Nissan Motor Company Limited

Masashi Arai

Makoto Fukubayashi

Ikutaro Noji

Keno Kato

Nobuyuki Kawai

A vehicular air conditioner comprises a controller, a solar sensor and a room temperature sensor. The controller includes a correcting section where a detected solar intensity and/or a detected room temperature is corrected by a first-order lag filtering process. The controller executes an air conditioning control on the basis of the corrected solar intensity and/or room temperature so that the change of the air-conditioning state is fitted in accordance with feeling of vehicle occupants.

Air conditioner for vehicle

A control system for an automotive air conditioner has an ambient air temperature sensor; a solar radiation quantity sensor; a passenger room temperature sensor; a cooled air temperature sensor; an air-mix door open degree sensor; and a bypass door open degree sensor. The control system further has a first device which, based on information from the ambient air temperature sensor and the solar radiation quantity sensor, derives a first target temperature of air drawn out from an air outlet structure; a second device which, based on the information from the cooled air temperature sensor and the air-mix door open degree sensor, derives a second target temperature of air drawn out from a foot area air duct; and a third device which, based on the information from the cooled air temperature sensor, the first target temperature and the second target temperature, derives a ratio between the amount of air flowing in a bypass passage and that of air blown out from the air outlet structure; and a fourth device which controls the open degree of the bypass door in accordance with the derived ratio.

Automotive air conditioning device

An air conditioner system for a vehicle having an occupant compartment which includes a driver's occupying area and a front passenger's occupying area. The system includes a vent duct adapted to conduct a conditioned air. The vent duct defines a first passages opening to the driver's occupying area and a second passage opening to the front passenger's occupying area. First and second vent valves are disposed within the first and second passages, respectively. First and second actuators are drivingly connected to the first and second vent valves. A first sensor is so constructed and arranged as to detect insolation magnitude within the driver's occupying area and generate a first sensor signal indicative of the detected insolation magnitude within the driver's occupying area. A second sensor is so constructed and arranged as to detect insolation magnitude within the front passenger's occupying area and generate a second sensor signal indicative of said detected insolation magnitude within the front passenger's occupying area. A control unit is provided to determine target degrees of opening which the first and second vent valves are to take in response to the first and second sensor signals and providing first and second outputs to the first and second actuators, respectively, to set the first and second vent valves at the determined target degrees of opening.

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Isehara, Japan

Masashi Arai