Patent ID: 7597651

Claim:
A control system for a power input shaft brake in a powertrain for a vehicle powered by an engine, an accelerator pedal and a transmission with a power input shaft driven by the engine, the control system comprising: a brake system controller; a power input shaft brake switch that may be switched between a brake-on condition and a brake-off condition, wherein the conditions are provided to the controller; an accelerator pedal position switch that provides to the controller a signal indicative of the position of the accelerator pedal within a pedal stroke range; a vehicle speed sensor that provides to the controller a signal representative of vehicle speed; and a timer for measuring the time the brake is applied; the timer being characterized by a predetermined timer setpoint for limiting a duration the brake is applied; the controller being configured to enable the brake when the power input shaft brake switch is closed, the accelerator pedal position is less than a predetermined portion of the stroke range and the vehicle speed is below a predetermined value.