電動(dòng)輪作為獨(dú)立的驅(qū)動(dòng)部件,集電動(dòng)機(jī)、傳動(dòng)機(jī)構(gòu)、制動(dòng)器等部件于輪轂內(nèi),是一種獨(dú)特的驅(qū)動(dòng)單元。
電動(dòng)輪驅(qū)動(dòng)的電動(dòng)車(chē)取消了傳統(tǒng)的機(jī)械差速器,在轉(zhuǎn)向時(shí)需要調(diào)節(jié)兩側(cè)的轉(zhuǎn)速來(lái)實(shí)現(xiàn)差速功能。
傳統(tǒng)車(chē)輛的左、右輪是通過(guò)機(jī)械式轉(zhuǎn)向梯形相連接的。一般良好路面上,左、右轉(zhuǎn)向輪驅(qū)動(dòng)力產(chǎn)生的繞主銷(xiāo)的力矩大小基本相等,方向相反,因此相互抵消。
而電動(dòng)輪驅(qū)動(dòng)汽車(chē)由于各輪轉(zhuǎn)矩獨(dú)立可控,轉(zhuǎn)彎時(shí)左、右轉(zhuǎn)向輪的驅(qū)動(dòng)力可以不相等,驅(qū)動(dòng)力對(duì)主銷(xiāo)軸線的力矩將不再能互相抵消,也就是說(shuō)驅(qū)動(dòng)轉(zhuǎn)向力矩不再為零。由于兩轉(zhuǎn)向輪是通過(guò)轉(zhuǎn)向梯形相連接的,驅(qū)動(dòng)轉(zhuǎn)向力矩將會(huì)驅(qū)動(dòng)兩轉(zhuǎn)向輪轉(zhuǎn)向。
因此,對(duì)電動(dòng)輪驅(qū)動(dòng)的汽車(chē),在保證直線行駛穩(wěn)定的同時(shí),理論上按照一定規(guī)律,實(shí)時(shí)控制左、右轉(zhuǎn)向輪的輸出轉(zhuǎn)矩,將可以利用產(chǎn)生的驅(qū)動(dòng)轉(zhuǎn)向力矩實(shí)現(xiàn)助力轉(zhuǎn)向的作用。
電動(dòng)輪驅(qū)動(dòng)技術(shù)是用四個(gè)或多個(gè)獨(dú)立控制的電動(dòng)輪,來(lái)分別為車(chē)輛的車(chē)輪提供驅(qū)動(dòng)轉(zhuǎn)矩。動(dòng)力源與車(chē)輪之間沒(méi)有機(jī)械傳動(dòng)環(huán)節(jié)。典型的電動(dòng)輪結(jié)構(gòu)如圖7-1所示。
Allen Bradley 20AC030F0AYNANC0
Allen Bradley 20AC030A0AYNANNN
Axiomtek GOT-3150T-N-RC
Allen Bradley 2711-T10C1
Foxboro P0922QS (FBM228)
Proface AGP3600-T1-D24
Novatech Controls Oxygen Transmitter 1732 100-240VAC
Triconex 4200
Triconex 4201
Modicon AS-BADU-211
Allen Bradley 2711P-T12C4D2
Allen Bradley 1752-L24BBB
Allen Bradley 1747-L552
1756-EN2TR | Allen Bradley
Allen Bradley 1785-L80C
Allen Bradley 1336F-BRF20-AA-EN-HAS1-L6
Modicon 140CPU43412A
Siemens 6ES5 923-3UC11
Allen Bradley 2711-K6C5
ENRAF Multiple Thermosensor Thermometer ULYB864N12401170
Honeywell 2104B2111
Allen Bradley 6181P-15TS2KH
Proface GP370-SC41-24VP
Allen Bradley 1794-L34
Allen Bradley 1783-BMS10CGL
Allen Bradley 2711-K10C15
Allen Bradley 2711P-K6C3A
Entek 1440-GWEN2DN
KOENIGS 50016032BBDSAAEX1698
KOENIGS 50016032BBDSAAEX1698
TRIMEC MP015S213.111
TRIMEC MP015S221.211
Allen Bradley 1769-L19ER-BB1B
Allen Bradley 1746-NO8I
Allen Bradley 2711-T10G10
Triconex 8311 ABB 07KT94
ABB 07KT94
Allen Bradley 20BD5P0A3AYNAEC1
Siemens 3RT1075-6LA06
Siemens 6AV7861-2TB00-0AA0
Siemens 6ES7 314-6CF01-0AB0
ABB 07KT94
Allen Bradley 2094-BL02
Allen Bradley 22B-D024N104
Novaris SFM3-63-50-275-M
Allen Bradley 2711-K6C5
GE Fanuc 531X300CCHAFM5
Allen Bradley 1794-L34
Symax / Square D 8030 CRM-510
Proface PS3650A-TY2-S
Allen Bradley 1747-BSN
2711P-B6M20D | Allen Bradley
2711P-B6M20D | Allen Bradley
Moxa PT-7728-F-HV IEC 61850-3