In recent years, the rapid development of China's auto industry has become the world's largest automotive manufacturing industry. As one of the core competitiveness of the auto industry, new energy automobile electronic technology is increasingly being taken seriously by various vehicle companies, and it also provides new development momentum and opportunities for the transformation and upgrading of China's auto industry. Breaking through the key technologies of new energy automobile electronics will have important strategic significance in breaking the monopoly of foreign suppliers in the core components of new energy vehicles and enhancing the competitiveness of China's self-owned brands.
In order to solve the technical bottleneck and support the development of the new energy automotive industry, the Ministry of Industry and Information Technology started with key technologies for electronic control, and set up the “New Energy Vehicle Electronic Control System R&D and Industrialization†project through the Electronic Development Fund. 7 companies such as Co., Ltd. bear the total investment of nearly 200 million yuan. Through the combination of production, research and application, and joint research, the key technologies of the powertrain control system, motor control system, and battery management system have been broken through, and corresponding products have been developed. , to achieve positive results, and the formation of industrialization capabilities.
Breakthrough in key common technologies
The “New Energy Vehicle Electronic Control System R&D and Industrialization†project has achieved breakthroughs in powertrain control technology, motor control technology, and battery management technology, and has obtained a number of research and development patents and achievements. Up to now, the project has applied for 41 patents, including 26 invention patents, applied for 4 software copyrights; published monographs, more than 18 papers, presided over revision of 1 national standard, and formulated 1 industrial standard.
In the powertrain control system, a low-power hardware design and an efficient energy management strategy are adopted. Through the wake-up technology, only the network monitoring mechanism is maintained in the parking state; in the active state, the accelerator pedal, the brake pedal, the vehicle speed, and the current gear are used. Position and other signal information, and refer to the working state of the engine, AMT, motor, battery, ABS, according to the preset energy management strategy for the engine, motor torque, speed control, so that the vehicle is in an efficient mode of operation, improve energy efficiency. Through the implementation of the project, it broke through the core technology of the vehicle control algorithm and has the basic design capabilities to develop a variety of new energy controllers.
The motor control system has broken through the miniaturized multi-function all-digital control circuit, a new low-inductance, high-frequency high-current membrane capacitor, high-temperature, high heat transfer coefficient heat sink and other key technologies, completed a prototype of the high-density drive motor controller prototype and Functional performance test.
In the aspect of power battery management system, the research and development of new energy automotive electronic technology and wireless network communication technology, research and development of intelligent new energy vehicle battery management system with wireless network communication remote diagnosis function, for the remaining battery estimation, energy recovery, balanced charge and discharge 3 Breakthroughs were made in the major technical difficulties. While realizing the localization of China's intelligent new energy vehicle battery management system, the project's product integration and intelligence were realized.
Industrialization achieved significant results
The implementation of the project has improved the middle reaches of the entire new energy automotive industrial chain, such as electronic control systems and vehicle products, and has also driven the development of upstream industries such as IC manufacturing and materials.
The development of EOL and diagnostic instruments has also improved the downstream of the new energy automotive industrial chain, such as sales services, after-sales, and supporting facilities, to promote the sound and healthy development of China in the field of new energy vehicles.
During the project R&D process, each project took on a fruitful result in terms of intellectual property reserves and talent team construction. The company's technological innovation, product R&D, and production management levels and efficiency have been greatly enhanced, becoming the backbone of China's new energy automotive electronics industry.
The project has formed a variety of products on the basis of technological breakthroughs, and some products have been tested and assembled in small batch production, forming a domestic matching capability. Up to now, the accumulated sales revenue has exceeded RMB 430 million, and economic and social benefits have been realized.
The FAW-developed vehicle controller (HCU) accumulatively installed 522 vehicles on the FAW Jiefang brand hybrid bus. The bus lines in Dalian, Changchun, Kunming, Hohhot, and other cities were used as demonstration vehicles. The completed output value was 27.5 million yuan; The powertrain controller for pure electric passenger cars and the powertrain controller for hybrid buses developed by the independent intellectual property rights have been matched with the entire vehicle and completed the trial assembly, test verification, and mass application of the entire vehicle. 20000 sets of powertrain controller production capacity. From 2011 to 2012, a total of 1,500 powertrain controllers were sold, with a sales income of 30 million yuan and a net profit of 4.5 million yuan; Shanghai Electric Drive Co., Ltd. has formed three series of multi-standard motor controllers with serialized power. , Completed one full-automatic circuit board chip production line and one high-density motor controller assembly line, and the assembly line production capacity reached more than 50,000 sets, accumulatively achieving high-density motor and motor controller sales of more than 20,000 sets, and accumulated sales revenue Nearly 370 million yuan, effectively safeguarded the smooth implementation of the national "Ten Thousand Vehicles" new energy vehicle demonstration and operation; the related system developed by Actech has realized the localization of China's intelligent new energy vehicle battery management system.
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