车库快评：边跑边充电？德国人告诉你，解决里程焦虑没问题！
据外媒报道，德国正在测试一条新型高速公路，该公路将使用架空的电缆，为在路上行驶的混合动力汽车充电。该技术名为eHighway，由西门子开发（Siemens），配合大众集团子公司斯堪尼亚（Scania）混合动力卡车而设计。目前，德国正在法兰克福附近一条6英里长的高速公路上试验该技术，计划将一直运行到2022年，之后可能会在全国范围内推广。
MiVo车库快评：
一、西门子开发eHighway技术，多种选择为混动车实现边跑边充电：西门子这项神奇的边跑边充电技术叫做eHighway。其工作原理是向电动卡车的"导电弓架"或导体棒输送670V的直流电，该系统只在车辆以56 mph速度运行时工作。但是在进行充电时，混合动力车可完全依靠电机运行。这样就可以实现在指定路段内对指定车辆进行边跑边充电了。
当然了，虽然这样的设计多少有一点复古有轨电车的感觉，但是实际上西门子的eHighway技术还分别在瑞典和加利福尼亚州进行试验和演示，瑞典还在一条道路上安装了地下电轨为汽车充电。西门子的目标是真正找到一个能够实现边跑边充电的有效途径，虽然这看起来并不是现行的最好方法。
二、中国在济南已经实现边跑边充电技术，日本英国也不约而同：对于边跑边充电这个想法，我们中国人有自己的理解。早在2017年11月，在济南就专门铺设了全球首条承载光伏路面研发与铺设的高速公路。通过光伏发电和无线电磁感应，可以实现边跑边充电。而且路面还能够实现电热转换，在冬季雨雪天气防止路面湿滑结冰，提高车辆行驶安全。
不仅是我们中国人在研究"可充电路面"，包括英国之前也在设计具备无线充电技术的高速路段，另外，日本人更是直接提出了设计"无线充电技术的无形轨道"。不过这样的特殊路面制造成本非常高，并且后期的养护成本非常高，并不利于大规模的铺设和投入使用。
三、高科技的充电方式往后站，先做好基础建设才是提供充电便利的根本：其实对于这样的边跑边充电的技术，我们现在更多的停留在第一层次的研发阶段。目前针对实际生活中的应用，更多的还是需要解决的是充电桩的数量已经充电费用和价格的问题。以我国为例，目前虽然铺设的充电桩数量不少，但是实际上能够真正投入应用和获得使用的还是远远满足不了需求的。
针对这一点，我们之前也说过的，包含着复杂国内使用情况的中国充电桩可以说是非常难普及了。举个最简单的例子，且不说国内的小区能够真正供给多少充电桩，就算现有的充电桩和充电车位，也依然被各种占用。尤其是充电车位，经常能看到被燃油车型占用。现在大环境如此不好，燃油车型正在被"倾销"，未来燃油车型的增多和车位的越来越少，会加剧么？
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