Control system design for variable nozzle turbocharger

Enhua Wang*, Shengzhi Xia, Minggao Ouyang, Jianqiu Li, Xihao Li

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

The electronic control system of the variable nozzle turbocharger (VNT) was designed. The actuator is the electro-hydraulic servo proportional solenoid. The signals of the engine pedal position sensor, the engine speed sensor, the boost pressure sensor, the intake air temperature sensor, and the ambient pressure sensor are sampled and filtered. The engine working condition is estimated. The control algorithm was designed as the closed-loop feedback digital PI control together with the open-loop feed forward control. The gain-scheduled PI control method is applied to improve the robustness. The control system was calibrated at the turbocharger test bench and the engine test bench. The results indicate the designed control system has good performance for the boost pressure control under the steady and transient conditions.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventNon-Conference Specific Technical Papers - 2009, WONLY 2009 - Warrendale, PA, United States
Duration: 25 Jul 201025 Jul 2010

Fingerprint

Dive into the research topics of 'Control system design for variable nozzle turbocharger'. Together they form a unique fingerprint.

Cite this

Wang, E., Xia, S., Ouyang, M., Li, J., & Li, X. (2009). Control system design for variable nozzle turbocharger. SAE Technical Papers. https://doi.org/10.4271/2009-01-1668