Abstract: A braking reduction and transmission control system is implemented in a vehicle or machine having a power source and an automatic transmission connected by a torque converter providing a fluid coupling between a power source output shaft and a transmission input shaft. A lock-up clutch operatively connect to the torque converter is locked when the shafts are rotating at approximately the same speed. The braking reduction and transmission control system unlocks the lock-up clutch when operating conditions of the machine indicate that a transmission downshift will occur, such as when a combination of a brake input device displacement and a machine ground speed compared to a transmission downshift schedule indicate that the downshift will occur. Prior to downshifting the transmission and unlocking the torque converter, the drivetrain assists the service brakes in slowing the machine.

Abstract: A power system is disclosed for use with a mobile machine having a work tool. The power system may have an engine, a first input device configured to generate a first signal indicative of an operator-desired output of the engine, a second input device configured to generate a second signal indicative of an operator-desired movement of the work tool, and a controller in communication with the engine, the first input device, and the second input device. The controller may be configured to adjust fueling of the engine based on the first signal and based on a desired speed of the engine during a first mode of operation, and to adjust fueling of the engine based on the first signal and a desired torque of the mobile machine during a second mode of operation. The controller may be further configured to selectively switch operation of the machine between the first and second modes based on the second signal.

Abstract: A power system is disclosed for use with a mobile machine having a work tool. The power system may have an engine, a first input device configured to generate a first signal indicative of an operator-desired output of the engine, a second input device configured to generate a second signal indicative of an operator-desired movement of the work tool, and a controller in communication with the engine, the first input device, and the second input device. The controller may be configured to adjust fueling of the engine based on the first signal and based on a desired speed of the engine during a first mode of operation, and to adjust fueling of the engine based on the first signal and a desired torque of the mobile machine during a second mode of operation. The controller may be further configured to selectively switch operation of the machine between the first and second modes based on the second signal.

Abstract: An operator input device includes an operator interface mechanism operable by an operator, a position sensor, a brake controller, and a resistive actuator. The operator interface mechanism is moveable in at least first and second directions along an axis. The position sensor is coupled to the operator interface mechanism for transmitting an operator interface mechanism position signal as a function of the position of the operator interface mechanism. The brake controller is coupled to the position sensor for receiving the operator interface mechanism position signal and responsively transmitting a brake signal. The resistive actuator is coupled to the brake controller and the operator interface mechanism and receives the brake signal and responsively applies a resistive force to the operator interface mechanism.

Abstract: An operator input device includes an operator interface mechanism operable by an operator, a position sensor, a brake controller, and a resistive actuator. The operator interface mechanism is moveable in at least first and second directions along an axis. The position sensor is coupled to the operator interface mechanism for transmitting an operator interface mechanism position signal as a function of the position of the operator interface mechanism. The brake controller is coupled to the position sensor for receiving the operator interface mechanism position signal and responsively transmitting a brake signal. The resistive actuator is coupled to the brake controller and the operator interface mechanism and receives the brake signal and responsively applies a resistive force to the operator interface mechanism.