Forward/reverse control system for continuously variable transmission

Abstract

Disclosed is a forward/reverse control system for a continuously variable transmission comprising pressure regulating means for controlling an inputted line pressure according to whether a forward or reverse state is required; a manual valve for selectively supplying and exhausting hydraulic pressure, which is supplied from the pressure regulating means, to and from a forward clutch and a reverse brake; and a check ball unit mounted between a forward hydraulic line and a reverse hydraulic line, which are connected respectively to the forward clutch and the reverse brake, the check ball unit operating to communicate the forward hydraulic line with an accumulator when hydraulic pressure acts on the forward clutch and operating to communicate the reverse hydraulic line with the accumulator when hydraulic pressure acts on the reverse brake.

Dependencies are inferred from the claim text.