看维基百科关于C4的介绍，貌似这车在打滑的时候能调整轴重以获取更大的牵引力？
原文：http://en.wikipedia.org/wiki/GE_Evolution_Series#ES44C4
A unique feature of these units is that there is a variable traction control system in their computer systems. One of the differences between an ES44AC and an ES44C4 are the air cylinders and linkages on the truck sideframes of the ES44C4; these are part of the traction control system. Every time a variable in grade, traction, or wheel slip occurs, the computer will adjust the pressure in these cylinders to maintain sufficient adhesion, by varying the weight on the drive axles.
我怀疑可能就是。简单翻译了一下：
A unique feature of these units is that there is a variable traction control system in their computer systems.
这些机车的特别之处在于其变量牵引控制系统。
One of the differences between an ES44AC and an ES44C4 are the air cylinders and linkages on the truck sideframes of the ES44C4; these are part of the traction control system.
ES44C4与ES44AC的的一个区别，是ES44C4的转向架侧面增加的气缸，这些气缸是牵引控制系统的一部分。
Every time a variable in grade, traction, or wheel slip occurs, the computer will adjust the pressure in these cylinders to maintain sufficient adhesion, by varying the weight on the drive axles.
挡轮对发生空转，电脑将会通过调整这些气缸的气压，来调整驱动轴的轴重，从而保持足够的黏着。
发表于 2015-6-9 09:41:31
楼主
发表于 2015-6-9 22:14:47
