潍柴动力：公司旗下陕重汽重卡目前已实现封闭区域L4级组合驾驶辅助技术

Group 1 - The core viewpoint of the article is that Weichai Power has achieved L4 level combination driving assistance technology for its heavy trucks and has entered the commercialization phase [1] - The company is planning to mass-produce solid-state batteries, with specific timelines for production to be announced in future official releases [1]