AN ELECTRIC COUNTER FOR DETERMINING THE RATE OF A FREE-SWINGING PENDULUM

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Treatment of the menopause: the swinging pendulum

Facts and views on the treatment of the menopause underwent dramatic swings during the last fifty years, from a non-issue fifty years ago to a must for the well-being of all postmenopausal women at the end of the 20 century. the enthusiasm for hormone replacement therapy (hRt) was smashed in 2002, after the publication of a large-scale prospective randomised study, the Whi trial, on health cost...

Asymptomatic hyperparathyroidism: is the pendulum swinging back?

A controller for swinging-up and stabilizing the inverted pendulum

The hybrid solution to the pendulum swinging-up and stabilizing problem introduced by Åström and Furuta is based in two steps: an energy injection and a linear stabilization around the desired inverted position. However the energy injection stage only considers the pendulum, and not the motion of the pivot. Furthermore, for the stabilization stage linear law, only a very small basin of attracti...

Swinging up a pendulum by energy control

Properties of simple strategies for swinging up an inverted pendulum are discussed. It is shown that the behavior critically depends on the ratio of the maximum acceleration of the pivot to the acceleration of gravity. A comparison of energy based strategies with minimum time strategy gives interesting insights into the robustness of minimum time solutions.