2.3.8. Rail pressureΒΆ

Description

The rail pressure sensor measures the pressure at the rail (injection pressure).

ECU connection

The pin numbers at the ECU:

EDC17CV41+      2.11 5Vdc reference supply voltage
EDC17CV41+      2.36 Analog input
EDC17CV41+      2.60 Ground

The pin numbers at the sensor:

Pin 1           Ground
Pin 2           Analog input
Pin 3           5Vdc reference supply voltage

The rail pressure sensor is shown in figure ECU connection EDC17CV41+, Rail pressure sensor.

../../_images/rail_pressure_837079833.png

ECU connection EDC17CV41+, Rail pressure sensor

Characteristics 2000bar

Output voltage:

At 0 MPa = 0.5 V
At 200 MPa = 4.5 V

The rail pressure sensor characteristics Characteristics, 2000 bar rail pressure sensor.

../../_images/rail2000_char1.png

Characteristics, 2000 bar rail pressure sensor

Characteristics 2200bar

Output voltage:

At 0 MPa = 0.5 V
At 220 MPa = 4.5 V

The rail pressure sensor characteristics Characteristics, 2200 bar rail pressure sensor.

../../_images/rail2200_char1.png

Characteristics, 2200 bar rail pressure sensor