1599results about "Trolley lines" patented technology

The invention relates to systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.

Electrical connectivity devices for railway systems are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are metals or conductive non-metals or metal plated non-metals. The micron conductive fibers may be metal fiber or metal plated fiber. Further, the metal plated fiber may be formed by plating metal onto a metal fiber or by plating metal onto a non-metal fiber. Any platable fiber may be used as the core for a non-metal fiber. Superconductor metals may also be used as micron conductive fibers and / or as metal plating onto fibers in the present invention.

The invention discloses an electrified railway power grid system without any negative sequence or spaced power supply networks in a whole process. The electrified railway power grid system consists of an external power supply system and an internal power supply system. In external power supply, single-phase power supply is changed into double-phase power supply, and a single phase alpha and a single phase beta are input into an internal power supply system through contactors alpha' and beta' of the left and right arms of a double-phase pantograph. In internal power supply, when a double-phase pantograph T1 rises and a double-phase pantograph T2 falls, the single phase alpha is used for supplying power to a motor train unit, and the single phase beta is used for charging a storage battery; when T2 rises and T1 falls, the single phase alpha is used for supplying power to the storage battery, and the single phase beta is used for supplying power to the motor train unit. When both the double-phase pantograph T1 and the double-phase pantograph T2 fall, the storage battery is used for supplying power to the motor train unit under the condition of no external power supply. Power supply networks are not arranged at intervals in a plurality of running regions, a split-phase neutral segment is not provided, the power supply networks do not need mechanical support, and the motor train unit can run normally.