基于协议传输的车载OBD采集终端数字计量方法

为保障车载OBD采集终端的量值准确可靠，提高重型柴油车尾气排放监测和超标筛查治理的效果，提出了一种数字计量方法。介绍了车载OBD采集终端的定义、应用情况和计量现状，阐述了车载OBD采集终端的校准方法，分别从最大允许误差的确定和不确定度评定两方面论证了车载OBD采集终端的计量特性。通过论证得到三个结论：校准装置发动机实时数据流最大允许误差取协议规定的数据流精度，车载OBD采集终端的最大允差取校准装置允差的二倍；校准装置发动机实时数据流引入的不确定度Urel=1×10-6,■，经车载OBD采集终端不确定度评定测算，满足U≤MPEV/3的量传要求；试验结果表明，车载OBD采集终端示值误差不超过最大允许误差，计量性能要求合理，校准方法可操作性强。

weibo.com/ttarticle/p/show?id=2309405237995669422559
weibo.com/ttarticle/p/show?id=2309405237995720015918
weibo.com/ttarticle/p/show?id=2309405237995765891464
weibo.com/ttarticle/p/show?id=2309405237995866816706
weibo.com/ttarticle/p/show?id=2309405237995917148247
weibo.com/ttarticle/p/show?id=2309405237995963023547
weibo.com/ttarticle/p/show?id=2309405237996030394643
weibo.com/ttarticle/p/show?id=2309405237996118212709
weibo.com/ttarticle/p/show?id=2309405237996160417924
weibo.com/ttarticle/p/show?id=2309405237996206293071
weibo.com/ttarticle/p/show?id=2309405237996919586912
weibo.com/ttarticle/p/show?id=2309405237996957336102
weibo.com/ttarticle/p/show?id=2309405237997037027631
weibo.com/ttarticle/p/show?id=2309405237997082902666
weibo.com/ttarticle/p/show?id=2309405237997124845777
weibo.com/ttarticle/p/show?id=2309405237997170983109
weibo.com/ttarticle/p/show?id=2309405237997221577177
weibo.com/ttarticle/p/show?id=2309405237997301006493
weibo.com/ttarticle/p/show?id=2309405237997342949414
weibo.com/ttarticle/p/show?id=2309405237997380960329
weibo.com/ttarticle/p/show?id=2309405237997422641169
weibo.com/ttarticle/p/show?id=2309405237997477429470
weibo.com/ttarticle/p/show?id=2309405237997519110372
weibo.com/ttarticle/p/show?id=2309405237997561315337
weibo.com/ttarticle/p/show?id=2309405237997598801980
weibo.com/ttarticle/p/show?id=2309405237997640745092
weibo.com/ttarticle/p/show?id=2309405237997678756118
weibo.com/ttarticle/p/show?id=2309405237997720436919
weibo.com/ttarticle/p/show?id=2309405237997796196416
weibo.com/ttarticle/p/show?id=2309405237997858848780
weibo.com/ttarticle/p/show?id=2309405237997892403381
weibo.com/ttarticle/p/show?id=2309405237997934346254
weibo.com/ttarticle/p/show?id=2309405237997968163128
weibo.com/ttarticle/p/show?id=2309405237998064632137
weibo.com/ttarticle/p/show?id=2309405237998110769154
weibo.com/ttarticle/p/show?id=2309405237998144061522
weibo.com/ttarticle/p/show?id=2309405237998186266627
weibo.com/ttarticle/p/show?id=2309405237998224015460
weibo.com/ttarticle/p/show?id=2309405238000044081448
weibo.com/ttarticle/p/show?id=2309405238000102801647
weibo.com/ttarticle/p/show?id=2309405238000149201147
weibo.com/ttarticle/p/show?id=2309405238000220504364
weibo.com/ttarticle/p/show?id=2309405238000270573570
weibo.com/ttarticle/p/show?id=2309405238000325361878
weibo.com/ttarticle/p/show?id=2309405238000375693447
weibo.com/ttarticle/p/show?id=2309405237936773267510
weibo.com/ttarticle/p/show?id=2309405237936848502799
weibo.com/ttarticle/p/show?id=2309405237936940777480
weibo.com/ttarticle/p/show?id=2309405237937024663697
weibo.com/ttarticle/p/show?id=2309405237937108811987
weibo.com/ttarticle/p/show?id=2309405237937930895428
weibo.com/ttarticle/p/show?id=2309405237938194874518
weibo.com/ttarticle/p/show?id=2309405237938266177572
weibo.com/ttarticle/p/show?id=2309405237938358714396
weibo.com/ttarticle/p/show?id=2309405237938459377680
weibo.com/ttarticle/p/show?id=2309405237938539069534
weibo.com/ttarticle/p/show?id=2309405237938618499076
weibo.com/ttarticle/p/show?id=2309405237938702647354
weibo.com/ttarticle/p/show?id=2309405237938765561909
weibo.com/ttarticle/p/show?id=2309405237938866225210
weibo.com/ttarticle/p/show?id=2309405237938975277249
weibo.com/ttarticle/p/show?id=2309405237939033997678
weibo.com/ttarticle/p/show?id=2309405237939100844241
weibo.com/ttarticle/p/show?id=2309405237939197313158
weibo.com/ttarticle/p/show?id=2309405237940661387411
weibo.com/ttarticle/p/show?id=2309405237940732690498
weibo.com/ttarticle/p/show?id=2309405237940820770917
weibo.com/ttarticle/p/show?id=2309405237940913045508
weibo.com/ttarticle/p/show?id=2309405237940988281021
weibo.com/ttarticle/p/show?id=2309405237941055651870
weibo.com/ttarticle/p/show?id=2309405237941126693103
weibo.com/ttarticle/p/show?id=2309405237941198258345
weibo.com/ttarticle/p/show?id=2309405237941256978553
weibo.com/ttarticle/p/show?id=2309405237941332475923
weibo.com/ttarticle/p/show?id=2309405237941412167897
weibo.com/ttarticle/p/show?id=2309405237941500248161
weibo.com/ttarticle/p/show?id=2309405237941579939920
weibo.com/ttarticle/p/show?id=2309405237941688729686
weibo.com/ttarticle/p/show?id=2309405237941923610633
weibo.com/ttarticle/p/show?id=2309405237942188113938
weibo.com/ttarticle/p/show?id=2309405237942322069720
weibo.com/ttarticle/p/show?id=2309405237942381052019
weibo.com/ttarticle/p/show?id=2309405237942448160989
weibo.com/ttarticle/p/show?id=2309405237942540173576
weibo.com/ttarticle/p/show?id=2309405237942594961471
weibo.com/ttarticle/p/show?id=2309405237942657876008
weibo.com/ttarticle/p/show?id=2309405237942724985162
weibo.com/ttarticle/p/show?id=2309405237942779248754
weibo.com/ttarticle/p/show?id=2309405237942842425392
weibo.com/ttarticle/p/show?id=2309405237942913728655
weibo.com/ttarticle/p/show?id=2309405237942967992562
weibo.com/ttarticle/p/show?id=2309405237943031169065
weibo.com/ttarticle/p/show?id=2309405237943098015925
weibo.com/ttarticle/p/show?id=2309405237947430732061
weibo.com/ttarticle/p/show?id=2309405237947544240252
weibo.com/ttarticle/p/show?id=2309405237947606892706
weibo.com/ttarticle/p/show?id=2309405237947686584439
weibo.com/ttarticle/p/show?id=2309405237947842035716
weibo.com/ttarticle/p/show?id=2309405237947909144720
weibo.com/ttarticle/p/show?id=2309405237948089237574
weibo.com/ttarticle/p/show?id=2309405237948181774396
weibo.com/ttarticle/p/show?id=2309405237948231844086
weibo.com/ttarticle/p/show?id=2309405237948286632054
weibo.com/ttarticle/p/show?id=2309405237948349284400
weibo.com/ttarticle/p/show?id=2309405237948399616107
weibo.com/ttarticle/p/show?id=2309405237948676702278
weibo.com/ttarticle/p/show?id=2309405237948730966274
weibo.com/ttarticle/p/show?id=2309405237948793880652
weibo.com/ttarticle/p/show?id=2309405237948915515673
weibo.com/ttarticle/p/show?id=2309405237948978430053
weibo.com/ttarticle/p/show?id=2309405237949049995268
weibo.com/ttarticle/p/show?id=2309405237949100064835
weibo.com/ttarticle/p/show?id=2309405237949163241485
weibo.com/ttarticle/p/show?id=2309405237949234282533
weibo.com/ttarticle/p/show?id=2309405237949288808558
weibo.com/ttarticle/p/show?id=2309405237949351985196
weibo.com/ttarticle/p/show?id=2309405237949418832096
weibo.com/ttarticle/p/show?id=2309405237950065016955
weibo.com/ttarticle/p/show?id=2309405237950186389726
weibo.com/ttarticle/p/show?id=2309405237950324801544
weibo.com/ttarticle/p/show?id=2309405237950417338371
weibo.com/ttarticle/p/show?id=2309405237950521933916
weibo.com/ttarticle/p/show?id=2309405237950610276360
weibo.com/ttarticle/p/show?id=2309405237950698094793
weibo.com/ttarticle/p/show?id=2309405237950840963149
weibo.com/ttarticle/p/show?id=2309405237950945820682
weibo.com/ttarticle/p/show?id=2309405237951075844184
weibo.com/ttarticle/p/show?id=2309405237951151341833
weibo.com/ttarticle/p/show?id=2309405237951209799709
weibo.com/ttarticle/p/show?id=2309405237951293685814
weibo.com/ttarticle/p/show?id=2309405237951364989060
weibo.com/ttarticle/p/show?id=2309405237951432097917
weibo.com/ttarticle/p/show?id=2309405237951511789596
weibo.com/ttarticle/p/show?id=2309405237951591481375
weibo.com/ttarticle/p/show?id=2309405237951646007462