We are experiencing technological development stages, human began to consider air pollution how brings our natural environment to cause worse. Our cars fuel emission can also pollute our air when we are often driving ourselves cars to go to anywhere for leisure or working aim. Instead of ourselves cars emission air pollution, public transport tools, such as buses, taxis, ferries, their fuel emission also influence our air to be polluted. Because passenger individual comfort need began raises. So, electric auto non-manual driving cars, battery charge energy cars are began to consider how to invent in order to reduce air pollution and raise driver individual comfortable need, instead of improving driving speed to be rapid, car inventors also hope to avoid air pollution to pollute our natural environment. When global fuel cars number continues increases.