小米公布造车“成绩单”,雷军念了足足3小时原创2023-12-29 11:06·荔枝新闻荔枝新闻讯 记者/王晟12月28日下午,在北京举行的小米汽车技术发布会上,雷军介绍了小米首款汽车产物SU 7,展示了小米下场造车以来的相关技术积累。发布会当日,距离小米官宣研发汽车,已经过去了1003天。雷军长达3个小时的“学习成绩汇报”,就是从一家新下场的公司如何学习掌握最基础的造车技术说起。造车,小米学会了啥首先是新能源汽车最核心的三电领域:电机、电池、电控。雷军公布了小米三款自主研发的电机,前两款V6、V6s分别适用于400V和800V电压平台,将率先装配在量产车型上。还有一款超级电机V8s,转速高达每分钟27200转,号称业内转速最高。并且超高强度硅钢、双向全油冷散热技术、优秀的电控,让该型号电机可以更加稳定高效。在电池技术领域,小米一方面是学习主流的电池集成方式(CTB),用更小的体积储备更多的电量,另一方面还通过与宁德时代合作提升电池稳定性和安全性,比如通过电池云监控和电芯倒置技术,以便及时发现电池异常,确保紧急情况下乘员舱的安全。对于这个冬季业界和用户最关心的电池热管理、低温续航表现等关键问题,雷军表示,小米研发了三热源逐级加热技术,提高低温续航、加快低温时充电、空调升温的速度。在车辆智能制造方面,小米同样采用目前新能源车行业最先进的整体压铸等车身制造工艺。雷军介绍了全栈自研的超级压铸机——压力高达9100吨,占地面积相当于两个篮球场,可以整体压铸制造车辆的后地板等大型部件。身高1.81米的雷军与该压铸机的对比自特斯拉首创整体压铸生产工艺以来,这一技术已被新能源车行业普遍采用。同时,为了减轻车身重量,保证纯电续航里程,新能源车又大量采用重量轻但延展性差的铝制部件,导致车辆碰擦后的维修成本大幅上升。雷军特意提到了小米汽车的应对办法:在一体化压铸的地板后部,加上了三段式防撞设计。如果车辆被追尾,该设计可以溃缩吸能,减轻对车辆整体结构的伤害,通过“舍小保大”,让事故维修不那么过于昂贵。智能化,小米能玩出什么新花样中国新能源车产业的异军突起,智能化座舱和智能驾驶体验功不可没。雷军介绍起一部分时非常自豪:“智能化,那可是我们的专业!”智能座舱方面,依托最新的骁龙8295芯片,小米选择了16.1英寸的中控屏,以便于手机、平板电脑无缝衔接,丝滑流畅地使用更多应用。前排两个座位后方还可以适配小米平板电脑,与车机系统一道实现多屏联动,既能影音娱乐还可实现坐在后排也能调节座椅等功能。用户拥有的米家设备更是可以在车里同账号无密码无缝衔接使用。荔枝新闻注意到:在智能座舱上,小米有两处独创设计。一是与小米家电等生态的融合,比如中控屏四周布置了磁性吸附点,可以外挂诸如实体按键等原厂和第三方配件;储物空间可以安装香薰机等设备。雷军说,未来通过向第三方开放接口,还可以设计出各种与车辆智能互联的产物,比如智能儿童安全座椅,为移动的车辆空间拓展出更多具有想象力的产物和服务。二是小米汽车并非如某些车企那样圈定自家的封闭生态,雷军特意强调:“哪怕用户不是小米手机等产物的用户也能流畅地使用小米汽车。”比如用苹果手机和平板电脑的用户同样可以体验智能座舱的大部分功能。谈起智能驾驶,雷军调侃:“小米起步晚,但是晚有晚的好处,起点高啊。”据介绍,小米底层自研的团队有1000多人,200多辆测试车,已经跑出了超过1000万公里的测试里程。在小米智能驾驶的诸多技术特点中,有一项是强调“变焦感知”,即不同场景实现或大面积或精细化地环境感知。小米汽车除了装备两颗英伟达Orin X高算力芯片、高精度激光雷达,算法上也更接近人类老司机的思维模式。发布会现场演示中,小米SU 7汽车智能化的“代客泊车”功能,可以通过先估测停车位,然后在倒车过程中不断精细修正的策略,将接近两米宽的汽车,自动精确停入只有2.05米宽的机械式停车位。荔枝新闻了解到,此前同类新能源汽车的自动泊车功能,都需要比车辆宽大得多的停车空间。小米SU 7正式亮相 但价格依然是个迷发布会的最后,两台小米SU 7轿车通过智能驾驶自动开上舞台,正式亮相。这台雷军口中的“C级高性能生态科技轿车”,据说经过设计团队通过在风洞中不断实验,反复调整模型,最终实现了全球轿车最低风阻系数Cd 0.195——通常,优秀的跑车风阻系数也在Cd 0.2以上。该车的内外设计非常注重驾驶体验,做到了2.78s零百加速,265km/h最高时速,特别是无限自由度自定义驾驶模式,向用户开放了对车辆驾驶性能、行驶表现的定义权。小米SU 7还提供了较大的乘坐和行李空间,甚至车辆前备箱容积也号称是国产新能源车之最。按照雷军的话说,车辆空间设计要保证“穿衣显瘦、脱衣有肉”。然而,长达3小时的介绍,雷军却完全没有提及小米首款汽车的售价,连预售价格范围都没有提及。雷军只是提到,网友们喊出的“9万9交个朋友”、“14万9开着走”的价格是不可能的。“光是与宁德时代联合开发的100度驱动电池,成本就超过了十多万,”他说:“小米汽车初期的定价确实有点贵,但一定让大家觉得贵的有道理。”看来,尽管雷军反复强调小米造车是要造出用户“梦想之车”,但能不能像其它小米产物那样成为大部分用户买得起的车,还很难说。(图片来源:小米汽车)
2024年12月18日,文触编辑:漫步云端
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这(窜丑别)样(驰补苍驳)自(窜颈)己(闯颈)就(闯颈耻)失(厂丑颈)去(蚕耻)了(尝颈补辞)主(窜丑耻)动(顿辞苍驳)权(蚕耻补苍),用(驰辞苍驳)钱(蚕颈补苍)的(顿别)时(厂丑颈)候(贬辞耻),自(窜颈)己(闯颈)就(闯颈耻)成(颁丑别苍驳)了(尝颈补辞)被(叠别颈)动(顿辞苍驳)方(贵补苍驳)。钱(蚕颈补苍)这(窜丑别)个(骋别)东(顿辞苍驳)西(齿颈),放(贵补苍驳)在(窜补颈)谁(厂丑耻颈)手(厂丑辞耻)里(尝颈),都(顿耻)不(叠耻)如(搁耻)握(奥辞)在(窜补颈)自(窜颈)己(闯颈)手(厂丑辞耻)里(尝颈)靠(碍补辞)谱(笔耻)!是(厂丑颈)想(齿颈补苍驳)用(驰辞苍驳)就(闯颈耻)用(驰辞苍驳),想(齿颈补苍驳)花(贬耻补)就(闯颈耻)花(贬耻补)。
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