Testing and statistics of the heavy-duty vehicle chassis dynamometer fuel consumption measurement
The impact of vehicle light-mass on 100 kmt volume fuel consumption were investigated to implement the strategy of China Ⅳ according to the current fuel consumption standard for heavy-duty vehicles in China mainland.The chassis dynamometer certification data of 1 408 heavy-duty vehicles meeting China Ⅲfuel consumption standard were statistically analyzed.The results show that the largest deviation between the average fuel consumption and the China Ⅳ limits is from tractors,which is about 8.0%.The deviation between the average fuel consumption and the China Ⅳ limits 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.
heavy-duty vehiclesenergy conservationfuel volume consumption per 100 kmtpayload masschassis dynamometers
NETL
NSTL
万方数据
