GAIN-SCHEDULED EGR CONTROL ALGORITHM FOR LIGHT-DUTY DIESEL ENGINES WITH STATIC-GAIN PARAMETER MODELING
- Title
- GAIN-SCHEDULED EGR CONTROL ALGORITHM FOR LIGHT-DUTY DIESEL ENGINES WITH STATIC-GAIN PARAMETER MODELING
- Author
- 선우명호
- Keywords
- Diesel engine; Exhaust gas recirculation; Variable geometry turbocharger; Skogestad internal model control; Linear parameter varying; Gain scheduling
- Issue Date
- 2017-08
- Publisher
- KOREAN SOC AUTOMOTIVE ENGINEERS-KSAE
- Citation
- INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, v. 18, no. 4, page. 579-587
- Abstract
- This paper presents a model-based gain scheduling algorithm of a PI-based EGR controller for light-duty diesel engines. In order to capture nonlinear characteristic of the EGR system, we have proposed a new scheduling variable to illustrate the static-gain of the plant model as a linear function. The proposed scheduling variable is composed of the air-tofuel ratio of the exhaust gas and the pressure ratio between the exhaust and intake manifolds. Using the scheduling variable, a static-gain model achieved 0.94 of the R-squared value with 810 of steady-state measurements which include key engine operating conditions. Based on the model of the static-gain parameter, the gains of the PI controller are decided by Skogestad internal model control (SIMC) tuning rule in real-time. Through various scenarios of engine experiments, the proposed gain scheduling algorithm represented that the PI gains were successfully adapted according to the changes of the engine operating conditions.
- URI
- https://link.springer.com/article/10.1007%2Fs12239-017-0058-9https://repository.hanyang.ac.kr/handle/20.500.11754/115253
- ISSN
- 1229-9138; 1976-3832
- DOI
- 10.1007/s12239-017-0058-9
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > AUTOMOTIVE ENGINEERING(미래자동차공학과) > Articles
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