Control for controller-assisted, manually shifted, splitter type compound transmissions

摘要

A control for enhanced manual shifting in a computer-assisted (48) vehicular splitter-type compound transmission (16) having a non-synchronized, enlarged backlash main section (16A) shifted by a manually operated shift lever (31) and a controller (48). The splitter section (16E) is provided with a three-position (L,H,N) actuator (46) and is commanded to a splitter-neutral position upon sensing a main section shift to neutral to reduce the inertia of the main shaft assembly and reduce the need to synchronize the main section. The main section is provided with enhanced backlash jaw clutches to be engaged into a target ratio with low effort.