马斯克博客公布Hyperloop的alpha版本设计PDF
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satori♋ 楼主
2013年08月13日 12点08分 1
level 7
satori♋ 楼主
http://www.teslamotors.com/blog/hyperloop
博客原文地址
下面有个 Hyperloop-Alpha.pdf 有兴趣的点击下载
2013年08月13日 12点08分 3
level 7
satori♋ 楼主
When the California “high speed” rail was approved, I was quite disappointed, as I know many others were too. How could it be that the home of Silicon Valley and JPL – doing incredible things like indexing all the world’s knowledge and putting rovers on Mars – would build a bullet train that is both one of the most expensive per mile and one of the slowest in the world? Note, I am hedging my statement slightly by saying “one of”. The head of the California high speed rail project called me to complain that it wasn’t the very slowest bullet train nor the very most expensive per mile.
The underlying motive for a statewide mass transit system is a good one. It would be great to have an alternative to flying or driving, but obviously only if it is actually better than flying or driving. The train in question would be both slower, more expensive to operate (if unsubsidized) and less safe by two orders of magnitude than flying, so why would anyone use it?
If we are to make a massive investment in a new transportation system, then the return should by rights be equally massive. Compared to the alternatives, it should ideally be:
Safer
Faster
Lower cost
More convenient
Immune to weather
Sustainably self-powering
Resistant to Earthquakes
Not disruptive to those along the route
Is there truly a new mode of transport – a fifth mode after planes, trains, cars and boats – that meets those criteria and is practical to implement? Many ideas for a system with most of those properties have been proposed and should be acknowledged, reaching as far back as Robert Goddard’s to proposals in recent decades by the Rand Corporation and ET3.
Unfortunately, none of these have panned out. As things stand today, there is not even a short distance demonstration system operating in test pilot mode anywhere in the world, let alone something that is robust enough for public transit. They all possess, it would seem, one or more fatal flaws that prevent them from coming to fruition.
Constraining the Problem
The Hyperloop (or something similar) is, in my opinion, the right solution for the specific case of high traffic city pairs that are less than about 1500 km or 900 miles apart. Around that inflection point, I suspect that supersonic air travel ends up being faster and cheaper. With a high enough altitude and the right geometry, the sonic boom noise on the ground would be no louder than current airliners, so that isn’t a showstopper. Also, a quiet supersonic plane immediately solves every long distance city pair without the need for a vast new worldwide infrastructure.
However, for a sub several hundred mile journey, having a supersonic plane is rather pointless, as you would spend almost all your time slowly ascending and descending and very little time at cruise speed. In order to go fast, you need to be at high altitude where the air density drops exponentially, as air at sea level becomes as thick as molasses (not literally, but you get the picture) as you approach sonic velocity.
2013年08月13日 12点08分 4
level 3
赞!这么好的文章!
2014年04月23日 03点04分 7
level 5
命最重要!买车,先排除致死事故率最高的品牌和车型!
致死事故率最高的品牌,特斯拉高居榜首!
致死事故率最高的23个车型,日本车占8款!
(致死事故率可不是瞎编的 , 是美国机构iSeecars根据美国国家公路交通安全局统计的2017到2022这5年的全部死亡车祸造成车内司机和乘员死亡人数得出的客观数据,美国从1975年开始统计每一起死亡车祸。数据样本够大够全,时间够长。)
特斯拉事故率,致命事故率,故障率,保险赔付率等5个指标在几十个品牌里都是最高。
1.致命事故率:
按品牌:特斯拉在几十个品牌里最高,是行业平均水平的2倍,跟优秀品牌差距更巨大。
按车型:model Y是行业平均水平3.7倍,是某些优秀车型可能10倍左右。(致命事故率是美国iSeecars根据美国国家公路交通安全管理局5年内所有发生的死亡车祸得出的客观数据)。
2.故障率(德国tuv车辆年检数据):前年特斯拉model 3故障率14.7%,在所有检测的111款车中最高,行业平均故障率为5.7%;去年,model 3故障率14.2%,连续2年最高;今年,model Y故障率17.3%,在100多款车中最高,并且打破10年来的行业记录,行业平均故障率6.5%
3.故障率:丹麦公路交通管理局车辆年检:model 3故障率23%,电动车行业平均故障率为9%, 特斯拉几乎是电动车行业平均水平近3倍。
4.事故率(美国贷款机构Lendingtree根据保险机构数以千万份保险数据得出的客观数据):特斯拉连续多年几十个品牌里最高,是很多品牌的近2倍。
5.保险赔付率:特斯拉连续多年几十个品牌里最高(越低越好):2024特斯拉美国保险赔付率103.3%,而美国车险行业平均赔付率66.1% 。
6.车身扭转刚度:(抵抗外力变形能力,代表车身坚固程度,影响汽车安全性重要参数,越高越好):特斯拉几乎同类型同价位电动车里最低之一,model3和Y只有众多国产车型一半左右。中国电动车车身扭转刚度普遍很高,普遍是公路坦克,很安全。
7.采用纯视觉方案的特斯拉robotaxi事故率最高是人类驾驶员的9倍,是采用激光雷达+视觉融合方案的中国百度的萝卜快跑的一百多倍。(百度萝卜快跑事故率只有人类驾驶员的1/14)(虽然统计标准略有不同,但通过跟人类驾驶员的对比,能算出来。)激光雷达+视觉融合方案,成本更高更安全,是国产电动车主流方案。
8.根据德国,丹麦等官方或权威机构数据显示特斯拉故障率几乎是汽车行业或者电动车行业近3倍,特斯拉在刹车,悬挂,转向等问题突出。广为诟病的反人类的单踏板,低成本不安全的纯视觉FSD,还收费6.4万元,割冤大头韭菜!一般中国品牌低配车型才用纯视觉,中国品牌高端车一般都用激光雷达+毫米波雷达+高清摄像头视觉融合方案,成本更高,更安全。纯视觉方案在光线弱,夜晚,雾霾,雨天,天气不佳的情况下,很容易发生车祸。(特斯拉股东FSD开了不到100公里,就发生车祸。)
9.马斯克移民火星也是个彻头彻尾骗局!在火星生活,比在珠穆朗玛峰顶可能还要难一万倍!完全不适合人类生存!马斯克一开始说2018年登陆火星,一年推迟一年,后来又说2033年登陆火星。。。。马斯克无非靠这个来吹牛,造神,精神殖民,培养一些崇洋媚外的大殖子,特孝子,宣传特斯拉,星链,spacex等而已。美国靠控制全球媒体,金融霸权,吹牛造神,精神殖民,培养崇洋媚外的大殖子,让他当上世界首富,最终也是为了收割全球韭菜。
10.为什么特斯拉禁止进入部队,重要党政机关,涉密国企和科研院所,部队医院等单位?他是美国五角大楼,空军,NASA,情报系统背后的白手套,小马甲,代理人。星链星盾是军用的,主要是针对中国的,商用只是一部分。星链2次抵近中国空间站,严重威胁中国航天员生命安全!美国政府没钱投资NASA搞太空研发,选择马斯克这个白手套,靠私企,靠资本运作,让全球投资者承担一次次火箭发射失败风险,靠造车又反哺航天)。
即使SpaceX一次次发射失败,特斯拉事故率,致命事故率,故障率,保险赔付率等5指标都是最高,他的高铁公司倒闭, 也不影响他做全球首富收割全球财富。
截止2025年11月27日,特斯拉网上被曝光死亡车祸造成772人死亡,自动驾驶车祸死亡65人(这只是曝光的和统计到的一部分,没曝光的估计就更多了,可能只是冰山一角而已),特斯拉一次死亡3人,4人,5人的车祸都数不清了 。(国产品牌发生一起死3人的车祸就会被全国喷很久)。
。特斯拉2025全球销量163万辆,只有比亚迪全球销量460万辆的大概1/3。特斯拉全球销量已经连续2年下跌,销量很难进入全球车企20强,估计2026年销量很可能会连续第3年下跌。
不要再崇洋媚外了,全球最好的电动车品牌和混动车品牌都在中国!
靠一个洋logo,用黄金价买稻草的时代一去不复返了!
2026年09月14日 11点09分 8
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