A method and an arrangement for operating a storage and retrieval unit (3) are specified. A rail line (1) respectively a power supply rail (6) for the storage and retrieval unit (3) is set to a risk mode voltage, the rectified value/effective value of which lies below a minimum rectified value/minimum effective value necessary to move the storage and retrieval unit (3) but above zero, if a risk posed by the storage and retrieval unit (3) is detected. Alternatively or in addition, the voltage applied to the rail line (1)/power supply rail (6) can also be investigated in the storage and retrieval unit (3) for modulated change signals. The applied voltage is passed on to a traction motor (5) of the storage and retrieval unit (3) only when it has been established that the normal operation-traction voltage and not the risk mode voltage has been applied to the rail line (1)/power supply rail (6).

An operating mode determining unit determines an operating mode of each of a plurality of vehicles to be either one of a normal operating mode and an energy saving mode on the basis of a necessary boarding and alighting time which is required to allow passengers to board or alight from the vehicles at each of a plurality of stations. An index value specifying unit specifies an index value on the basis of total energy consumption when the vehicles operate in the operating mode determined by the operating mode determining unit, a difference between the necessary boarding and alighting time and a boarding and alighting time, or the number of changing times of operating modes. An operating plan determining unit determines the operating mode of each of the vehicles to be an operating mode having a smallest index value.

An operating mode determining unit determines an operating mode of each of a plurality of vehicles to be either one of a normal operating mode and an energy saving mode on the basis of a necessary boarding and alighting time which is required to allow passengers to board or alight from the vehicles at each of a plurality of stations. An index value specifying unit specifies an index value on the basis of total energy consumption when the vehicles operate in the operating mode determined by the operating mode determining unit, a difference between the necessary boarding and alighting time and a boarding and alighting time, or the number of changing times of operating modes. An operating plan determining unit determines the operating mode of each of the vehicles to be an operating mode having a smallest index value.

An operating mode determining unit determines an operating mode of each of a plurality of vehicles to be either one of a normal operating mode and an energy saving mode on the basis of a necessary boarding and alighting time which is required to allow passengers to board or alight from the vehicles at each of a plurality of stations. An index value specifying unit specifies an index value on the basis of total energy consumption when the vehicles operate in the operating mode determined by the operating mode determining unit, a difference between the necessary boarding and alighting time and a boarding and alighting time, or the number of changing times of operating modes. An operating plan determining unit determines the operating mode of each of the vehicles to be an operating mode having a smallest index value.

An electrical traction system for an industrial electric vehicle is described. The electrical traction system includes an electrical energy storage device having a storage electrical potential, a DC drivetrain bus having at a drivetrain electrical potential, an electric power converter provided between the electrical energy storage device and the DC drivetrain bus, at least one electric motor, at least one traction inverter provided between the DC drivetrain bus and the at least one electric motor for driving the at least one electric motor, and an electrical interface assembly directly connected to the DC drivetrain bus for receiving an electric power from an electrical power supply system. The electrical interface assembly includes at least one interface for receiving power while the industrial electric vehicle is stationary, and for receiving power while the industrial electric vehicle is moving.

An electrical traction system for an industrial electric vehicle is described. The electrical traction system includes an electrical energy storage device having a storage electrical potential, a DC drivetrain bus having at a drivetrain electrical potential, an electric power converter provided between the electrical energy storage device and the DC drivetrain bus, at least one electric motor, at least one traction inverter provided between the DC drivetrain bus and the at least one electric motor for driving the at least one electric motor, and an electrical interface assembly directly connected to the DC drivetrain bus for receiving an electric power from an electrical power supply system. The electrical interface assembly includes at least one interface for receiving power while the industrial electric vehicle is stationary, and for receiving power while the industrial electric vehicle is moving.

The invention relates to a vehicle for transporting a biological sample, the vehicle being movable on a circuit, the circuit comprising: an input path, a first output path and a second output path, a turn-off enabling the vehicle travelling on the input path to be redirected to the first output path or the second output path, a first guide path extending along the input path, the turn-off and the first output path, a guide device which can be configured in: a first configuration in which the guide device cooperates with the first guide path so as to direct the vehicle to the first output path when the vehicle passes through the turn-off, a second configuration in which the guide device does not cooperate with the first guide path, enabling the vehicle to reach the second output path.

The invention relates to a vehicle for transporting a biological sample, the vehicle being movable on a circuit, the circuit comprising: an input path, a first output path and a second output path, a turn-off enabling the vehicle travelling on the input path to be redirected to the first output path or the second output path, a first guide path extending along the input path, the turn-off and the first output path, a guide device which can be configured in: a first configuration in which the guide device cooperates with the first guide path so as to direct the vehicle to the first output path when the vehicle passes through the turn-off, a second configuration in which the guide device does not cooperate with the first guide path, enabling the vehicle to reach the second output path.

The invention relates to an energy-supplying double-deck carriage, in particular a passenger double-deck carriage, for power supply, in which a main transformer is arranged in the roof region, preferably on or at the roof, and moreover preferably substantially above a bogie.

The invention relates to an energy-supplying double-deck carriage, in particular a passenger double-deck carriage, for power supply, in which a main transformer is arranged in the roof region, preferably on or at the roof, and moreover preferably substantially above a bogie.