RSC CONTROL OUTLINE

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• The dynamic stability control (DSC)/roll stability control (RSC) system monitors the signal from the roll rate sensor and each sensor, and calculates if the vehicle may be approaching a situation where rollover is probable. When this occurs, the DSC/RSC system applies preemptive action. When the DSC/RSC system is activated, it adjusts the braking force of specific wheels in response to the direct measurement of the vehicle roll motion. By adjusting the brake force, the DSC/RSC system can reduce cornering forces, reducing the total roll moment acting on the vehicle. The DSC/RSC system has the roll rate sensor located within the SAS control module and an additional program within the DSC/RSC control module (CM) to support the vehicle control during sudden steering operation. Information from the roll rate sensor is input into the DSC/RSC CM. The computer uses information from the antilock brake system (ABS) wheel-speed sensor (wheel speed), throttle position sensor (throttle valve opening angle), steering angle sensor (steering wheel angle, steering wheel rate of change), and SAS control module (longitudinal-G, lateral-G, yaw rate, roll rate). If the DSC/RSC CM determines from all these inputs that conditions exist for a potential rollover, the CM applies one or more brakes and reduces the engine torque to make the vehicle more stable.