Abstract: A control system and method for a heating system of an electric vehicle or hybrid vehicle is embodied such that when there is a heating request for a passenger compartment of the vehicle, a heating mode is set in order to heat the passenger compartment by heat from a heating circuit. In a mixed mode, an excess heat in the heating circuit is output to the surroundings, or in an excess mode, the excess heat is retained in the heating system, in order to satisfy a heating request. In the mixed mode, a degree of opening of the heating circuit is set such that only a partial quantity of coolant from the heating circuit is exchanged with a cooling circuit. The mixed mode is activated if the excess heat in the heating circuit exceeds a threshold value which is determined in accordance with an external temperature.

Abstract: A thermal system for a motor vehicle has a coolant-conducting HVS circuit connected to a traction battery, a heating circuit controlling the temperature of a passenger compartment thermally coupled to the HVS circuit, a cooling circuit connected to a heat source and fluidically coupled to the HVS circuit to transfer to the traction battery heat provided by the heat source and transported by the coolant, and a control device configured to, during the heating of the traction battery, branch off at least a proportion of the heat before the transfer to the traction battery and transmit said proportion of the heat into the heating circuit to precondition the heating circuit.

Abstract: A control system for a heating system of an electric or hybrid vehicle with a coolant cooled high voltage store. The control system includes an air conditioning evaporator of a refrigeration circuit of the heating system through which refrigerant circulates to cool the passenger compartment when a cooling requirement for a passenger compartment of the vehicle and for which an air conditioning cooling mode is set. The system further includes a chiller to cool the high voltage store when a cooling requirement for the high voltage store of the vehicle and for which a high voltage store (HVS) cooling mode is set. The control system selects the regulating variable for the compressor from a plurality of different regulating variables based on whether the air conditioning cooling mode is set, whether the HVS cooling mode is set, and/or whether both the air conditioning cooling and HVS cooling modes are set.

Abstract: A heat pump system for air conditioning a vehicle, in particular an electric or hybrid vehicle, includes an air conditioning unit which has an air conditioning evaporator and a heating heat exchanger, for air conditioning a passenger compartment of the vehicle. A condenser transmits heat from a refrigeration circuit into a coolant circuit, and a chiller transmits heat from the coolant circuit into the refrigeration circuit. The coolant circuit has two branches which are parallel to one another downstream of a low temperature cooler, namely a heating branch which can be shut off and in which the condenser and the heating heat exchanger are arranged, and a cooling branch, in which the chiller and a low temperature heat exchanger for cooling a vehicle component are arranged. The low temperature cooler, the condenser and the heating heat exchanger are connected in series with respect to one another. The heat pump system has a plurality of operating modes.

Abstract: An aeration flap is automatically controlled in a fully variable manner in a vehicle. A target value is read for a flap position or strength of an airflow of an aeration outlet. A plurality of configurations of aeration flap positions are provided wherein each configuration assigns a resultant noise level and a resultant energy demand for each combination of aeration flap positions. A weighting between noise level and energy demand is specified. Each of the read target values are adapted for a flap position or strength of an airflow according to the specified weighting. The development of noise in the vehicle may be influenced advantageously as a result.

Abstract: A control system for a heating system of an electric or hybrid vehicle with a coolant cooled high voltage store. The control system includes an air conditioning evaporator of a refrigeration circuit of the heating system through which refrigerant circulates to cool the passenger compartment when a cooling requirement for a passenger compartment of the vehicle and for which an air conditioning cooling mode is set. The system further includes a chiller to cool the high voltage store when a cooling requirement for the high voltage store of the vehicle and for which a high voltage store (HVS) cooling mode is set. The control system selects the regulating variable for the compressor from a plurality of different regulating variables based on whether the air conditioning cooling mode is set, whether the HVS cooling mode is set, and/or whether both the air conditioning cooling and HVS cooling modes are set.

Abstract: A control system and method for a heating system of an electric vehicle or hybrid vehicle is embodied such that when there is a heating request for a passenger compartment of the vehicle, a heating mode is set in order to heat the passenger compartment by heat from a heating circuit. In a mixed mode, excess heat in the heating circuit is output to the surroundings via a surroundings cooler in a cooling circuit, or in an excess mode it is retained in the heating system, in order to satisfy a heating request. In the mixed mode, a degree of opening of the heating circuit is set such that only a partial quantity of coolant from the heating circuit is exchanged with the cooling circuit and as a result the excess heat is output to the surroundings. The mixed mode is activated if the excess heat in the heating circuit exceeds a threshold value which is determined in accordance with the external temperature.

Abstract: A control system method is disclosed for air-conditioning a vehicle by a heat pump system, wherein one of multiple operating modes is automatically set, depending on the air-conditioning requirement. The passenger space is cooled by an air-conditioning evaporator and/or is heated by a heating heat exchanger. The heating heat exchanger is arranged in a heating branch of a coolant circuit and is provided with heat via a heat pump. If cooling is required, the heating branch is opened and the heating pump is deactivated. If heating is required, the heating branch is closed and heat is fed to the heating heat exchanger via the heat pump. In order to remove heat from the heating branch, same is opened and a low-temperature cooler, the condenser and the heating heat exchanger are operated connected in series.

Abstract: A heat pump system for climate control of an electric or hybrid vehicle includes an air conditioning unit having a heating heat exchanger, and an air conditioning unit evaporator having a refrigeration circuit, in which the air conditioning unit evaporator and a condenser are arranged. The refrigeration circuit includes a low temperature (LT) circuit in which at least one electrical power component is arranged. The heat pump system is configured to switch over between a cooling mode and a heating mode. The condenser, which is configured to transfer heat into the LT circuit, and an LT cooler are incorporated into the LT circuit. In the heating mode, the condenser outputs heat into the LT circuit and from there into a heating circuit, in which the heating heat exchanger is arranged, and in the cooling mode, the condenser outputs heat via the LT circuit to the LT cooler.

Abstract: A heat pump circuit has the following components when seen in the flow direction: a compressor; a condenser or gas cooler; a first coolant/air heat exchanger as a sub-cooler, via which the coolant dispenses heat; a first expansion element; a first coolant/air heat exchanger, via which the coolant absorbs heat from the ambient air; a second expansion element; and a third coolant/air heat exchanger, via which the coolant absorbs heat from the ambient air. The arrangement of the heat exchanger is in front of the drive engine relative to the travel direction. The danger of the ambient heat exchanger freezing is minimized. With this arrangement.

Abstract: A vehicle has a drive motor and a refrigerant circuit. The refrigerant circuit includes, when viewed in the direction of flow of the refrigerant, a compressor, a gas cooler or condenser, an expansion device and an evaporator. The refrigerant circuit has a first shut-off element which is arranged outside of an area arranged between the drive motor and the evaporator.

Abstract: An air-conditioning device for air-conditioning a passenger compartment is provided. The air-conditioning device includes a cooling element for cooling air, an air duct downstream of the cooling element for guiding the air, a heating element downstream of the air duct for warming the air, a mixing zone downstream of the heating element, and multiple air outlets for discharging multiple partial air streams from the mixing zone into different regions of the passenger compartment. An additional cold air bypass is formed which is guided past the heating element for supplying additional cold air downstream of the heating element. As a result, the air-conditioning device in operation is particularly efficient and simultaneously simple in design and particularly cost-effective. Furthermore, the invention provides a method for operating the air-conditioning device.

Abstract: A heat pump system for air conditioning a vehicle, in particular an electric or hybrid vehicle, includes an air conditioning unit which has an air conditioning evaporator and a heating heat exchanger, for air conditioning a passenger compartment of the vehicle. A condenser transmits heat from a refrigeration circuit into a coolant circuit, and a chiller transmits heat from the coolant circuit into the refrigeration circuit. The coolant circuit has two branches which are parallel to one another downstream of a low temperature cooler, namely a heating branch which can be shut off and in which the condenser and the heating heat exchanger are arranged, and a cooling branch, in which the chiller and a low temperature heat exchanger for cooling a vehicle component are arranged. The low temperature cooler, the condenser and the heating heat exchanger are connected in series with respect to one another. The heat pump system has a plurality of operating modes.

Abstract: A control system method is disclosed for air-conditioning a vehicle by a heat pump system, wherein one of multiple operating modes is automatically set, depending on the air-conditioning requirement. The passenger space is cooled by an air-conditioning evaporator and/or is heated by a heating heat exchanger. The heating heat exchanger is arranged in a heating branch of a coolant circuit and is provided with heat via a heat pump. If cooling is required, the heating branch is opened and the heating pump is deactivated. If heating is required, the heating branch is closed and heat is fed to the heating heat exchanger via the heat pump. In order to remove heat from the heating branch, same is opened and a low-temperature cooler, the condenser and the heating heat exchanger are operated connected in series.

Abstract: A method of heating the interior of a vehicle is provided. The vehicle has a central heating system and several decentralized heating surfaces constructed as infrared radiators. The temperature of the vehicle interior is controllable by the central heating system and/or the decentralized heating surfaces corresponding to a heating demand of at least one vehicle occupant. For controlling the temperature of the vehicle interior corresponding to a heating demand, a power distribution takes place between the central heating system and the decentralized heating surfaces as a function of specified distribution demands.

Abstract: A vehicle has an electric heating device which in operation reaches a temperature of more than 50° C., and includes a flat perforated decorative layer which is disposed on a front face of the heating device. Because of the perforation of the decorative layer, the heating device can radiate infrared radiation through holes provided in the decorative layer directly into a passenger compartment of the vehicle. The vehicle also has a reflector layer which is disposed on a rear face of the heating device facing away from the front face and is provided in order to reflect infrared radiation emitted by the heating device in the direction of the passenger compartment.

Abstract: A vehicle is provided with a heating device. The heating device includes an electrically driven heat source and a reflector configured to reflect heat radiation emitted by the heat source in the direction of a passenger compartment of the vehicle. The vehicle further includes a contact protection device which is permeable to radiation so that heat radiation reflected by the reflector or emitted by the heat source radiates into the passenger compartment. The heat source and the reflector are arranged on one side of the contact protection device, and the side is averted from the passenger compartment.

Abstract: A method and a correspondingly designed device are provided for controlling or regulating a coolant circuit of an air conditioning system, which includes at least one compressor, at least one condenser or gas cooler, and at least one evaporator. A controllable coolant expansion device is connected to the coolant inlet of the evaporator. It is detected when the coolant circuit is under filled with a coolant and, when an under filling of the coolant is detected, the control strategy of the expansion device is changed.

Abstract: A heat pump system for climate control of an electric or hybrid vehicle includes an air conditioning unit having a heating heat exchanger, and an air conditioning unit evaporator having a refrigeration circuit, in which the air conditioning unit evaporator and a condenser are arranged. The refrigeration circuit includes a low temperature (LT) circuit in which at least one electrical power component is arranged. The heat pump system is configured to switch over between a cooling mode and a heating mode. The condenser, which is configured to transfer heat into the LT circuit, and an LT cooler are incorporated into the LT circuit. In the heating mode, the condenser outputs heat into the LT circuit and from there into a heating circuit, in which the heating heat exchanger is arranged, and in the cooling mode, the condenser outputs heat via the LT circuit to the LT cooler.

Abstract: A method of operating a refrigerant circuit as a heat pump is provided. By way of a compressor, refrigerant is compressed and is pumped through a refrigerant/heating heat exchanger. The refrigerant coming from the refrigerant/heating heat exchanger is expanded in at least a first expansion element. The refrigerant expanded by way of the first expansion element flows to a suction input of the compressor through at least one evaporator. At a branch-off point of the refrigerant/heating heat exchanger situated between a refrigerant input and a refrigerant output of the refrigerant/heating heat exchanger, refrigerant is branched off and is guided by way of a second expansion element in the direction of the suction input of the refrigerant compressor.