Nowadays, scientists all over the world are more and more concerning the safety and environmental protection of the car. In order to achieve the sustainable development of the human society and auto industry, all the countries are trying to research different kinds of new technologies to improve the harmony between automobile and environment, especially the developed countries. It is no doubt that electric vehicle is going to be the main development direction of auto industry, which has transited from the experimental stage to test run stage. To guide the trend of world auto technology, many famous auto manufacturers are bringing out new concept vehicles which are safe, environmental protected and with high technical level.
Let us get to know about the characteristics and development of different kinds of automobiles. According to the different kinds of power supply, the automobiles can be divided into three kinds, namely, battery electric vehicle, fuel cell electric vehicle and hybrid electric vehicle.
The battery one merely relies on the battery to supply the power, however, the performance and price of the batteries can not make a breakthrough at the present time. The development of this device does not achieve the intended goal.
The fuel cell one has the advantages of high energy conversion rate, environmental protection and long service life, however, the development of this device is limited by the poor advancement of fuel cell research.
Then it comes to hybrid one which uses the electrical motor and engine to be the power unit. This kind of automobile can implement the low energy consumption, low pollution and high degree of automation through the coordination of the two inner devices. The automobile manufacturers all over the world have turned the emphasis to the development and research of hybrid electric vehicle since 1995. The enterprises in Japan, America and Germany have developed different kinds of hybrid electric vehicle includes car, minibus, truck and so on.
Take a Japan auto Company for example, which is always at the leading edge of this kind of automobile research. The level of its hybrid electric vehicle research has reached a practical level. It brought out the first mass production hybrid electric vehicle in 1997. Then, the minibus was brought out, which adopted the integrated system from the first production. To get better fuel efficiency and lower pollution, the Japan auto Company plan to apply the hybrid electric engine to the whole production in 2012. The related integrated circuit of hybrid electric vehicle is TLP869