[rescue] Sun Netra = Ultra 2?
erie at shelbyvilledesign.com
Sat Dec 9 18:06:50 CST 2006
Several European manufacturers, Audi, for one, as well as BMW use
hydraulically assisted brakes (as well as steering), using a similar
approach, though the pedal is connected to the master cylinder, if you
lose hydraulic assist, for all practical purposes, there are not brakes
(unless you have huge, powerful legs, that is.)
Sheldon T. Hall wrote:
>C Fernandez ...
>>Sheldon T. Hall wrote:
>>>Yep. A rubber-covered button on the floor, instead of a
>>>pedal. It didn't
>>>move perceptably; instead of applying more brakes when you
>>>it applied more brakes when you pushed harder.
>>Any idea how that worked?
>If I were doing it, though, I'd have a dual-chanbered valve body connected
>to both the the control (low-pressure) side of the hydraulic system, and the
>working (high-pressure) side. The top part of the valve body would modulate
>the control flow, while the lower part of the body would provide
>backpressure from the working flow. The valve would move a little bit, but
>the main sensation would be its pressing back against your foot more
>strongly as you pressed against it more strongly.
>I've seen a diagram of the thing, ages and ages ago, but I've never seen one
>separate from the car, much less taken one apart, so the above is really
>just surmise on my part.
>The Wikipedia article (http://en.wikipedia.org/wiki/Citro%C3%ABn_DS) is an
>excellent run-down on the car's major features and impact, but doesn't say
>much about the brakes.
>I've never owned one, though I've always wanted to. I used to know a chap
>in Atanta who had several of them. At one point, I think he had "one of
>each" of the big ones running, i.e. an ID, a DS, and an SM.
>rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
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