The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach
Variable valve timing has been implemented by various manufacturers to improve internal combustion engine performance while operating at wide speed and load ranges. A novel flexible valve timing system for a small four-stroke engine is currently under development by Automotive Engineering Research G...
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| Format: | Conference or Workshop Item |
| Language: | English English |
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EDP Sciences
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/24108/ http://umpir.ump.edu.my/id/eprint/24108/1/47.%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf http://umpir.ump.edu.my/id/eprint/24108/2/47.1%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf |
| _version_ | 1848821953105756160 |
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| author | Mohd Razali, Hanipah M. Haziq Adham, Rosli M., Kettner |
| author_facet | Mohd Razali, Hanipah M. Haziq Adham, Rosli M., Kettner |
| author_sort | Mohd Razali, Hanipah |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Variable valve timing has been implemented by various manufacturers to improve internal combustion engine performance while operating at wide speed and load ranges. A novel flexible valve timing system for a small four-stroke engine is currently under development by Automotive Engineering Research Group (AERG) in Universiti Malaysia Pahang (UMP). In this paper, a compherenhensive intake and exhaust tuning for th flexible variable valve timing is presented. A numerical assessment has been conducted to the engine in a one dimensional engine simulation using validated simulation model. There are eight valve timing configurations investigated for the tuning for three speed regions. The simulation shows a positive and significant impact to the engine performance in three approaches; namely late intake valve closing, early intake valve closing and late exhaust valve closing. These approaches sufficiently covered the whole range of engine speeds. |
| first_indexed | 2025-11-15T02:33:32Z |
| format | Conference or Workshop Item |
| id | ump-24108 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T02:33:32Z |
| publishDate | 2019 |
| publisher | EDP Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-241082020-06-30T02:36:58Z http://umpir.ump.edu.my/id/eprint/24108/ The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach Mohd Razali, Hanipah M. Haziq Adham, Rosli M., Kettner TJ Mechanical engineering and machinery Variable valve timing has been implemented by various manufacturers to improve internal combustion engine performance while operating at wide speed and load ranges. A novel flexible valve timing system for a small four-stroke engine is currently under development by Automotive Engineering Research Group (AERG) in Universiti Malaysia Pahang (UMP). In this paper, a compherenhensive intake and exhaust tuning for th flexible variable valve timing is presented. A numerical assessment has been conducted to the engine in a one dimensional engine simulation using validated simulation model. There are eight valve timing configurations investigated for the tuning for three speed regions. The simulation shows a positive and significant impact to the engine performance in three approaches; namely late intake valve closing, early intake valve closing and late exhaust valve closing. These approaches sufficiently covered the whole range of engine speeds. EDP Sciences 2019-01 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24108/1/47.%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf pdf en http://umpir.ump.edu.my/id/eprint/24108/2/47.1%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf Mohd Razali, Hanipah and M. Haziq Adham, Rosli and M., Kettner (2019) The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach. In: Engineering Applications of Artificial Intelligence Conference 2018 , 3-5 December 2018 , Sutera Harbour Resort, Sabah, Malaysia. pp. 1-10., 255. ISSN 2261-236X (Published) https://doi.org/10.1051/matecconf/201925504004 |
| spellingShingle | TJ Mechanical engineering and machinery Mohd Razali, Hanipah M. Haziq Adham, Rosli M., Kettner The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title | The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title_full | The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title_fullStr | The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title_full_unstemmed | The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title_short | The tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| title_sort | tuning of a small four-stroke spark ignition engine for flexible valve timings through numerical approach |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/24108/ http://umpir.ump.edu.my/id/eprint/24108/ http://umpir.ump.edu.my/id/eprint/24108/1/47.%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf http://umpir.ump.edu.my/id/eprint/24108/2/47.1%20The%20tuning%20of%20a%20small%20four-stroke%20spark%20ignition.pdf |