Abstract: The invention relates to a method for operating a climate-control system (12) for a vehicle (10). According to the invention, total energy efficiencies are determined for a group of operating strategies for the air-conditioning system (12) and an operating strategy with the greatest total efficiency that fulfills the heating output requirement (44) that has been determined, is selected.

Abstract: A fuel cell system includes a combined cooling circuit for a motor vehicle that provides a method of cooling a fuel cell of a fuel cell system.

Abstract: The invention relates to a method for defrosting an external-air heat exchanger of an electric vehicle. Contrary to the conventional principle of operating systems in an electric vehicle at the lowest possible output power, according to the invention, high output power is used for the defrosting process, to reduce the defrosting time and thus reduce heat loss.

Abstract: The invention relates to a method for operating a climate-control system (12) for a vehicle (10). According to the invention, total energy efficiencies are determined for a group of operating strategies for the air-conditioning system (12) and an operating strategy with the greatest total efficiency that fulfills the heating output requirement (44) that has been determined, is selected.

Abstract: A method for controlling the charging process of an electrical energy storage device, at an electric charging device, wherein the charging device has a temperature control system and the energy storage device has a temperature control system, including at least the following steps: transfer of electrical energy between the charging device and the energy storage device, transfer of thermal energy between a temperature control system of the charging device and the temperature control system of the energy storage device, and transmission of at least one first item of information from a computing unit associated with the charging device to a computing unit associated with the energy storage device, and/or transmission of at least one second item of information from a computing unit associated with the energy storage device to a computing unit associated with the charging device.

Abstract: A fuel cell system includes a combined cooling circuit for a motor vehicle that provides a method of cooling a fuel cell of a fuel cell system.

Abstract: A method for controlling the charging process of an electrical energy storage device, at an electric charging device, wherein the charging device has a temperature control system and the energy storage device has a temperature control system, including at least the following steps: transfer of electrical energy between the charging device and the energy storage device, transfer of thermal energy between a temperature control system of the charging device and the temperature control system of the energy storage device, obtaining charging progress information, and closed-loop or open-loop control of at least a first temperature of a cooling medium in the temperature control system of the charging device and/or of the energy storage device as a function of the charging progress information.

Abstract: In a method for cooling a traction battery of an electrically drivable vehicle, a refrigerant is used as cooling medium, and in a mass flow of specified magnitude is led along the traction battery through at least one channel. The at least one channel is in heat-conducting connection with the traction battery. It is proposed that an available cooling power (PV) for cooling the traction battery is determined, wherein as a function of the available cooling power (PV), the magnitude of the mass flow of the refrigerant is regulated in such a way that either no cooling power (Pactual) is delivered to the traction battery, or the delivered cooling power (Pactual) in each case assumes one of multiple cooling power stages (I, II) as a function of the available cooling power (PV).

Abstract: In a method for cooling a traction battery of an electrically drivable vehicle, a refrigerant is used as cooling medium, and in a mass flow of specified magnitude is led along the traction battery through at least one channel. The at least one channel is in heat-conducting connection with the traction battery. It is proposed that an available cooling power (PV) for cooling the traction battery is determined, wherein as a function of the available cooling power (PV), the magnitude of the mass flow of the refrigerant is regulated in such a way that either no cooling power (Pactual) is delivered to the traction battery, or the delivered cooling power (Pactual) in each case assumes one of multiple cooling power stages (I, II) as a function of the available cooling power (PV).