For a long time, in the field of automatic transmissions, foreign brands have always occupied a dominant position, and self-owned branded parts and components companies have made breakthroughs. This is a pain point for the development and expansion of China's auto industry. However, in the fast-growing hybrid bus market, the view that “auto transmission is less autonomous than foreign investment” is no longer applicable.


“In terms of the hybrid system and automatic transmission of new energy buses, the market share of independent brands is already in a dominant position.” Recently, Li Shengqi, secretary-general of the China Automotive Automatic Transmission Innovation Union, said in an interview with a reporter from China Auto News. In the current state of the industry where the core technology of automatic transmissions is missing, the hybrid passenger car transmission has achieved breakthroughs, which is worth thinking and learning from the entire automotive industry.

■ From the go-ahead to catch up <br> <br> six or seven years ago, hybrid passenger car market has just started. “Before and after 2010, the domestic new energy passenger vehicle hybrid control system was only done by Eaton of the United States. At that time, Eaton’s promotion of the 6-speed AMT hybrid system dominated the market and was promoted in China.” said Li Shengqi, an autonomous passenger vehicle hybrid control system. Vendors began to catch up slowly, and by 2013 they will achieve a market share with foreign capital. So far, the self-owned brand has achieved a total overtaking, the market share is the highest, and the competitive landscape of the passenger car hybrid system and the automatic transmission field has undergone major changes.


In recent years, with the promotion of energy-saving and emission-reduction policies, the rapid development of the hybrid bus market has provided a good opportunity for the development of supporting parts and components enterprises. In 2015, the sales of hybrid buses of many bus companies increased significantly. Most of the top companies in sales volume achieved double-digit or even 100% year-on-year increases. Li Shengqi analyzed: “With the expansion of the new energy passenger car market, China has rapidly grown from a number of suppliers of autonomous hybrid control systems. The installation rate of automatic transmissions for hybrid buses is also on the rise, and the technical route for installing AMT automatic transmissions is The main and autonomous coach hybrid control system suppliers and AMT transmission companies have great room for development."

It is understood that the Suzhou Green Control Transmission Technology Co., Ltd. established at the end of 2011 focused on the layout of new energy passenger vehicle hybrid powertrain assemblies and automatic transmissions, and has grown to become a leader in new energy passenger vehicle hybrid power systems. Assistant Manager of Suzhou Green Control Transmission Technology Co., Ltd. Cao Jinglian stated that Suzhou Lucent's passenger car hybrid power system sold more than 5,000 units in 2015, an increase of 2.5 times year-on-year and a market share of approximately 30%, ranking first in China. Its hybrid system is not only The domestic new energy bus company supporting, but also sold to Spain, Australia and other countries, praised by users around.

Hybrid automatic transmission companies have also developed rapidly. Tianjin Zhongde Transmission Co., Ltd. is a major supplier of new energy power system companies and new energy passenger vehicle manufacturing plants such as Suzhou Green Control. Its products include pure electric vehicles, hybrid buses and automatic transmissions for logistics vehicles. He Junzheng, general manager of Tianjin Zhongde Transmission Co., Ltd. introduced that the current market share of new energy passenger vehicles adopting the Sino-German automatic transmission program has exceeded 65%.

â–  Breakthrough core technology

From independent research and development to breakthrough in core technologies and to market recognition, it is not easy for autonomous hybrid systems and transmission suppliers to fight. Cao Jingxi stated that the Suzhou Green Control R&D team has gone through 10 years of research accumulation and industrialization. “Our new energy bus hybrid powertrain assembly is the first coaxial parallel hybrid system based on AMT technology, breaking foreign investment. Brand's technology monopoly." Cao Jingxi said.

Compared with the pure electric passenger car transmission, the control strategy of the hybrid transmission is more complicated. He Junzheng said that hybrid transmissions must be coupled with the drive motor, but also with the engine connection, so the transmission to meet the multi-terminal input, transmission power line diversification, and at the same time in order to make the engine in the work area, the number of transmission gear should be more some.


From the perspective of the domestic market, the hybrid system based on the AMT automatic transmission technology is one of the mainstream routes of hybrid passenger cars. Breaking through the AMT transmission technology is also the basis for independent brands to occupy the market. "AMT transmission is the strength of its own brand. Now it has been mass-produced." Li Shengqi said that AMT products have the characteristics of high transmission efficiency, perfect manufacturing process and relatively mature selection control software, which is especially suitable for the needs of new energy buses.

Cao Jingkai introduced that the green-controlled hybrid power technology line has a coaxial parallel configuration and a hybrid hybrid configuration. The hybrid system uses the two motors together to make the vehicle start and shift smoothly. Both motors can perform braking energy recovery to reduce fuel consumption. In addition, the hybrid system has a variety of drive modes to achieve better dynamics and economy through different drive modes.

â–  wins in price and service <br> <br> with independent hybrid progress and industrial control systems and automatic transmission technology, bus procurement costs have fallen significantly.

An insider of a domestic mixed-control system supplier told the reporter: “In the past, when the independent parts and components enterprises had not yet broken through the AMT transmission and hybrid integration technology, a foreign hybrid branded hybrid system was very expensive and almost occupied. In the entire market, with the breakthrough of independent brand technology, the market share of foreign brands has been declining year by year and dropped to about 10% in 2015. At present, the price of autonomous hybrid systems is about one-third of that of foreign investment, and the performance is similar. As a result, bus companies will inevitably be more willing to cooperate with independent brand suppliers."

Good products and after-sales service are also one of the reasons for the auto parts companies to win. Cao Jinglian believes that domestic companies have a deeper understanding of China's road conditions and driving environment, and have more targeted product development and can quickly respond to the needs of domestic passenger car plants. In addition, the after-sales service of independent component companies has always been praised by customers, and the maintenance and repair are fast, saving time for customers.

“In the future, the share of autonomous parts and components companies in the passenger car hybrid system and the automatic transmission market will continue to rise.” Li Shengqi believes that in the future there may be new companies coming from behind, so that there will be orderly competition among autonomous enterprises, and more It will benefit the healthy development of the passenger car hybrid technology industry.



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