Zagadnienia strat mocy trakcyjnych silników prądu stałego przy obliczeniach energooszczędnych jazd pojazdów tramwajowych

The suitable control of the tram vehicle at various disturbances of the city traffic can ensure the electric energy savings equal to even 30 %. The author of this work continues with elaboration of computer software making possible realization of the tram vehicle run according to the criterion of the minimum energy use. In literature, the problem of the energy saving ride was solved for the tram vehicle only at the assumption that the running of the tram is realized without the traffic disturbances, for the separated, straight and horizontal tracks. Computer software for these idealized run conditions couldn't applied in real routs and literature methods weren't introduced to the energy saving control of tram vehicles. Within the original methodics of the author, the following new phenomena are taken into consideration: an influence of traffic disturbances, changes of motion resistances, interaction of different vehicles. In the typical, dynamical ride of a tram, great changes of values of motor losses occur within resistance, iron and mechanical losses. This effect has been here analysed and taken into account for algorithm of an energy saving traffic of a tram.