Patent ID: 8126614

Claim:
In a vehicle comprising an automatic mechanical transmission system and an antilock braking system, a method for selectively decoupling the drive train from the wheels of the vehicle comprising: sensing at least one operational state of the vehicle; sensing a wheel-lock up condition of the vehicle; communicating the operational state and the wheel lock up condition of the vehicle to a logic control unit; and disengaging the drive train from the vehicle wheels when a first predetermined operational state of the vehicle and wheel lock-up condition is communicated by the logic control unit and maintaining engagement of the drive train and the wheels of the vehicle when a second predetermined operational state of the vehicle and wheel lock-up condition is communicated by the logic control unit, wherein the second predetermined operational state corresponds to a state in which the vehicle is one or more of descending an incline, transporting a load, has engine braking power, and operating in a predetermined configuration.