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国家卓越工程师蔡蔚:保证稀土价格稳定利国利产业
Guan Cha Zhe Wang· 2025-07-17 09:57
蔡蔚表示,电驱动技术路线的长期趋势是集成化,从电机、减/变速器、控制器三个分离部件演变为二 合一加控制器、三合一,截至目前已发展到十二合一、甚至十四合一的概念也已被提出。但与此同时, 高度集成化的电驱也面临着更困难的售后维保问题,因此需采用模块化解决这个问题。 蔡蔚认为,截至目前绝大多数电动车采用集中电驱动系统,即使用电驱动化部件取代传统发动机,而分 布式电驱动系统将成为未来的趋势,但除比亚迪K9大巴的轮边电机等个别情况外,迄今为止还没有进 行大批量生产。他表示,其主要原因在于产业对机械、电气和热的控制不足,或将影响操控性和舒适 性。而根源则在于车轮重量,因而未来降低车轮重量将是一大发展方向。 在蔡蔚看来,当电动车采用分布驱动后,线控系统将成为下一个趋势,包括线控转向、线控悬架、线控 制动,不过和分布电驱类似,目前为止线控转向、线控悬架、线控制动的应用占比仍较小。 【文/观察者网 潘昱辰 编辑/高莘】7月15日,2025新能源智能汽车新质发展论坛在吉林长春东北亚国际 会议中心举行。哈尔滨理工大学终身荣誉教授、国家卓越工程师、俄罗斯工程院外籍院士蔡蔚在论坛期 间分享了汽车电驱动技术现状与发展趋势。他强调,关键零 ...
2025第四届中国(赣州)永磁电机产业创新发展大会在江西赣县区举行
Zhong Guo Xin Wen Wang· 2025-07-13 05:02
中新网赣州7月13日电 (熊锦阳)7月12日,2025第四届中国(赣州)永磁电机产业创新发展大会在江西省赣 州市赣县区举办。 近年来,赣县区(赣州高新区)聚焦钨、钴镍锂、智能装备制造等产业链,倾力打造了钨新材料及应用、 锂电新能源材料及应用等特色鲜明的产业集群。落地了10个国家级、16个省级科创平台,形成了以中国 科学院赣江创新研究院为龙头的"两院五中心"科创平台集群,构建了集基础研究、技术开发、成果转化 和检测检验等于一体的科技创新体系,为永磁电机产业发展创造了得天独厚的条件。(完) (文章来源:中国新闻网) "本次大会的召开,搭建了跨界交流、合作创新的优质平台,对共同推动我国永磁电机产业发展意义重 大。"中国工程院院士、江西理工大学校长葛世荣认为,发展永磁电机产业要进一步强化科技创新引 领,注重人才培养;要加强政产学研用融合创新,加速关键矿产领域科技成果转化,进一步拓宽江西省 关键矿产应用渠道、提升关键矿产下游产业链水平,服务江西关键矿产万亿产业创新发展。 "今年是中国(赣州)永磁电机产业创新发展大会连续举办的第四年,在各方积极支持下,会议已成为促 进我国永磁产业创新发展的品牌会议,为助力区域发展发挥了重 ...
中国稀土传喜讯,高超音速有新进展,美专家:留给美国时间不多了
Sou Hu Cai Jing· 2025-06-30 14:05
Group 1 - The core issue revolves around the strategic competition between China and the United States regarding rare earth supplies, with the U.S. making concessions on tariff trade to gain some relaxation of China's export controls on rare earths [1][9]. - China is accelerating its efforts to consolidate its leading position in the rare earth industry, achieving significant breakthroughs in hypersonic technology [3][11]. - A notable technological advancement is the development of a low-inertia, high-dynamic-response permanent magnet motor system for hypersonic vehicles, which utilizes rare earth materials to enhance performance [5][7]. Group 2 - The new permanent magnet motor, made from neodymium-iron-boron, is 40% lighter than traditional motors and can switch from stationary to full speed in 0.1 seconds, tripling dynamic response speed [7][9]. - This technology improves energy efficiency by 60% compared to traditional motors, allowing vehicles to travel further and faster, exemplified by the increase in range of the Dongfeng-17 hypersonic missile from 1,800 km to 2,500 km [7][9]. - China's control over the rare earth supply chain is significant, with 90% of global rare earth permanent magnet production capacity concentrated in China, particularly in Inner Mongolia [8][11]. Group 3 - The U.S. military's heavy reliance on Chinese rare earths has been highlighted, with 80% of the magnetic components in its intercontinental missiles sourced from China, exposing vulnerabilities in its supply chain [9][13]. - China's strategic response includes reinforcing export controls and accelerating the conversion of rare earth technologies, with 53 related technological achievements expected in 2024 [11][12]. - The U.S. faces a strategic dilemma as it attempts to rebuild its domestic rare earth supply chain, which could take at least 10 years and may only meet 30% of its needs by 2030, despite significant investment [13][15]. Group 4 - The technological gap in hypersonic capabilities is widening, with China reportedly leading the U.S. by at least five years in hypersonic glide vehicle technology, and this gap is increasing at a rate of 20% per year [15][17]. - The U.S. attempts to support its domestic rare earth industry through legislation have been hampered by environmental regulations and high costs, delaying production timelines [17][18]. - The outcome of this strategic competition is beginning to take shape, with China's advancements in rare earth technology and strategic control potentially reshaping the global military industrial landscape [17][20].