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车门把手实用安全比新奇独特更重要
Jing Ji Ri Bao· 2025-10-03 22:06
找不到门把手,上不来也下不去……打车遇上隐藏式门把手的乘客一定经历过"不会开车门"的尴尬时 刻。日前,工业和信息化部就《汽车车门把手安全技术要求》强制性国家标准公开征求意见。该标准有 望全面规范车门把手产品性能,提升车门把手产品安全水平。 随着汽车电动化和智能化的快速发展,近年来隐藏式车门把手凭借美观、科技感强等优势被广泛应用, 市场上车门把手产品的操作方式和结构型式日趋多样。从半隐藏式到外伸隐藏式、内缩隐藏式、手动按 压隐藏式,甚至还有全隐藏无门把手式,"100款新能源汽车,就有100种开门方式"。车企设计师们似乎 力求在车门把手上"卷"出新高度。 事实上,隐藏式门把手原本用在赛车上,是用来降低风阻系数。比如,1952年奔驰300SL就采用了这样 的设计。赛车追求速度,对风阻系数要求高,采用这种设计可以理解。2012年特斯拉Model S刚亮相 时,自动伸缩的门把手给整个汽车界带来巨大震撼。在那个绝大多数汽车还使用传统外露式门把手的年 代,隐藏式门把手不仅使车辆外观更加简洁、更具备流线型美感,还能降低风阻,提高车辆能效表现, 因而成为众多新能源车企彰显产品"高级感"的重要设计。 同时,明确了车门把手的释放方 ...
车企为何集体“隐藏”门把手?
第一财经· 2025-05-27 02:18
Core Viewpoint - The article discusses the recent move by the Ministry of Industry and Information Technology (MIIT) in China to solicit opinions on the mandatory national standards for automotive door handle safety, highlighting the growing importance of safety regulations in the rapidly evolving electric vehicle (EV) market [3][10]. Group 1: Historical Context and Design Evolution - The hidden door handle design is not exclusive to EVs, with its origins tracing back to the 1952 Mercedes-Benz 300SL, which featured a unique gullwing door design [4]. - Tesla adopted hidden door handles starting with its first car, the Roadster, in 2008, initially to emphasize a futuristic design and luxury positioning, but later continued this design for brand recognition in mass-market models like Model 3 and Model Y [4][5]. Group 2: Economic and Performance Benefits - Hidden door handles can reduce the drag coefficient by up to 12%, which is significant for improving energy efficiency and extending the driving range of EVs, especially as battery costs account for nearly 40% of total vehicle costs [5]. - The cost of a hidden door handle is approximately 100 yuan, while the equivalent increase in battery costs to achieve the same range improvement could be several hundred to over a thousand yuan, making hidden handles a more economical choice [5][6]. Group 3: Market Trends and Consumer Preferences - Not all EVs utilize hidden door handles; for example, BYD's lower-priced models still use traditional mechanical handles, indicating a strategic choice based on market segment and cost considerations [6][8]. - As battery technology improves, the need for minor range increases (5-10 km) becomes less critical, revealing the drawbacks of hidden handles, such as their complexity and potential durability issues [6][8]. Group 4: Safety and Regulatory Implications - The MIIT's proposed regulations aim to address safety concerns related to hidden door handles, which have been criticized for their lack of redundancy in safety features, particularly in scenarios where power is lost [9][10]. - The previous standards established in 2014 did not adequately cover the unique challenges posed by hidden door handles, necessitating updated regulations to enhance safety and reliability [9][10]. Group 5: Future Considerations - As the market for EVs matures, the novelty of hidden door handles as a distinguishing feature may diminish, prompting manufacturers to reassess their value and practicality in consumer preferences [11]. - The evolving regulatory landscape may lead to increased costs for hidden door handles, compelling manufacturers to evaluate their design choices in light of safety, cost, and consumer demand [10][11].
隐藏式门把手被判死刑?工信部再下重锤!
电动车公社· 2025-05-10 16:58
Core Viewpoint - The article discusses the recent regulatory actions by the Ministry of Industry and Information Technology (MIIT) regarding the safety standards for hidden door handles in vehicles, highlighting the safety risks associated with their design and the need for stricter regulations in the automotive industry [1][38]. Summary by Sections 1. Regulatory Actions and Industry Response - On May 8, MIIT publicly solicited opinions on mandatory national standards for automotive door handles, indicating existing safety risks and the need for industry reform [1][38]. - The introduction of these standards aims to address the safety concerns surrounding hidden door handles, which have been linked to various incidents and accidents [38]. 2. Historical Context and Design Evolution - The hidden door handle design gained popularity in the 1950s with the Mercedes 300SL, which utilized it to reduce aerodynamic drag and enhance speed [5][12]. - The trend continued with the rise of electric vehicles, where companies like Tesla adopted hidden handles as a symbol of modern technology, despite the potential safety issues they pose [15][32]. 3. Safety Concerns and Technical Challenges - Hidden door handles are criticized for their reliance on electronic mechanisms, which can fail in emergencies, particularly during collisions or power failures [30][32]. - The article cites incidents where hidden handles hindered rescue efforts, emphasizing the need for mechanical redundancy in their design [25][30]. 4. Industry Adoption and Trade-offs - Despite the safety risks, many automakers continue to use hidden door handles to improve vehicle aerodynamics, which can enhance electric vehicle range by approximately 0.57% [32][34]. - The trade-off between safety and performance raises questions about the industry's priorities and the acceptance of potential risks for marginal gains in efficiency [32][34]. 5. Future Standards and Industry Direction - The MIIT's proposed standards aim to ensure that all new vehicles meet safety requirements, addressing issues such as strength, control logic, and emergency operation of door handles [38][39]. - The article stresses that safety must be the primary consideration in automotive design, especially as the industry moves towards greater electrification and automation [41][49].