Next is software design of the system, including overall system flow chart, throttle position detection map and the step motor commutation and the point of sub-flow chart.
系统的设计除了硬件还需要软件来支撑，软件设计包括系统整体流程图、油门位置检测图和步进电机换相及角度细分流程图。
The test results show that commutation performance of the D. C. motor is better.
试验结果表明这种直流电动机的换向性能是较好的。
The emphasis of this paper is the commutation control of sensorless BLDC motor, which is used to drive Photovoltaic Pumps.
本文所研究的重点是无位置传感器直流无刷电机的换向控制，电机驱动的对象为光伏水泵系统。
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