基于经济线的柴油机节能控制方法研究

为解决工程车辆用柴油机在动力匹配控制中最佳经济线的优化问题,将Matlab的矩阵运算、三维曲线绘制和等值线等方法应用到曲线模拟中,通过曲线回归法优化了工程车辆用柴油机万有特性曲线模拟仿真求取方法,具有原理直观、物理意义明确、工作量小、模拟精度高等优点。通过基于经济工作线节能控制法,开展了小型履带搬运车用某柴油机的万有特性曲线分析,建立了电子控制和柴油机燃油曲线之间的关系,提出了在实际操作中的节能应用中基于最佳经济线的控制方法,实现了柴油机在各种工况下的电子节能控制。在小型履带试验车上对燃油消耗情况进行了评价,进行了油耗跑车试验。研究结果表明,该方法通过闭环反馈控制自动匹配柴油机油门,提高了燃油效率,是实时调节柴油机工作在经济区域的有效途径。

Power saving control theory of diesel engine based on economical curve

In order to find the most economical curve of the diesel engine in the power match control of construction vehicle, the Matlab＇s ma- trix operation,3-D graphics drawing and equivalent method was investigated. After the analysis of the universal characteristic curve, the rela- tionship of electric-control and engine was established. A method was presented to realize energy saving control based on the most economical curve for the real operation. The value of fuel consumption were evaluated on the vehicle, the effect of control were tested. The experimental re- suits show that it is an effective way to improve the vehicle＇s matching identity and ensure its working point in the economic region.