HYDRAULIC CONTROL SYSTEM FOR TRANSMISSION

摘要

PURPOSE: A hydraulic control apparatus of an automatic transmission is provided to perform fluid pressure supply to a high fluid pressure part smoothly, by comprising a first oil pump and a second oil pump. CONSTITUTION: A first oil pump (100) forms a low fluid pressure part. A second oil pump (150) forms a high fluid pressure part. A torque converter (400) is supplied with a part of oil of the low fluid pressure part. A lubrication part (450) is supplied with the other part of the oil of the low fluid pressure part. A power train (300) is delivered with oil of the high fluid pressure part. [Reference numerals] (450) Lubrication part; (AA) Low pressure part; (BB) High pressure part