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Overview ABS 5.3

Overview ABS 5.3


ABS 5.3 on Saab 900 M96- consists of two main components:


• Wheel sensors

• ABS Hydraulic unit (including valve block and control module with relays)

The ABS on the Saab 900 M96- is a 2-circuit, 4-port braking system.

Four wheel sensors at the wheels send signals to a control module. This calculates wheel acceleration, (speed increase), wheel retardation (speed decrease), car speed and slip (locking degree) based on continual signals. If any of the wheels approaches its locking limit, the control module sends signals to the solenoid valves in the valve block for the wheel concerned. The pressure in the wheel's brake circuit is modulated so that the maximum possible braking force is continually transferred to the road surface and the necessary steering capacity is maintained.

EBD (Electronic Brake-force Distribution) is a function built into the electronic control module that controls the rear electromagnetic intake valves so the optimum braking force is achieved by the back wheels, without first locking the front wheels at varying load conditions.