Activation Of Stepper Motor Controllers

The AHL control unit transmits the nominal values for the positioner modules (position and speed of movement of the positioner modules) to the stepper motor controllers (SMC). The AHL control unit calculates the nominal values on the basis of the following input signals:

• Vehicle road speed
• Steering angle (at speeds up to 50 km/h, depending on programming) (50 km/h = 31 mph)
• Yaw rate (above 50 km/h, see "STEERING ANGLE SENSOR AND DSC SENSOR  ").