高压共轨柴油机曲轴信号倍频研究

摘要

To obtain high precision diesel angle information, improve the precision of injection timing control, the multiple frequency of crankshaft as well as error analysis was used by making use of hardware resources on TC1796 Micro-processor . The study was based on the TC1796 development board by setting relevant hardware and designing software, and then achieved a higher precision frequency multiplying signal. The precision of injection timing control can be greatly improved by using frequency multiplying in a 4 cylinder 4 strokes High Pressure Common Rail Diesel Engine-YN30CR. This test proves that the algorithm is reliable and stabilized.%为了获取发动机高精度角度信息,实现更为精确的喷油正时控制,利用微处理器TIC1796丰富的硬件资源,倍频曲轴方波信号并进行倍频后信号的误差分析.基于TC1796开发板,经过相应的硬件配置和软件设计,获得了高精度的曲轴倍频信号.利用此信号,在4缸4冲程高压共轨柴油机YN30CR上组织喷油正时控制,结果控制精度大大提高,验证了此倍频方法的可靠性和稳定性.