Boosting parking brake drive-through torque

摘要

A system and method for enabling a machine to drive through its parking brake when in first gear include detecting that the machine transmission is in its lowest gear in a selected direction, that the machine parking brake is activated, such that the machine is stationary, and that the throttle setting of the machine exceeds a predetermined throttle threshold value. In this state, one or more auxiliary loads of the machine are dropped to provide additional torque to the ground engaging elements of the machine, such that there is sufficient torque to drive the machine through the parking brake.

主权项

1. A method for enabling a machine to drive through a parking brake of the machine, the method comprising:
detecting that a transmission of the machine is in a first gear, wherein the transmission provides a plurality of gears of consecutive respective ratios and the first gear has the lowest ratio of the plurality of gears in a selected direction; detecting that a parking brake of the machine is activated, such that the machine is stationary; detecting that a throttle setting of the machine exceeds a predetermined throttle threshold value; and in response to the detected gear, parking brake activation and throttle setting, withholding power from one or more auxiliary loads of the machine to provide additional torque to ground engaging elements of the machine to allow the machine to drive through the parking brake.