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大众cc2.0t轿车变速器频繁脱档故障检修

大众cc2.0t轿车变速器频繁脱档故障检修

发布日期:2020-01-10 作者: 点击:

内蒙古11选5走势图YILIANG2010NIANKUANDAZHONGCCJIAOCHE,2.0TFADONGJI,ZHUANGPEIDQ250XING(02E)6DANGSHISHISHUANGLIHEBIANSUQI。CHEZHUMIAOSHU;CHELIANGZAIXINGSHIGUOCHENGZHONGCHUXIANTUODANGFADONGJIKONGZHUAN、YOUSHIBUNENGXINGSHI,DANGCHUXIANZHENGZHUANGHOUGUANYAOCHIZHONGQIDONGYOUHUIFUZHENGCHANG。GAICHELAIWOCHANGWEIXIU,SHOUXIANYONGJIANCEDIANNAOJIANCHABIANSUXIANGXITONG,YOUCUNCHU“19143(P2711)----BIANSUXIANGHUANDANGCHENGXUBUKEXIN(YIWAIDEJIXIETUODANG)”。QINGCHUGUZHANGMAZAILUSHIGUOCHENGZHONGFAXIANYIDANGUZHANGDENGDIANLIANGSHIJIUNENGJIANCEDAOGAIGUZHANGMA。CISHIBIANSUQIJINNENGYI1DANGHUO3DANGXINGSHI(SUODANG),TONGSHIOUSHUDANGWEIJIDAODANGQUANBUSHIXIAO。


FENXI:YINWEI“19143(P2711)----BIANSUXIANGHUANDANGCHENGXUBUKEXIN(YIWAIDEJIXIETUODANG)”DUIYUZHUANYEDEZIDONGBIANSUQIWEIXIUJISHURENYUANLAISHUOBIJIAOCHANGJIAN,JIHUZAISUOYOUZHUANGYOU02EBIANSUQIDECHEXINGSHANGDOUCENGCHUXIANGUO。ERQIEGAIGUZHANGJIEJUEQILAIYEBUSHIHENMAFAN,YIBANHENRONGYIJIUNENGZHAODAOGUZHANGYUANYIN。RUGUOANZHAO“YIWAIDEJIXIETUODANG”LAIJIESHIGAIGUZHANGMA,HENRONGYIRANGDAJIARENWEIGUZHANGYUANYINKENENGSHILAIZIJIXIECHILUNTONGBUQIFANGMIAN。DANGAIGUZHANGMAHAIYOUYIZHONGJIESHIJIUSHI:BIANSUQIHUANDANGCHENGXUBUKEXIN,RUGUOANZHAOZHEIZHONGJIESHILAIFENXIGUZHANG,ZESHEJIMIANYOUBIJIAOGUANG,BUGUORUGUODONGDEBIANSUQIKONGZHIDANYUANSHEDINGGAIGUZHANGMADEJILI,NEIMEZAISUODINGGUZHANGFANWEIJIUBUNANLE。 YAOXIANGZHIDAOGAIGUZHANGMADESHEZHIJILI,JIUSHIBIYAOLEJIE02EBIANSUQIDEHUANDANGKONGZHICELVE,BAOKUOYUANDIJINGTAIHUANDANGHEXINGSHIGUOCHENGZHONGDEHUANDANG。YOUYUGAIBIANSUQIYOU6GEQIANJINDANGHE1GEDAODANG,SUOYIJIAZAIYIQIJIUYOU7GEDONGLIDANGWEI。ZHEIYANGDUIYU2GELIHEQIDEGONGZUOFENPEI,1、3、5、RDANGYOUK1LIHEQILAIGUANLI,2、  4、  6DANGZEYOUK2LIHEQILAIGUANLI。DANGQIDONGFADONGJISHI,2GEYUXUANDANGWEI(RDANGHE2DANG)JIUYICHUYUHUANJIEZHUANGTAI,JI6/RDANGTONGBUQIBEITUIZHIZHIDANGCE(JULIYIDONGXINXIZEYOUWEIZHIXINXICHUANGANQIG489LAIJIANKONG),2/4DANGTONGBUQIZEBEITUIZHI2DANGCE(JULIYIDONGXINXIZEYOUWEIZHIXINXICHUANGANQIG488LAIJIANKONG)。DANGHUANDANGGANYOUP/NWEIZHIQIEHUANDAORDANGWEIZHISHI,BIANSUQINEIGETONGBUQIWEIZHIBAOCHIBUBIAN,RDANGHE2DANGRENGRANHAISHIYUXUANDANG。  DANGHUANDANGGANYOUPINWEIZHIQIEHUANDAODDANGHUOSDANGWEIZHISHI,BIANSUQINEIGETONGBUQIWEIZHIJIUYAOFASHENGGAIBIAN:SHOUXIANSHI6/RDANGTONGBUQIBEITUIZHIZHONGJIANNDANGCE(JULIYIDONGXINXIHAISHIYOUG489LAIJIANCE);QICISHI113DANGTONGBUQIZEYOUYUANLAIDEZHONGJIANWEIZHIBEITUIZHI1DANGWEIZHICE(JULIYIDONGXINXIHAISHIYOUXINGCHENGCHUANGANQIG487LAIJIANCE),ER2DANGYIRANZUOHAOYUXUANDANGDEZHUNBEI。XINGSHIZHONGDEHUANDANGGUOCHENGZESHIYIJIASHIYUANYOUJIAOSUOFANGWEIZHI(YOUMENTABANHAISHIZHIDONGTABAN)LAIQUEDINGYUXUANDANGXINXIDE。LIRUBIANSUQIYI2DANGXINGSHISHI,K2LIHEQIZAICHUANDIFADONGJIDONGLI,CI


内蒙古11选5走势图ZAILEJIE02EBIANSUQIHUANDANGKONGZHICELVEZHIHOU,BIANNENGZHIDAO19143(P2711)GUZHANGMAJUTISHEJIFANWEI,BAOKUOLIHEQIDEZHUNBEIGONGZUOXINXI、TONGBUQIDEZHUNBEIXINXIYIJIJUTIDEDANGWEICHUANDONGBIXINXIDENG。SUOYIGENJUJINGYAN,WEIXIURENYUANYIBANHUIRENWEICHANSHENG19143(P2711)GUZHANGMADEYUANYINYOU:①YEYAXITONGGUZHANGDAOZHILIHEQIGONGZUOBUZHENGCHANG,TONGSHIYEHUIYINGXIANGTONGBUQIDEDONGZUO;②QUDONGTONGBUQIDONGZUODEMIFENGJIANCUNZAIXIELOU,DAOZHITONGBUQIBUNENGZAIGUIDINGSHIJIANNEIWANCHENGYIDONGGUOCHENG;③XINGCHENGCHUANGANQIXINXIBUMINGQUE(CHUANGANQI、BIANSUQIKONGZHIDANYUANBENSHENGUZHANGHUOTIEXIEGUODUOYINGXIANGWEIYICHUANGANQIZHUNQUEWEIZHIXINXI)。 ZAISHIJIWEIXIUGUOCHENGZHONG,KEYITONGGUOSHUJULIUPANDINGGUZHANGDEWEIZHI。RUZHUYOUYADIANCIFADIANLIUBODONGFUDUJIAODA,YIBANDOUSHIYEYAKONGZHIXITONGGUZHANG;RUGUOTONGBUQIWEIZHIXINXIZAITONGBUQIBEIQUDONGSHI,BUNENGJISHIDAODAZHUNQUEWEIZHI,YIBANLAISHUODOUSHIQUDONGTONGBUQIBOCHADEYEYAHUOSAICUNZAIXIELOUDAOZHIDE;ERWEIZHIXINXIXIANGDUIBIJIAOMOHU,SHENZHIYUBIAOZHUNWEIZHIXINXIXUANSHUGUODA,YIBANDOUSHIDIANKONGWENTIHUOTIEXIEYINGXIANG。SUOYIDADUOSHUWEIXIURENYUANDOUHUIXIANCHANGSHIGENGHUANFATI,RUGUOGUZHANGBUNENGJIEJUE,ZAIJIETIBIANSUQI,JIANCHA8GETONGBUQIBOCHAHUOSAI。TONGSHI,YEKEYISHUNBIANJIANCHASHUANGLIHEQI。RUGUOHAIBUXING,ZUIZHONGGENGHUANBIANSUQIKONGZHIDANYUAN,GAIGUZHANGYINGGAIJIUKEYIJIEJUELE。


该换的部件确实都已更换,可是问题还是依然存在,难道之前的分析中还有不到位的地方?不管怎样,笔者还是决定先路试来捕捉故障现象重现的规律,也就是故障码重现的规律。经试车发现:每一次都是变速器在换2挡、换4挡或换6挡时,故障灯突然点亮,而随后偶数挡和倒挡均出现失效状态,但变速器依然可以以1挡或3挡来行驶。这充分说明问题的根源,应该在偶数挡信息方面,而跟奇数挡没有关系。至于没有倒挡,只不过是变速器控制单元的控制策略而已,也就是说,倒挡本身是没有问题的。

                       


前面已经分析过,造成19143(P2711)故障码出现的条件,除了跟液压系统、同步器位置信息和电子控制信息等有关外,离合器打滑量及传动比信息也是非常重要。要知道,离合器的打滑监测是通过双离合器转速信息G182和2个输入轴转速信息(G501和G502)来计算的。其中,K1打滑量是G182和G501之差,K2打滑量是G182和G502之差。而各挡位传动比信息,则是通过输入轴转速和输出轴转速计算的。既然变速器控制单元没有问题,同步器本身液压方面和位置信息感应也都正常,同时双离合器本身也没有泄漏,那么最有可能的就是离合器打滑量或传动比信息存在问题。
 由于诊断设备问题,不能通过隐藏记录功能来进一步捕捉动态数据,所以只能再次解体变速器,重点对偶数挡部分进行细致的检查。最终发现了问题,原来是输入轴2上的信号靶轮松动(图8),它能够在轴上转动(正常是不能转动)。这样输入轴2的信息就不准确了,也难怪每一次故障都出现在换偶数挡时。


GUZHANGPAICHU:GENGHUANXINHAOFASHENGLUNHOU,ZHUANGFUBIANSUQISHICHE,GUZHANGCHEDIPAICHU。

HUIGUZONGJIE:GAIANLIQUESHIYOUXIETESHU,DANTASHUOMINGLEYIGEWENTI,NEIJIUSHIDAJIAZONGSHIPINGJINGYANXIUCHE,DANGTONGYANGDEGUZHANGYONGTONGYANGDEFANGFAJIEJUEBULESHI,BIANMISHILEFANGXIANG。QISHIZUIWEIGUANJIANDESHI,DUIGUZHANGMAXINGCHENGDETIAOJIANHEJILIZHANGWODEHAIYUANYUANBUGOU,TONGSHIDUISHUJUFENXIYECUNZAIHENDUOBUZU。DANGWOMENSUODINGGUZHANGMASHENGCHENGKENENGYUANYINHOU,ZAIQUXUNZHAOGUZHANGDIANYEJIUBUNANLE。LINGWAIJIUSHIDUIYUGUZHANGXIANXIANGHUOGUZHANGMAZHONGXIANDEGUILVFENXIDEBUGOU,ERMANGMUHUANJIANDAOTOULAIZHINENGZAOCHENGGENGDUODELANGFEI。


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