기관의 압축 압력 누설이 모터링시 시동 모터 소요 동력에 미치는 영향성 평가

다국어 초록 (Multilingual Abstract)

Compression pressure of individual cylinder and valve timing have big influence on engine performance parameters such as combustion pressure, indicated mean effective pressure (IMEP), emission, vibration, combustion noise and many other combustion parameters. Conventional method to check compression pressure uniformity is done by mechanical pressure gage and this method needs to disassemble related parts such as glow or ignition plugs. Also this conventional method causes inaccuracy of cylinder pressure measurement because of different cranking speed results mainly from battery status and lubrication oil temperature. This study describes and suggests new methodology to measure compression pressure by analysis of start motor current during cranking with high accuracy and without mechanical pressure gage or parts disassemble. Results, it is found that detection of bulky as well as small leaky cylinder is possible by cranking motor current analysis with high sensitivity.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 장치 및 방법
• 3. 실험 결과
• 4. 결론
• References