Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Isamu Ohtake0
Yoshiaki Katou0
Date of Patent
June 5, 2007
Patent Application Number
11062487
Date Filed
February 23, 2005
Patent Primary Examiner
Patent abstract
A hydraulic pressure control system for an automatic transmission is comprised of an engagement element engaged when the vehicle runs and a first engagement control actuator controlling the engagement element by supplying the controlled hydraulic pressure to the engagement element when the vehicle starts running. An effective cross sectional area of the engagement element is set at a minimum area which has an engagement capacity capable of transmitting a maximum torque inputted from the engine when the engagement element receives a maximum pressure controlled by the first engagement control actuator.
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