Browse Publications Technical Papers 2019-32-0548
2020-01-24

Piston Temperature Measurement during Engine Warm-up and Application for Analysis of Piston Behavior 2019-32-0548

In recent years, internal-combustion engines have been required to satisfy various performance standards against emission regulations and fuel-efficiency targets. To this end, accurate measurement of piston temperature under various engine operating conditions is important.
Some studies reported the use of wireless methods to confirm the reliability of the measurement system at the highest engine speed and create a piston temperature map under all operating conditions. However, previous case studies only considered relatively large displacement engines, and the advantage of wireless methods—a high degree of freedom for design—was not used. In terms of engine operating conditions, few cases focus on the piston to cylinder wall clearance during engine warm-up conditions. Thus, wireless methods are still space to use their features.
In this study, we develop and implement a telemetry-type method for a motorcycle engine, which has smaller displacement and is therefore more restrictive relative to measurement system design than past case studies. The temperature distribution in the entire piston is measured, considering the temperature distribution of a cylinder bore wall surface during the period between a cold start and the completion of the warm-up. Temperature measurement data are continuously obtained under transient operating conditions. In addition, the measurement results are input to a model that simulates piston behavior to improve the calculation results of piston slap noise.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A New Ignition Delay Formulation Applied to Predict Misfiring During Cold Starting of Diesel Engines

2000-01-1184

View Details

JOURNAL ARTICLE

Computational Study of a Multiple Fuel Injector Concept under High-Load and High-EGR Conditions

2020-01-2034

View Details

TECHNICAL PAPER

Performance and Emission Characteristics of the Deutz Glow Plug Assisted Heavy-Duty Methanol Engine

872245

View Details

X