Direct-drive e-Powertrain with Integrated Charging Capability

电动汽车（ev）的设计在上个世纪发生了变化。电动汽车很受欢迎，但没有一种设计能抓住公众的想象力。消费者知道电动汽车在节约成本和有利于环境方面具有良好的经济意义。然而，电动汽车在市场上的占有率很低。要想让电动汽车成为大众的必需品，就需要技术和营销的成功结合。为了为电动汽车提供新颖的技术解决方案，以开发价格合理、实用的电动汽车，该提案延续了卡尔博士在电动汽车、机械、驱动和充电技术方面专注、现实、可行、创新和变革的研究活动。传统的电动汽车有一个固定的齿轮传动比，将电动机与差速器和车轮连接起来。用直接驱动动力系统取代现有的变速器将大大减少机械损耗（2%-20%，具体取决于操作条件）。它还将提高车辆的整体运行效率。开发高性能的电机与驱动器，特别是满足直接驱动的要求是至关重要的。此外，当车辆不行驶时，EV内现有的机器/电力电子转换器可以重新配置为1相（1级）或3相（3级）充电器。这种电机驱动/电池充电器集成将允许充电站仅通过三相或单相电源插座为电动汽车提供电力。这将大大节省基础设施建设的成本。该提案的目标是：通过解决与研究相关的问题-直接驱动电机及其具有/不具有集成充电能力的驱动器的设计，具有广度和范围。这项研究还将有助于“加拿大制造”下一代电动汽车的设计/开发。知识的进步，影响该领域的思想/活动方向也是关键。该研究的愿景/影响包括设计出从成本和环境效益的角度来看对公众都是可取的电动汽车，并刺激该领域的更大创新。这将使电动汽车变得令人向往和不可或缺，从而增加其受欢迎程度。这些好处将在短期和长期内提高电动汽车在市场上的销量和占有率。这种普及将提高加拿大的国内生产总值（GDP），并确保加拿大的电动汽车行业在短期和长期内具有全球竞争力。

The designs of electric vehicles (EVs) have changed over the last century. EVs are popular, but no design has captured the public’s imagination. Consumers know that EVs make good economic sense in terms of cost savings and benefit to the environment. Yet, EVs’ presence in the marketplace is low. A winning combination of technology and marketing is needed to make EVs desirable and indispensable to the public. To provide novel technological solutions for EVs for the development of affordable, practical EVs, this proposal continues Dr. Kar’s well-focused, realistic, feasible, innovative and transformative research activities in EVs, machines, drives and charging technologies. Conventional EVs have a fixed gear ratio transmission connecting the electric motor to the differential and wheels. Replacing the existing transmission with direct-drive powertrain will greatly reduce the mechanical losses (2%–20% depending on operating conditions). It will also improve overall vehicle operating efficiency. It is essential to develop high performing electric machines along with drives, especially, to meet the direct-drive requirements. Also, the existing machine/power electronic converters within the EV can be reconfigured into a 1-phase (level 1) or 3-phase (level 3) charger when the vehicle is not in motion. This motor drive/battery charger integration will allow charging stations to provide electric power to EVs only with 3-phase or 1-phase power outlets. This will greatly save costs on infrastructure development. This proposal’s objective: Has breadth and scope by addressing issues associated with research—the design of direct-drive electric machines and their drives with/without integrated charging capability. The research will also help the design/development of “Made in Canada” next-generation EVs. The advancement of knowledge, influencing the direction of thought/activity in the field are also key. The research’s vision/impact includes designing EVs that are desirable from both a cost and environmental benefit perspective for the public and spur greater innovation in the field. This will make EVs both desirable and indispensable—increasing their popularity. These benefits will enhance the sales and presence of EVs in the marketplace both in the short- and long-term. This popularity will boost Canada’s gross domestic product (GDP) and ensure Canada’s EV industry is globally competitive in both the short- and long-term.