차량 틸팅 시험을 이용한 엔진 오일 레벨 평가에 대한 연구

The purpose of present study is to investigate the influence of vehicle acceleration such as cornering, braking and acceleration on the engine oil starvation phenomenon of the internal combustion engines. In the starvation condition, oil pressure is not maintained in an engine due to the air entering at the suction pipe inlet. Computer aided analysis is useful to simulate oil movement under the worst case and design can be easily changed based on analysis result, but the analysis can’t consider oil quantity under the real vehicle running condition. Engine bench tilting test is more accurate to evaluate the oil starvation, but it is hard to simulate maximum transient tilt angle. It is important that all tilt stands used to test the engine lubrication system should be capable of achieving tilt speed as close to the vehicle condition as possible since the speed may have an impact on the oil pressure. In the present study, vehicle tilting test is introduced for most effective evaluation on the engine oil starvation phenomenon. Test procedure and result evaluation criteria of the vehicle tilting test are also presented.