A heating, ventilating, and air conditioning (HVAC) system of a vehicle is provided. The system replaces a cooling water circuit having a complex configuration and a separate heat pump system for recovering waste heat of an electric vehicle by changing an air flow path for supplying heating and cooling air and secures an indoor space by disposing an HVAC in an engine room.

To sufficiently improve the distortion stiffness of a vehicle body in a case in which no floor tunnel largely bulging upward from a floor panel is provided. A vehicle-body structure includes a floor panel constituting a floor of an occupant space including a seat on which a passenger is to sit, a cross member provided at a rear portion of the floor panel and extending in a vehicle width direction, a center frame disposed to be higher than and away from the floor panel at a vehicle-width-direction central portion of the occupant space and extending in a vehicle front-rear direction, and a connecting member connecting the cross member and a rear portion of the center frame.

A thermal management system for a vehicle includes a base circuit in which a compressor, a condenser, an expansion valve, and an evaporator are provided in order and in which a refrigerant is circulated, a recirculation circuit branched from a discharge portion of the compressor in the base circuit and joined to an inlet portion of the compressor so that the refrigerant discharged from the compressor is recirculated to an inlet of the compressor, and an adjusting valve positioned at the discharge portion where the recirculation circuit is branched from the base circuit or positioned at the inlet portion where the recirculation circuit is joined to the base circuit, the adjusting valve configured to adjust a flow rate of the refrigerant that flows to the recirculation circuit.

A method for controlling an air conditioning device of an electrified vehicle includes determining, by a controller, whether an active air flap is closed in response to an operation signal of the active air flap of the electrified vehicle, when an electric compressor provided in an air conditioner of the air conditioning device of the electrified vehicle is operated, when the active air flap is closed, controlling, by the controller, opening of an intake door provided in the air conditioning device to increase an amount of internal circulating air of the air conditioner, and when the amount of the internal circulating air of the air conditioner is increased, decreasing, by the controller, a speed of the electric compressor.

The invention relates to a refrigerant circuit (10) of a vehicle air-conditioning system (12), in particular for electric vehicles, comprising a compressor unit (14) which includes a first compressor (16) and a second compressor (18) arranged downstream for compressing a refrigerant (20), a condenser (22) for heating air (24) which can be supplied to a vehicle interior, a first pressure reducing unit (26) arranged downstream of the condenser (22) for decompressing the refrigerant (20) from the condenser (22), a heat exchanger (28) through which refrigerant flows for heat exchange with vehicle ambient air (30), an evaporator (32) for cooling air (24) which can be supplied to a vehicle interior, and a second pressure reducing unit (34) arranged upstream of the evaporator (32) for decompressing the refrigerant (20) from the heat exchanger (28), the second compressor (18), the condenser (22) and the first pressure reducing unit (26) being bypassed in a cooling mode of the vehicle air-conditioning system (12), and the evaporator (32) and the second pressure reducing unit (34) being bypassed in a heating mode of the vehicle air-conditioning system (12). The invention furthermore relates to a method of air-conditioning a vehicle interior, in particular by means of the refrigerant circuit (10) described above.

A cooling module for an electric or hybrid motor vehicle, through which an air flow is intended to pass, having a set of heat exchangers including a first heat exchanger and a second heat exchanger; a fan casing disposed downstream, the fan casing having an outlet for the air flow; a tangential turbomachine configured so as to generate the air flow; the cooling module further including: an air discharge vent disposed downstream of the outlet for the air flow of the fan casing; and a bypass connecting the outlet for the air flow to an opening upstream of the set of heat exchangers; the air discharge vent having a closure device configured so as to redirect the air flow from the outlet towards the outside of the vehicle when in the discharge position and to redirect the air flow towards the bypass when in the recirculation position.

The present application discloses an electric vehicle, and a heating cavity assembly of an electric heater of the electric vehicle. The heating cavity assembly includes: an electric heating unit, located in a heating cavity and configured to convert electric energy into heat energy; a flow channel structure, located in a heat exchange cavity, configured to allow a heat transfer medium passing through the flow channel structure to receive heat energy from the electric heating unit and including a plurality of medium flow channels, wherein the plurality of medium flow channels extend in parallel to each other along respective extension track lines with a translation relationship.

An air conditioning system for an electric transport vehicle supplied by an electrical supply network includes at least one actuator for the production of heat or cold, and a regulator configured in order to generate at least one operating command applied to the at least one actuator as a function of values for parameters representing the climatic conditions, the actuator delivering an average power over a predetermined time period. The regulator are configured in order to generate at least one operating command applied to at least one actuator as a function moreover of the value for a parameter relating to at least one electric transport vehicle supplied by the electrical supply network, the value for the parameter indicating that electrical energy is consumed by the at least one electric transport vehicle or that electrical energy is produced by the at least one electric vehicle.

An internal heat exchanger (IHX) assembly for use in a vehicle includes at least three plates joined together to form two or more separate compartments or channels and at least one flat structure on an external surface of the IHX assembly. One compartment or channel contains a high pressure fluid and the other compartment or channel contains a low pressure fluid. The compartment or channel containing the high pressure fluid is in thermal communication with the compartment or channel containing the low pressure fluid, such that heat is transferred from the high pressure fluid to the low pressure fluid. The IHX assembly acts as a structural member in the vehicle upon which one or more refrigerant components are mounted onto the flat structure.

The invention relates to a fuel cell vehicle (200), in which the driver has more influence on the consumption and the dynamic of the vehicle (200). This is achieved by the fuel cell vehicle (200) comprising at least one sensor for detecting a first driver input and a control unit (60). The control unit (60) is configured to operate the fuel cell vehicle (200) in one of a plurality of operating modes depending on the first driver input, wherein a power consumption P.sub.AC of the air-conditioning system (70), an operating range of the fuel cell stack (10), and a transfer function for determining the power demand P.sub.EM from the second driver input are varied depending on the selected operating mode. It is provided that the driver has at least five different operating modes available, which differ in particular with respect to the available driving dynamic, the fuel consumption, and the adjustable comfort.