Chan-Se Jeong

A study on the development of multi-stage solenoid valve

Solenoid valves are the basic element part that widely used in various industries. According to the performance requirements of the market, it is available in a wide range of shapes and size. In this paper, a large flow multi-stage solenoid valve has been designed and developed by configuring the orifice, diaphragm and solenoid. At first each part has modeled and by combining them a virtual multi-stage solenoid valve has developed and finally the following results have derived from the simulation results of the developed model.

A Study on Manufacture and Control of a Self Manufacturing Hybrid Electric Vehicle

Abstract : In this paper, Hybrid Electric Vehicle is directly designed and manufactured for base study of HEV’s system and Green Car. Foundation design consists of power train design and the frame design. The power train concept includes motor, engine, generator and battery. And the concept of the frame is the single-seat of this self-made HEV. A frame installed in hybrid system contains suspension, steering wheel, seat, accelerating pedal, brake pedal, clutch handle and various chassis parts with bearings. Electromagnetic clutch is equipped to transmit engine power to drive axle. The control algorism make using LabVIEW to control of an engine and a motor depending on drive condition. A parallel type hybrid system is manufactured to control operation of a motor and an engine depending on vehicle speed. Key words : Hybrid electric vehicle( 하이브리드 전기 자동차), Magnetic(전자석), Parallel type(병렬형), Electronic control(전자제어), Hybrid system(하이브리드 시스템), Lab view(랩뷰), Self manufacturing hybrid electric vehicle(자작형 하이브리드 카)

Development Platform for the three-wheeled electric vehicle Unmanned

This paper describes a production process of unmanned 3-wheel vehicle. We selected EVs components and specification for the manufacturing of electric vehicles. and We made electric vehicle directly. Typical feature of our EV is method of motor drive. One motor is installed to rear wheel. we need to control at rear wheels. we measured steering angle, motor rpm. and We made program that control wheel operation dependent on vehicle speed and steering angle.