Hydraulically controlled transmission for motor vehicles, uses controlled solenoid valves to selectively connect pressure source to engine coupling clutch or gear engagement clutches

摘要

The transmission has a hydraulic clutch (16) coupling the transmission to the engine and hydraulic multi-disk clutches (46) that engage a gear by coupling it to the gearbox shaft. A single source (118) of hydraulic pressure selectively supplies the clutches through control of solenoid valves (128,130) connecting the clutches to the pressure source.