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An experimental investigation is conducted to determine the behaviour of brushless PM synchronous machine parameters in the high speed flux weakening operating range. Real-time operating characteristics are determined for two commercially available 4 N·m interior PM synchronous machines. Special computer assisted measuring techniques are employed using an(More)
C This paper provides a design outline and implementation procedure for a Secondary Energy Storage Unit (SESU) that can be used to meet the peak energy requirements of an electric vehicle during both acceleration and regenerative braking. The life cycle of the electric vehicle’s batteries can be extended considerably by supplying peak energy requirements(More)
We develop a service that allows the current IEEE 802.11b MAC protocol to perform dynamic packet sizing and forward error correction. Our service, called ERSMAC, is designed to allow the deployment of the IEEE 802.11b protocol in industrial environments characterized by high BER and fast time variation. ERSMAC uses a maximum likelihood estimate of the BER(More)
The principle of a novel prefetching strategy, horizontal demand prefetching, is presented. This mechanism allows deep prefetching without jump-related misses by prefetching shallowly across several independent streams in a horizontal fashion. Multistream processors using this technique can achieve very high memory utilization. The mechanism supports very(More)
The general requirements for electrical equipment used in traction applications are reviewed. These requirements and conditions include high inertia load, smooth torque control over the full range, high reliability, low maintenance, high efficiency, low mass, extended weak-field range for the motors, high top speed, dynamic or regenerative braking, motor(More)
For a tandem manufacturing system with finite inter-stage storage and asynchronous operations, stage cycle times are allowed to vary from cycle to cycle and from stage to stage. Due to the nature of the operation and the occurrences of blocking and starvation, the relationship between the time each stage spends on each job and the output rate of the system(More)
Equivalent loading of induction machines are used to test machines for temperature rise and total losses without the need for attaching mechanical load to the shaft. During this process the line voltage and line currents are at rated RMS values. The two frequency method [1], has been used industrially [4, 5]. The results of a recent study by our group [7],(More)