Kubota D1803-CR-E4 User Manual

9.12 Differential pressure sensor
9.12.1 Outline of differential pressure
sensor
The differential pressure sensor detects the pressure
difference between the inlet and outlet of the DPF
.
9.12.2 Structure of differential pressure
sensor
The differential pressure sensor is made up of wire and
silicon and the like.
(1) DPF inlet pressure (high
pressure port)
(2) DPF outlet pressure (low
pressure port)
Circuit diagram
(3) Differential pressure sensor
(4) ASIC
(A)
Power supply (+5 V)
(B) Ground
(C) Output signal (Vout)
9.12.3 Function of differential pressure
sensor
The differential pressure sensor measures the pressure
difference
between the inlet and outlet of the DPF and
sends this information to the engine ECU.
The engine ECU calculates the amount of PM
accumulated in the DPF based on the differential
pressure sensor information.
The differential pressure sensor has an internal silicon
diaphragm and
the output changes based on
diaphragm displacement due to pressure differences.
9.12.4 Specification of differential pressure
sensor
Supply voltage 5.0 V
Output resistance 5 kΩ
Output characteristics
(1) Output (%Vdd) (2) Differential pressure (kPaD)
MECHANISM
9. Aftertreatment system 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-83
KiSC issued 12, 2018 A

Kubota D1803-CR-E4 Specifications

General

Brand	Kubota
Model	D1803-CR-E4
Category	Engine
Language	English