Because recharging an electric car is not as fast or easy as refueling a conventional car, and recharging times differ-from half an hour to over 10 hours depending on equipment-the relationship among recharging stations, users, and the use environment presents a completely novel challenge. For example, if you get halfway on your journey and discover you will soon run out of electricity, how can you know where the next recharging station will be?
由於電動車充電不像汽車加油那樣便捷，充電所需時間依設備不同，從半小時到十多小時不等，因此充電站、使用者與使用環境的關係將是一個全新的挑戰：例如開車開到一半發現快沒電了，如何知道下一個充電站在哪裡？