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Hydraulic Modulator: Notes

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Hydraulic modulator controls hydraulic pressure to the front calipers and the rear wheel cylinders by modulating hydraulic pressure to reduce the tendency of wheel lock-up. The basic hydraulic modulator configuration consists of gear subassemblies, ball screws, nuts, pistons, and hydraulic check valves. The motor pack consists of 3 motors, 3 drive gears and 3 ESBs.