System, Method, And Apparatus For Operating A High Efficiency, High Output Transmission

A transmission, comprising:

• an input shaft configured to couple to a prime mover;
• a countershaft having a first plurality of gears mounted thereon;
• a main shaft having a second plurality of gears mounted thereon;
• an output shaft selectively providing a torque output to a driveline;
• a clutch configured to selectively couple the input shaft to the main shaft by rotatably coupling at least one of the second plurality of gears to the main shaft, wherein the clutch is engaged by a shift actuator controlled by a solenoid;
• and
• a clutch control logic including a solenoid temperature circuit that determines an operating temperature of the solenoid, a solenoid control circuit that operates the solenoid in response to the operating temperature of the solenoid, wherein the solenoid control circuit operates the solenoid by providing an electrical current to the solenoid, such that a target temperature of the solenoid is not exceeded.