CLOSED-LOOP, VALVE-BASED TRANSMISSION CONTROL ALGORITHM

摘要

A system for controlling pressure in a transmission comprises a transmission control unit 102, a valve controller 104 that receives a desired pressure 202 as input from the transmission control unit 102, a valve driver 108, a valve 112 that regulates an amount of fluid in a transmission clutch 106, and a pressure transducer that reads a pressure in the transmission clutch 106 and outputs a pressure reading 204 to the valve controller 104, wherein the valve controller 104 comprises logic for outputting to the valve driver 108 an instruction for controlling the valve 112, the instruction being formulated using the desired pressure 202 and the pressure reading 204.