25권 5호 525-532 2017 [한국자동차공학회 논문집 ]
| 제목 | 전자식 CNG 레귤레이터의 특성에 관한 실험적 연구 |
|---|---|
| 분야 | 전기동력자동차 |
| 언어 | Korean |
| 저자 | 남충우(자동차부품연구원), 이호길(자동차부품연구원), 김재광(모토닉), 문성준(자동차부품연구원), 김구호(모토닉), 이강윤(컨트롤웍스) |
| Key Words | Electronic pressure regulator(전자식압력레귤레이터), Compressed natural gas(압축천연가스), Pulse width modulation(펄스폭변조), Fuel rail pressure(연료레일압력), Solenoid valve(솔레노이드 밸브), Heat exchange(열교환) |
| 초록 |
The aim was to develop a new generation of electronic pressure regulator that can continuously vary the rail pressure in front of the injectors. The new pressure regulator can react on different pressure requirements in the CNG rail. The focus was on the functional optimization and size reduction. The proportional valve, which is a solenoid valve, is controlled by a PWM signal. Duty cycle 0 % means a closed valve, while 100 % means the proportional valve is fully open. The pressure regulation is divided into two stages. The first stage is mechanical regulation from a tank pressure of 0.2 to 26 MPa to a constant middle pressure of 2 MPa. The different type regulators was labeled as 1) A sample and 2) B sample. Through the bench experiment, the stroke characteristic of supply voltage, heat exchange effect on the low pressure side depending on cooling water capacity and cross-section area, the mass flow of different inlet pressure and rail pressure, and behavior in the regulator were evaluated and compared. |
| 원문(PDF) | 다운로드 |