SENSORS

Delphi Particulate Matter Sensor
The Delphi Particulate Matter Sensor is an advanced all-new
sensing technology that helps diesel engine manufacturers comply
with the latest on-board diagnostic (OBD) standards.
In a vehicle equipped with a diesel particulate filter, particulate
matter (PM) is created during the combustion process and captured
in the vehicle's exhaust system by the diesel particulate filter.
Delphi's new Particulate Matter Sensor helps detect leakage in the
diesel particulate filter to meet system diagnostic standards. The
patented sensor combines fast response and high sensitivity with
simplicity of design and self-diagnostic features. It is an affordable
sensing technology that offers manufacturers a low cost system
integration path.

Benefits
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Measures PM in exhaust gas to help detect diesel particulate filter
leakage at required threshold levels
Delphi Particulate Matter Sensor and
Helps manufacturers meet new regulatory requirements in the U.S.
PM Sensor Control Module
(2015) and Europe (2015+)
Spin nut connection to control direction of the sensing element for consistent performance
Heater compatible with 12 V or 24 V electrical systems
Capable of regeneration across a range of exhaust velocities and temperatures
Offered with two shield lengths to match exhaust pipe diameter
System includes Delphi-supplied sensor and sensor control module

Typical Applications
Delphi's Particulate Matter Sensor features variable shield length, which enables a wide variety of heavy
duty and light duty diesel transportation applications.

Availability
The Delphi Particulate Matter Sensor is targeted for start of production in 2014. Contact Delphi for
additional information.

Performance Advantages
In conventional systems, a leak of the diesel particulate filter is detected indirectly by a measurement of
pressure drop across the filter. However, stricter emissions regulations will require more accurate diagnosis
of the diesel particulate filter to achieve more stringent diagnostic threshold levels. Delphi's new Particulate
Matter Sensor features a resistive technique that directly measures PM levels in the exhaust stream and
allows the system to determine when emissions levels are exceeded, providing greater accuracy and
reliability.

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