Power Flow Schematic: Notes

In order to understand power flow schematics, a relationship must be drawn between the actual components and the schematic representation. This example uses the 4HP22/24 power flow schematic. The 4HP22/24 transmission uses a Simpson Planetary Gearset and an auxiliary gearset. The auxiliary gear set is a simple planetary gearset. See Fig 1.

Fig 1: Identifying Power Flow Schematic

Courtesy of BMW OF NORTH AMERICA, INC.