May 30，The 2023 Guangxi Science and Technology Award Conference was held in Nanning，Five projects in Yuchai have won the Guangxi Science and Technology Award.，The number of award-winning projects has reached a record high.。

Among，“Key Technologies and Application Achievements of Hybrid Engine with Ultra-low Fuel Consumption and High Reliability”The project won the first prize for scientific and technological progress.，“Key Technologies and Application Achievements of Diesel Engine Intelligent Control for Complex Scenes”The project won the second prize of technological invention.，“Key Technology Development and Industrialization of Electromechanical Coupling High Efficiency Range Extender”The project won the second prize of scientific and technological progress.。

·Mao Zhengsong, Assistant General Manager of Yuchai Xinlan（Left one）、Wang Hui, Deputy Chief Engineer of Yuchai Co., Ltd.（Medium）、Sang Hailang, Chief Engineer of Intelligent Controller Development of Yuchai Co., Ltd.（Right one）Participate in the conference as a representative of scientific and technological personnel。

Won the first prize in the category of scientific and technological progress“Key Technology and Application of Hybrid Engine with Ultra-low Fuel Consumption and High Reliability”ProjectYu Yuchai and Guangxi University、Yutong Bus and other production, teaching and research units jointly completed。The project focuses on the combustion system of medium-sized hybrid special engine for commercial vehicles.、Control method、The core technologies of post-processing system and key parts design are studied.，After more than ten years.，Finally formedKey Technologies of Medium Hybrid Special Engine for Commercial Vehicle with Ultra-low Fuel Consumption and High Reliability with Independent Intellectual Property Rights。

At present，The project technology has been applied to successfully develop 26 series to meet the requirements of the third country.~China VI emission medium-sized hybrid special engine products and realize industrial application，Products applied to Yutong、Ou Hui、 King long 、Jinlu and many other mainstream bus factories，Its market share in the domestic hybrid bus market has long been the first in the industry.，Obvious economic and social benefits have been achieved.，It has played an important role in energy conservation, emission reduction and carbon reduction.。

The thermal efficiency of the medium hybrid engine for commercial vehicles proposed in the project is improved.NOxThe key technologies of emission control are in the leading international level.，The original supercharger fuel shutdown protection device has filled the gap in China.，13 national invention patents have been granted.、38 utility model patents、15 software copyrights，Formulate 2 standards，Published 11 papers，The project technology has generally reached the international advanced level.。

“Key Technologies and Applications of Diesel Engine Intelligent Control for Complex Scenes”ProjectIndependently developed by Yuchai。It is reported that，Modern diesels are“Qi、Liquid、Hot、Machine、Electricity”Highly integrated complex system，The key technology of intelligent control has been monopolized by foreign countries.。So，The project is aimed at construction machinery.、A wide range of non-road specific scenarios such as agricultural machinery and generator setsPoor operating conditions exist、The operation cycle is dispersed、Complicated change of working condition，Diesel engine control quality、Meet special requirements such as calibration and adaptability to tackle key technical problems。Model-based self-learning algorithm、Active adaptive control method、Major breakthroughs have been made in three aspects: software and hardware platform and multi-dimensional evaluation system.，The controller with independent intellectual property rights has been developed and industrialized.，Realize independent and controllable core technology，Help Yuchai take the lead in the field of off-road diesel engines。

“Key Technology Development and Industrialization of Electromechanical Coupling High Efficiency Range Extender”Project，In view of the driving range anxiety of pure electric vehicles、Safe use of electricity、Charging is difficult、The price of the whole vehicle is high、Five major industry pain points such as short battery life，Guided by the basic theory of low noise and high efficiency control system，Finally, it breaks through the key bottleneck technology of the range extender.，Overcome highly integrated、Active damping、Adaptive Control Technology，Integrated design of engine and generator is adopted.，Successfully developed low vibration noise、High-efficiency integrated range extender system product，To achieve national energy security and“Double Carbon”The goal is of great significance.。

In addition，“Achievements in R & D and Application of Key Technologies for Oil-Gas Separation of High Efficiency and Environmental Protection Engine”、“Research and Application of Key Technologies for Intelligent Measurement and Control of China VI Engine”The projects were awarded the category of technological invention respectively.、Third Prize for Scientific and Technological Progress。

The Guangxi Science and Technology Award is the highest award for scientific and technological innovation in Guangxi.，Yuchai has won the first prize for four consecutive years.，It fully demonstrates the independent innovation ability of Yuchai.，The autonomous region has attached great importance to Yuchai's technology and product research and development for many years.、High recognition of increasing investment in scientific and technological innovation in successive years。Follow up，Yuchai will continue to work hard，Continue to write a new chapter of scientific and technological innovation，Promoting high-quality development of Guangxi's economy。