关键词: 6×4R 重型商用车；大数据；典型工况路谱；动力匹配；燃油经济性；ABS 布置方案

Abstract: This paper combines the transportation characteristics of heavy commercial vehicle in the coal transportation market in Inner Mongolia regional to develop the power system of a 6×4R heavy commercial vehicle. Based on the driving big data of heavy –duty semi-trailer in Inner Mongolia, the principal component analysis method and Markov probability prediction method are adopted to construct a road map of typical working conditions in Inner Mongolia that meets the driving driving force requirements of vehicles, based on this, the matching design of the vehicle power system is carried out, and the comprehensive fuel consumption of the vehicle is reduced by 1 L/100 km, achieving the best fuel economy. Meanwhile, different anti-lock braking system (ABS) layout schemes are proposed, and the compliance of vehicle ABS regulations is verified by tests, and then the ABS layout is determined. The simulation method of vehicle power system matching based on Inner Mongolia working conditions is proposed in this paper, which is helpful to design an efficient powertrain system suitable for heavy-duty semi-tractor in Inner Mongolia, and the ABS arrangement scheme can be applied to the development of the vehicle with the drive axle to be lifted or the following function.

Key words: 6×4R heavy commercial vehicle; Big data; Road map of typical working conditions; Power matching; Fuel economy; ABS layout method