原创 Chevrolet Volt的信息

   这些天太压抑了，写些有趣的吧。

不怕麻烦的可以阅读这些文章:

IBM outlines how it helped Chevrolet with the Volt’s development

IIHS says 2011 Chevrolet Volt and Nissan LEAF are practically as safe as larger cars

Chevrolet Volt assembly plant begins construction of solar panel arrays

Volt Safety System

首先就是volt很耐撞，撞了以后也没发生起火或者其他情况。这个是Insurance Institute for Highway Safety (IIHS)做的，高速情况下装一下，不会出现让我们担心的问题。

有个哥们挺有意思的，写了这些：

The Volt has three and perhaps four advantages over the Leaf.

First it’s heavier. Rather than saying that the Volt weighs more than an Impala I think of the Volt as weighing more than a Mercedes E class sedan. You can’t say that about the Leaf.

Volt竟然和奔驰E级的车一样重，看来电池还是比较给力，Volt其实是一辆挺小巧的。

Second is that almost 80% of the steel in the Volt is high strength steel which protects the passenger compartment better (don’t know about the Leaf). 

泪流满面的80%的加强钢，我很怀疑Volt如果不坚持彻底的降成本的话，怎么才能赚钱，用了多少好的材料和新技术啊。

Third is that the Volt has two more airbags than the Leaf — the knee airbags for the driver and front passenger. These ensure the occupant doesn’t slide forward and under the dash during a crash.

好多安全气囊啊……

Fourth and finally the battery housing in the Volt protects the passenger compartment in a way that the Leaf battery pack doesn’t. Running into a Volt from the front or the side is a big like running into the end of an I-beam.

电池的耐撞性其实是GM花了最多的时间和精力的，在EV1就使用的布置，GM花了第一笔10亿美金的收获之一吧。

虽然我对IBM很有好感，但是这句话还是太不给面子了：“It was a risk on their part because they are a very old company, but they needed to do it different and they did”

从这篇文章里头，可以获取不少的信息；

1.Volt里头有个100+的电子模块

2.Volt里头总的模块包含1000W行代码，09年的车大概600W，05年240W，也就是说这车的软件量非常大

3.原本预计开发周期为5年，实际的周期为2年5个月，很大的一部分原因是通过引入了Unified Modeling Language (UML)，采用了从系统策略模型直接至软件的方法（这个我听说过，不过完全不懂，有以前的xd是高手）。

4.测试步骤的简化，从600=>400，三位数的测试步骤已经让我无从想象了。

最后一个有趣的事情是，在生产Volt的工厂里头，安装了太阳能的车棚，可以就近充电，挺有想法滴。