Multi-stage transmission of vehicle

Abstract

A multi-stage transmission (3) of which gears do not rattle when an engine (1) is idling. The multi-stage transmission (3) is equipped with a splitter (17) that has a neutral position (N). The splitter (17) is located between a clutch (2) and a main transmission (18). A drive power from the engine (1) is not transmitted to the main transmission when the splitter (17) is in the neutral position. Thus, a counter shaft (32) in the transmission (3) does not rotate, and the gears in the transmission (3) do not rattle. The splitter (17) is shifted to a high or low gear (H or L) after a predetermined interval (tint) so that the gears rotate and lubrication oil is caused to splash. When the splitter (17) is in the neutral position, the lubrication oil is not fed to shaft supports (bearings) in the transmission (3). The interval period is determined from temperature of the lubrication oil.

Dependencies are inferred from the claim text.