Land transportation over the past two centuries has experienced astonishing advancement. Up until the 1860s, it took more than six months to get from the East Coast to the West Coast of the United States. Today, it may take only three days by automobile. We are even considering flying cars and there are air-taxi startup companies that have announced going public [1] . Vehicle propulsion electrification is at the core of this modern land vehicle revolution. However, the concept of electric vehicle traction is not new.

中文翻译：

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电动和混合动力汽车


过去两个世纪以来，陆路交通取得了惊人的进步。直到1860年代，从美国东海岸到西海岸需要六个多月的时间。如今，乘汽车可能只需要三天时间。我们甚至在考虑飞行汽车，还有一些空中出租车初创公司已经宣布上市 [1] 。车辆推进电气化是现代陆地车辆革命的核心。然而，电动汽车牵引的概念并不新鲜。