| 摘要 |
[Problem] To ensure comfortable cabin heating by preventing or suppressing frost formation on an outdoor heat exchanger of an air-conditioning device of so-called heat pump type. [Solution] A controller calculates a no-frost forming maximum heating capacity prediction value (QmaxNfst), which is a target value for a maximum heating capacity that can be generated by a radiator (4) without frost formation on an outdoor heat exchanger (7), and controls heating by the radiator (4) and heating by a heat medium-air heat exchanger (40) of a heat medium circulation circuit (23) on the basis of the no-frost forming maximum heating capacity prediction value (QmaxNfst) and a requested heating capacity (Qtgt) which is a requested heating capacity from the radiator (4), so that the requested heating capacity (Qtgt) can be achieved without causing frost formation on the outdoor heat exchanger (7). |
