Provides improved acceleration and enhanced vehicle stability. Created by Bosch and developed in cooperation with Corvette engineers, the system makes Corvette a year-round performer.
The ASR Electronic Control Module monitors several key inputs, including drive wheel speeds, vehicle reference speed, the speed difference of the non-driven wheels, the front-to-rear wheel speeds on the same side of the car, vehicle acceleration, and throttle position
ASR functionally integrates three sub-systems - engine spark retard, throttle close-down and brake intervention
The system is calibrated to allow some wheel slip during acceleration if it is deemed beneficial for the driving conditions
Engine torque control reduces drive torque. When activated, the system reduces airflow to the engine by closing the throttle. A throttle-cable relaxer communicates to the driver by pushing back on the accelerator pedal
Engine spark retard is also used to reduce engine torque, particularly when the demand is immediate and of short duration (e.g., encountering a short, slippery section of road at cruising speed)
ASR has individual rear brake control, making it possible to utilize the available traction on a split- coefficient (i.e., one rear wheel on slick pavement, one rear wheel on dry pavement) road surface
ASR is automatically engaged when the vehicle is started, but can be turned off manually when additional wheel slip is desired, such as when the car is mired in snow or mud
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