Patent ID: 6095003
Filing Date: 2000-08-01
Classification: B60W,F16H,Y10T

Abstract:
A compound vehicular transmission system (10) comprising:a compound splitter-type mechanical transmission (16) having an input shaft and an output shaft, said transmission having a shift-lever-shifted, synchronized main transmission section (16A) connected in series with a splitter-type auxiliary section, said auxiliary transmission section (16E) interposed between said main transmission section (16A) and said output shaft (20);a splitter actuator (46) for selectively causing said splitter-type auxiliary section to be shifted into a selected one of a first splitter ratio (low), a second splitter ratio (high), or a splitter-neutral (N) position, anda controller (48, 36) for receiving input signals (68) and processing same according to logic rules to issue command output signals (70) to system actuators including said splitter section actuator (44), said logic rules including rules for sensing a shift into a main transmission section ratio and into main transmission section neutral and effective, upon sensing a shift into main transmission section neutral, to cause said splitter to be shifted into the splitter-neutral position.