The electronic control software for automatic transmissions is an AMT transmission control system software platform developed by the company for meeting the commercial vehicle market needs, which can meet the control requirements of electric (motor actuator) and hydraulic (solenoid valve actuator) AMT systems. Its core algorithms support three-parameter shifting, enable the identification of better shifting rules and timing in light of the ramp environment and vehicle acceleration, and support the economic/dynamic mode and manual mode for shifting; the fusion calculation method of the acceleration sensor and the vehicle dynamic model can more accurately identify the vehicle dynamics and road conditions; the specific control strategies for differentiated ramp starting and flat road starting enable the vehicles to have a better ramp starting ability and reduce the sliding-friction work at starting; the algorithm matching the clutch control with the engine/motor coordinated control greatly shortens the power interruption time during gear shifting and gives consideration also to smoothness. Meanwhile, the company has accumulated rich application matching experience through the development of the software platform and the calibration tests for AMT actuators, transmission bench and whole-vehicles, helping customers optimize the shift time and shift schedule.