Control System Design for Variable Nozzle Turbocharger Beijing Automotive Technology Center

Format:

Conference/Event

Author/Creator:

Wang, Enhua, author.

Conference Name:

Non-Conference Specific Technical Papers - 2009

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

2009-01-1668

Access Restriction:

Restricted for use by site license