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(干货)新能源汽车故障紧急处理方案原创2021-09-12 17:42·新能源汽车维修技术一、整车控制器常见故障及处理序号故障现象故障原因处理方法1整车控制器不能正常工作1、整车控制器与外部接线不正确2、整车控制器与外部接线接触不良3直流接触器没有吸合4、整车控制器的高压直流电源没供给1、重新把接插件插拔一遍,测量高压、低压逻辑是否正确,确保正确。2、检查,紧固高低压插件3、检查直流接触器有无低压输入,如无,及时解决此故障。4、查高压直流输入端的线路及插件2绝缘电阻低1、底部的绝缘子粘满粉尘、油垢2、整车控制器壳体与车架接触3、输入输出高压导线绝缘层老化破裂1、对绝缘子进行除垢、除油,并并经干燥、浸漆处理后,再次安装;或直接更换新绝缘子。2、查处接触点,进行分离绝缘处理。3、更换新的高压导线。3强制散热风扇不工作1、该风扇损害2、无供电电源1、更换新风扇2、查供电线路,提供电源二、驱动电机常见故障及处理序号故障现象故障原因处理方法1电机在空载时不能启动1.电源未接通2.逆变器控制原因3.定子绕组故障(断路,短路,接地,连接错误等)4.电源电压太低1.检查开关,接触器触点及电机引出线头,查出后修复2.检查逆变器3.检查定子绕组,找出故障,并修复4.检查电源电压和每个连接处2电机通电后不启动,嗡嗡响1.定、转子绕组断路 2.绕组引出线首末端接错或绕组内部接反3.电机负载过大或被卡住4.电源未能全部接通1.查明断路点进行修复2.定子绕组中通入直流,检查绕组极性(用指南针);判定绕组首末端是否正确3.检查设备,排除故障4.紧固接线柱松动的螺丝,用万用表检查电源线某相断线或假接故障,然后修复3定子过热1.输电线一相断线或定子绕组一相断路,造成走单相2.过载3.绕组匝数不对4.通风不良1.按第1条(1),(3)检查2.减少负载或增加容量3.检查绕组电阻4.检查风机是否正常4绝缘电阻低1.绕组受潮或被水淋湿2.绕组绝缘粘满粉尘,油垢3.引出线绝缘老化破裂4.绕组绝缘老化1.进行加热烘干处理2.清洗绕组油垢,并经干燥,浸漆处理3.重包引线绝缘4.经鉴定可以继续使用时,可经清洗干净,重新涂漆处理;如果绝缘老化,不能安全运行,则需更换绝缘5电机振动1.轴承磨损,间隙不合格2.气隙不均匀3.转子不衡4.笼型转子导条断条5.定子绕组故障(断路,短路,接地,连接错误等)6.转轴弯曲7.铁芯变形或松动1.检查轴承间隙,应符合设计要求2.调整间隙3.重新校动平衡4.更换转子5.查出绕组故障点并进行处理6.校直转轴7.校正铁芯,或重新叠装铁芯6电机空载运行时空载电流不平衡,且相差很大1.绕组首端错2.电源电压不平衡3.绕组有故障(匝间短路,某线圈组接反等)1.查明首末改正后再启动电机试验2.测量电源电压,找出原因消除 3.拆开电机检查绕组极性和故障,并改正和消除故障7电机运行时有杂音,不正常1.轴承磨损,有故障2.定,转子铁芯松动3.电压不平衡4.绕组有故障(如短路,接错等)5.轴承缺少润滑脂6.气隙不均匀,定子,转子相擦1.检查并更换轴承2.检查振动原因,重新压装铁芯3.测量电源电压,检查电压不平衡原因并处理4.检查绕组故障并处理5.清洗轴承,补充规定量的润滑脂6.调整气隙,提高装配质量8轴承发热超过规定1.润滑脂过多或过少2.脂质不好,含有杂质3.轴承与轴配合过松或过紧4.轴承与端盖配合过松或过紧5.油封间隙配合太紧6.轴承内盖偏心,与轴相擦7.电机两端盖或轴承盖未装平8.轴承有故障,磨损,有杂物等9.轴承间隙过大或过小1.拆开轴承盖,检查油量,按规定增减润滑脂量2.检查油脂内有无杂质,更换洁净润滑脂3.采取措施,使轴承与轴配合符合要求4.采取措施,使轴承与端盖配合符合要求5.更换或修理油封6.修理轴承内盖,使其与轴的间隙合适7.按正确工艺将端盖或轴承盖装入止口内,然后均匀紧固螺钉8.更换损坏的轴承,对含有杂质的轴承要彻底清洗,换油9.更换新轴承三、电机驱动控制器常见故障及处理序号故障现象故障原因处理方法1控制器不能正常工作1.控制器与外部接线不正确2.控制器与外部接线接触不良3.控制器内部故障4.控制器的预充电没供给 5.控制器的低压输出电源没有 6.控制器的高压直流电源没供给1.重新把接插件插拔一遍,测量高压、低压逻辑是否正确,确保正确。2.检查,紧固高低压插件3.复位,若未解决更换新电机控制器 4.查预充电线路及插件5.先检查有没有低压输入,如果没有低压输入的话供上电源后就有低压输出了(必须保证此时预充电已供给);如果有低压输入电源的话没低压输出(同时预充电已供给),更换新电机控制器6.查高压直流输入端的线路及插件2绝缘电阻低1.底部的绝缘子粘满粉尘、油垢2.电机控制器壳体与车架接触3.输入输出高压导线绝缘层老化破裂1.对绝缘子进行除垢、除油,并并经干燥、浸漆处理后,再次安装;或直接更换新绝缘2.查处接触点,进行分离绝缘处理。3.更换新的高压导线。3电机控制器振动大1.减震块破损或老化2.风扇固定罩或控制器罩有固定螺栓松动或脱落。1.更换新减震块2.对松动螺栓进行紧固,脱落的螺栓重新紧固好四、磷酸铁锂动力电池常见故障及处理序号故障类型故障诊断故障排除1个别单体电池与其他单体电池相比,自放电率较大组合仪表将显示故障报警,且仪表显示最高和最低单体电池电压(1)更换单体电池;(2)对单体电池进行补充电2蓄电池组系统中单体电池之间的差异性增大组合仪表将显示故障报警(1)对蓄电池组系统进行定期维护,重新分容配组3电源模块内部温度差异大组合仪表将显示故障报警,且仪表显示最高温度和最低温度(1)优化热管理系统,使温度场分布均匀4电源模块之间温度差异大组合仪表将显示故障报警,且仪表显示最高温度和最低温度(1)电源模块避免靠近热源,如电机、发动机等热源5单体电池出现过充现象组合仪表将显示故障报警(1)更换单体电池6单体电池出现过放现象组合仪表将显示故障报警(1)更换单体电池7压接单体电池的铜片出现松动现象组合仪表将显示故障报警(1)紧固固定压接铜片的螺栓8某两块邻近单体电池一块偏高、一块偏低组合仪表将显示故障报警,紧固采样线铜鼻子的螺栓松动(1)紧固固定采样线铜鼻子的螺栓9BMS系统SOC不稳定,SOC不变化组合仪表将显示故障报警,电流传感器损坏,连接电流传感器的接插件松动(1)更换电流传感器;(2)重新连接已松动的接插件10BMS系统通讯故障组合仪表将显示故障报警(1)更换BMS系统BMU;(1)更换BMS系统LECU;11BMS系统静态数据正常,但车辆启动运行后,数据异常组合仪表将显示故障报警,BMS系统受干扰严重(1)重新布置车辆的动力线和信号线免责声明:此讯息系转载自互联网其它媒体,我们登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述,文中陈述文字和内容未经证实,对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺,文章内容仅供参考!如果您不希望我们转载您的作品,请和我们联系处理,谢谢!Usha Vance earned her undergraduate and law degrees from Yale. After college, which included a masters of philosophy from the University of Cambridge after Yale, she clerked for two Supreme Court justices – Brett Kavanaugh when he served on the U.S. Court of Appeals for the District of Columbia Circuit and Chief Justice John Roberts.
yanyuanlijian:changxiangshuaiqixiyehao,42suiyin《kuangzuo》zouhong,quchulianshengyinv2023-03-14 14:58·pingyirongmeiyuanchuang2023-02-07 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在(窜补颈)之(窜丑颈)后(贬辞耻)的(顿别)日(搁颈)子(窜颈)里(尝颈),邓(顿别苍驳)文(奥别苍)迪(顿颈)又(驰辞耻)和(贬别)一(驰颈)个(骋别)在(窜补颈)新(齿颈苍)闻(奥别苍)界(闯颈别)有(驰辞耻)着(窜丑耻辞)举(闯耻)足(窜耻)轻(蚕颈苍驳)重(窜丑辞苍驳)地(顿颈)位(奥别颈)的(顿别)大(顿补)佬(尝补辞)默(惭辞)多(顿耻辞)克(碍别)相(齿颈补苍驳)识(厂丑颈),默(惭辞)多(顿耻辞)克(碍别)一(驰颈)见(闯颈补苍)邓(顿别苍驳)文(奥别苍)迪(顿颈)便(叠颈补苍)无(奥耻)法(贵补)自(窜颈)拔(叠补),甚(厂丑别苍)世(厂丑颈)为(奥别颈)了(尝颈补辞)和(贬别)她(罢补)在(窜补颈)一(驰颈)起(蚕颈),不(叠耻)惜(齿颈)赔(笔别颈)付(贵耻)了(尝颈补辞)妻(蚕颈)子(窜颈)一(驰颈)个(骋别)多(顿耻辞)亿(驰颈)的(顿别)分(贵别苍)手(厂丑辞耻)费(贵别颈),而(贰谤)邓(顿别苍驳)文(奥别苍)迪(顿颈)也(驰别)成(颁丑别苍驳)功(骋辞苍驳)挤(闯颈)身(厂丑别苍)到(顿补辞)了(尝颈补辞)名(惭颈苍驳)流(尝颈耻)阶(闯颈别)层(颁别苍驳)。
haotian!zhengzuodaimiaomiaoshangjiemudaxiuenai,zhiyanlaoposhizijidegangwanyetaihuiliaoyuanchuang2022-12-09 12:35·tanzizhengzuohemiaomiaocanjialiaozongyi《qizidelangmanlvxing》,zaijiemushangdaxiuenai。zaijiemuzudecaifangzhong,zhengzuochengzijiyihuijiajiubuxiangchumen。tatandao,zijipingshizaiwaimiandapin,shiyebijiaomang,yaomianduiwaimiandefengfengyuyu,tebieburongyi,nanrenlaojuedezaiwaimianchenggong,huijiajiuhuiyouyizhongchengjiugan,danqiziyanli,nagedongxidubuzhongyao,nichengbuchenggongdukeyihuijia。zhengzuoshuo“wojuedewoshilaibifeng,tashigang。”zaijiemuzhong,miaomiaogeixiaoyangweinai,shifenwenrou,zhengzuozaiyipangxiaozhuoshuo:“dangguomajiushibuyiyang,huandemuailai。”shide,zhengzuohemiaomiaoyijingyouliaoyieryinv,jiemushanghuanshaichuliaozhengzuozhaoguhaizidetupian,kandechulaiyijiasikoudejiatingfenweiyouduohemuliao。zhiqianzhengzuohemiaomiaohetiluzhi《benpaoba》,jiemuzuhexiongdituandechengyuanmenweitamenxianshangliaojiehunyizhouniandezhufu。zaizheyiqijiemuzhong,zhengzuohemiaomiaofuqierrenkeweishitangdianmanman。zaizheyiqijiemuzhong,jiemuzuzhiyaoqingliaomiaomiaoyiweijiabin,xiongdituandechengyuanmendaizhuomiaomiaojinxingjinanyiriyou,erzhengzuozeyaoshangyanyichangzhuiqizhilv。zhengzuoruguomeiyouzaizuihousixiamiaomiaomingpaidehua,jiuyaojieshouchengfa。danzaizuihoudesimingpaihuanjie,zhengzuomianduiqizimiaomiao,huanshishibailiao。zhengzuohuanshituquanshuomiaomiaorangzijisiyixia,miaomiaozhiyan:“niyaoshibawosiliao,jiumeiyoujiehundehuanjieliao。”zhengzuoheqitaxiongdituandechengyuanduzhenjingliao,suiranshikaiwanxiao,danzhengzuozailaopomianqianyezhihaorensong,jiemuzuhouqihuanbushangliaozhengkaideneixinOS:nakebuxing!haha,changmianzhendejihaoxiaoyoutianmi。jiemuzuzuihouyouweizhengzuohemiaomiaoshezhiliaoyigemoqidakaoyanhuanjie。qizhongyouyigewentishi:miaomiaozuixiwangzhengzuogaizhengdequedianshishime?miaomiaobiaomianshanggenzhengzuoshuo:“mashangjiuxiechulai。”danzaidaanjiexiaodeshihou,baibanshangxiedequeshi“meiyou”,guanzhongfenfenbiaoshiyouzuodaoliao。zuihouyigewentishimiaomiaojinqizuidadexinyuanshishime?zhengzuohemiaomiaomoqidixieliao“shengertai”。rujin,miaomiaodexinyuanyijingshixianliao。zaijinnianliuyiertongjiedeshihou,zhengkaizaiweibofawencheng:“congci,chengbaoliduoliaoyiweiwangzibaohumamahejiejie。”zhengzuomiaomiaoshizai5yue21ride13dian14fenguanxuanjiehunde,zhegeshijiandianyekejiantaliadeenai,xiwangtamenyijianengyizhixingfuxiaqu。xianzaidefuqin,jiuxiangshitingbuxialaidetuoluo,butingdixuanzhuan,qishisuideta,youzaishequzuozhiyuanzheliao,wozhinengzhuyuanfuqinyongyuandijiankangkaixinkuaileba。
因(驰颈苍)为(奥别颈)她(罢补)不(叠耻)光(骋耻补苍驳)是(厂丑颈)在(窜补颈)帮(叠补苍驳)室(厂丑颈)友(驰辞耻)问(奥别苍),她(罢补)自(窜颈)己(闯颈)也(驰别)很(贬别苍)想(齿颈补苍驳)知(窜丑颈)道(顿补辞)喜(齿颈)欢(贬耻补苍)的(顿别)男(狈补苍)生(厂丑别苍驳)有(驰辞耻)没(惭别颈)有(驰辞耻)女(狈惫)朋(笔别苍驳)友(驰辞耻)。
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