Compression-Release Engine Brake Modeling and Braking Performance Simulation

Paper #:
  • 2012-01-1968

Published:
  • 2012-09-24
DOI:
  • 10.4271/2012-01-1968
Citation:
Jia, P. and Xin, Q., "Compression-Release Engine Brake Modeling and Braking Performance Simulation," SAE Int. J. Commer. Veh. 5(2):505-514, 2012, doi:10.4271/2012-01-1968.
Pages:
10
Abstract:
A diesel engine multi-cylinder valvetrain model including a hydraulic engine braking system was developed. The model can be used for valvetrain dynamics analysis in both engine firing and braking conditions. Moreover, it can be used to investigate engine braking performance with conjugated analysis by combining the valvetrain model with an engine thermodynamic cycle simulation model. Dynamic valve lift profiles, which are important for accurate engine performance simulations, can be simulated with the model, including valve floating prediction for each cylinder during engine braking. The valvetrain model was used in the design of a diesel engine brake system and in the analysis of engine braking performance at the sea level and different high altitude and ambient temperature conditions. Valvetrain dynamics and the impact of EGR (exhaust gas recirculation) valve leakage or opening on engine braking performance were also evaluated.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2011-04-12
Book
2002-04-15
Training / Education
2017-11-08
Technical Paper / Journal Article
2011-04-12
Training / Education
2012-08-27
Training / Education
2017-09-22
Technical Paper / Journal Article
2011-04-12