Smart cars is a are developing high-tech cars, this car doesn"t need a person to go to drive, people just to sit comfortably enjoy this high-tech achievements on line. Because this kind of car is equivalent to the "eyes with car", "the brain" and "foot" TV cameras, electronic computers and automatic control system, these devices such devices are equipped with very complex computer program, so this car can and person as "thinking", "judge", "walking", can automatically start, accelerate, brake, can automatically bypassing ground obstacles. In a complicated cases, it"s "the brain" can be flexible, automatically select the best scheme, command automobile normal, smooth running