A few days ago, Ningbo Huabiao Machinery Manufacturing Co., Ltd. received the "Science and Technology Achievement Registration Certificate of the Ministry of Industry and Information Technology" from the Ministry of Industry and Information Technology, and its "Pure Electric Time-sharing Synchronous Four Driving Force Assembly" project was rated as "International Advanced" scientific and technological achievements. "This evaluation of scientific and technological achievements has increased our visibility, and many car companies have come to seek cooperation."

The reporter learned that the "Pure Electric Time-sharing Synchronous Four-Drive Assembly" independently developed by the company is the first product of this type of research project in the world, filling the gap in the field of pure electric vehicle integration at home and abroad. Recognized by the Ministry of Industry and Information Technology as an "international advanced" scientific and technological achievement.

At present, the four-wheel drive function of pure electric vehicles on the market mostly adopts the method of setting a motor on the front and rear axles, but there are problems such as long design software development cycle and high cost, and it is difficult to realize the synchronization of dual motors. The project can flexibly switch between two-wheel drive and four-wheel drive mode according to driving needs, improve power performance, reduce vehicle energy consumption, increase cruising range, and fully cope with complex road conditions.

"From concept to reality, from zero to one, we spent 3 years." Miao Xin, general manager of Huabiao Machinery, told reporters that in September 2017, the company established a new energy vehicle powertrain research and development center to focus on promoting the project. Development process. With a unique design concept, the project uses two motors with the same speed and different power to be coupled into an all-in-one machine via a two-way automatic clutch to achieve a time-sharing four-drive output mode.

In the past three years, whenever the R&D personnel have a bright light, no matter where they are, they will immediately upload their ideas to the team work group, and strive to start the experiment as quickly as possible. After continuous research and improvement, the product of the project has been updated from one generation to three generations, with more complete functions and more stable operation. Up to now, the project has declared 16 invention patents and 12 utility patents; formulated and promulgated product enterprise standards, and passed the mandatory inspection by the National Car Quality Inspection Center. At the same time, it has been recognized and supported by authoritative experts such as the Chinese Academy of Sciences, Tsinghua University, and China Automobile Association.

"In the process of research and development, the most severe challenge is the problem of the connection device between the clutch and the dual motor." Miao Xin told reporters that since there is no relevant information to refer to, the researchers started to explore the details and developed three clutches for repeated trials. And match, and finally achieve the stability and applicability of the vehicle. The problems of instability of clutch contact, easy skidding and loud starting noise have also been overcome in repeated research.

At present, the product has successfully achieved the installation and road test of JAC Shuailing pickups and Cherokee models. According to existing data, it has superior four-wheel synchronous drive performance and characteristics, and can be widely used in pure electric high-end SUVs and passenger cars. , Pickup trucks, police patrol cars, logistics vehicles and other vehicle manufacturing industries.

"The recognition by the Ministry of Industry and Information Technology is an authoritative evaluation of powertrain projects, but it is just a good start for enterprises." Miao Xin said. At present, the company has established a joint research group with Tsinghua University and signed a strategic agreement with Jianghuai Automobile Group. At the same time, the company will continue to select partners to jointly transform this international advanced scientific and technological achievement into actual productivity, and launch the first integrated four-drive vehicle in the field of pure electric vehicles.