摘要
建立柴油机气缸压力计算模型和平均指示压力计算模型,通过仿真计算出气缸内的实时压力,并与实际测量的气缸压力结果进行对比,验证缸内压力计算的可靠性。通过气缸压力进一步计算出平均指示压力等能反映柴油机工作性能的目标参数,为下一步对柴油机进行闭环控制策略的研究奠定了基础。
The combustion conditions determine the performance and emissions of diesel engines. Cylinder pressure contains the information which can reflect combustion condition. This paper established a cylinder pressure calculation model and a imep calculation model. Calculate cylinder by simulation and compare with the actually measured cylinder pressure to verify the reliability of the simulation. Extracts the parameter like imep which can reflect the performance of the diesel engine by cylinder pressure to provided the basis for the study of close-loop control of the di pressure esel engine.
出处
《内燃机》
2015年第5期1-3,43,共4页
Internal Combustion Engines
基金
国家自然科学基金:面向可控喷油特性的超高压共轨技术理论研究及其实现(51379212)
关键词
共轨柴油机
仿真
气缸压力
平均指示压力
缸内燃烧状况
common-rail diesel engine
simulation
cylinder pressure
IMEP
in-cylinder combustion condition
