HYDRAULIC CONTROL SYSTEM WITH ETRS AND MULTIPLEXED CLUTCH CONTROL FOR A TRANSMISSION

摘要

An electronic transmission range selection hydraulic control system includes a source of pressurized hydraulic fluid, a first mode valve assembly in fluid communication downstream of the source of pressurized hydraulic fluid, a drive clutch actuator connected to a drive clutch and in fluid communication directly downstream of the first mode valve assembly, a reverse clutch actuator connected to a reverse clutch and in fluid communication directly downstream of the first mode valve assembly, a second mode valve assembly in fluid communication directly downstream of the first mode valve assembly, and a park servo connected to the park mechanism and in fluid communication directly downstream of the first mode valve assembly and the second mode valve assembly.

主权项

1. A hydraulic control system for a continuously variable transmission having a drive clutch, a reverse clutch, and a park mechanism, the hydraulic control system comprising:
a source of pressurized hydraulic fluid; a first mode valve assembly in fluid communication downstream of the source of pressurized hydraulic fluid; a drive clutch actuator connected to the drive clutch and in fluid communication directly downstream of the first mode valve assembly; a reverse clutch actuator connected to the reverse clutch and in fluid communication directly downstream of the first mode valve assembly; a second mode valve assembly in fluid communication directly downstream of the first mode valve assembly; and a park servo connected to the park mechanism and in fluid communication directly downstream of the first mode valve assembly and the second mode valve assembly.