Abstract: A heat pump system is configured to be able to switch between a plurality of modes including a first heating mode that heats a passenger compartment without using waste heat of a predetermined cooling target, and a second heating mode of heating the passenger compartment using the waste heat. The controller of the heat pump system controls so that a heat transfer medium circulates by passing through a chiller, by controlling the aperture of a second throttle valve to an aperture larger than zero, during the second heating mode. On the other hand, it switches so that the heat transfer medium circulates without passing through the chiller, by decreasing the aperture of the second throttle valve until becoming zero in a state fully opening a predetermined shutoff valve, at a first switching time at which to switch from the second heating mode to the first heating mode.

Abstract: In a vehicle air conditioning apparatus including a first air conditioning system capable of performing heating operation using a heat pump, a second air conditioning system capable of performing heating operation using a heater, and a controller configured to control at least the first air conditioning system and the second air conditioning system, when a remaining capacity of a battery that supplies power to a motor of a vehicle exceeds a predetermined threshold, the controller performs the heating operation by the second air conditioning system and operates the first air conditioning system in a defrosting mode. When the remaining capacity of the battery exceeds the predetermined threshold during the heating operation by the first air conditioning system, the controller switches from the heating operation by the first air conditioning system to the heating operation by the second air conditioning system.

Abstract: A supporting structure that may reduce the vibration of the compressor input to the vehicle body is provided in the disclosure. The supporting structure is used to support a compressor that compresses gas, and includes elastic members. The elastic members include a first elastic member and a second elastic member. A center of gravity of the compressor is set between the first elastic member and the second elastic member, and the first elastic member is disposed below the center of gravity in an up-and-down direction. The second elastic member is farther away from a compression mechanism side of the compressor than the first elastic member.

Abstract: An opening/closing control device for a grille shutter is capable of appropriately opening and closing the grille shutter according to a vehicle outside environment and an operating state of an aircon while ensuring the operation of the aircon, and is capable of sufficiently improving vehicle operating efficiency. An aircon operating time ratio as a ratio of operation time of an aircon to overall time is calculated. When the calculated aircon operating time ratio is larger than the sum of a threshold value calculated according to an ambient air temperature and a hysteresis constant, the grille shutter is opened to promote cooling of refrigerant in the aircon and reduce motive power consumed by the aircon. Therefore, it is possible to appropriately open and close the grille shutter depending on the ambient air temperature and the operating ration of the aircon.

Abstract: An opening/closing control device for a grille shutter is capable of appropriately opening and closing the grille shutter according to a vehicle outside environment and an operating state of an aircon while ensuring the operation of the aircon, and is capable of sufficiently improving vehicle operating efficiency. An aircon operating time ratio as a ratio of operation time of an aircon to overall time is calculated. When the calculated aircon operating time ratio is larger than the sum of a threshold value calculated according to an ambient air temperature and a hysteresis constant, the grille shutter is opened to promote cooling of refrigerant in the aircon and reduce motive power consumed by the aircon. Therefore, it is possible to appropriately open and close the grille shutter depending on the ambient air temperature and the operating ration of the aircon.