The internal combustion engine industry is an important basic industry in my country. As the leading power of various related industries in the national economy, the reliability of internal combustion engines directly determines the reliability of related supporting complete machines. It is not only the focus of my country's national economic development, but also the focus of energy conservation and emission reduction. It is also the difficulty of industry technology upgrading and structural adjustment.

In order to continuously improve the reliability of internal combustion engines, break through the key core technology "stuck neck" problem, and promote the high-quality development of my country's internal combustion engine industry, the 9th International Conference on Internal Combustion Engine Reliability Technology hosted by the State Key Laboratory of Internal Combustion Engine Reliability was held in Shandong.

Time-honored, boosting industry reliability technology improvement

The reporter learned that since 2012, the International Symposium on Internal Combustion Engine Reliability Technology has been successfully held for nine sessions, with increasing influence, and has become a well-known international academic exchange platform in the industry. With this platform, more and more universities, scientific research institutions and enterprises have carried out cooperative research around the basic theory of internal combustion engine reliability and key common technologies, which has promoted the chain innovation of the internal combustion engine industry and played an important role in promoting the progress of my country's internal combustion engine reliability technology. effect.

"The State Key Laboratory of Internal Combustion Engine Reliability is the only state key laboratory of internal combustion engine reliability in our country, and the only laboratory in China’s key laboratories that studies reliability. As a key scientific research unit in the industry, we are The whole industry chain has built a communication platform for everyone to improve the reliability research level of China's internal combustion engine." Weichai said in an exclusive interview with reporters that Weichai, as the support unit of the key laboratory of internal combustion engine reliability, is a national Diesel’s trust is also Weichai’s responsibility to the industry. Over the years, Weichai has used the platform of the State Key Laboratory of Internal Combustion Engine Reliability to implement open cooperation at home and abroad, which has played a very good role in promoting and realized a good innovation model. Discussion and practice.

It is reported that as early as 2012, 19 international leading universities, research institutes and companies in the internal combustion engine industry, including the Massachusetts Institute of Technology, Tsinghua University, Tianjin University, and Austrian AVL, jointly initiated the establishment of Internal Combustion Engine Reliability International Technology Innovation Alliance. In 2015, the State Key Laboratory of Internal Combustion Engine Reliability settled in Weichai.

These are two major milestones in the history of China's internal combustion engine reliability development. Among them, the State Key Laboratory of Internal Combustion Engine Reliability and the Technology Innovation Alliance carry out in-depth technical research in the fields of internal combustion engine reliability, key component reliability, and internal combustion engine reliability prediction and evaluation technology, and jointly promote the research and development of common internal combustion engine reliability technologies. Solving common problems.

At the same time, the State Key Laboratory of Internal Combustion Engine Reliability sets up about 15 open topics every year to fund the internal combustion engine industry to develop thermal fatigue technology, mechanical fatigue technology, friction and wear technology, sealing technology, reliability prediction technology, fault online diagnosis technology and other key reliability issues. Generic technology. Through the annual International Symposium on Internal Combustion Engine Reliability Technology, Weichai’s full-life cycle reliability design and development system and reliability technology research results are shared to drive the improvement of reliability technology in China’s internal combustion engine industry and help China High-quality development of manufacturing.

Leading the international trend and reaching the world advanced level

At present, how far is the gap between my country's internal combustion engine and the international advanced level? This is a concern of many people in the industry. This is not only related to the future of my country's manufacturing industry, but also an important mission to build my country's automobile power.

In Weichai's view, the most critical issue is the reliability gap. At present, we have not lost the advanced foreign technology in terms of power and thermal efficiency, but there is still a lack of reliability. It is worth mentioning that, driven by the International Symposium on Internal Combustion Engine Reliability Technology and the efforts of the whole industry, the reliability of my country's internal combustion engines has been greatly improved.

"For example, in 2003, we calculated that the B10 life of the engine reached 500,000 kilometers. Now our internal combustion engine has reached 1.8 million kilometers several years ago. This shows that our research and efforts in reliability have received A relatively large effect." Weichai R&D staff explained.

Through long-term cultivation of key technologies for the reliability of internal combustion engines, Weichai's B10 engine life has been at the forefront of the industry, and automotive heavy-duty diesel engines have reached European and American standards. The WP13 engine launched in 2015 has a mean failure interval of more than 250,000 kilometers and a B10 life of up to 1.5 million kilometers, leading the development trend of China's heavy truck power products. The WP9H/WP10H engine B10, the first new product on the H platform launched in 2016, has a life of 1.8 million kilometers and 30,000 hours, setting the highest standard for high-speed and heavy-duty engine life.

In addition, Weichai has also carried out the development of key powertrain technologies, and creatively developed the powertrain configuration technology for heavy commercial vehicles with "large displacement engine + multi-speed transmission + single-stage low-speed drive axle", which has overturned The traditional understanding that only displacement engines can save energy has overcome the technical problems that restrict the power and economy of each other, and realized the simultaneous improvement of power and economy.

Especially in terms of thermal efficiency, Weichai Power focused on the core engine technology and cutting-edge technology, independently researched and developed, and achieved five major technological changes, including collaborative combustion technology, coordinated design technology, exhaust energy distribution technology, zoned lubrication technology, and intelligent control technology. A series of world-class problems such as high-efficiency combustion, low heat transfer, high reliability, low friction loss, low pollutant emissions, and intelligent control have enabled the thermal efficiency of the diesel engine body to exceed 50%, reaching the world's advanced level.

The above achievements have not only established Weichai’s leading position in the field of internal combustion engines in the world, but are also the result of Weichai’s years of deep cultivation in the internal combustion engine industry and focusing on world-class core technology difficulties. Weichai has once again let the world’s counterparts see Chinese-made products with practical actions. power.

Drive your dreams and call "Made in China Brand"

As a leading company in the internal combustion engine industry, Weichai has been deeply involved in the internal combustion engine industry for more than 70 years. It has deep technical background and accumulated experience in the manufacturing and R&D of diesel engines. It has continued to tackle key core technologies. In the past 10 years, Weichai has invested 30 billion yuan in R&D and introduced 200 More than 300 doctors, more than 300 global high-end talents, and more than 3,000 graduate students have gathered to achieve a leap-forward development of independent innovation in the diesel engine industry.

At present, Weichai has established the world’s only R&D and manufacturing base with annual production and sales of one million engines, and has promoted breakthroughs in core technologies for commercial vehicle powertrains, CVT powertrains, and hydraulic powertrains, complementing China’s The core technology shortcomings in these three areas have promoted China's diesel engine industry chain to move towards high-end.

Of course, Weichai, which has a deep heart, is not satisfied with this. In order to break through the key technology of internal combustion engine reliability and input stronger power for China’s industry, Weichai relies on the sense of responsibility of the industry leader, relying on the State Key Laboratory of Internal Combustion Engine Reliability, The International Technology Innovation Alliance for Internal Combustion Engine Reliability and other methods are forging ahead, focusing on the innovative development and cutting-edge trends of internal combustion engine reliability technology to resolve the pain of locking the throat that restricts the development of the internal combustion engine industry.

Focusing on the main business, let the core competitiveness become a "nuclear weapon". As a large state-owned enterprise, Weichai has continuously driven my country's internal combustion engine reliability technology to the world's advanced level with a high degree of structure, awareness and responsibility, and is known as the "Made in China" brand. Editor/Sang Xiaomei