10-15 2026 [춘계학술대회]
| 제목 | 가솔린 직분사 인젝터 전기적 특성을 활용한 온도 예측 및 열해 방지 방안 |
|---|---|
| 분야 | 모빌리티 동력 및 구동시스템 |
| 언어 | Korean |
| 저자 | 박형주(현대케피코), 유성목(현대케피코), 조현제(현대케피코), 정찬호(현대케피코), 김상민(현대케피코) |
| Key Words | ECU(엔진컨트롤유닛), EU7(유로7), GDI Injector(가솔린 직분사 인젝터), Multiple-injection(다단 분사), Thermal damage(열해) |
| 초록 |
Various engine control technologies have been actively researched to cope with enhanced fuel efficiency regulations, and precise control of fuel injection amount is a very important factor. In particular, a GDI (Gasoline Direct Injection) engine injects fuel directly into a cylinder. It contributes to improving combustion efficiency and increasing output. However, depending on the temperature of the combustion chamber, there may be a problem of increasing PN (Particulate Number) and unburned products. To solve this problem, a multi-stage injection technology that injects a small amount of fuel several times is used. This technology is effective in reducing exhaust gas by precisely controlling the amount of fuel injection, but as the number of injections increases, high current flows repeatedly through the GDI injector. Moreover, since the engine room in which the injector is located is a high temperature environment, during continuous multi-stage injection operation, there is a risk that the temperature inside the injector may rise and damage may occur. In order to solve this problem, this paper presents a method of predicting the injector temperature based on the electrical characteristics of the GDI injector, and proposes a plan to prevent deterioration and improve reliability through this. |
| 원문(PDF) | 다운로드 |