Abstract: A vehicle air conditioner includes: a condenser that internally circulates a high-temperature and high-pressure refrigerant which is discharged from a compressor and that heats air passing around the condenser; an evaporator that internally circulates a low-temperature and low-pressure refrigerant and that absorbs heat from the air passing around the evaporator; and a switching portion that switches flows of air in response to a heating time, a cooling time, and a dehumidifying-heating time of a vehicle. Also, the switching portion causes the air passing around the condenser to flow into a vehicle compartment during the heating time of the vehicle, causes the air passing around the evaporator to flow into the vehicle compartment during the cooling time of the vehicle and causes the air sequentially passing through the evaporator and the condenser to flow into the vehicle compartment during the dehumidifying-heating time of the vehicle.

Abstract: A vehicle air conditioner includes: a condenser that internally circulates a high-temperature and high-pressure refrigerant which is discharged from a compressor and that heats air passing around the condenser; an evaporator that internally circulates a low-temperature and low-pressure refrigerant and that absorbs heat from the air passing around the evaporator; and a switching portion that switches flows of air in response to a heating time, a cooling time, and a dehumidifying-heating time of a vehicle. Also, the switching portion causes the air passing around the condenser to flow into a vehicle compartment during the heating time of the vehicle, causes the air passing around the evaporator to flow into the vehicle compartment during the cooling time of the vehicle and causes the air sequentially passing through the evaporator and the condenser to flow into the vehicle compartment during the dehumidifying-heating time of the vehicle.

Abstract: A vehicular cold-air shielding structure that is provided on a floor of a vehicle includes a front seat that is slidable in the front-rear direction of the vehicle and a shielding member that is disposed under the front seat and that is provided so as to extend in the width direction of the vehicle. The shielding member has a flexibility that allows the shielding member to follow the sliding movement of the front seat.

Abstract: A radiator is provided within an engine room and in front of an engine for cooling engine cooling water. A shutter is provided in front of the radiator and covers a portion of a core surface of the radiator for adjusting an amount of cooling air to be directed toward the radiator. A baffle plate is provided behind a remaining portion of the core surface, which is not covered with the shutter, for directing the air, having passed through the remaining portion, to outside the engine room.

Abstract: A vehicle air conditioning device having first and second fans for forcing air through a heat exchanger, and a fan controller for controlling an operation of the first and second fans. On receiving a signal indicating that the shutter is closed, the fan controller controls the first and second fans such that the first fan is turned into an operating state and the second fan is turned into a stopped state.

Abstract: A vehicular air conditioner includes cabin-exterior fans that blow air with respect to a cabin-exterior heat exchanger in which a coolant is vaporized, and a plurality of openable/closable shutters disposed in a duct that communicates between the cabin-exterior heat exchanger and the exterior of the vehicle. On an upper portion of the duct, a cover is formed that covers the cabin-exterior heat exchanger, which is disposed rearwardly of the shutters, and an upper region of the radiator. Additionally, air that is raised in temperature by heat from the engine passes between the cover and both the cabin-exterior heat exchanger and the radiator, and is guided toward a forward side of the vehicle.

Abstract: A radiator is provided within an engine room and in front of an engine for cooling engine cooling water. A shutter is provided in front of the radiator and covers a portion of a core surface of the radiator for adjusting an amount of cooling air to be directed toward the radiator. A baffle plate is provided behind a remaining portion of the core surface, which is not covered with the shutter, for directing the air, having passed through the remaining portion, to outside the engine room.

Abstract: A vehicle air conditioning device having first and second fans for forcing air through a heat exchanger, and a fan controller for controlling an operation of the first and second fans. On receiving a signal indicating that the shutter is closed, the fan controller controls the first and second fans such that the first fan is turned into an operating state and the second fan is turned into a stopped state.

Abstract: A heat pump air conditioning system having an outside heat exchanger which is disposed in an engine compartment of a vehicle is provided. The outside heat exchanger consists of a first outside heat exchanger disposed forward of an engine and a second outside heat exchanger disposed near the engine except the front, especially rearward of the engine. When heating the passenger compartment, the second outside heat exchanger acts as a heat absorber, utilizing the heat of the engine, and effectively heating the interior.

Abstract: A heat pump air conditioning system having an outside heat exchanger which is disposed in an engine compartment of a vehicle is provided. The outside heat exchanger consists of a first outside heat exchanger disposed forward of an engine and a second outside heat exchanger disposed near the engine except the front, especially rearward of the engine. When heating the passenger compartment, the second outside heat exchanger acts as a heat absorber, utilizing the heat of the engine, and effectively heating the interior.

Abstract: In a waterdrop removing apparatus for a vehicle, a blower is attached to a part of high rigidity within a door body to reduce vibration and noise. Air discharged from the blower is guided to a door mirror by a nozzle to blow away waterdrops wetting a surface of the door mirror. The blower is attached to an attachment bracket which is fixed to a door hinge together with a front end wall of the door body interposed between the door hinge and the attachment bracket.

Abstract: A water droplet removing system for a vehicle provided with door mirror assemblies each having a door mirror base attached to a door body, and a mirror unit guides air discharged by a blower installed in a door body of the automobile to at least either the surface of a mirror included in the mirror unit or the outer surface of a side window to blow off water droplets wetting the surface of the mirror or the outer surface of the side window. The blower is installed in a dead space defined in front of a guide rail placed in the door body to guide the front edge of the side window for vertical movement in the door body so that the interference between the blower and parts arranged within the door body including the side window can be avoided.

Abstract: An air conditioner for a vehicle has a heat pump type refrigerant circuit capable of operating at least in a heating mode. The air conditioner comprises a motor fan for supplying air heated by a heat exchanger to the interior of the vehicle during operation of the heating mode, a sensor for detecting the temperature of the air at a position downstream of the heat exchanger and a control unit for controlling the volume of the air supplied by the motor fan to a predetermined minimum volume by controlling the drive of the motor fan when the detected air temperature is lower than a predetermined temperature. Even in a condition where a sufficiently large heat radiation from the heat exchanger cannot be expected, a large volume of cold air that has been insufficiently heated can be prevented from being discharged into the interior of the vehicle.

Abstract: An air conditioner for vehicles includes a refrigerant circuit having a compressor capable of varying its output, a heat sink and a radiator disposed in an air duct for cooling operation, heating operation and dehumidifying operation modes; sensors for detecting air temperatures at the output-side positions of the heat sink and the radiator, respectively; and a control unit for controlling the output of the compressor in response to at least one of the detected air temperatures. The heat absorbing action due to the heat sink and the heat radiating action due to the radiator are appropriately controlled in the refrigerant circuit side in the respective operation modes without unnecessary heat absorbing and heat radiating actions. Further, the temperature of the air discharged from the air duct into the interior of the vehicle can be properly controlled by adjustment of the heat absorbing ability of the heat sink and the heat radiating ability of the radiator by the control of the compressor output.

Abstract: An air conditioner for vehicles that prevents icing and lack of visibility from developing on window glass of a vehicle during heating, and which permits a dehumidifying operation to be made without lowering of the air blowing temperature. The air conditioner is of a heat pump type comprising a compressor, an exterior heat exchanger, and a first interior heat exchanger, which are provided together with a second interior heat exchanger used as a heat radiator at least during heating. Further, piping lines are provided for introducing a refrigerant gas for passage through the second interior heat exchanger to the exterior heat exchanger through an expansion means, and for introducing the refrigerant gas for passage through the second interior heat exchanger to the first interior heat exchanger through a first expansion means.

Abstract: When an air-conditioner operation mode signal AM representative of a confirmation to permit the starting of a motor-driven compressor is supplied from an air-conditioner control unit to a battery management unit, the battery management unit detects power supply conditions including a voltage, a ground fault, a wire disconnection, etc. of a high-voltage battery, and supplies a start permission signal AUX2 indicative of a permission to start the motor-driven compressor to the air-conditioner control unit depending on the detected power supply conditions. After having received the start permission signal AUX2, the air-conditioner control unit turns on an air-conditioner inverter drive signal DAI to operate the motor-driven compressor.

Abstract: An air conditioner for vehicles includes a damper for switching among an outside-air inlet mode, an inside-air inlet mode and an outside/inside-air inlet mode, a manual switch for selecting any one of the respective inlet modes, an automatic switch for automatically selecting one of the respective inlet modes, a heating and cooling operation unit, an inside-air temperature sensor, an outside-air temperature sensor and a control unit for selectively controlling the respective inlet modes based on the condition of the heating and cooling operation unit, the condition of the respective switches and the difference between the temperatures detected by the respective temperature sensors. In the air conditioner, an optimum air conditioning in correspondence to the load required for air conditioning can be realized from the viewpoint of saving of energy and efficient operation.

Abstract: An external heat exchanger of a heat pump air-conditioner on an electric vehicle is determined as being frosted based on signals from temperature sensors. If the external heat exchanger is frosted, then a frosting flag is set and the air-conditioner is operated in a cooling mode to radiate heat from the external heat exchanger for thereby defrosting the external heat exchanger while the air-conditioner is in a pre-air-conditioning mode before the driver enters the electric vehicle or while the battery on the electric vehicle is being charged. While the battery is being charged, the external heat exchanger is defrosted by the electric energy supplied from an external power supply to charge the battery.

Abstract: An air conditioner for vehicles can operate at a dehumidifying-operation mode including at least a dry-cooling or a dry-heating mode. The air conditioner comprises a plurality of discharge ports including a defroster discharge port and discharge port switching dampers, a control system for opening at least the defroster discharge port for a predetermined time when the dehumidifying-operation mode is selected, and a control system for opening another discharge port determined in accordance with an operation mode and the like after the predetermined time has elapsed. When the dehumidifying operation is selected, at least the defroster discharge port is opened only for the predetermined time and temperature-conditioned air is discharged to the windshield from the defroster discharge port. After the predetermined time has elapsed, a discharge port in accordance with an operation mode is opened.

Abstract: A battery temperature control system in an electric automobile which is equipped with an air conditioner for supplying a cool or warm air into a passenger compartment and which travels by using batteries as a power source accommodated in a battery chamber. The system includes a battery temperature sensor for detecting a temperature of the battery, a control unit adapted to drive the air conditioner in an air-cooling mode when the battery temperature detected by the temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by the temperature sensor is lower than a predetermined lower limit. An air intake port is provided in the battery chamber for introducing an air supplied from the air conditioner into the battery chamber. Further, in order to obtain a sufficiently warm air even when the atmospheric temperature is low, an auxiliary heat exchanger 28 which is heated by the combustion heater 29 also is provided.