Martin produced 23 No. 1 hits in the United States. ( 1 CNN)Sir George Martin, the music producer whose collaboration with the Beatles helped redraw the boundaries of popular music, died Tuesday, according to his management company. He was 90.
How ABS works. When the driver hits the brakes this pressurises a hydraulic system which causes the brake pads to squeeze against the discs which causes the car to slow down.
There is a valve in the brake line of each brake controlled by the ABS. 1  On some systems, the valve has three positions: 2  In position one, the valve is open; pressure from the master cylinder is passed right through to the brake. 3  In position two, the valve blocks the line, isolating that brake from the master cylinder.