A control strategy was developed to improve fuel economy, enhance engine efficiency as well as extend battery cycle life in the series hybrid electric vehicle (SHEV) powertrain. The controller was based on fuzzy logic, fixedboundary-layer sliding mode controllers (FBLSMCs) and an optimized battery charge scenario. The fuzzy logic based energy management controller is developed to determine the ...

Power Semiconductor switches of active rectifier are characterized by highly nonlinear property, resulting in high harmonic distortion and high ripple voltage on the DC side. This paper presents advanced control using switch function and fuzzy logic for compensating nonlinear behaviour. The system applies switch function of time as the input of control strategy, instead of current and voltage i...

The idea of irrigation is not new, irrigation stems as far back as the Egyptians and probably further in unrecorded history. Even the idea of automated irrigation is not new, mankind has figured out how to irrigate large areas of foliage through the use of automated and drop irrigation systems. Efficient, automated irrigation systems, which can irrigate plants to a desired level and supply thos...

moving obstacles (opponent robots) and a moving target (ball). Until now, many navigation methods have been demonstrated for robot soccer. Sim et. al. [2] proposed a four-mode control structure which has different controllers for four divided areas around a ball. Kim et. al. [3,4] proposed the uni-vector field method. Selecting two points, one in front and the other at the back of the ball, the...

The use of regenerative braking systems is an important approach for improving the travel mileage electric vehicles, and auxiliary hydraulic energy recovery system can improve efficiency process. In this paper, we present algorithm optimizing a (HRBS) based on fuzzy Q-Learning (FQL). First, built test bench, which was used to verify accuracy simulation model. Second, combined HRBS with vehicle ...

Electric motors use 60% of the electrical energy generated in the U.S. An improvement of 1% in all electric motors’ operating efficiency could result in reduced coal combustion of 6.5 to 10 million tons* per year. New techniques are required to extract the ultimate performance from modern motors. This study examined the feasibility of Fuzzy Logic Motor Control (FLMC). The investigation included...

High Voltage Direct Current (HVDC) Transmission systems traditionally employ PI controllers with fixed proportional (P) and integral (I) gains Kp and Ki respectively. Although such controllers are robust and simple, they are not easily optimized to obtain the best performance under all conditions. In the field of intelligent control systems, fuzzy logic control and artificial neural network bas...

This paper develops a decentralized adaptive fuzzy control scheme for robot manipulators via a combination of genetic algorithm and gradient method. The controller for each link consists of a feedforward fuzzy torque-computing system and a feedback fuzzy PD system. The feedforward fuzzy system is trained and optimized off-line by an improved genetic algorithm, that is to say, not only the param...

The major work of intrusion detection systems is used to detect the anomaly and new attackers in the networks, even still various false alarms are caused in order to neglect this necessary feature. Existing system present an anomaly-based intrusion detection system to improve the system performance. Fuzzy rule-based modeling and fuzzy controller are used to create a detection model in the train...