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A torque converter is an essential part of an automatic transmission. It is a hydrodynamic device that has most influence on the transient response of a vehicle such as gear shifting and vehicle launching. In order to study such characteristics accurately, dynamic analysis of the torque converter is necessary. The zero order torque converter model of Kotwicki has been widely used for control design...
Owing to huge casualty and environmental pollution caused by HNS(Hazardous and Noxious Substance) leakage, accurate prediction modeling must be crucial in coping with the accidents at the early stage. Our project finally aims to develop an engineering prediction model for accurate near-field prediction of diffusive behavior in risk regions, when HNS spills occur using CFD according to various environmental...
In this paper, the mobile robot equipped with a single ultrasonic sensor to measure the value of the distance between the mobile robot and the obstacle will be manipulated by a haptic joystick through the value of Force Feedback. Accordingly, the mobile robot will move based on the information of the ultrasonic sensor without colliding the obstacle to precise velocity control. Vibration part which...
The PMSM position sensor using two rectangular hall sensors can restrictively acquire the 90° position information of rotor according to electrical angle. Thus, the control method using this position sensor cannot react properly to a rapid load torque change. On the other hand, even though a sensorless method has the advantage of acquiring instantaneous rotor position information, the accuracy of...
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