Design of an automatic transmission system having an arbitrary power flow using the automatic power flow generation algorithm

In this paper, the automatic power flow generation algorithm for designing an arbitrary type of automatic transmission system is proposed. The state equations of motion for the steady state and transient state of the automatic transmission system are developed, not by human hands but by the computer using this algorithm. The deliveries of the angular velocities and torques are only considered for the motion characteristics of the automatic transmission system. The effects of the vibration and noise are not considered. The automatic transmission system is defined by the basic elements, i.e. planetary gear set, clutch, brake, shaft, general gear, and inertia. The transmission system is defined by the combination of these elements. The automatic system components generation algorithm generates the automatic transmission system at each shift and during shifts. An automatic transmission system having an arbitrary power flow can be designed automatically by the software developed based on these algorithms. To prove these algorithms, the double planetary gear system is designed and the simulation results are compared with the experimental results and show good agreement.