Abstract: The invention concerns a rail vehicle (1) comprising a first power supply unit (5) which has at least one, preferably at least two, fuel cells (7), at least one fuel storage (8) and a first fuel cell power converter (10). The first fuel cell power converter (10) comprises a DC/DC converter (12) for each fuel cell (7), the DC/DC converters (12) preferably have outputs which are connected in parallel. The first power supply unit (5) is preferably arranged in a powerpack (2).

Abstract: The present invention relates to a rail vehicle (22) comprising an energy storage device and a transformer (18) associated with the energy storage device; a rail vehicle carriage (24) comprising an energy storage device and a transformer (18) associated with the energy storage device; a method of operating a rail vehicle having an energy storage system (15); and a method of assembling a train composition. The rail vehicle (22) includes a rail vehicle carriage (24), traction equipment (6), a high-voltage conductor (5), a current collector (1), and an energy storage system (15) having an energy storage device. The traction equipment (6) comprises at least one traction power converter (9) and at least one traction motor (11). The high-voltage conductor (5) electrically connects the traction equipment (6) to the current collector (1). The energy storage device may be a battery (20).

Abstract: An electric vehicle, in particular a rail vehicle, with a current collection device (2). The current collection device has at least one contact device (2a, 2b). An electrically conductive contact, of the current collection device (2) to an external power supply (1), can be achieved by the contact device (2a, 2b). The vehicle comprises a DC link (11) and at least one electric traction motor (10). During normal driving operation, the current is conducted from the current collection device (2), via the DC link (11), into the one of the traction motors (10) and a current connection is formed between the contact device (2a, 2b) and the DC link (11). The current connection is at least partially bidirectional. A disconnecting device (5) is arranged between contact device (2a, 2b) and DC link (11). The disconnecting device (5) is designed to be interrupted unidirectionally.

Abstract: An electric vehicle, in particular a rail vehicle, with a current collection device (2). The current collection device has at least one contact device (2a, 2b). An electrically conductive contact, of the current collection device (2) to an external power supply (1), can be achieved by the contact device (2a, 2b). The vehicle comprises a DC link (11) and at least one electric traction motor (10). During normal driving operation, the current is conducted from the current collection device (2), via the DC link (11), into the one of the traction motors (10) and a current connection is formed between the contact device (2a, 2b) and the DC link (11). The current connection is at least partially bidirectional. A disconnecting device (5) is arranged between contact device (2a, 2b) and DC link (11). The disconnecting device (5) is designed to be interrupted unidirectionally.

Abstract: In order to optimize the failure safety of electrical and electronic components located in an engine compartment of a rail vehicle, which additionally comprises at least one driver's cab, the rail vehicle is operated with an air conditioning system, which is provided to generate overpressure in the engine compartment and to control the climate of the at least one driver's cab. The air conditioning system includes a first air guidance system to introduce fresh air into the at least one driver's cab and a second air guidance system to transmit at least one part of the fresh air introduced into the at least one driver's cab into the engine compartment.

Abstract: In order to optimize the failure safety of electrical and electronic components located in an engine compartment of a rail vehicle, which additionally comprises at least one driver's cab, the rail vehicle is operated with an air conditioning system, which is provided to generate overpressure in the engine compartment and to control the climate of the at least one driver's cab. The air conditioning system includes a first air guidance system to introduce fresh air into the at least one driver's cab and a second air guidance system to transmit at least one part of the fresh air introduced into the at least one driver's cab into the engine compartment.