Disclosed are a method for controlling heating of an HVAC system for an electric vehicle and an HVAC system thereof. According to various embodiments, in an operation of the HVAC system including a main heating unit in which a first refrigerant circulates ...

A motor vehicle includes a heat pump with an expansion valve and a controller that is configured to control a position of the expansion valve based, at least in part, on a superheat target, and utilize differences between an expected position of the expans...

An vehicular air-conditioner includes a refrigeration cycle including a compressor, an outside condenser, an interior condenser, an evaporator, an expansion valve 7, a bypass-path bypassing the outside condenser, a cooling circulation path that circulates ...