VEHICLE AIR-CONDITIONING SYSTEM AND OPERATING METHOD

• Main Authors: Wiebelt, Achim, Neumeister, Dirk
• Format: Patent
• Language: English
• Published: 24.05.2018
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A vehicle may include an electric drive having at least one electric motor, at least one battery and at least one power electronic and may be cooled via a cooling circuit. The vehicle may include an air-conditioning system including at least one duct. A refrigeration circuit and a thermoelectric heating device may be arranged in the at least one duct. A control device may be configured/programmed to actuate the air-conditioning system, and may be operable to: activate the refrigeration circuit to cool the interior; operate the thermoelectric heating device as a cooler during a start-up phase of the refrigeration circuit; operate the thermoelectric heating device only as the cooler during the start-up phase of the refrigeration circuit when a cool-down function is activated; and automatically activate the cool-down function when a temperature difference between an actual temperature of the interior and a target temperature of the interior exceeds a predetermined temperature difference threshold value.