在节能和减排的双重压力下,节能与新能源汽车无疑成为国际汽车产业的发展方向。世界各主要汽车生产国和大型汽车公司纷纷加大了对节能与新能源汽车的研发投入和应用力度,同时大力发展和推广应用汽车节能技术。目前,新能源车的技术路径主要包括插电式混合动力、纯电动两种。业界普遍的观点是,纯电动汽车和燃料电池汽车是长远的战略目标,过渡期间最理想的选择就是混合动力汽车。然而,纯电动客车使用电池作为驱动能量,取代 Under the dual pressures of energy conservation and emission reduction, energy-saving and new-energy vehicles undoubtedly become the development direction of the international automobile industry. Major auto-producing countries and major automobile companies in the world have stepped up R & D investment and application in energy-saving and new energy vehicles. At the same time, they vigorously develop and promote automobile energy-saving technologies. At present, the new energy vehicles, including the technical path plug-in hybrid, pure electric two. The prevailing view in the industry is that the long-term strategic goal of pure electric vehicles and fuel cell vehicles is that hybrid vehicles will be the best choice during the transition period. However, pure electric buses use batteries as driving energy instead