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Electric power steering (EPS) is gradually replacing the conventional hydraulic power steering system in modern cars. The main advantages of EPS system are the ability to minimize energy consumption and its applicability to autonomous driving. This paper discusses the linear quadratic (LQ) control to reduce effort- and time-consuming manual tuning and improve steering feel compared to conventional...
Digital control of a general-purpose switching power supply is one of the key technologies to perform the high reliability and the intelligent function demanded for the next generation. The contribution of this paper is the development of a digital control-based switching power supply with the ability to overcome future's requirements such as fault detection, life-time estimation and self recovery...
This paper deals with the high-precision positioning control of a dual-stage feed drive. The control system is constructed using an equivalent-input-disturbance approach to improve the disturbance rejection performance. The design procedure is explained, and a numerical example demonstrates both the validity of the method and its advantages over a method based on a disturbance observer.
In recent years, a high-precision stage control has received great attention due to the progress of nano-technology. A fast-response and high-precision control method based on the internal model control in the case where the controlled object has the integral characteristic is reported. The disturbance observer-based internal model control (DIMC) system has the advantages of no-overshoot, easy-design...
In recent years, a high-precision stage has received great attention due to the progress of nano-technology. This paper presents a fast-response and high-precision control method based on the internal model control in the case where the controlled object has the integral characteristic. Firstly, we refer the problems when the internal model control (IMC) is applied to the integral plant. Next, in...
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