GF27.60-D-3010H Gear Change, Function

GF27.60-D-3010H Gear Change, Function
- TRANSMISSION 722.6


Each shifting of gears is triggered by the electronic transmission control (ETC). Each shift sequence is assigned a control block. In each case this includes an overlap regulating valve, a holding pressure shift valve, a shift pressure shift valve, a command valve as well as an electromagnetically operated switchover valve (upshift/ downshift solenoid valve).

Actuation of the solenoid valve switches over from stationary mode to the shift phase.

When the gear change is complete the solenoid valves are no longer actuated as the different gears are subject to a self-hold function in stationary mode.