At present, a modern, multi-layered new internal combustion engine industrial system has been formed. When studying the development of the industry, we must not only see the progress and achievements made by the industry in the development, but also find out the existing problems and deficiencies in a practical and realistic manner. In terms of the industry as a whole, the internal combustion engine industry's product technology level, enterprise's technology and equipment, operation and management level, development and innovation capabilities, and personnel quality are still different from those of advanced countries in the world. The overall size of the internal combustion engine industry is large, but the levels are uneven, and products and brands that have international competitiveness have not yet emerged. There are many reasons for this, and the industry's ability to independently innovate is relatively weak. Especially in the high-tech fields, the capacity for independent innovation is severely deficient. High-tech is still dependent on foreign countries. The key core technologies and products are subject to human beings as the main obstacles to the development of the industry.

Three Ways for Internal Combustion Engine Industry to Improve Independent Innovation Ability

Independent innovation is an inexhaustible motive force for the development of a country and a nation. Without independent innovation, the products of a company will not be competitive in both domestic and foreign markets and will inevitably be set at a low end. In the long run, it is very likely to be marginalized and become a processing plant of a foreign company, or it will be phased out.

Facts have proved that the core technology can not be bought, and the use of the market for core technology can not be replaced. The introduction of technology and the purchase of foreign equipment can not improve the ability of independent innovation. For the internal combustion engine industry to continue to develop and improve its international competitiveness, it must be determined to continue to cultivate independent innovation capabilities.

At present, the internal combustion engine industry adopts the following three methods to improve its independent innovation capability.

The first is to completely or substantially rely on the strength of the enterprise itself and develop new products in cooperation with institutions of higher learning and research institutes, and to nurture and improve independent innovation capabilities of enterprises in R&D. The products it develops mainly include agricultural machinery, small and medium-sized construction machinery, small and medium-sized ships, and economical passenger cars.

The second way is through introduction or joint ventures, and the introduction of technology to digest and absorb new roads. It should be acknowledged that the introduction of technology or joint ventures will help improve China’s product technology, but there has been no breakthrough in improving independent innovation capabilities, especially in improving core technology innovations. The reason for this is that, first of all, foreign parties control the core technology and neither transfer the core technology nor allow Chinese technicians to participate in research and development. As a result, it is very difficult for China to make breakthroughs in its independent innovation capability in the high-tech field. Second, China’s relevant departments and enterprises lacked a strategic vision, resulting in the repetition of the “introduction-backward-reintroduction” old path for quite some time.

According to reports, the dependence of Chinese enterprises on foreign technology is still as high as 50%, and many products are still subject to control over high-tech core technologies. The author believes that this indicator is also basically applicable to the internal combustion engine industry. There are many projects introduced or joint ventures in the internal-combustion engine industry. The engines for the cars are not counted. The only diesel engines supporting light vehicles, heavy-duty vehicles and construction machinery are the Dongfeng Cummins B-series and C-series, and the Futian Cummins 2.8-liter and 3.8-liter. Chaochao QD32, NGD3.0, and more than a dozen brands, these companies in the introduction of technology can be further digested and re-innovation.

The third way is for domestic companies to sign contracts with well-known foreign technology consulting companies and jointly develop products. According to the contract, we send a group of technical personnel to a technology consulting company to work together with foreign personnel to carry out product research and development. The Chinese company eventually has its own knowledge. property. Through the joint development of the whole process, a group of domestic technicians have been trained in practice. After returning to the company, they become the backbone of technology. The ability to independently innovate has been greatly improved. In the development of new products, various design work can also be carried out independently. Xichai is a good example in this respect. In addition to Xican, Yuchai, Weichai WP series, and Yunnei's diesel engines are also on the road to joint development. Now some automobile factories are taking the road of joint development when they are developing new engines.

It is normal for companies to choose different ways of independent innovation according to their own conditions. Independent innovation and technology introduction are not contradictory. The key is whether or not to re-innovate through the digestion and absorption of technology.

Building and nurturing independent innovation system is an important historical mission facing the industry

Modern internal combustion engines have entered the high-tech era. The technical bottlenecks in the development of modern internal combustion engine products are mainly electronically controlled combustion systems, post-discharge treatment systems, and new types of power systems. These bottlenecks are decomposed, and the real technical bottlenecks are mainly in various industries. As an electronic control device for the sub-assembly and sub-assembly, companies can achieve breakthroughs in electronic control as soon as possible.

It is necessary to track the research on the new science and new technologies of the internal combustion engine in the world, make breakthroughs in the development and manufacturing of high-tech fields as soon as possible, and completely reverse the situation in which China is constrained by others in key high-tech fields. Talent is the key. In particular, it is crucial to master academic leaders and outstanding talents in the high-tech field. Where does the best talent come from? First, it is cultivated from practice; the second is to make full use of both domestic and foreign resources to solve it. Some companies in the industry have done a good job in this area. After employing a variety of methods to hire a group of elite talent at home and abroad, their independent innovation capabilities and the speed of developing new products have greatly improved.

Cultivating and building independent innovation systems is a systematic project: enterprises are the main body, policies are supporters and coordinators, universities and research institutes are collaborators, and all three are indispensable. Due to different corporate conditions, the scale and content of independent innovation system construction are different, but the cultivation of independent innovation system is a persevering task. Only companies that have core competitiveness and are good at using global resources will win the competition and dominate the industry.

The above is a personal reflection of the internal combustion engine industry in the construction and cultivation of independent innovation systems, for everyone to study.

(The author is an old expert in the internal combustion engine industry and former chairman of China Combustion Engine Industry Association)

Electronic Automatic Speed Controller

The speed regulator is a professional design of the regulating board, which includes all aspects of self leveling. It is mainly used to automatically adjust the controlled parameters of the system composed of pressure, tension, speed, temperature and other parameters.

All important current can be controlled by a single external resistor. The simple motor start and stop can be set. The starting timing sequence can be completed by two capacitors by using the power supply of the circuit. The peripheral circuit simply adopts the new reverse potential commutation technology, It can provide the minimum torque without jitter, and control the maximum efficiency. It has reversing PLC, which can effectively suppress the PWM peak noise signal

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