Improving EV efficiency through the use of a continuously variable transmission

“动力总成专家越来越一致地认为，如果电动汽车要充分发挥其潜力，就需要发展多速变速器。”这是最近发表在《国际变速器技术》上的一篇文章的标题，该文章报道称，行业已经认识到在电动汽车中使用变速器的必要性。该项目旨在调查通过在电动汽车中加入可变变速器而不是普通的单速变速器可以实现的整体效率提升。变速变速器将克服换挡过程中的能量损失和乘客不适等缺点。这将使能源效率得到显著提高，并有可能缩小电机的尺寸。初步模型研究表明，可以实现16%的改进。改进将在项目期间量化，以证明电动汽车续航里程的增加。该项目将使用安装在电动日产Cabstar上的Mazaro变速器变速器。马扎罗变速器有一种新颖的方法，在所有速比下都能产生非常高的机械效率，因此是该项目的理想选择。

"There's a growing consensus among powertrain experts that EVs need to evolve multi-speed transmissions ifthey are to realize their full potential" This is the tagline from a recent article in "Transmission TechnologyInternational" which reports that industry has recognised the need for a transmission within an electric vehicle.This project is to investigate the overall efficiency gains that can be achieved by including a variabletransmission into an electric vehicle instead of the normal single speed transmission. A variable speedtransmission would overcome drawbacks such as energy loss during shifting and passenger discomfort. This willallow significant improvements in energy efficiency to be made as well as potentially allowing the electricmotor to be downsized. Initial modelling studies have indicated that improvements of 16% could be achieved.The improvements will be quantified during the project to prove the increase in EV range The project will utilisea Mazaro Variator transmission fitted to an electric Nissan Cabstar. The Mazaro transmission has a novelapproach, which produces a very high mechanical efficiency at all speed ratios and so is ideal for this project.