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本文介绍一种微机测量柴油机动态供油提前角的方法。该法以Z80A CTC为计时器件并由Z80A CPU进行数据处理。在发动机转速,n≤2000r/min时供油提前角的测试误差不超过±0.05℃A同时还可给出发动机转速的参考值。所述方法具有结构简单和接口功能强的优点,可作为微机实时控制射油正时的数据采集接口或单独用于供油提前角的动态监测。通过适当的改进,该法还可应用手动态扭矩的测量。实验表明,采用微电脑对供油提前角实施最佳控制后在部分工况时可较大幅度地降低油耗,NO_x及最高爆发压力也得到降低。对于直列式波许泵只须在高压燃油泵与正时齿轮(车
This article describes a method for measuring diesel engine dynamic fuel advance angle. The law to Z80A CTC timing device by the Z80A CPU data processing. In the engine speed, n ≤ 2000r / min when the fuel supply advance angle test error does not exceed ± 0.05 ℃ A can also give the reference value of the engine speed. The method has the advantages of simple structure and strong interface function, and can be used as a data acquisition interface for real-time control of the injection timing of the microcomputer or separately for dynamic monitoring of the advance angle of the fuel supply. With appropriate improvements, this method can also be applied to hand-torque measurement. Experiments show that using microcomputers to optimize the fuel supply advance angle in some conditions can significantly reduce fuel consumption, NO_x and the maximum burst pressure is also reduced. For in-line Bo Xu pump only in the high-pressure fuel pump and timing gear (car