Promote the industrialization of automatic transmission standards first

"Although China's auto transmission (AMT) has undergone more than 20 years of research and development, the achievements of scientific research are numerous, but unfortunately, so far, China's own brand AMT R & D still remains in the prototype stage, has not yet formed industrialization, most automatic transmissions from abroad "Import." At the "Automotive AMT (Automated Mechanical Transmission) Industrialization Standards and Laboratory Seminar" co-sponsored by the Gear Professional Association and the China Association of Automotive Engineers' Gear Machining Committee, the Secretary General Wang Shengtang pointed out that China's automobile automatic transmission The industrialization process is difficult. The convening of this seminar is just like what he said: "It is the desire to promote the industrialization of our own brand through the establishment of relevant technical standards and the establishment of an automatic transmission laboratory."
The prospect of automatic transmission market is wide According to Li Shengqi, deputy secretary-general of the association, the automotive automatic transmission has great advantages over the manual transmission and is the development direction of the automotive transmission in this century. At present, the automatic transmission is divided into three categories: electronically controlled machinery, continuously variable transmission, and hydraulic and electric control machinery. AMT is an electronically controlled machine type, which is based on the MT (mechanical transmission), adding ASCS (automatic shift control system) components. ASCS consists of an actuator (hydraulic, pneumatic, or electric) controlled by a microcontroller, with electronically controlled hydraulic (pneumatic) or motor mechanisms instead of human-controlled clutches and shift selectors to achieve automatic transmission functions.
Li Shengqi believes that because of its automatic shifting function, AMT can significantly improve clutch, synchronizer life and driving safety, and retains the traditional high-level mechanical transmission transmission efficiency, small size, simple mechanism, reliable use, easy to manufacture, The advantages of low cost, low fuel consumption and low maintenance cost are particularly suitable for China's national conditions. Especially under the current high environmental protection requirements and the pressure of high oil prices, AMT has a very broad market prospects and is also a key project for the production, learning and research of automobile transmissions in China.
In recent years, with the rapid development of China’s automobile industry, the market demand for automatic transmissions has been continuously expanding. In 2006, the import volume of only automatic transmissions for cars reached US$ 1.637 billion, accounting for nearly 50% of the import volume of gear products. No specific statistics are available, but industry experts estimate that this figure should be more than $2 billion.
At the same time as a large number of imports, Wang Shengtang pointed out that major foreign transmission companies such as Japan’s Aisin, Aida, Germany’s ZF, GETRAK, and US’s BorgWarner have all invested and built factories in China. China's market layout controls the automatic transmission market in China.
Most of my automatic transmissions are still imported. Li Shengqi told reporters that in fact, as early as the early 1980s, China began research on AMT, which lasted more than 20 years, condensing three generations of researchers and many corporate science and technology workers from universities and research institutes. Hard work and creative work.
China's scientific research personnel have done a lot of exploratory work on the theoretical principles, product design and various tests of AMT, including clutch automatic control technology, starting law and shifting law, characteristics and control of starting the ramp, and automatic shift control parameters. Research and tests on gear shift strategies and various types of gear shifting actuators have made breakthrough progress, and completed AMT loading tests on a variety of models. Among them, dynamic three-parameter control shifts and other scientific research achievements are at the international advanced level. Over 20 years of truth-seeking innovation, we have won nearly 10 national and provincial-level scientific and technological progress awards, produced nearly 40 national invention and utility model patents, and published the book “Theory and Design of Automatic Transmission of Vehicles” monograph and higher academic achievement. More than 150 papers on value. It can be said that the research of China's AMT started early, has many achievements and high levels, and has independent intellectual property rights in core technologies. However, he finally emphasized that, unfortunately, the research and development of China's own branded AMT has so far remained at the prototype stage and has not yet been industrialized.
The reason for this is that Wang Shengtang thinks that there are two: First, multinational corporations impose technical blockades and monopolies on us. At the same time, because they are firmly in control of the supply chain, most auto transmission products rely on imports, or are provided by companies that invest in China. Second, because of our own scattered power, insufficient investment, inadequate road spectrum collection, and insufficient experimental data, the reliability and durability of some domestically produced parts are quite different, and there is a lack of AMT technical industry evaluation standards, and there is a lack of vehicle and engine companies. The close cooperation, the lack of integration of social resources, lack of strong support for policies.