本文从四个阶段系统介绍了潍柴20年发展走过的自主创新历程；结合商用车动力系统核心技术研发，阐述了对商用车动力系统创新发展的理解和典型经验；从高效低排放内燃机、新能源和智能网联技术等方面，对商用车未来发展进行了展望，分享了潍柴在传统能源、新能源方面的未来规划和做法。

This paper introduces the four stages of independent innovation in Weichai’s 20 years of development. Combined with the research and development of core technologies for the commercial vehicle powertrain system, this paper expounds the understandings of and typical experiences in the innovative development of commercial vehicle powertrain system. It also provides an outlook for the future development of commercial vehicles from the aspects of high-efficiency low-emission internal combustion engines, new energy application, and intelligent connected technology, and shares the future planning and practices of Weichai in the traditional energy and new energy business area.