Shift Motor Control

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The FCM will have the ability to vary the speed of the transfer case motor through pulse width modulation (PWM). It is PWM from 0 to 100% at 100Hz. The PWM will function as follows:

Apply an initial duty cycle (APPROXIMATELY 94%) to shift motor control wires.
Control the acceleration of the shift motor by increasing the applied duty cycle at a specified rate.
Control the deceleration of the shift motor by updating the applied duty cycle to the shift motor control wires at a specified rate based upon the difference between the desired position and the current position.