[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f5cMd0dvXnuoJg3zg5bMQLE3wKOkI7ppqEzuWTzRb5R0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-06-06 12:26:05",149144331,[8,9,10,11],"端盖","转子","定子","机座",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},151,"f374ffe1a0f56d3ffa37d16479a64b52","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F56a1b6515ba77b15b45a12eb8e346ea3.jpg","电动汽车动力系统检修","work_35537997","单选题-黄2024.6","是用来产生磁场并对电动机进行机械固定",[21,32,41,50,59,68,77,80,88,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],149144300,[25,26,27,28],"由水泵带动冷却液+水箱循环","由水泵带动冷却液+水箱循环外加高温时电子扇工作","低温时采用风冷加高温时电子扇工作强制","采用自然冷却","动力电机及电机控制器( )散热的","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],149144304,[36,37,38,39],"直流电机","交流感应电机","永磁同步电机","开关磁阻电机","新能源汽车驱动电机主要由直流电机、交流感应电机、永磁同步电机、开关磁阻电机几种类型,目前( )在我们国家新能源汽车上的应用较为广泛",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],149144308,[45,46,47,48],"转速","转向","转速和转向","转矩","电机控制器是整个动力系统的控制中心,控制器接收驱动电机转速等信号反馈到仪表,当发生制动或者加速行为时,控制器控制驱动电机的( ),从而实现车辆加减速和前进倒退的目的",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],149144311,[54,55,56,57],"灰铸铁","ABS 工程塑料","铝合金","球墨铸铁","新能源汽车所采用的驱动电机最高转速可以达到 8000~12000r\u002Fmin,通过采用( )作为电机外壳的途径可以降低驱动电机整体质量,在一定程度上能够延长车辆续航里程",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],149144316,[63,64,65,66],"振动大、冲击大、高电压","振动大、灰尘多、温湿度变化大","高电流、冲击大、灰尘多","振动大、灰尘多","由于车用电机处于( )的恶劣条件下运行,要求车用电机必须要适应环境,保证车辆稳定、安全运行",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],149144323,[72,73,74,75],"导磁","通入三相交流电产生旋转磁场","通入三相交流电产生电磁力","通过电磁感应产生感应电动势和电流","永磁同步电机的定子绕组的作用是( )",{"answer":78,"createTime":5,"id":6,"options":79,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":81,"createTime":82,"id":83,"options":84,"question":87,"source":30,"type":31},[],"2024-06-06 12:26:06",149144336,[85,9,10,86],"电枢铁芯","换向器","用来产生电磁场,以带动转轴旋转",{"answer":89,"createTime":82,"id":90,"options":91,"question":96,"source":30,"type":31},[],149144340,[92,93,94,95],"电压","电流","相序","频率","改变逆变器输出的三相交流电的( )就可以改变永磁同步电动机的旋转方向",{"answer":98,"createTime":82,"id":99,"options":100,"question":105,"source":30,"type":31},[],149144344,[101,102,103,104],"电流方向同步","电压方向同步","定子磁场转速与转子转速是否同步","定子磁场方向与转子磁场方向同步","电机的同步与异步,指的是( )"]