Continuous slow dynamic slope approach for stationary base internal combustion engine mapping
Apstrakt
Engine control optimization, with its always growing complexity, is in permanent focus of engine researchers and developers all over the world. Automotive engines are dominantly used in dynamic conditions, but generally, steady-state operating points are used for building up mathematical models which are later subject to the numerical optimization. For this purpose, a large amount of steady-state regimes needs to be evaluated through experimental work at the engine test stand, which is an extremely time and funds consuming process. Consequently, the methodology for data gathering during engine dynamic excitation could lead to significant savings at the expense of acceptable data accuracy loss. The slow dynamic slope method starting from a stationary operating point was evaluated by several authors in the past. In this paper, slow dynamic slope method with exclusively transient excitation will be presented drawing attention to some of its advantages and drawbacks. The rate of change of ...engine load as a main control parameter during dynamic test is of great importance for the quality of the final data and for total test duration. In this regard, several tests of different duration were applied for fixed engine speed values to cover engine speed-load usage domain. An approximation of stationary testing results obtained in this way could be used for evaluation of the map gradients and thus as a guideline for additional stationary tests based on design of experiment method.
Ključne reči:
slow dynamic slope / internal combustion engine / engine mapping / dynamic engine testingIzvor:
Thermal Science, 2020, 24, 1, 147-158Izdavač:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI190308171M
ISSN: 0354-9836
WoS: 000519548700013
Scopus: 2-s2.0-85103338624
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Mrđa, Predrag AU - Miljić, Nenad AU - Popović, Slobodan AU - Kitanović, Marko PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3328 AB - Engine control optimization, with its always growing complexity, is in permanent focus of engine researchers and developers all over the world. Automotive engines are dominantly used in dynamic conditions, but generally, steady-state operating points are used for building up mathematical models which are later subject to the numerical optimization. For this purpose, a large amount of steady-state regimes needs to be evaluated through experimental work at the engine test stand, which is an extremely time and funds consuming process. Consequently, the methodology for data gathering during engine dynamic excitation could lead to significant savings at the expense of acceptable data accuracy loss. The slow dynamic slope method starting from a stationary operating point was evaluated by several authors in the past. In this paper, slow dynamic slope method with exclusively transient excitation will be presented drawing attention to some of its advantages and drawbacks. The rate of change of engine load as a main control parameter during dynamic test is of great importance for the quality of the final data and for total test duration. In this regard, several tests of different duration were applied for fixed engine speed values to cover engine speed-load usage domain. An approximation of stationary testing results obtained in this way could be used for evaluation of the map gradients and thus as a guideline for additional stationary tests based on design of experiment method. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Continuous slow dynamic slope approach for stationary base internal combustion engine mapping EP - 158 IS - 1 SP - 147 VL - 24 DO - 10.2298/TSCI190308171M ER -
@article{ author = "Mrđa, Predrag and Miljić, Nenad and Popović, Slobodan and Kitanović, Marko", year = "2020", abstract = "Engine control optimization, with its always growing complexity, is in permanent focus of engine researchers and developers all over the world. Automotive engines are dominantly used in dynamic conditions, but generally, steady-state operating points are used for building up mathematical models which are later subject to the numerical optimization. For this purpose, a large amount of steady-state regimes needs to be evaluated through experimental work at the engine test stand, which is an extremely time and funds consuming process. Consequently, the methodology for data gathering during engine dynamic excitation could lead to significant savings at the expense of acceptable data accuracy loss. The slow dynamic slope method starting from a stationary operating point was evaluated by several authors in the past. In this paper, slow dynamic slope method with exclusively transient excitation will be presented drawing attention to some of its advantages and drawbacks. The rate of change of engine load as a main control parameter during dynamic test is of great importance for the quality of the final data and for total test duration. In this regard, several tests of different duration were applied for fixed engine speed values to cover engine speed-load usage domain. An approximation of stationary testing results obtained in this way could be used for evaluation of the map gradients and thus as a guideline for additional stationary tests based on design of experiment method.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Continuous slow dynamic slope approach for stationary base internal combustion engine mapping", pages = "158-147", number = "1", volume = "24", doi = "10.2298/TSCI190308171M" }
Mrđa, P., Miljić, N., Popović, S.,& Kitanović, M.. (2020). Continuous slow dynamic slope approach for stationary base internal combustion engine mapping. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 24(1), 147-158. https://doi.org/10.2298/TSCI190308171M
Mrđa P, Miljić N, Popović S, Kitanović M. Continuous slow dynamic slope approach for stationary base internal combustion engine mapping. in Thermal Science. 2020;24(1):147-158. doi:10.2298/TSCI190308171M .
Mrđa, Predrag, Miljić, Nenad, Popović, Slobodan, Kitanović, Marko, "Continuous slow dynamic slope approach for stationary base internal combustion engine mapping" in Thermal Science, 24, no. 1 (2020):147-158, https://doi.org/10.2298/TSCI190308171M . .