The automobile transmission is an important field in the automotive industry. The automatic transmission is a complex mechatronic system combining various technologies. It requires a good match to a variety of automotive powertrains to realize various application functions and diagnostics of automobile driving. Features and so on. In terms of technology implementation, automatic transmissions involve a number of industries, such as gears, bearings, friction plates, seals, and hydraulics in the machinery manufacturing industry, as well as electronic chips and control software for the computer industry. Therefore, to develop a technologically advanced automatic transmission, a complete industrial chain must be formed.
After several decades of development, foreign automatic transmissions have formed a complete industrial chain. According to the value-added chain analysis and their own product strategies, automatic transmission companies will hand over some parts to the first-tier suppliers, and suppliers of spare parts will also Looking for suppliers of a specific part of their own, and some small and medium-sized enterprises that can provide special processes, such as the plating of hydraulic valve bodies, etc., the production of such an automatic transmission will involve dozens and hundreds of companies, thus forming an important Large-scale industry.
With the development of China's auto market, domestic auto manufacturers have begun to speed up the development of their own automatic transmissions. In recent years, major auto companies and several new transmission companies have their own automatic transmission projects, with more than 20 different types of automatic transmission research and development Some have already been put into production in small batches, some have already been prototyped and some are under development; this will inevitably greatly promote the development of the automatic transmission supply chain. In particular, existing manual transmission accessory suppliers can use this opportunity to improve products. Level and expand the application of the product.
Gap apparent dominant foreign <br> <br> As described above, the automatic transmission involves a gear, bearings, friction plates, seals, hydraulic and other industries, where the gear industry is the China General Machine Components of the largest industries, In terms of output value and sales volume, it ranks among the top in the world and belongs to a big gear manufacturing country. In the output value of gears, the automobile industry again took first place, far exceeding 50%. Automobile gears mainly include: spur gears, planetary gears, spiral bevel gears, straight bevel gears, synchronizers and gear rings, transfer gears, power take-off devices, and various assembly products.
In recent years, the degree of concentration in the domestic gear industry has significantly increased, the industrial chain has taken shape, and a modular and specialized supporting market system has emerged. Some enterprises also provide gearing products for automatic transmissions, but at present, the automobile automatic transmission assembly market in China's vehicle gear industry is still dominated by imported technologies or foreign-funded products, and the high-level drive system supporting chain for vehicle powertrains needs to be further improved. Domestic automatic transmission components and parts manufacturing enterprises must start from the quality management system, design, simulation and test engineering systems, product development personnel and operating technology workers training and technical knowledge management system, etc., not only to learn to digest foreign high-level technical hardware, It is also necessary to understand the application of software for foreign management and development systems, so as to firmly and steadily enter the first echelon of the supply chain.
In terms of torque converters and clutches, although China has many years of experience in development and production, there is still a long way to go compared with foreign advanced technologies. As the most advanced automatic transmissions in foreign countries enter the domestic market, it will be accompanied by the localization of many parts and components, which provides a good opportunity for domestic companies to step up the product. Especially for mechanical products such as torque converters and clutches, the technical threshold is relatively low. Compared with the development and production of electronic control units, the investment is not particularly high. It is entirely possible to compete with foreign manufacturers. The key is to establish an optimized management system. , development, production and knowledge accumulation system. Such as Shaanxi Aerospace High-tech Co., Ltd., Wuxi Hydraulic Machinery Co., Ltd. production of torque converter torque welding has reached a certain scale. There are also many clutch companies in China, such as Changchun Yidong Clutch Co., Ltd., Hubei Sanhuan Clutch Co., Ltd., Zhejiang Tieliu Clutch Co., Ltd., etc., which mainly produce manual transmission clutches. The production of torque converters and clutches for domestic and foreign-funded and joint-venture automatic transmission companies is mainly based on foreign investment and joint ventures, and they are now ready-made products developed and produced abroad. In order to achieve further development of independent brands in China, it is necessary to integrate decentralized small-scale enterprises under the guidance of the state to form large-scale companies. Only by concentrating funds and technical strength can they improve their competitiveness and achieve the standards of foreign advanced enterprises.
In the aspect of automatic transmission hydraulic control system products, foreign-funded companies and joint-venture companies are also used, and foreign-developed and produced ready-made products are used. It is difficult for domestic enterprises to enter their supply chains. The main reason is that when foreign automobile companies and transmission companies develop a certain type of automatic transmission, their supporting manufacturers are also determined during the development. Domestic enterprises are difficult to become supporting suppliers in the development phase due to their own strength. When such automatic transmissions are deployed to vehicles produced by joint ventures in China, the supporting manufacturers will not re-find them. At present, the self-developed automatic transmissions in China, whose hydraulic control system technology often rely on the support of foreign technology engineering service companies, such as IAV, Ricardo, etc., when selecting matching suppliers, generally use foreign well-known supporting suppliers, such as Bosch, China, BorgWarner and other electromagnetic hydraulic valve. However, due to the small size of the target lot, the suppliers generally only provide ready-made products, or slightly change the parameters, instead of developing supporting products for the new automatic transmission. Automatic transmission hydraulic control system products as mechanical products, domestic enterprises can fully develop and produce advanced level of supporting products.
The key technology of an automatic transmission is its electronic control unit TCU and the corresponding control software. The transmission control unit TCU is similar to the engine electronic control unit ECU, the engine management system EMS, and is currently supplied by Hitachi, Continental, Bosch, Aisin, Denso and other companies in the world. Application layer software that implements various functions of the transmission such as clutch control, shift control, and shift strategy is generally developed by automatic transmission manufacturers or automotive manufacturers. Domestic domestic companies have not yet independently developed mature products in the transmission control unit TCU. The joint venture company has already developed a low-cost TCU for the Chinese market in order to adapt to lower domestic standards and increase competitiveness.
Explore effective ways to improve the overall competitiveness of <br> <br> seen that the current domestic automatic transmission market is basically dominated by foreign technology and products, domestic industrial chain has only started in gear, planetary line and other processed products, in key supporting Parts and components technology is still basically in the stage of exploration. Currently in the value of imported auto parts, the number of automatic transmission components has surpassed that of the engine. From the perspective of the domestic automatic transmission market demand, the domestic automatic transmission will undergo a period of rapid development from now until 2020, and the sales volume will increase to about three times the current level, reaching more than 10 million units. If the status quo does not change, the transmission will be zero. The import value of components will grow at a high rate. Now we must find a correct development path to improve the competitiveness of China's automatic transmission enterprises. Otherwise, after a few years, China will become a big country for automatic transmission sales rather than a manufacturing powerhouse. At present, we can proceed from the following points to find effective measures to improve the automatic transmission industry chain:
On the one hand, we must concentrate on the formation of one or two large-scale automatic transmission production enterprises, supporting a number of domestic automobile plants, forming volume benefits, and changing the current situation in which manufacturers independently develop automatic transmissions with low profitability. If it is considered that the existing automatic transmission resources of several automobile companies can be combined in the way of allocating corresponding equity, a larger-scale enterprise can be formed, and state-owned investment companies can also invest in certain shares and increase development efforts.
The second is to improve the supporting industrial chain. For mechanical products such as planetary rows, clutches, hydraulic torque converters, and hydraulic control systems in automatic transmissions, it is possible to use existing industrial parts and components companies through cooperation with automatic transmission companies. Understand the performance indicators of the supporting parts and components, test requirements, etc., and gradually develop and mass produce reliable products. For the automatic transmission control unit TCU, it is necessary to jointly develop the engine control unit EMS in conjunction with the electronics industry.
The third is to learn from the operation system of foreign large-scale automobile supporting enterprises. The domestic automatic transmission supporting enterprises should systematically start from the quality management system, design, simulation and test engineering systems, product development personnel and the training of skilled workers and technical knowledge management systems, etc. Steadily and continuously improve overall competitiveness.
Jiangyin Yuanfang Machinery Manufacture Co., Ltd , https://www.yuanfangmachine.com