| 英文摘要 |
Research activities on vehicle development have been continued for decades. The standard transportation vehicle has become a daily tool in human society. In the beginning of vehicle history, electric vehicles existed for a short period and were replaced by the combustion engine vehicle due to their poor performance. However, due to massive use of combustion engine vehicles, critically low oil reserve levels and, most importantly, the global environment continuously worsening due to vehicle emissions, the deployment of clean energy vehicles to resolve these problems has become an important solution to the global society. Because electric vehicles can achieve promising performance due to the improvement in battery performance over the past few decades many governments are taking on aggressive projects to develop and deploy electric vehicles. |