A process for supervising an air conditioning system of a railway vehicle. The process comprising the following steps: a) after starting the air conditioning system, measuring physical properties relative to the refrigerant; b) from the physical properties measured during step a), calculating thermodynamic properties; c) from the thermodynamic properties calculated during step b), calculating the density, optionally averaged, of the refrigerant inside each component of the air conditioning system; d) using manufacturer data, which includes the dimensions of each component of the air conditioning system, calculating the passage volume of the refrigerant inside each component of the air conditioning system; e) using the values calculated in steps c) and d) to calculate the total mass of refrigerant contained inside the air conditioning system; and f) comparing the total mass of refrigerant calculated in step e) with the total mass of refrigerant originally contained inside the air conditioning system.

A high speed train power unit comprising: carbody that comprises: a roof; a floor; a driver's cab at a front end of the carbody; and a technical compartment that comprises: a low voltage zone that comprises an air conditioning unit designed to condition the driver's cab, wherein the air conditioning unit is on the roof, a traction zone that comprises a rheostatic brake on the roof, and a technical zone, wherein the low voltage zone, the traction zone, and the technical zone of the technical compartment are respectively located next to each other along a longitudinal axis of the power unit; at least two bogies mounted under the floor of the carbody; and a main transformer located under the carbody between the bogies.

A mixer, which forms the core part of an air-conditioning assembly of a rail vehicle, has two inlets, an outlet, and a central region between the inlets and the outlet. A first inlet is connected to a fresh air supply, and a second inlet is connected to a circulating air supply such that fresh air and circulating air reach the central region, where the circulating air is mixed with the fresh air to obtain supply air. The central region is connected to the fresh air inlet via an opening, which forms a transition region between the fresh air inlet and the central region. The transition region contains a profiled section with a wing-shaped cross-section in the transition region where the supplied fresh air generates negative pressure along the transition region, and the circulating air is suctioned into the central region of the mixer with a boost from the negative pressure.

The present invention relates to a power car (10) for a high-speed train, comprising a body (12) and at least one power car of said body, said body comprising a roof (19) and a floor (20); the traction motor being arranged below said floor, the body further comprising an equipment room (24) defined between said roof and said floor, said technical room including: electrical equipment (33) for controlling the traction motor; and at least one fan device (34) of said electrical equipment. The ventilation device comprises: an air intake sheath (36), forming a closed pipe between an inlet (38) and an outlet (40) open on the equipment room; and a fan (42) arranged between the inlet and the outlet, so as to create an overpressure in the technical room.

The present invention relates to a power car for a high-speed train, including: a body; a traction motor; a rheostatic brake; a first ventilation device of said rheostatic brake; electrical control equipment; and a second ventilation device for said electrical equipment. The first ventilation device comprises a first air intake sheath, the inlet and outlet of which are located on the roof of the body. The second ventilation device comprises a second sheath, the inlet and outlet of which are respectively located on the roof of the body and below the body. Each ventilation device comprises a fan arranged in one of the sheaths.

A detector detects physical quantities relating to an operation of a vehicle air-conditioning device at a predetermined sampling frequency to generate groups of time-series data items. A volatile tracking memory has a work area to which the groups of time-series data items for a tracking period is writable. A record holding power accumulator supplies, to the tracking memory, power used for holding in the work area the groups of time-series data items. A writer sequentially overwrites the groups of time-series data to the work area of the tracking memory and stops overwriting of the groups of time-series data items to the work area when an abnormality occurs in the vehicle air-conditioning device.

A rail-bound vehicle includes an energy storage device having a traction battery and a cooling device for cooling the traction battery using a coolant circulating in at least one coolant circuit. The energy storage device supplies a traction device of the vehicle with electrical energy. At least one air-conditioning device air conditions a passenger compartment of a car of the vehicle using a refrigerant circulating in a refrigerant circuit, and a control device controls the air-conditioning device. The air-conditioning device has a heat exchanger coupling the refrigerant circuit of the air-conditioning device to the coolant circuit of the cooling device of the energy storage device. The control device controls a flow of the refrigerant through the heat exchanger. An energy storage device, an air-conditioning device, an arrangement for cooling a traction battery and a method for controlling the arrangement are also provided.

A system includes an actuator that produces heat or cold onboard an electric vehicle and a controller that generates an operating command to control the actuator to deliver a first average power over a predetermined time period based on one or more climatic conditions and based on a vehicle energy parameter. The vehicle energy parameter indicates whether (a) the electric vehicle or another electric vehicle is consuming electric energy or (b) the electric vehicle or another electric vehicle is producing the electric energy. The controller generates the operating command such that the first average power delivered by the actuator during the predetermined time period has substantially the same value as a second average power delivered by the actuator when the controller generates the operating command based only on the one or more climatic conditions.

A railway vehicle air conditioning management system according to the present invention includes a railway vehicle air-conditioning device installed in a railway vehicle, having a refrigerant circuit configured by including at least a compressor, a heat source side heat exchanger, a decompression device and a load side heat exchanger, and air-conditions an inside of the railway vehicle by circulating refrigerant in the refrigerant circuit, and a management device having a recording device in which vehicle air conditioning data including data showing operating states of the railway vehicle air-conditioning devices in a plurality of the railway vehicles are recorded, the railway vehicle air-conditioning device performs a special operation of operating in a pattern set in advance, in a state without humans in the railway vehicle, and the management device causes the recording device to record the vehicle air conditioning data including data showing the operating state in the special operation.

A rail car air-conditioning device is equipped with: a refrigerant circuit that has a compressor and an outdoor heat exchanger; an outdoor blower; a compressor operation frequency deriver that derives a compressor operation frequency of the compressor on the basis of a rail car interior setting temperature and a rail car interior temperature; an inverter for compressor use that drives the compressor at the compressor operation frequency; an outdoor blower operation frequency deriver that, in accordance with a predetermined correspondence relationship, derives a blower operation frequency of the outdoor blower corresponding to the compressor operation frequency; and an inverter for outdoor blower use that drives the outdoor blower at the blower operation frequency. The outdoor blower operation frequency deriver has a highly energy efficient energy-saving mode and a low-energy efficiency low-noise mode, and can switch between the energy-saving mode and the low-noise mode.