Abstract
Electronic throttle is widely used in modern automotive engines. An electronic throttle system regulates the throttle plate angle by using a DC servo motor to adjust the inlet airflow rate of an internal combustion engine. Its application leads to improvements in vehicle drivability, fuel economy, and emissions. In this paper, by taking into account the dynamical behavior of the electronic throttle, the mechanism model is first built, and then the mechanism model is transformed into the state-space model. Based on the state-space model and using the backstepping design technique, a new backstepping controller is developed for the electronic throttle. The proposed controller can make the actual angle of the electronic throttle track its set point with the satisfactory performance. Finally, a computer simulation is performed, and simulation results verify that the proposed control system can achieve favorable tracking performance.
Highlights
In recent years, many functions of modern automobiles are shifting from a purely mechanical to an electromechanical implementation
We focus on the control strategy of the electronic throttle system, which is one of the important drive-by-wire systems in the automobile industry
In automotive spark ignition engines, the air coming into the intake manifold and the power generated strongly depend on the angular position of a throttle valve [12]
Summary
Many functions of modern automobiles are shifting from a purely mechanical to an electromechanical implementation. In [10], a new intelligent fuzzy controller is proposed It can handle the nonlinear hysteretic of electronic throttle. In [13], a process to design the control strategy is proposed for a vehicle with the electronic throttle control and the automatic transmission, and the dynamic programming. Motivated by the advantage of the backstepping design method, this paper investigates the backstepping control problem of the electronic throttle. Since the backstepping design technique is a typical model-based design method, the dynamical model of the electronic throttle is first built in this paper. Based on the proposed dynamical model, the backstepping control design method for the electronic throttle is presented. The proposed backstepping controller can achieve the satisfactory performance; that is, the actual angular of the electronic throttle can track its set point.
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