automotive engineering; Drives; Electromagnetic devices; Engines; Fuel economy; Hydraulic actuators; Solenoids; Timing; Torque; Valves;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481044