Patent ID: 6545613
Filing Date: 2003-04-08
Classification: B60T,G01D,G01L

Abstract:
A hydraulic control valve comprising:a control valve body having a plurality of passageways formed therein, said passageways adapted to be connected to a hydraulic control system; a plurality of pressure sensors carried by said control valve body, each of said pressure sensors communicating with a selected one of said passageways, each of said sensors operative to generate a pressure signal voltage that is a function of a fluid pressure in said selected passageway; and a single signal conditioning circuit also carried by said control valve body, said signal conditioning circuit electrically connected to each of said pressure sensors, said signal conditioning circuit including an adjustable circuit that provides selective compensation for each of the pressure sensors, said signal conditioning circuit operative to sequentially sample each of said pressure signal voltages and to generate an analog multiplexed signal that includes said pressure signal voltage samples.