A Study on Predicting Backpressure in Mufflers with Exhaust Variable Valves
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265097
- Paper/Info type
- Proceedings (Spring)
No.23-26
- Pages
- 1-5(Total 5 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- English
- Event
- 2026 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) Yun Jeong Shim, 2) Jae Yeon Jo, 3) Yong Woo Mo, 4) Jeong Su Koo, 5) Jin Man Shin |
|---|---|
| Author(E) | 1) Yun Jeong Shim, 2) Jae Yeon Jo, 3) Yong Woo Mo, 4) Jeong Su Koo, 5) Jin Man Shin |
| Affiliation(J) | 1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) Sejong, 5) Sejong |
| Affiliation(E) | 1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) Sejong, 5) Sejong |
| Abstract(E) | This study proposes an integrated methodology for predicting the backpressure performance of mufflers equipped with variable valves by combining experimental and analytical approaches. An airflow rig-based evaluation system was developed to replicate internal combustion engine (ICE) and hybrid electric vehicle (HEV) operating conditions. To enhance one-dimensional (1-D) simulation accuracy, a novel parameter extraction technique was introduced. Furthermore, the influence of thermal aging on valve spring torque was investigated, revealing its significant impact on backpressure characteristics. The proposed approach improves the correlation between simulation and experimental results, enabling more accurate backpressure predictions. This advancement supports optimized exhaust system design and reduces development time during the early stages of vehicle development. |
