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Semiconductor and LCD manufacturing equipment, which needs to position the stage in high-speed and high-precision, has been developed on both the mechanism and control. The experimental results, however, is often different from theoretical results because of a cable disturbance caused by such power cables and communication lines. Therefore, in order to eliminate the high-voltage cable disturbance,...
In-wheel motors (IWMs) in electric vehicles are particularly important for motion control. A conventional IWM is powered from a battery aboard the vehicle via cables. Since power cables and signal cables of an IWM are exposed to harsh environments, they can possibly become disconnected by high acceleration or vibration. In order to overcome this problem, the wireless-in wheel motor (W-IWM) has been...
Adopting the In-Wheel Motor technology (IWM) for the traction system of electric vehicles (EVs) leads to several advantages. Since the motors can drive each wheel in the vehicle independently, the EV can take full advantages of technologies such as anti-slip control of tires for enhanced safety and performance, and optimal torque distribution for extension of the vehicle mileage. However, a major...
Electric Vehicles (EVs) are used widely because of their environmental benefits. Above all, the in-wheel motor system has excellent performance with regards to motion control [1] [2]. On the other hand, the power lines and signal lines of the in-wheel motor system are exposed to the external environment. In addition, the power and signal lines might become disconnected between the car chassis and...
In order to improve motion control performance of electric vehicles (EVs), In-Wheel Motor (IWM) is the most preferred electric motor arrangement. Our research group has proposed Wireless In-Wheel Motor (W-IWM) concept to solve some technical problems of an IWM, which are reliability and safety issues of power and signal wires. In this research, we did a stability analysis of Series-Series compensated...
This paper describes the electromagnetic interference (EMI) characteristics of active implantable medical devices based on assessments of Radio Frequency Identification interrogators. Typical examples of interrogators operating in various RF bands are tested to estimate the EMI experienced by implantable-cardiac pacemakers and -cardioverter-defibrillators. The EMI occurrence mechanism and some experimental...
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