VEHICULAR AIR-CONDITIONING DEVICE
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United States of America
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May 26, 2020
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May 26, 2020
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Abstract
There is provided a vehicular air-conditioning device capable of reducing frost formation on an outdoor heat exchanger during vehicle running after disconnection from an external power source and extending a period during which a heating operation can be performed with high efficiency. A battery 55 is capable of being charged from an external power source. A controller 32 causes an outdoor heat exchanger 7 to absorb heat to thereby execute a heating operation to heat a vehicle interior. The controller 32 is capable of executing air preconditioning to preliminarily heat the vehicle interior before boarding. When the air preconditioning is executed in a state in which the battery 55 is connected to the external power source, the controller 32 heats the vehicle interior without using the outdoor heat exchanger 7, and changes a target temperature for heating control in the air preconditioning in the direction of increasing from a reference value of the target temperature.
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