Title :
The current tracing control for BSG motor field current based on sliding mode current observer
Author :
Tengwei Yu ; Xudong Wang ; Bin Zhang
Author_Institution :
Eng. Res. Center of Automotive Electron. Driving Control & Syst. Integration, Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
On the basis of traditional electric excitation synchronous motor, BSG motors, adopting the mixed excitation technique, are widely used in mild-hybrid electric vehicle applications, but the nonlinearities of BSG motor excitation winding driving circuit and a variety of interference outside the engine compartment make it difficult for conventional PWM strategy to achieve the optimal output current. In this paper, a sliding mode observer approach is proposed, utilizing advantages that including good control robustness to conduct online setting. Simulation and experimental results show that the method enhances the system´s self adaptive capacity, improves the startup performance of BSG-hybrid cars, and has good current tracking performance, and low costing.
Keywords :
electric current control; hybrid electric vehicles; machine control; robust control; synchronous motors; variable structure systems; BSG motor excitation winding driving circuit; BSG motor field current; PWM strategy; control robustness; current tracing control; electric excitation synchronous motor; engine compartment; interference; mild-hybrid electric vehicle application; nonlinearities; optimal output current; sliding mode current observer; Educational institutions; MATLAB; Observers; Switches; BSG motor; SMC; current observer; current tracing;
Conference_Titel :
Strategic Technology (IFOST), 2011 6th International Forum on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-4577-0398-0
DOI :
10.1109/IFOST.2011.6021021