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Development of custom-made engine control unit for a research engine

机译:研发发动机专用发动机控制单元的开发

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摘要

In this paper, hardware development, software coding using embedded C programming language for an Arduino ATMEGA microcontroller, calibration of electronic control unit (ECU) was tested for a research engine to control the fuel injection flow rate with respect to the suction top dead center (TDC) of the engine. The system could control the fuel flow rate with a variable reluctance sensor, an Arduino microcontroller and a solenoid operated injector in a closed loop domain with a varying pulse width modulator controlled exclusively by the engine operator. The injection flow rates were measured and calibrated with the calculated fuel flow rates for different equivalence ratios (Ø) of the engine. The results showed a very close match between the measured fuel flow rates after calibration and the calculated fuel flow rates at 1500 RPM. The gasoline mass flow rate error was reduced from 40% to 3.25% by compensating the ON/OFF time of the pulse width.
机译:在本文中,针对研究型引擎测试了硬件开发,使用针对Arduino ATMEGA微控制器的嵌入式C编程语言的软件编码,电子控制单元(ECU)的校准,以研究相对于吸气上止点的燃油喷射流量( TDC)。该系统可以通过可变磁阻传感器,Arduino微控制器和螺线管操作的喷射器在闭环域中控制燃油流速,该喷射器具有由发动机操作员独家控制的可变脉宽调制器。针对发动机的不同当量比(Ø),测量并用计算出的燃料流量校准喷射流量。结果表明,校准后测得的燃油流量与1500 RPM下的计算出的燃油流量非常接近。通过补偿脉冲宽度的ON / OFF时间,汽油质量流率误差从40%降低到3.25%。

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