重型车底盘测功机油耗的测试和统计  

Testing and statistics of the heavy-duty vehicle chassis dynamometer fuel consumption measurement

作　　者：仝畅 任烁今 李腾腾 刘栋 刘麟 张朋 刘志伟 景晓军 杨正军 TONG Chang;REN Shuojin;LI Tengteng;LIU Dong;LIU Lin;ZHANG Peng;LIU Zhiwei;JING Xiaojun;YANG Zhengjun(CATARC Automotive Test Center(Tianjin)Co.,Ltd.,Tianjin 300300,China)

机构地区：[1]中汽研汽车检验中心(天津)有限公司,天津300300

出　　处：《汽车安全与节能学报》2024年第4期553-560,共8页Journal of Automotive Safety and Energy

摘　　要：为实施国Ⅳ油耗标准对重型车的策略,针对中国内地目前重型车的油耗水平,研究了车辆轻量化对100 kmt体积油耗的影响。统计分析了1408辆满足国Ⅲ油耗标准重型车的底盘测功机认证数据,采用100 kmt体积油耗来衡量重型车的燃油经济性。结果表明:半挂牵引车的平均油耗与国Ⅳ限值之间的偏差最大,约为8.0%;货车的平均油耗与国Ⅳ限值之间的偏差为3.0%;对于最大设计总质量(GVM)超过20 t的货车,城市工况是油耗优化的主要策略。车辆100 kmt体积油耗与载质量成负相关;随着GVM的增加,货车和自卸汽车的100 kmt体积油耗呈下降趋势;半挂牵引车的100 kmt体积油耗基本不变,约为1.0 L。因而,采用车辆轻量化技术有利于降低100 kmt体积油耗。The impact of vehicle light-mass on 100 kmt volume fuel consumption were investigated to implement the strategy of ChinaⅣaccording to the current fuel consumption standard for heavy-duty vehicles in China mainland.The chassis dynamometer certification data of 1408 heavy-duty vehicles meeting ChinaⅢfuel consumption standard were statistically analyzed.The results show that the largest deviation between the average fuel consumption and the ChinaⅣlimits is from tractors,which is about 8.0%.The deviation between the average fuel consumption and the ChinaⅣlimits of trucks is around 3.0%.The urban condition is the main strategy of fuel consumption optimization for trucks with the Gross Vehicle Mass(GVM)exceeding 20 t.The fuel volume consumption per 100 kmt is negatively correlated with the vehicle payload.With the increasing of GVM,the fuel volume consumption per 100 kmt of trucks and dump trucks shows a downward trend,while the fuel volume consumption per 100 kmt of tractors is basically unchanged,which is nearly 1.0 L.Therefore,using vehicle light-mass technology is beneficial for reducing 100 kmt volume fuel consumption.

关 键 词：重型车 节能 100 kmt体积油耗 载质量 底盘测功机 

分 类 号：U467.12[机械工程—车辆工程]