图 IC 话题主持：本报记者 左妍 孩子们的寒假到来，你带着全家一起自驾游。然而，就在车子启动的那一刻，你的肚子却开始翻腾，脸 色变得苍白，话也讲不出来，甚至开始疯狂找塑料袋……这种令人痛苦的感觉，很多人都经历过，没 错，晕车了。如今，电动轿车越来越多，被晕车困扰的人群似乎也随之增多，有什么办法能缓解难受？ 内耳里的"传感器"失灵了 门诊中常能听到患者的诸多疑问： "一上电车就头晕、冒冷汗、想吐，是不是我太敏感了？" "可是我坐油车就不会晕车，这是为什么？" 想要解决问题，先要弄清晕车的医学原理。晕车在医学上被称为晕动症，是由持续或频繁的加速度变化 引发的不适症状，典型表现为头晕、恶心呕吐、胃肠不适，还会伴随冷汗、面色苍白、心悸、体温波动 等自主神经反应。晕动症常出现在乘坐汽车、轮船、飞机等交通工具时，乘车时看手机、看电影，或是 使用VR设备，都会让晕动症更易发作。 人体能感知车辆的速度变化，全靠藏在内耳深处的前庭系统。这个由三对半规管和球囊、椭圆囊两个耳 石器组成的结构，是人体最精密的"加速度传感器"：耳石器负责感知前后、左右的直线加速，半规管则 捕捉旋转、晃动的角加速度。日常生活中，我们依靠前庭、视觉和本 ...

are 晕车，是许多乘客的"噩梦"，哪怕是一辆新车，也会有人晕车。 "我对电动车晕车，特别是坐在后排的时候……"某公司白领李女士对于这样的不良体验记忆犹新。而这样的情况，其实很多人都存在，而且不分是电动 车还是燃油车，不分前排后排，对他们而言，乘车无异于一种"受罪"。调研表明，有近40%的乘车者有过类似经历。 对此，多方亟待"根治"这一问题，车企也在积极行动，从汽车本身做文章，寻根溯源，"对症下药"。 多种技术"殊途同归" 面对这一苦恼，世界各地的汽车企业、研究机构都在不遗余力想办法、做探索。 在美国，密歇根大学研发的PREACT技术吸引了人们的视线。它借助车载传感器，实时捕捉车辆的速度、加速度、转向角度等关键信息，通过复杂而精 妙的算法，构建出高精度的运动预测模型。这个模型就像是一个"超级大脑"，能够提前0.5秒预判车辆即将发生的俯仰、侧倾等动作。 当车辆即将左转时，座椅会迅速做出反应，同步向右倾斜，巧妙地模拟了人体自然重心调整的过程，让乘客的视觉与前庭感知保持一致。就好比在现实 生活中，当我们身体发生倾斜时，眼睛会自然地调整视线，以保持平衡。PREACT技术通过座椅的倾斜，让乘客在车内也能感受到这种自然的 ...

Core Viewpoint - The article discusses the discomfort experienced by passengers in electric vehicles (EVs), particularly the issue of motion sickness, which has become a significant concern as EVs replace traditional vehicles in daily life. The incident involving actress Dong Xuan and her husband, who experienced motion sickness while riding in a sponsored EV, sparked widespread discussion on social media about the comfort levels of electric cars [3][4][6]. Summary by Sections Industry Concerns - The incident highlighted a growing industry concern: as EVs become more common, the issue of motion sickness must be addressed, with 38% of EV users reporting discomfort, particularly among family passengers [7][8]. Causes of Motion Sickness - Motion sickness is caused by a mismatch of sensory information, where the inner ear perceives motion that the eyes do not see, leading to confusion in the brain [11]. - EVs are believed to exacerbate this issue due to their rapid acceleration (0 to 100 km/h in 3-5 seconds compared to 8-10 seconds for traditional vehicles) and aggressive regenerative braking systems, which can create sudden deceleration sensations [12][13][15]. - The lack of auditory and vibrational cues in EVs, which are present in traditional vehicles, contributes to the unexpected sensations that trigger motion sickness [15][28]. Solutions and Innovations - Various automakers are developing technologies to mitigate motion sickness, with a focus on improving vehicle dynamics and passenger comfort. For instance, Nissan's N7 features a "smart anti-motion sickness system" that reportedly reduces motion sickness by 52% [19][20]. - Honda's P7 claims to reduce motion sickness probability by 72% through advanced suspension systems that filter out vibrations [23]. - Other brands, such as Xpeng and Xiaomi, are also introducing specialized modes aimed at reducing discomfort during rides, with reported effectiveness in lowering motion sickness rates by 40% and 51%, respectively [25][26]. Industry Trends - The automotive industry is shifting towards a focus on passenger comfort, with a potential future standard for evaluating vehicles based on their "motion sickness index" [15][28]. - The competition is expected to evolve from merely enhancing technical specifications to prioritizing user experience and comfort through innovative design and engineering solutions [32].