Closed-loop, valve-based transmission control algorithm

Details Closed-loop, valve-based transmission control algorithm Closed-loop, valve-based transmission control algorithm

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 48/06 (2006.01)

Patent

CA 2571838

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).

L'invention concerne un système permettant de commander la pression dans un mécanisme de transmission, comprenant une unité de commande de transmission (102), un contrôleur de vanne (104) qui reçoit une pression désirée (202) fournie par l'unité de commande de transmission (102), un moyen d'entraînement de vanne (108), une vanne (112) qui régule la quantité de fluide dans un embrayage de transmission (106), et un transducteur de pression qui relève la pression dans l'embrayage de transmission (106) et fournit le relevé de pression (204) au contrôleur de vanne (104). Le contrôleur de vanne (104) comprend une logique permettant de fournit au moyen d'entraînement de vanne (108) une instruction pour commander la vanne (112), l'instruction comportant la pression désirée (202) et le relevé de pression (204).

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