Evaluation of Cylinder Pressure Transducer Accuracy based upon Mounting Style, Heat Shields, and Watercooling DaimlerChrysler Corporation

Format:

Conference/Event

Author/Creator:

Soltis, Dennis A., author.

Conference Name:

Powertrain & Fluid Systems Conference & Exhibition (2005-10-24 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

This investigation evaluated different pressure transducers in one cylinder to examine the combustion measurement differences between them simultaneously. There were a total of eleven transducers ranging in both diameter and type of transducer (piezo-electric, piezoresistive, and optical). Furthermore, the sensors differed in the methodology for minimizing signal distortion due to temperature. This methodology could take the form of various size mounting passages, heat shields, watercooling or heat transfer paths. To evaluate the sensors, different engine operating conditions were conducted, focusing at full load and low speeds. Other hardware configurations of the same engine family were used to exaggerate the combustion environment, specifically a tumble-motion plate and turbocharging. Metrics for accuracy of the sensors were based upon the variation of absolute and statistical combustion parameters, deviation to an exhaust absolute pressure sensor, comparison to other sensors during the combustion cycle, and variability of each sensor to itself during the combustion cycle. Finally sensors were evaluated for knock recognition

Notes:

Vendor supplied data

Publisher Number:

2005-01-3750

Access Restriction:

Restricted for use by site license