磁電機信令 的英文怎麼說
中文拼音 [cídiànjīxìnlìng]
磁電機信令
英文
magneto signaling-
Magnetic marker buried in the road can be used as navigation signals, this signals are collected by build - in - vehicle sensor and are sent to the build - in - vehicle computer, the computer processed and sent instruction or command, automatic running of driverless vehicles can be realized by the steering wheel servo mechanism which connects with step motor
通過埋設在道路上的磁軌釘作為車輛控制的誘導信號，由車載傳感器進行信號的採集，把採集到的數據信息傳送到車載計算機中，通過車載計算機的處理，發出執行指令，利用步進電機連接的方向盤伺服機構以實現車輛在無人駕駛的情況下保持車道的正常運行。In the proposed technique the bemf waveform of bldcm need to be measured in advance at first, through computer simulation and frame transformation, the optimum q - axis current command is achieved. in order to minimize the torque ripple, the d and 0 - axis current command should be zero. furthermore, through reference frame transformation from dqo - axis to abc - axis, we can get the optimum current command in static abc reference frame
在這種控制方法中首先測量出電機的實際反電動勢波形，然後通過計算機擬合和坐標變換，求得產生恆定電磁轉矩所需的q軸電流，令i _ d ~ * = i _ 0 ~ * = 0 ，通過坐標變換，得到三相靜止坐標系a - b - c下的參考電流i _ a ~ * ， i _ b ~ * ， i _ c ~ * ，利用電流滯環控制來產生pwm信號，由於這種控制方法中電流不會突變，從而可以較好的抑制轉矩脈動。
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