Patent ID: 10787057

Abstract:
A vehicle air conditioner includes a bypass passage configured to cause a coolant to circulate while bypassing a heater core, a switching device set to switch between a first mode in which the coolant flows through the bypass passage and returns to an internal combustion engine while bypassing the heater core and a second mode in which the coolant flows to the heater core, a coolant-temperature sensor that detects a temperature of the coolant at a part through which the coolant flows in both the first mode and the second mode, and a control unit that controls an operation of a blower based on the coolant-temperature control data. Furthermore, first and second calculating portions are configured to calculate the coolant-temperature control data in the first and second modes, respectively. The first calculating portion calculates the coolant-temperature control data based on the temperature of the coolant detected at start-up of the internal combustion engine, and the second calculating portion sets, as the coolant-temperature control data, a temperature lower than the detected temperature of the coolant.