Internal combustion engine and new energy vehicle development complement each other

In 2010, in the context of the country’s strong promotion of energy-saving emission reduction and advocacy for the development of new energy vehicles, the China Internal Combustion Engine Society also used the same words “on yesterday, at the time of the 7th National Member Congress and the 8th Academic Annual Meeting of the China Internal Combustion Engine Society”. Today and tomorrow, a seminar was held on the theme of summing up and thinking about the past, present and future of the internal combustion engine industry.

On September 26, 2010, the "Year, Today, and Tomorrow of Internal Combustion Engines - Sustainable Energy Saving, Emission Reduction, and Green Power for Harmony" Seminar (hereinafter referred to as the "Seminar") hosted by the China Institute of Internal Combustion Engines was held in Beijing. Zhang Xiaoyu, Executive Vice President of China National Machinery Federation, Chairman of China Internal Combustion Engines Institute, Yang Shuyi, Executive Vice Chairman and Secretary-General of China Internal Combustion Engine Institute, Professor Ouyang Minggao, Professor of Tsinghua University, Su Wanhua, Professor of Tianjin University, etc. from industry organizations, universities and enterprises. Representatives attended the meeting.

In recent years, with the rapid development of China's economy and industry, China's internal combustion engine industry has flourished. At present, China’s total annual output of internal combustion engines is about 1.1 billion kilowatts. What is the concept? By the end of 2009, China’s total installed capacity for electric power was 874 million kilowatts. According to the plan, the average annual installed capacity will increase by about 100 million in the next five years. kilowatt. Compared with the two, the internal combustion engine's position in China's industrial development is clear at a glance.

“We can be certain that in the visible future, the role of the internal combustion engine will remain irreplaceable. In 2008, we held a celebration to mark the 100-year event of the Chinese internal combustion engine industry. In the context of new energy vehicles being incorporated into the country’s strategic emerging industries, What role does the internal combustion engine play in the country's energy conservation and emission reduction? How will the Chinese internal combustion engine industry become stronger and create greater glory for 100 years? This is a question we need to consider.” Zhang Xiaozhen pointed out the original intention of holding the seminar.

Internal combustion engine energy-saving and emission reduction needs social support

According to reports, in 2009, there were about 400,000 employees of internal combustion engines in China, total industrial output value was 273.9 billion yuan, and about 67 million internal combustion engines were produced (of which 13.79 million were for autos), and the total power was 1.13 billion kilowatts, which was an increase of 10% over 2008. %about.

At the same time as high-speed growth, the development of internal combustion engines faces enormous challenges in energy conservation and emission reduction. In terms of energy consumption, in 2009, China’s oil import dependency reached 51%, while the internal combustion engine’s oil consumption accounted for about two-thirds of the country’s total consumption, and it was a veritable oil user. In terms of emissions, exhaust gas emissions from internal combustion engines account for more than 50% of the air pollution in most non-heating seasons in most cities in China, and they are the major air pollution sources in the city. "In order to ensure energy security and achieve sustainable development, China's internal combustion engine industry must move from traditional industries to high-tech industries, from resource-consumption to environmental protection," said Yang Shuyi.

Experts pointed out that paying attention to the development of internal combustion engines and improving the internal combustion engine technology require the support of the government and society as a whole.

First, the society needs to have a deeper understanding of the internal combustion engine. “The mechanical industry is the foundation of the entire industry, and the internal combustion engine is the basis of the mechanical industry. However, the more basic things are often more easily overlooked. Take the automobile and the internal combustion engine as an example. Although the powertrain is the core of the car, the average consumer is The vehicle’s attention is much greater than that of the internal combustion engine. We need to gradually bring industrial civilization and automotive culture to a deeper level,” said Ouyang Minggao.

Second, the development of the internal combustion engine industry is inseparable from the government's support. Xing Min, secretary general of the China Internal Combustion Engine Industry Association, said that in 2009, the state's 10 major industry revitalization plans involved automobiles, equipment manufacturing, and ships all related to internal combustion engines. However, in every revitalization plan, internal combustion engines have been marginalized. "Fortunately, the government has made adjustments in time. In this year's technical reform project, the National Development and Reform Commission and the Ministry of Industry and Information Technology have listed the internal combustion engine separately," he said.

The development of new energy vehicles can drive the upgrading of the internal combustion engine industry

At present, the country attaches great importance to the development of new energy vehicles. The fundamental change in new energy vehicles compared with traditional cars is reflected in the power system. Therefore, some people think that new energy vehicles will squeeze the development of the internal combustion engine.

Zhang Xiaoji believes that new energy vehicles are the inheritance of traditional automotive technologies. The development of new energy vehicles is a long-term strategic choice for the country and an inevitable choice for the automotive industry to seek sustainable development of the energy environment. It cannot provide immediate results for the country's energy conservation and emission reduction. Fu Lianxue, deputy director of the Intelligence Research Center of China Automotive Technology Research Center, once predicted that by 2020, the most important means for China to save automobile oil is still the upgrading of traditional cars.

“The technical platform I use to develop a miniature electric car is now evolved from the internal combustion engine R&D platform.” Ouyang Minggao said that the internal combustion engine and new energy vehicles are essentially unified. For example, compared with the internal combustion engine, the battery is also a power device, the research method is connected with the internal combustion engine, and the control is also very similar to the internal combustion engine control.

Ouyang Minggao believes that the development of hybrid vehicles can drive the upgrading of the internal combustion engine industry. “The micro-hybrid, light-hybrid system is, in a sense, a modification of the internal combustion engine. In a strong hybrid power system, the internal combustion engine plays a vital role. On plug-in and range-extended hybrid vehicles, there is still a need for high An efficient, low-noise, low-emission internal combustion engine,” he said.

At the enterprise level, the role of internal combustion engine companies in the development of new energy vehicles is also increasingly important. For example, the development of China's passenger car hybrid power system was led by OEMs. However, large-scale diesel engine plants such as Weichai and Yuchai have all started to develop their own hybrid power systems. For example, Weichai is currently leading the development of a hybrid power system in the country. project.

Internal combustion engine energy-saving emission reduction technology to enhance the space

At the beginning of the invention of the internal combustion engine, the thermal efficiency was only 10% to 12%, and it has reached more than 40% today. Before the 1970s, China had no regulatory restrictions on the emission of internal combustion engines. Today, China has gradually implemented the National III and National IV emission standards, and in the future it will be in line with international standards. The experience and technical potential of the internal combustion engine tell us that in the face of the current energy-saving and emission-reduction trends, the internal combustion engine still has a huge space.

Su Wanhua introduced that the internal combustion engine experienced three technical revolutions: in the 1920s, the emergence of mechanical pumps improved the combustion process of internal combustion engines; in the 1950s, exhaust gas turbochargers made the internal combustion engine more dynamic and economical; In the era when two oil crises broke out, it was at this time that the internal combustion engine ushered in an intelligent revolution, and combustion technology again took a qualitative leap forward. “In 2007, the American Combustion Association predicted that the thermal efficiency of internal combustion engines could be increased by 25% to 50%. Some foreign experts believe that it is possible that the thermal efficiency of internal combustion engines will increase by 60% to 70%. It should be said that the development prospects of internal combustion engine technology are very broad. There is a lot of room for improvement," Su Wanhua said.

For the advancement of the internal combustion engine technology, Zhang Xiaolu said that in the next 10 years, China must become a strong state of the internal combustion engine. In the next five years, it is the key to the optimization of the internal combustion engine industry structure in China and the establishment of independent innovation capabilities for the next five years. Related companies and industry organizations need to conscientiously do a good job of the “12th Five-Year Plan” development plan. "The industries relying on the development of the internal combustion engine include automobiles, Construction Machinery and agricultural machinery. China has to be the world leader. China has a market for the development of internal combustion engines. The core of future development is the improvement of technological innovation capabilities," he said.

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