On September 14, at the fourth APEC car Federation seminar and the 2017mmc smart travel experience week, Chen Qingquan, an academician of the Chinese Academy of engineering who is praised as the "father of electric vehicles", said in an exclusive interview that fuel vehicles are still irreplaceable, and the replacement of old and new energy sources depends on the market
previously, on September 9, xinguobin, Vice Minister of the Ministry of industry and information technology, said publicly at a forum that the Ministry of industry and information technology has launched relevant research on the timetable for stopping the production and sales of traditional energy vehicles, and will also work with relevant departments to formulate China's timetable
in this regard, it is interpreted that the relevant ministries and commissions intend to "cut across the board" fuel vehicles and fully implement electrification
in Chen Qingquan's view, this may be misreading. He believes that at present, automotive fuels are gradually improving the quality of oil products. At the same time, more environmentally friendly bioenergy, including ethanol gasoline, can gradually replace diesel and gasoline; On the other hand, the internal combustion engine has high energy conversion efficiency, good stability in use, and is still irreplaceable in some specific fields
Chen Qingquan, 80 years old, originally from Zhangzhou City, Fujian Province, was born in majilang City, Indonesia. He is a well-known expert in electric drive and electric vehicle
in addition to the Chinese Academy of engineering, Chen Qingquan is also an IEEE fellow, an academician of the Royal Academy of engineering, an academician of the Ukrainian Academy of engineering, and an honorary academician of the Hungarian Academy of engineering
"there is an upper limit to the energy density of the battery, which is difficult to break through. The best way is to integrate the internal combustion engine and the motor."
Chen Qingquan, known as the father of electric vehicles, put forward the core and overall guiding ideology of electric vehicle research, and organically combined automotive technology, motor technology, electric drive technology, power electronics technology and modern control theory, laying the foundation for modern electric vehicle science
as for the comparison between electric vehicles and fuel vehicles, Chen Qingquan believes that each has its own advantages and disadvantages, which should be analyzed in combination with specific use scenarios. Fuel vehicles have short refueling time and long mileage. Fuel vehicles are highly irreplaceable in the field of heavy-duty and logistics. Of course, electric vehicles have high energy conversion efficiency and good power performance, but the energy density of the battery is far lower than that of bioenergy, and the driving mileage is limited. If you want to run a long distance, you have to stack the battery pack and increase the vehicle weight; Even if the charging is fast, it still takes dozens of minutes, reducing the economic effect of commercial vehicles
although the above problems can be made up through power change, wireless charging, battery technology innovation, etc., Chen Qingquan believes that the software of the battery is still not robust, and there is an upper limit of energy density, which is difficult to break through
as for the application of fuel and new energy in automobiles, Chen Qingquan believes that the best way is to integrate internal combustion engine and electric motor
he cited an example. In 2016, the start-up car company Tae Cruz Tengfeng tried to develop an incremental hybrid vehicle. The body uses a gas turbine for aircraft to generate electricity, and then the vehicle is driven by on-board batteries
public information shows that the maximum speed of this car can reach 350 kilometers per hour. After the fuel tank is full, the range reaches 2000 kilometers, and the theoretical fuel consumption of 100 kilometers is 0.18l
the gap between China's battery technology and the world's leading battery technology is gradually narrowing. After all, China's new energy vehicles are used the most, have the most experience and make the fastest progress. Chen Qingquan is full of confidence in the technical strength of China's electric vehicles. At present, the energy density of mainstream ternary material batteries is 200wh/kg. A scientific research team of Tsinghua University, through technological improvement, adopted bionic honeycomb structure to replace the traditional flat plate structure, plus the use of new materials, making the energy density reach 800wh/kg
the prohibition of fuel vehicles needs to be carried out step by step. It is suggested that we should consider banning traditional fuel vehicles in Beijing, Shanghai, Guangzhou and Shenzhen in advance
Chen Qingquan believes that the energy revolution in the field of travel is imperative. From a personal point of view, manufacturers have prospered the market and provided customers with more economical and practical experimental machines. Convenient car life is the instinct of consumers to pursue a happy life, and the demand for car consumption will further expand; From the perspective of the public, the external effects of car use must also be taken into account for the natural environment and social environment. The compromise between the two will inevitably lead to the continuous improvement of the standards of energy conservation and environmental protection of vehicles
Chen Qingquan suggested that we should look calmly at the "countdown" of the intensive introduction of the "ban on fuel vehicles" in European countries. This is mostly the call of politicians. When it comes to implementation, there are many and complex issues involved, which need to be studied jointly by academia and industry
according to incomplete statistics, seven countries in Europe have set up a timetable for banning the sale of fuel vehicles. The preparation time for car companies is very different, with a minimum of 8 years and a maximum of 33 years. Among them, Norway and the Netherlands set 2025, Switzerland and Belgium set 2030, France and Britain set 2040, and Sweden set 2050
Chen Qingquan believes that the premise of "banning the sale of traditional fuel vehicles" has two points: first, it causes the change of sensor output voltage. First, after the abolition of financial subsidies, new energy vehicles still have a strong cost performance, attracting consumers to take the initiative to choose; 2、 Domestic infrastructure construction should be fully prepared. The area is vast and the situation of different regions is completely different. Before banning a product, it must be connected with substitutes. It is up to the market to decide
according to Xinhua news agency, the European Association of automobile manufacturers proposed on September 13 that by 2030, relevant parties will promote the reduction of carbon dioxide emissions of vehicles by 20% compared with 2021, but only if the development area of the electric vehicle market is mature. Dieter Zetsche, chairman of the association and chairman of Daimler, said that European emission reduction targets should be combined with the current market situation, and "the current market situation is that consumers have low acceptance of electric vehicles"
in terms of specific implementation, Chen Qingquan's view is that we must step by step in stages and regions. During this period, relevant departments need to listen to the voices of the industry and academia more and formulate policies reasonably. For example, the ban on the sale of traditional fuel vehicles can be cancelled from the north, Shanghai, Guangzhou and Shenzhen areas as a pilot
pursue the "carbon footprint": including carbon emissions trading, supporting policies should be followed up as soon as possible
in Chen Qingquan's view, transportation accounts for 1/3 of the total energy consumption. Carrying out experiments under actual operating conditions and banning fossil energy will trigger the domestic energy revolution. At present, fossil energy still accounts for a large proportion in China. It is expected that fossil energy will still account for half of the energy sources by 2050. Therefore, it is necessary to assess the environmental protection of electric vehicles from the perspective of "full life cycle", including the power generation mode of power plants, the actual emissions of vehicles on the road, and battery recycling, which requires pursuing the "carbon footprint"
it is understood that carbon footprint, in English, refers to the collection of greenhouse gas emissions caused by enterprises, activities, products or individuals through transportation, food production and consumption, as well as various production processes. The more "carbon" is consumed, the more "carbon dioxide" is produced, and the larger the "carbon footprint" is; On the contrary, the smaller the "carbon footprint"
Chen Qingquan suggested that the relevant departments should speed up the previous carbon trading system. Now there are smart link technology and time-sharing leasing business scenarios to encourage users and car operators to use low emission vehicles and effectively reduce pollution
Copyright © 2011 JIN SHI