On July 9th, the summit of the 'burning' power car power development trend hosted by Ryukyu Motors was held in Beijing. A number of authoritative experts in the field of internal combustion engines gathered together to analyze the future development trend of car power by interpreting new technologies of car power.
In "Made in China 2025", China has made 'energy-saving and new-energy vehicles' a breakthrough in key areas. At the same time, 'National Six' emission standards, 'double points' policy, four-stage fuel restrictions and other industrial policies will soon Implementation in succession, the above strict standards indicate China's determination to take the road of energy conservation and emission reduction.
In the context of energy conservation and environmental protection, how does automotive power respond to emissions and fuel consumption constraints? How can the functionality and stability of power products improve? How to further tap the potential of hybrid, turbocharged, naturally aspirated and three-cylinder machines It became the focus of discussion among the experts at the meeting.
At the forum, Wang Binggang, head of the National New Energy Vehicle Innovation Project Expert Team, said: The carbon emissions and air pollutant emissions of the vehicle's life cycle are closely related to energy consumption; low-energy fuel vehicles have obvious emission reduction effects; hybrid systems It is the most effective technology to reduce fuel consumption in fuel vehicles; developing hybrid technology to reduce energy consumption and reduce emissions!
The following is a speech by Wang Binggang, head of the expert group of the National New Energy Vehicle Innovation Project:
Good afternoon everyone, just now the industry leaders have made some introductions on the macro things. I think ten minutes, I will talk about a small topic, that is, the meaning or relationship of hybrid technology to atmospheric environmental governance, may be able to follow today's The topic is combined.
Recently, we have seen that the central government is paying more and more attention to the issue of atmospheric governance. I have been impressed by various important meetings since last year. They all talked about the issue of atmospheric governance. At present, our atmospheric environment, emissions from automobiles and mobile sources. Still a big problem, this is some data issued by the Beijing Environmental Protection System, which means that 45% of the local bus stations are in the local source, so I think in the future I believe that the issue of environmental protection will become a very important evaluation or influence on the development of Chinese automotive technology. An important part, so this may be what I want to attract the attention of our industry.
We said that we should make an objective and scientific evaluation of the environmental protection of automobiles. I think this is the basis for our future work. We know that in the past, our car environmental problems were mainly on the exhaust of automobiles, such as we said from the country. The four standards to the country five, the country six, are all set out some policies and standards around the exhaust emissions, but after the new energy car becomes an important product, emissions are not enough on the exhaust gas, because it is very simple to say that the exhaust emissions of electric vehicles are zero, in fact Is the emission of electric vehicles zero? Obviously not, there are many people in the community who have questioned that electric vehicles have a lot of electricity. So this question, this kind of questioning makes sense, so we are due to the new energy vehicle industry. The rise, the assessment of vehicle emissions will change, we have to re-evaluate how to objectively assess the emissions of cars.
The first is to establish a full life cycle emission evaluation instead of a simple exhaust emission method. The life cycle includes two axes, one is the fuel shaft, we call it the fuel cycle, and also an automobile manufacturing shaft, from automobile manufacturing. To the scrapping of cars, we call it the material cycle. The two axes are all in a row of cars from birth to its retirement. The amount of emissions it brings can be more comprehensive, more complete, and more objective. Concerned about the emission of atmospheric pollutants, automobile exhaust, and air pollutant emissions. Now we simply say that in addition to atmospheric pollutant emissions, we also need to pay attention to greenhouse gas emissions. The assessment of emissions also includes two aspects. Now this work We are doing this work now in the Automotive Engineering Society. Because this work is getting more and more attention, the Ministry of Industry and Information Technology attaches great importance to this work. We are organizing a cross-industry expert group, and I have participated in this work. He is also working on vehicle emissions assessment, and has recently passed a vehicle life cycle assessment. Institute a standard, that is the industry standard, this standard will soon announce that we are now in accordance with this standard are collecting some data.
For example, I have now collected the carbon emission factor of the fuel cycle, that is to say, the concept of emission factor is proposed in this standard. The emission factor is used to calculate very complicated data. The two axes just mentioned have very much data. One concept allows the government to control emissions, and those who specialize in emissions assessment can do relatively simple operations? So put forward a concept of emission factors, from emission factor units, thickness, level emissions, for example, we spent a full What is the life cycle discharge, how much is the life cycle of a liter of oil, or how much the car is driven by one kilometer? The concept is the concept of the emission factor. For example, the data we have listed now, the electric car The emission factors for the fuel cycle of gasoline vehicles are listed. Looking at this data, China's electricity emission factor data for 2015 is 854 grams of carbon dioxide emissions per kilowatt-hour of electricity consumption. We also compare the data from Singapore and Japan. The carbon emissions of power generation in our country are still relatively high. At the same time, I also listed the consumption of one liter of oil. 183 grams of carbon emissions, we call it carbon emission factor.
We can do some analysis work with such emission factors. For example, we have made these two lines. Here, we represent a range of power consumption common to electric vehicles, ranging from ten degrees to thirty degrees. This is a passenger car. Correspondingly, the fuel car, the most fuel-efficient fuel car hybrid is about four liters, the high to fifteen liters, using the carbon emission factor to make these two lines, we can compare, see Compared with the fuel vehicle emissions, electric vehicles are generally less than fuel vehicles, but we also see that there is still a large chunk in the middle. When the kilometer consumes 15 degrees, it may be equivalent to four liters of fuel per 100 kilometers of fuel vehicles. It can be seen that if the fuel car is very fuel-efficient, your carbon emissions are not high. This is the topic with me. Relationship, if we do a good job of hybrid technology, the carbon emissions of hybrid vehicles, the carbon emissions of the whole life cycle can also be achieved very low.
When we talk about the emission of atmospheric pollutants, we have also done these two kinds of maps. These two figures are the ones that have just been reversed. The electric vehicles mentioned there, here are traditional cars. Of course, we also clearly see the electric cars. Air pollutant emissions are also superior to traditional cars, but you can see that it is also related to energy consumption. If our traditional car energy consumption is very low, its emissions will be small.
Because of the time relationship, I can't elaborate on it. In fact, there are still a lot of homework to do. I am talking about the fuel cycle here. The material cycle work is still being done. From the work I have done so far, can I simply Export a few conclusions.
First: the carbon emissions of the car's life cycle and the emission of atmospheric pollutants, it is closely related to energy consumption. The lower the energy consumption, the lower the emission, which is the same regardless of the type of car.
Second: Low-energy fuel vehicles have obvious emission reduction effects. This is certain. The lower the energy consumption, the better the emissions.
Third: Is it possible to say that hybrid power system is the most effective technology to reduce fuel consumption of fuel vehicles, so it is also a very good technology to achieve low emissions.
Fourth: From the specific national conditions of China, car energy must adhere to a diversified development strategy. Fuel vehicles will play an important role in the last long time. What should we do? Fuel vehicles still exist for a long time, so I feel that it is necessary to develop hybrid technology to reduce energy consumption and reduce emissions.