I remember hearing of people messing around at the GM proving grounds and would apply full brake to a front corner of a car while driving. Prank on a co-worker. It was using development software to over-ride the normal programming. So it could put out enough pressure to fully lock brakes on dry ground. I've been toying with the idea of using a basic ABS pump as an electric over hydraulic trailer brakes.
Google found me this, "The pump forces fluid into one or more accumulators, where is stored at very high pressures, typically 2000 to 3000 psi. until it is needed." SOURCE Or this "The pressure switch is designed to keep system operating pressure between 1,700 and 2,000 psi." http://www.aa1car.com/library/abs_bendix9.htm
ABS units are typically not intended for that much duty. They self test when you first start off and then don't get used much afterwards, if at all. I'm not saying it won't work, but it would be interesting to see if/how long it holds up. How would you control pressure? In a braking system an ABS pump is either on or off. The master cylinder (via your foot) is responsible for pressure modulation, and you won't have a physical hydraulic connection from the master cylinder to the trailer.
Haven't gotten that far yet. I know modern traction control will apply variable brake apply to spinning tires to direct power to the other wheel. That applies the brakes without master cylinder input. Right now it is just an exercise in thought.
Not so much variable power, more of a duty cycle controlled by the control unit based on wheel speed data, in conjunction with a reduction in power through timing, fuel, and/or throttle.
OP here. I'm not having any problems, I was curious about the system pressure for another application that is probably not going to work.
The other application would have to run brake fluid. All the seals inside the ABS are matched to brake fluid, not hydrocarbon. I have a hydraulic convertible top pump and rams I kept for some stupid reason just in case I wanted to play with a hydraulic project. They sit on the top shelf of the garage to be tossed in the trash the next time I move. I have a lot of stuff like that.
