Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryoji Habuchi0
Yoshinobu Soga0
Yusuke Ogata0
Date of Patent
May 31, 2011
Patent Application Number
12206357
Date Filed
September 8, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
In one embodiment, an oil pressure control apparatus includes a belt-driven continuously variable transmission, a lockup clutch provided in a torque converter, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressure of various parts, and a lockup control valve that performs switching when controlling engagement/release of the lockup clutch. Control of the primary regulator valve and control of the lockup control valve are performed with a single linear solenoid valve. In this case, control of the primary regulator valve and control of the lockup control valve are performed in different ranges.
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