questions on abs systems.

[Master ACiD]

i consider myself a reasonably informed guy when it comes to automotive tech. however one question ive awalys wondered is on abs.

on a car equipped with 4 wheel abs, if you are comming to a stop and only 1 wheel wants to lock up, say the front left wheel, does the abs modulator reduce braking to that 1 wheel or does the abs modulator reduce pressure equally to all 4 wheels?

how precise is amb on most cars? could you theoretically have the 2 right wheels on ice and the 2 left on dry tarmac and still brake in a straight line with the brakes depressed to their maximum?

 

[punisher]

There are different types of ABS. A true 4 wheel ABS will modulate pressure to each individual wheel. Some ABS systems, modulate each front wheel individually and the rear wheels together, I call it a 3 circuit system. If your rear ABS speed sensor is mounted in the differential, then you have a 3 circuit system.