Analysis on the Development Prospect of Hybrid Power in Construction Machinery

Zhang Daqing, vice president of the Research Institute of Shanhe Intelligent Machinery Co., Ltd.: The development of hybrid engineering machinery will help reduce the gap with developed countries. Most of the core technologies of domestic construction machinery are owned by some supporting enterprises abroad. Most of the key components and systems are imported from abroad. The main reason is that foreign countries have accumulated decades or even hundreds of years of research on relevant components and technologies, and most domestic companies have started to work in this area since the 1990s or even later. The gap is not a short time. Can eliminate inside. As an emerging technology, hybrid power plays an important role in the development of construction machinery. The most important thing is that domestic research on this technology is not much later than abroad, and from a current point of view, the technological gap is relatively small, it can be said that they are on the same starting line. Therefore, this is a rare opportunity for domestic construction machinery manufacturers and an opportunity to compete with foreign counterparts on the same stage. Therefore, seizing the opportunity for the development of hybrid power is of great significance to narrowing the gap between foreign construction machinery products and improving the competitiveness of its own products.

The supply of key components is not very mature, and some of the major domestic hybrid components such as high-efficiency motors and energy storage components suppliers are engaged in the development of hybrid vehicles, and the products are still in the small batch production stage, and Basically, there is no production experience of the construction machinery parts.

The environmental friendliness of hybrid power is in contradiction with its high manufacturing cost, which will greatly hinder the promotion and application of hybrid power. The price of a hybrid excavator like that of a Japanese company is only about 10% higher than that of a hydraulic excavator of the same model in the Chinese market. Because the company's strength is relatively strong, it may be adopted in order to promote the market and use this strategy, and even sales at parity, this is a market strategy issue.

Tang Xiangyang, general manager of Yuchai Heavy Industry (Changzhou) Co., Ltd.: With regard to the use of hybrid technology in construction machinery, especially on excavators, the main method currently adopted is the hybrid form of oil and electricity, but away from mass production and sales. It will take quite a while. Hydraulic hybrid power is still in the research and development stage of construction machinery, and it is far from marketization. In particular, the mature technology of related parts and the cost of mass production are issues that need to be considered.

Cao Donghui, President of the Sanyueji Research Institute: From the perspective of enterprises, the more important is the industrialization of technology, the market has demand, and the market can accept it. Then how much money the company spends on it will no matter how much it takes, whether it is oil and electricity Fluid power. With regard to hybrid excavators, Sany Heavy Machinery has been developing, and hybrid hybrid excavators have been introduced on the market a few years ago.