如今(jin)在電(dian)(dian)(dian)(dian)動車(che)上，隨處可見無(wu)刷(shua)電(dian)(dian)(dian)(dian)機(ji)控(kong)制器，無(wu)刷(shua)電(dian)(dian)(dian)(dian)機(ji)控(kong)制器主(zhu)要由單片機(ji) 主(zhu)控(kong)電(dian)(dian)(dian)(dian)路(lu)、功率管(guan)前級驅動電(dian)(dian)(dian)(dian)路(lu)、轉把(ba) 信號電(dian)(dian)(dian)(dian)路(lu)、欠電(dian)(dian)(dian)(dian)檢(jian)測(ce)電(dian)(dian)(dian)(dian)路(lu)、電(dian)(dian)(dian)(dian)子換向器、霍爾信號檢(jian)測(ce)電(dian)(dian)(dian)(dian)路(lu)、限流/過流檢(jian)測(ce)電(dian)(dian)(dian)(dian)路(lu)、剎(cha)車(che)信號電(dian)(dian)(dian)(dian)路(lu)、限速(su)電(dian)(dian)(dian)(dian)路(lu)、電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)路(lu)等部分(fen)組(zu)成那么當(dang)無(wu)刷(shua)電(dian)(dian)(dian)(dian)機(ji)遇到狀況(kuang)是該怎么維修呢?接(jie)下來(lai)就和無刷電機控制(zhi)板(ban)廠家一起來看(kan)看(kan)吧!

　　無刷電機控制器該怎么維修：

　　一、控制器靜態電流正常應在50MA內

　　電機空載最高轉速時電流一般在1.4A左右，部分電機在1.8A左右。當控制板不工作時，首先應看板上信號燈以秒/次閃爍，如未加轉把信號而信號燈不閃爍時，應檢查：

　　1.5V電壓是(shi)否(fou)正常，不(bu)正常時外(wai)部接插是(shi)否(fou)有短路，板上(shang)有無搭(da)錫(xi)短路等。

　　2.單片機(ji)第2腳電壓是(shi)否(fou)為5V。

　　3.石英晶體(ti)是否(fou)工作。

　　4.信號燈(deng)是否(fou)損(sun)壞。

　　二、控制器電流電壓調整

　　1.電流調(diao)(diao)(diao)整：調(diao)(diao)(diao)節(jie)康銅長度(du)(新程序(xu)可(ke)調(diao)(diao)(diao)整LM358第6腳對地的電阻(zu)(R6)，取(qu)值范圍(wei)取(qu)2K到3.3K內，調(diao)(diao)(diao)到所需運電流，(500W老程序(xu)在(zai)26A到35A有較好(hao)的運行(xing)效(xiao)果，新程序(xu)在(zai)22A到28A有較好(hao)的效(xiao)果。

　　2.電(dian)壓調整(zheng)：欠(qian)壓取樣電(dian)路為48V或(huo)36V電(dian)源對地(di)的兩個分壓電(dian)阻(zu)(zu)組成，通常調整(zheng)電(dian)源連(lian)接(jie)的電(dian)阻(zu)(zu)(Ra)就可以調整(zheng)欠(qian)壓點，因與地(di)連(lian)接(jie)的電(dian)阻(zu)(zu)通常取1.2K，故欠(qian)壓值(zhi)及電(dian)阻(zu)(zu)阻(zu)(zu)值(zhi)可按(an)下面公式計算：Ra=(1.2xv-1.2x3)/3

　　例：使用48V電(dian)瓶電(dian)壓(ya)，欠壓(ya)V的取值為40.5時：

　　Ra=(1.2x40.5-1.2x3)/3-------→Ra=15K

　　注：其中的1.2為與地連接(jie)的電(dian)阻。式(shi)中的3為單片機(ji)部處理欠壓AD值。

　　當欠壓值(zhi)需在40.5V到42V間(jian)調節(jie)時(shi)滿載1.2K電阻上并(bing)82K、39K、36K、33K、30K時(shi)，欠壓分別對(dui)應：41.04V、41.65V、41.75V、41.86V、42V。