Vehicular air conditioner control device

Abstract

The present invention provides an air-conditioning control device for a vehicle ensuring required cooling ability by discriminating switching to the internal air introduction state by thermal load determination and switching to the internal air introduction state by odor detection and capable of reducing variation of an air amount and noise by switching to the internal air introduction state by the odor detection. The air-conditioning control device for the vehicle is provided with a first air introduction state variable means for varying the air introduction state based on the thermal load in a cabin; and a second air introduction state variable means for varying the air introduction state based on the contamination degree of air detected by an air contamination degree detection sensor. Air feeding ability is made non-variable before and after switching at switching to the internal air introduction state by the first air introduction state variable means and air feeding ability is relatively reduced more than the air feeding ability before switching at switching to the internal air introduction state by the second air introduction state variable means.

Description

technical field [0001] The present invention relates to a control device for an air conditioner for a vehicle, and more particularly to a control device for an air conditioner for a vehicle including a mechanism for controlling the blowing volume (blowing capacity) of a blower according to changes in the air intake state. Background technique [0002] Conventionally, as such a device, the following configuration has been considered: a switching mechanism for switching the air introduction state from the inside air suction port and the outside air suction port to the air conditioning duct, a blower arranged in the air conditioning duct, and a basic blowing volume of the blower determined. The basic air volume determination mechanism and the detection mechanism that detects the air introduction state switched by the switching mechanism, based on the air introduction state detected by the detection mechanism, compared with the external air intake state of sucking air from the ex...

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Problems solved by technology

[0004] However, in the above-mentioned structure, since the control to reduce the air blowing volume (air blowing capacity) of the blower is performed under all conditions as the internal air introduction state, the heat load outside the vehicle becomes large, even if the air introduction state is switched to In the case of the internal air introduction state, the air supply capacity will also decrease, and due to the decrease in the air supply capacity, sufficient cooling capacity cannot be ensured, and there is a problem that the vehicle interior cannot be maintained at the target temperature.

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