Idle Speed Control for GDI Engines with Interval Time-Delay
The gasoline direct injection (GDI) engine is a highly non-linear and a delayed system. The engine modle with time-delays is derived. The delays consist of an intake to torque production state delay and a network -induced interval delay. Base on the Liapunov-Krasovskii function, the criterion of interval delay control system is proposed, which ensure the idle speed control system is stability as well as robust. The simulation results show that the H∞ control has good robustness,which improves the stability of the idle speed of the GDI engine.
X. J. Li et al., "Idle Speed Control for GDI Engines with Interval Time-Delay", Advanced Materials Research, Vols. 588-589, pp. 1598-1601, 2012