为什么小米SU7双电机版,前后电机不一样?有点“玄学”在里面原创2024-01-04 22:48·撸车师兄作者:撸车师兄上周在看完小米SU7的发布会之后,有老哥问我,为什么SU7的Max版本在同一辆车上装了两个电机,一个是同步电机,一个是异步电机?哈哈,这个问题其实非常好,因为我最近也一直在试驾各种电动车做测评,所以对于不同电机的驾驶感受,还是略有体会的,而且不同的电机,在后期维修保养方面还大有不同,我们今天就来简单聊一聊。首先,目前主流的新能源车的电机分为三大类,第一类是永磁同步电机。简单来说就是给电机外圈的定子通电让它产生磁场,然后插在定子中间是一个原本就有磁性的转子,也就是永磁体,它们这两个磁场之间就会产生一个磁动势,同时转动并且速度也是同步的,所以叫永磁同步电机。那么如果中间插的转子它不是永磁体,也可以用缠绕线圈然后给它通电的方式,来让转子产生磁场,那么这两个磁场同样也是同步转动并且速度相同的,所以也是同步电机,算是第二大类。这种类型现在新能源车用的不算多,因为要给高速转动的转子通电,就要用到类似碳刷这样的消耗品,所以这种电机是需要保养的,不过它的优点也很多,我们待会儿再说。另外说一句,宝马的iX用的就是这种电机。第三类电机就是异步电机,或者叫做感应电机。它的定子外圈还是一样,通电之后产生一个旋转磁场,然后插在里面的转子,既不是永磁体,也没有通电后产生磁场,它是一组感应线圈,由于包裹它的定子的磁场在旋转改变,磁力线对于转子线圈的切割,让它线圈感应到磁场,从而产生电动势,从而产生一个磁场,然后两个磁场相斥产生的力带动转子旋转。简单来说,这个过程有一个时间差在里面,是不同步的,所以叫做异步电机或者感应电机。那么3种不同的新能源车电机,放在车上各有什么优劣势呢?其实从刚刚聊的结构上就能看出来,永磁同步电机因为采用的是本身就带有磁性的转子,所以它的磁场稳定,也不需要耗电,而且可以做的更小更轻,所以效率比较高,能够有效延长纯电行驶的里程。但是转子的高温容易导致永磁体“退磁”,所以在散热方面就要下大功夫,否则一次高温,这个电机就报废了,总体来说就是装车成本比较高。那么非永磁体转子的同步电机,就解决了“退磁”这个问题,但是也带来了一个新的问题,给转子通电的部件“碳刷”或者叫“电刷”,它在磨损的过程中,不仅自己会消耗,还会在电机内积累很多粉尘,而且还会有电火花,所以在电机设计和后期保养上,厂家和车主都需要承担更高的成本。宝马用实际行动告诉各位,谁说电动车就不用保养“发动机”了?那么异步电机就比较简单了,因为转子不需要永磁体,也不需要通电,所以它的结构非常简单,还能承受更高的温度,所理论上性能也比较强,生产的成本也很低,后期几乎不需要保养,对于车主来说比较省心。但问题就是它的效率也比较低,因为要让转子转起来,需要好几个步骤的转化,每一步都有消耗,所以装备异步电机的车,往往续航都比较拉胯。那么对于想要购买新能源车的消费者来说,买车的时候参考它的电机类型,意义大不大?这个问题,如果你是一个对于驾驶质感要求比较高的车主来说,意义还是非常大的,因为刚刚讲的3种不同类型的电机,它们完全是不一样的驾驶体验。先说永磁同步电机,因为它的转子本身就是永磁体,那么这个磁场就是提前存在的,所以一旦给定子通电,它的反应速度是最快的,瞬间就能爆发出最大扭矩,那对于日常驾驶来说肯定是不行的,所以要控制它,就需要对输入定子的电流进行很精确的控制,而且要把你脚下的电门踏板的深度和电流大小的配合比例,做很细节的调试。车厂稍微调的不好或者不够仔细,反馈的驾驶者的体感上,你有时候就会感觉这个车,轻轻踩一下,车没怎么动,但是稍微深一点点,车突然往外一窜,我上次开一台某品牌的混动车型,它的新款就是从之前的异步电机换成同步电机了,就有这个问题,搞得我差点就在停车场追尾别人,吓的我一身冷汗。而异步电机则恰恰相反,因为它从定子通电,到转子开始转,是需要一个过程的,有延迟,而且过程中有一定的消耗,所以它的电流大小控制和电门踏板深度之间,调试起来会相对简单一点,开起来也更加偏向于涡轮车的感觉,这对于开惯了汽油车的我来说,适应起来更轻松。而装备非永磁体转子同步电机的车,例如宝马的iX,这个我还没开过,但是我个人分析,因为它可以同时控制转子和定子的输入电流,所以它应该能够做到更加精细的输出功率控制,和电门踏板深度之间的平衡,理论上来说,你需要它温柔的时候它就能温柔,需要它骚的时候它就能骚,可甜可盐了属于是。所以,回到我们视频开头的问题,小米SU7Max版本,之所以要把交流异步电机放在前轴,永磁同步电机放在后轴,原因就比较好理解了。就像刚刚上面说到的,永磁同步电机的动力响应是非常快的,而车辆起步的瞬间,重心会压向后轴,所以就能最大限度的发挥永磁同步电机,动力响应快的性能,把车给弹出去。而在车辆进入到动态后,前轴的异步电机因为动力响应,没有后轴的同步电机那么快,所以正好可以在前轴逐渐恢复下压力的过程中开始发力,虽然弹射起步是在一瞬间,但是在这个瞬间,这两个电机其实有点接力赛跑的意思,可以说是把不同电机的特性充分结合到了性能这件事儿上。我想这就是小米SU7Max能够跑到2.78秒破百的众多原因之一,这里是“好玩 涨姿势”的DIY汽车养护节目《撸车师兄》,我们下期再见~
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2023款锐·T动 260TURBO 智享版这款车型价格相对于入门舒适版本车型裸车指导价格增加了1.7万元达到了19.68万元相对于舒适版增加了前方碰撞预警自适应巡航车道保持辅助等主动安全功能智享版还新增了后视镜加热后视镜折叠功能同时配备了 HUD 抬头显示舒适性配置增加了主副驾驶电动调节座椅如果在意安全性以及舒适性配置这个版本也值得入手
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dangyishengqingtazhaixiatoujinshi,yanqiandejingxiangrangzaichangsuoyourendujingyabuyi。taweibalujunzhuxiaomifan。turan,yiweizhanshifangxiawanshuo:daniang,buduia!shoufa2023-12-12 11:52·shizuolangtaweizhujiadebalujunzhuxiaomifanchi。kanzhuozhanshimenlangtuhuyandeyangzi,tadelianshangluchuliaoxiaorong,danshizhexiaorongbeihouqueyincangzhuoyisinanyichajuedekuse。turan,yiweizhanshifangxiashouzhongdewankuaishuo:“daniang,buduia。”yizhegeweibalujunzhuxiaomifandedaniangjiaofanglanting,xiaoshihougenzhuoyeyeyangfeng,zounanchuangbeimaifengmi,suiranmeinianguoshu,danshinaogualinghuo,koucaihao,jixinghao,zaigenyeyezounanchuangbeiderizili,gengshizengchangliaohenduojianshi。20suideshihoutajiadaoliaodongpanshigoucun,zhangfuzhouzhencangshigedianxingdeshandongdahan,yigebenbenfenfendezhuangjiaren,pingrilikaozuoxiekanghuodetilihuoyangjia。1925nian,fengxijunfazhangzongchangzhuzhengshandong,hengzhengbaolian,baixingwuyiweisheng,wunaizhixia,zhouzhencangdushenyirenquchuangguandong,wamei、kanshuweisheng。1931nian,ribenqinzhanliaodongbeisansheng,zhouzhencangyouwunaidefanhuijiaxiang,zailushang,jieshiliaozhonggongdixiadangyuanguoyunzuo,zaiguoyunzuodeyingxiangxia,zhouzhencangchengweiliaogongchandangdejiaotongyuan。1933nian,guoyunzuolingdaoliao“cangshanbaodong”,zhihou,zhouzhencangdejiabianchengliaowodangdemimilianluodian。pingrili,liangkouzichuliaozhongdi,huanhuizuoxiexiaomaimai,zijizhongcai,zuoxie、zuodoufu、huoshaonadaojishangqumai。zhengshijiezhuozheyangdejihui,weizuzhichuandiqingbao。nashihoudechuandiqingbaodushidanxianlianxi,zuzhixianbaxieyouqingbaodexiaozhitiaojiaogeizhouzhencang,ranhouzhouzhencangjiezhuoquganjidejihuiquchuandiqingbao。yibanmaidongxiderenshanglaiduhuiwenjiage,erqingbaorenyuanzehuiyi“nixiayicifengjihuanlaibu?”zuoweianhao,yidanduishanganhao,zhouzhencangbianjiangqingbaojiadaocaili、xieli,rangduifangqunaguoqukankan,chenjijiangqingbaonazou。youyici,liangkouzizhaoliqujishangmaidongxi,huilaidelushangyudaoyigexiaoqizuo,fanglantingkanzhuotakelian,jiugeiliaotayigehuoshao。meiduojiu,yitian,tiangangmengmengliang,fanglantingzhengzaijialitanjianbingzhunbeinadaojishangqumai,turancongqiangtoufanjinlaiyigeren,fanglantingyikanzhengshiqianjitianjiujidenageqizuo,waibianbuyuanchudizhuzhengdaizhuoyiqunrenhanzhuazei,fanglantingyikanjiumingbaizenmehuishiliao。ganmangjiaoqizuoduodaochaihuoli,ranhoushangmiangaishangcaoxi。jinjiezhuo,dizhujiudairenchuangliaojinlai,wenkanmeikandaoyigexiaoqizuojinlai,fanglantingzhiliaozhidongqiang,shuo,congdongqiangfanguoqupaoliao,jiuzheyang,jiuliaoxiaoqizuoyiming,dizhuzouyuanhou,fanglantingnaliaoxiegangtanhaodejianbinggeixiaoqizuo,rangtaganjintaomingqu。xiaoqizuoguizaidishanggeifanglantingkeliaosangetou,shuo:“wojiaoshibangjie,yihouninjiushiwoqinniang。”shuowan,zhuanshenzouliao。er1937nianlugouqiaoshibian,kangrizhanzhengquanmianbaofa,zhouzhencang、fanglantingliangkouzigengshijianbingjianjijitourudaokangrijiuwanghuodongzhong。1938nian4yue,rijunxianhouzhanlingliaolinyi、lanlingdengdi。6yuezhongguogongchandangzaibaoduzuoshanqujianliliaokangriminzhugenjudi,bingchengliliaolinzuofeizuosixianbianquxianweihetongyizhanxianxingzhide“bianlianxianbanshichu”lunanteweizaidalucunkaihuishiliuyingfanglantingbujinjijicanjialiaominyunbudegongzuo,huanchengweiliaodangshicujinhuidezhuyaofuzeren,bujiuzhihougengshiguangrongdejiaruliaozhongguogongchandang。1939nian,zhengweiluoronghuan、shichangchenguanglvlingbalujun115shijibufenzhulibuduitingjinshandongbaoduzuoshanqu,jinzhudalucun,fazhanyibaoduzuoweizhongxindelunankangrigeminggenjudi。1939nianqiutian,bianlianxianbanshichuyouyifenzhongyaodeqingbaoxuyaosongdaozhuzhazaidalucunde115shizhengweiluoronghuanshouzhong。zuzhijuedingjiangzhegerenwujiaogeizhouzhencang,danshilaidaozhouzhencangjiazhongcaifaxian,cishizhouzhencangyinweinuejiwufaxiachuangliao。zheshi,fanglantingzhudongtichuzijidaitizhangfuquwanchengchuandiqingbaoderenwu。zhihoutajiangqingbaocangzaifazuoli,mabutingtiqianwangdalucun,fanshanyueling,jingguocengcengguanka,zuizhongshunlijiangqingbaoanquansongdadaoluoronghuanshouzhong。diyiciduliwanchengchuandiqingbaorenwudefanglantingxinggaocailiedeganhuijia,shuizhi,jiuzaifanglantingkuaiyaozoudaojiamenkoudeshihou,turanfaxianyihuorijunzhengyazhuozhangfuzhouzhencangcongjialichulai,fanglantingjianzhuang,ganjinguaidaopangbiandexiaohutongli。yinweipantudechumai,zuoweijiaotongyuandezhouzhencangbeidirenzhuabo。direnshiyongliaogezhongcankuxingfa,bipozhouzhencangshuochuqingbaodexialuo,danshizhouzhencangshizhongshoukouruping。zuizhongnaoxiuchengnuderikoujiangzhouzhencangbangdaozaoshushang,yongcidaocanrendeshahailiao,zhihouhuansangxinbingkuangdejiangzhouzhencangdetougexialai,guadaoshushangshizhong。fanglantingqiangrenzhuobeitong,yanmaihaozhangfudeshitihou,daizhuolianggeweichengniandehaizi,yiranerrandelikaijiaxiang,kaishijietizhangfudegongzuo。sanyitian,fanglantingjialaiyiliaoyigegaogaozhuangzhuangdexiaohuozi,shoulinazhuoyipibu,liangtiaoyu,huanyouyigedianxinhezi。yijinmen,xiaohuozikanjianfanglantingjiuyixiaguizailiaodishang,dashenghanzhuo:“niang,erzilaikanninliao”haoyihui,fanglantingcairenchulai,zhexiaohuoziyuanlaishi5nianqianzijijiuguodexiaoqizuo,shibangjie。yuanlai,cishishibangjieyijinglaqilailiaoyizhiliangsanbairendezhuanmenqiangdizhudeduiwu,zhanshanweiwang,chengliaotufei。1939niandong,genjukangriminzutongyizhanxianjingshen,xianweijuedingzhengbianshibangjiededuiwu,zhuangdakangrililiang,jingguoduociyanjiu,juedingpaifanglantingqianququanshuo。fanglantingjiedaorenwuhou,likeshoushihao,shangshanquzhaoshibangjie。gangdaoshibangjiedezhudimenkou,shouweijiunaqiangzhizhuofanglantingwen:“zhanzhu!nilaiganshimede?”fanglantingjianzhuang,chongzhuoyuanlidashengdeshuo:“woshilaizhaowoerzishibangjiede”,guyirangwulideshibangjietingjian。guoran,shibangjietingdaohou,ganmangpaochulai,bafanglantingyingdaowuli,bingfenfushouxia,ganjinzhunbeifancai。fanglantingbawulideqitarenduzhizou,zhiliuxiashibangjieyigeren,ranhouyuzhongxinchangdeshuo:“bangjie,weiniangzhecilaishijiunidea,nibenjiushiqiongrenjiadehaizi,nandaoyaodangyibeizitufeima?zhebushichangjiuzhijia!xianzaixiaoguizihuohaizanmen,zhiyougenzhuogongchandang、balujunyiqidaguizicaishichulua。”shibangjieshigeyouqingyouyideren,dangtufeibenlaiyeshipoyuwunai,xianzaitingfanglantingzheyangshuo,dangjibiaoshiyuanyirenzhenkaolv。linzou,fanglantingduishibangjieshuo:“nizhaojiyixianidedixiongmen,yaoshitingwodehua,yuanyicanjiabalujun,jiulaidongpanshigouzhaowo。santianhou,ruguomeilai,nanijiushibutingniangdehua。weiniangyemeibanfabangniliao。”huidaojiahou,fanglantinglikezhaodaodongpanshigoucundecunchang,gaosuta:“zhejitianbuguanshishuilaizhaowo,gaosudajiadubuyaopa。”jieguo,meixiangdao,diertian,tianhuanmeiliang,shibangjiedudaizhuoshouxiajibaihaodixiongnazhuowuqilaidaoliaodongpanshigoucun。fanglantingzhidaohou,ganjinzuzhicunliren,zhunbeiliaofancai,chibaohezuhou,daizhuoshibangjieyijishouxiadedixiong,benfu115shizhudi,jieshoubalujundegaibian。1940nian,shibangjiezaigongdazaozhuangdezhandouzhong,shoushangbeifu,danshishisibujiang,zuihoubeiribenguizihuomailiao。si1940nian,kangrizhanzhengjinruzuijiankudejieduan。youyudirendefengkuangsaodang,sichushaoshaqianglue,laobaixingdeshenghuojiduankunnan,youganshangliaozaihuang,zhuangjiakeliwushou,henduorenjiaduyijingduanliaoliang,zhinengkaosichuwayecaichongji,balujunyebuliwai。cishi,fanglantingjializhuzhuoyigebandebalujunzhanshifangdaniangkanzhuonianqingdezhanshimen,meicidazhanghuilaihou,zhinengchikangyancai,mianqiangchongji,zhanshimengegeedemianhuangjishoude,shikanzaiyanli,jizaixinli。danshikanzhuokongkongruyedelianggang,queyefanliaonan。“niang,woeliao。”,sansuidexiaonverxiaolanlazhuomuqindeshouyeedebuzhudeliuyanlei。fanglantinglazhuonvershuo:“zou,zanmenqushanshanggeibalujungegemenwadianyecaiqu。”fangdaoyiwang,huannengkaoqushanshangwayecaiweichi,danshirujin,lianniandejihuang,shanshanglianyecaiyedubeiwameiliao。danshifanglantinghuanshilingzhuoxiaolanchuliaojiamen……yizhidaolinjinbangwan,fanglantingcaichanchanweiweidehuidaojiali,jianshangkangzhuoyidai20jindeguzi。yigezhanshikandaofangdaniangkangzhuodeguzi,ganjinbangmangjieguolai,wen:“daniang,zheshinalaideguzia”fanglantingruowuqishideshuo:“daniangchuquzhaorenjiede,dengmingnianxialaiguzizaihuangeirenjia”shuowanjiuganjinzhaohuzhanshimen,zhaguzi。wanshang,jigezhanshishoulidupengzhuoyiwanxiangpenpendexiaomifan。zhengchizhuo,turanlaochengdebanchang,faxianbuduijin,fangxiashoulidewankuaishuo:“daniang,buduia,zenmemeikandaoxiaolanchulaichia,xiaolanne?”fangdaniangtingdaohou,zuichunchandouzhuo,zhuanguotoushuo:“biewenliao,gankuaichiba”zheshi,zhanshimenbozhuodaoliaofangdaniangnayanshenzhongbuyichajuedebeishang,dufenfenliaoxialiaoshoulidewankuaiwendao:“shia,daniang,xiaolanne,xiaolanbuchi,womenzenmerenxinchia。”zuizhongzaizhanshimenzaisanzhuiwenxia,fangdaniangcaishuochuliaoshiqing。yuanlai,tadaizhuoxiaolanqushanshangwayecai,keshiguangtutudeshanshangzaojiumeiyoukewadeyecailiao,yilianzouliaoshijililu,yemeiwadaoyecai。kanzhuokuqidenver,xiangxiangjitianmeichifandezhanshimen,fangdanianghenxinbaxiaolanmaigeiyigedahurenjia,huanlailiao20jindeguzi。dezhishiqinghou,zhanshimenleiruyuxia,quanduguizaifangdaniangmianqian,qishenghan“niang!zheyangbuxinga!”。banchangganjinxiangbuduishouchanghuibao。fanglantingshouchangtingwanhuibao,likedaitoubashenshangdelingyongqiannachulai,dajiadongpinxicou,ranhouzuzhirenquzhoubiancunzidatingshuijiatianliaoyige2、3suidexiaoguniang,zuihoujiangxiaolanshuliaohuilai。kanzhuoshuhuilaidexiaolan,shouchangjidongdeshuo:“guoqudushuoaibingruzi,kefangdaniangshiaibingshengruzi”laobaixingxinliduyouyigancheng,shuizhenxinweilaobaixingbanshi,laobaixingziranjiuzhichishui。zhengshiyinweirenminjunduiairenmin,suoyicaiyouliaorenminjunduirenminai。yezhengshiyinweidedaoliaoguangdarenminqunzhongyonghuhezhichi,caizhuzaoliaoyizhiganzhan、nengzhan、shanzhanderenminjundui!fanglantingyuxiaonverzhouqinglan
有(驰辞耻)一(驰颈)次(颁颈),我(奥辞)去(蚕耻)看(碍补苍)我(奥辞)妈(惭补),发(贵补)现(齿颈补苍)她(罢补)把(叠补)家(闯颈补)里(尝颈)所(厂耻辞)有(驰辞耻)和(贬别)我(奥辞)爸(叠补)有(驰辞耻)关(骋耻补苍)的(顿别)东(顿辞苍驳)西(齿颈)都(顿耻)收(厂丑辞耻)起(蚕颈)来(尝补颈)了(尝颈补辞)。我(奥辞)问(奥别苍)她(罢补)为(奥别颈)什(厂丑颈)么(惭别)不(叠耻)扔(搁别苍驳)掉(顿颈补辞),她(罢补)说(厂丑耻辞):"扔(搁别苍驳)了(尝颈补辞)多(顿耻辞)可(碍别)惜(齿颈)啊(础),这(窜丑别)么(惭别)多(顿耻辞)年(狈颈补苍)的(顿别)回(贬耻颈)忆(驰颈)呢(狈别)。"
diershibatiao duibenguidingdiershiwutiao、diershiliutiao、diershiqitiaoguidingdefakuan,fanlongduanzhifajigouquedingjutifakuanshueshi,yingdangkaolvweifaxingweidexingzhi、chengdu、chixushijianhexiaochuweifaxingweihouguodeqingkuangdengyinsu。liulinkanliaogonggongyiyan,sihuchajuedaoliaoshime,danmeiyoushuohua。yijiarenchenmodichiwanwanfan,gezihuifang,liuxiawangxuyigerenzuozaiketing,xianrushensi。
针(窜丑别苍)对(顿耻颈)业(驰别)绩(闯颈)亏(碍耻颈)损(厂耻苍),北(叠别颈)汽(蚕颈)蓝(尝补苍)谷(骋耻)方(贵补苍驳)面(惭颈补苍)表(叠颈补辞)示(厂丑颈),一(驰颈)方(贵补苍驳)面(惭颈补苍)是(厂丑颈)由(驰辞耻)于(驰耻)新(齿颈苍)能(狈别苍驳)源(驰耻补苍)汽(蚕颈)车(颁丑别)市(厂丑颈)场(颁丑补苍驳)竞(闯颈苍驳)争(窜丑别苍驳)愈(驰耻)发(贵补)激(闯颈)烈(尝颈别),价(闯颈补)格(骋别)战(窜丑补苍)日(搁颈)趋(蚕耻)白(叠补颈)热(搁别)化(贬耻补),挤(闯颈)压(驰补)利(尝颈)润(搁耻苍)空(碍辞苍驳)间(闯颈补苍);另(尝颈苍驳)一(驰颈)方(贵补苍驳)面(惭颈补苍),公(骋辞苍驳)司(厂颈)为(奥别颈)持(颁丑颈)续(齿耻)推(罢耻颈)进(闯颈苍)产(颁丑补苍)品(笔颈苍)向(齿颈补苍驳)高(骋补辞)端(顿耻补苍)化(贬耻补)发(贵补)展(窜丑补苍),在(窜补颈)技(闯颈)术(厂丑耻)研(驰补苍)发(贵补)、品(笔颈苍)牌(笔补颈)渠(蚕耻)道(顿补辞)建(闯颈补苍)设(厂丑别)、品(笔颈苍)牌(笔补颈)形(齿颈苍驳)象(齿颈补苍驳)锐(搁耻颈)化(贬耻补)、运(驰耻苍)营(驰颈苍驳)效(齿颈补辞)率(尝惫)提(罢颈)升(厂丑别苍驳)上(厂丑补苍驳)持(颁丑颈)续(齿耻)投(罢辞耻)入(搁耻),因(驰颈苍)此(颁颈)对(顿耻颈)公(骋辞苍驳)司(厂颈)短(顿耻补苍)期(蚕颈)业(驰别)绩(闯颈)产(颁丑补苍)生(厂丑别苍驳)一(驰颈)定(顿颈苍驳)影(驰颈苍驳)响(齿颈补苍驳)。
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陆挺表示我们认为不应过分夸大超额储蓄和被压抑的消费额特别是考虑到家庭资产负债表的转弱他称购物中心人流量、新房购买量和汽车销售数据表明大额消费可能仍然低迷以农历为基准1月24日30个城市样本的新屋销售量7日均值增幅从一周前的-23.1%降至-43.9%
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