Real-time crankshaft angular speed tracking and indicated torque estimation via optimized Luenberger sliding mode observer

2nd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Zhang, Y.^1 ; Tan, R.^1 ; Zheng, T.X.^1 ; Zhou, T.L.^2 ; Han, W.M.^2 ; Wang, Y.J.^2

School of Advanced Manufacturing Engineering, Chongqing University of Posts and Telecommunications, Chongqing

400065, China^1

School of Automation, Chongqing University of Posts and Telecommunications, Chongqing

400065, China^2

关键词: Angular speed;    Drive cycles;    Indicated torque;    Lyapunov stability theory;    Real time;    Sliding mode observers;    Steady state;    Track speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/59/1/012019/pdf
DOI  :  10.1088/1755-1315/59/1/012019

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The interest in engine indicated torque estimation plays an important role in the automotive industry. In this study, an optimized Luenberger sliding mode observer is proposed based on easily available crankshaft angular speed of a four-cylinder spark ignition (SI) engine. Especially, the new observer is applied to track crankshaft angular speed and estimate engine indicated torque in New European Drive Cycle (NEDC). Convergence is proven through Lyapunov stability theory. The experimental results show that the proposed estimated technique can effectively track speed and has a higher accuracy in steady state.