Vehicle air conditioning control system

Abstract

To provide an air-conditioning control device of a vehicle which can suppress coolant passing noise in a coolant circulation circuit.SOLUTION: An air-conditioning control device of a vehicle is given in which: when an outside air introduction mode is taken (YES at ST1), when an estimated air conditioning load is a prescribed value or less (YES at ST4), and when outside air temperature is lower than in-cabin temperature (YES at ST6), a suction port mode is switched from the outside air introduction mode to an inside air circulation mode (ST7). Thereby, a situation where the air conditioning load is low is resolved to be capable of suppressing occurrence of coolant passing noise so as to suppress a crewman from feeling discomfort due to the coolant passing noise.SELECTED DRAWING: Figure 3

Claims

[Claim 1] In an air conditioning control device installed in a vehicle that controls an air conditioning system capable of switching between internal air circulation mode and external air intake mode, A vehicle air conditioning control device characterized by comprising an intake port mode switching unit that switches the intake port mode from the outside air intake mode to the recirculation mode, provided that the estimated air conditioning load is below a predetermined value when the intake port mode is the outside air intake mode and the outside air temperature is lower than the vehicle interior temperature.

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