Patent ID: 9347555
Filing Date: 2016-05-24
CPC Classification: F16H,Y10T

Claim Text:
1. A variator trim system control method executable by an electronic control unit of a continuously variable transmission, the method comprising: detecting a first operating state of the transmission, blocking a first trim valve from supplying fluid pressure to a variator of the continuously variable transmission in response to detecting the first operating state, detecting a second operating state of the transmission subsequent to detecting the first operating state of the transmission, blocking a second trim valve from supplying fluid pressure to the variator in response to detecting the second operating state, unblocking the first trim valve in response to detecting the second operating state, detecting a third operating state of the transmission subsequent to detecting the second operating state of the transmission, and unblocking both of the first and second trim valves to supply fluid pressure to the variator in the third operating state.