Patent ID: 6434456
Filing Date: 2002-08-13
Classification: B60T,G01L,Y10S

Abstract:
A pressure sensor assembly for a hydraulic control unit comprising:a pressure sensor housing adapted to be mounted upon a hydraulic control unit; a pressure sensor diaphragm carried by said pressure sensor housing; a first pressure sensing element mounted upon said pressure sensor diaphragm; a second pressure sensing element mounted upon said pressure sensor diaphragm; a first signal conditioning circuit connected to said first pressure sensing elements, said first signal conditioning circuit operable to generate a first pressure signal at a first output port; a second signal conditioning circuit connected to said second pressure sensing elements, said second signal conditioning circuit operable to generate a second pressure signal at a second output port; and an electronic device connected to said output ports of said first and second signal conditioning circuits, said electronic device operative to compare said first and second pressure signals and, upon detecting a difference therebetween, to generate an error signal.