A Nonlinear Feedforward-Feedback Controller Design for Electronic Throttle Based on Flatness
Electronic throttle is a dc-motor-driven valve that plays an important role to modulate airflow into the combustion system of an engine. However, it is difficult to design an effective controller to deal well with the inherent nonlinearity of the plant, such as the strong nonlinear effects of friction and return spring. In this paper, taking these factors into consideration, a controller is proposed: a nonlinear feedforward control is carried out in consideration of the system nonlinearities based on flatness, a linear feedback control is given to handle the uncertainties and disturbances. The simulation results verify the effectiveness of the proposed controller and its strong robustness to model uncertainties. Finally, the real time performance of the designed controller is tested by the Hardware in the Loop (HiL) platform based on xPC-Target. For all cases, the controller works rather well and meets the performance specifications.
Electronic throttle Nonlinear Flatness-based Feedforward Feedback
Xun Gong Yunfeng Hu Pengyuan Sun Hong Chen
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130025, P.R. Department of Control Science and Engineering, Jilin University, Changchun, 130025, P.R. China China FAW Group Corporation Research and Design Center, Changchun, 130011, P. R. China
国际会议
The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)
太原
英文
1554-1559
2012-05-23（万方平台首次上网日期，不代表论文的发表时间）