TY  - EJOU
AU  - Lu, Jiayu 
AU  - Chang, Siqin 

TI  - A Trajectory Planning-Based Energy-Optimal Method for an EMVT System
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2019
VL  - 118
IS  - 1
SN  - 1526-1506

AB  - In this paper, a trajectory planning-based energy-optimal method is proposed to reduce the energy consumption of novel electromagnetic valve train (EMVT). Firstly, an EMVT optimization model based on state equation was established. Then, the Gauss pseudospectral method (GPM) was used to plan energy-optimal trajectory. And a robust feedforward-feedback tracking controller based on inverse system method is proposed to track the energy-optimal trajectory. In order to verify the effectiveness of the energy-optimal trajectory, a test bench was established. Finally, co-simulations based on MATLAB Simulink and AVL Boost were carried out to illustrate the effect of energy-optimal trajectories on engine performance. Experimental results show that the robust tracking controller can achieve good position tracking performance. And these energy-optimal trajectories can save up to 40% of the energy consumption compared with the conventional camshaft valve trajectories.
KW  - Electromagnetic valve train
KW  -  energy optimization
KW  -  trajectory plan
KW  -  robust tracking control
KW  -  co-simulation

DO  - 10.31614/cmes.2019.04190