General Description
DESCRIPTIONWhen conventional brakes are applied in an emergency stop or on ice, one or more wheels may lock. This may result in loss of steering control and vehicle stability. The purpose of the Bendix ABX-4 brake system is to prevent lockup under heavy braking conditions. The system offers the driver increased safety and control during braking. ABS operates only at speeds above three miles per hour.
OPERATION
Under normal braking conditions, the Anti-Lock Brake System (ABS) functions as a standard brake system with a diagonally split master cylinder and conventional brake booster.
If a wheel lock is detected during braking, the system will enter ABS mode. During ABS mode, hydraulic pressure in the four wheel circuits is modulated to prevent any wheel from locking.
Each wheel circuit has a set of electrical valves to provide modulation to each wheel. Front wheels receive separate signals and rear wheels receive the same signal.