Abstract: A radiant heating device for producing radiant heat in a passenger compartment of a motor vehicle includes a heating surface for emitting heat radiation, a heating element for providing heating power, a first temperature sensor for detecting a first temperature in a specific spot and for providing a corresponding first temperature indication, and a second temperature sensor for detecting a second temperature on the surface and for providing a corresponding second temperature indication. In order to detect a local over-heating of the heating surface, a difference between the two temperature indications is determined. In the event of a defect, a protective operating mode is then selected.

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 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 high-voltage accumulator, an HVA heating mode is activated in which the high-voltage accumulator which is connected to an HVA circuit of the heating system is heated by an HVA heating source which is activated for this purpose so that heat is generated in the HVA circuit or transferred into the circuit. When there is a heating request for a passenger compartment of the vehicle, an air-conditioning heating mode is activated in which the passenger compartment is heated by a heating circuit, with heat which is generated in the heating circuit with an auxiliary heater or is transferred into the heating circuit with a heat pump, or both.

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 high-voltage accumulator, an HVAA heating mode is activated in which the high-voltage accumulator which is connected to an HVA circuit of the heating system is heated by an HVA heating source which is activated for this purpose so that heat is generated in the HVA circuit or transferred into the circuit. When there is a heating request for a passenger compartment of the vehicle, an air-conditioning heating mode is activated in which the passenger compartment is heated by a heating circuit, with heat which is generated in the heating circuit with an auxiliary heater or is transferred into the heating circuit with a heat pump, or both.

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 method is provided for operating a radiation heating device for a heating system of a motor vehicle. The radiation heating device has an electrically operable heating element for providing a heating temperature at a heating surface. The method operates the heating element for the purposes of providing heating power in normal operation, checks whether there is contact between the heating surface and a body part, and reduces the heating power of the heating element if contact with the body part is identified.

Abstract: A radiant heating device for producing radiant heat in a passenger compartment of a motor vehicle includes a heating surface for emitting heat radiation, a heating element for providing heating power, a first temperature sensor for detecting a first temperature in a specific spot and for providing a corresponding first temperature indication, and a second temperature sensor for detecting a second temperature on the surface and for providing a corresponding second temperature indication. In order to detect a local over-heating of the heating surface, a difference between the two temperature indications is determined. In the event of a defect, a protective operating mode is then selected.

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.