Electrically variable hybrid transmission for use in powertrain, has solenoid valve controlling fluid communication between main passage and passage, where another solenoid valve controls communication between main and another passage

摘要

The transmission (14) has a solenoid valve controlling fluid communication between a clutch (C1) and a passage. Another solenoid valve controls the fluid communication between a clutch (C2) and another passage. A third solenoid valve controls the fluid communication to a clutch (C3). A fourth solenoid valve controls the fluid communication between a clutch (C4) and a main passage. A fifth solenoid valve controls the fluid communication between the main passage and the former passage. A sixth valve controls the fluid communication between the main passage and the latter passage.