System Overview/Components
System Overview
The Teves ABS/ASC+T is a four channel, front (rear split system. Each rear brake caliper has its own hydraulic line from the hydraulic unit.
The ASG+T control determines the degree of slip based on the signals from the wheel speed sensors. The control module averages the speeds of the two front wheels to determine vehicle speed. The speeds of the front and rear wheels on each side are monitored to determine the degree of slip.
The programming of the control module will then activate ASC+T regulation using one of the following principles, based on various combinations of vehicle speed and traction conditions:
Select High - Traction: Select Low - Stability
1. Rear Brake Control 1. Throttle Control
2. Throttle Control 2. Ignition Control
3. Ignition Control 3. Rear Brake Control
During ASC+T regulation the ASC Control Module has the ability to pulse the rear brakes individually or together. This depends on the degree of control required to restore traction as determined by the control module.
During ABS regulation the Control Module will pulse the rear brakes together as with previous anti-lock systems.
In addition to the traction control, the ASC+T Control Module interfaces with the DME control module. This will further reduce the engine's output torque. The total scope of engine control is the same as other ASC systems and includes:
^ Engine Intake Air Regulation
^ Ignition Timing Retard
^ Ignition/Injection Fade Out
On vehicles equipped with automatic transmissions, the ASC+T system interfaces with the EGS control module. This will delay or inhibit shifts during ASC regulation to prevent instability.
System Components
Control Module
The Teves system uses one control module to house all of the electronics for ABS/ASC+T and ADS regulation.
The control module (1) is mounted behind the glove box in the passenger compartment.
Hydraulic Unit
The hydraulic unit is mounted under the brake booster. It contains the components as listed in the illustration.
ADS II Motor
The ADS II motor is located just above the hydraulic unit mounted to the left front shock tower. It is connected to the throttle valve through a bowden cable.