A thermal management system includes: an antifreeze circuit; a battery; a chiller; and a controller. The antifreeze circuit includes: a heat exchanger; a cooling core; a first flow passage connected to the chiller and the heat exchanger; a second flow passage connected to the heat exchanger and the cooling core; and a bypass passage through which an antifreeze flows toward the cooling core while bypassing the heat exchanger. The heat exchanger cools the battery. The cooling core cools air supplied to a passenger compartment. An upstream end and a downstream end of the bypass passage are respectively connected to the first flow passage and the second flow passage. The controller controls so that a temperature of the antifreeze flowing through the cooling core does not decrease to a temperature equal to or lower than 0 C. when the cooling core cools the air.

A cooling module for an electric or hybrid motor vehicle, through which an air flow is intended to pass, having a set of heat exchangers including a first heat exchanger and a second heat exchanger; a fan casing disposed downstream, the fan casing having an outlet for the air flow; a tangential turbomachine configured so as to generate the air flow; the cooling module further including: an air discharge vent disposed downstream of the outlet for the air flow of the fan casing; and a bypass connecting the outlet for the air flow to an opening upstream of the set of heat exchangers; the air discharge vent having a closure device configured so as to redirect the air flow from the outlet towards the outside of the vehicle when in the discharge position and to redirect the air flow towards the bypass when in the recirculation position.

A method for reducing ice and/or frost buildup in an evaporator blower space of a transport climate control system is provided. The evaporator blower space houses an evaporator blower of the transport climate control system. The method includes a controller instructing the transport climate control system to operate in a defrost mode. The method also includes the controller monitoring an evaporator blower space parameter indicative of ice and/or frost buildup in the evaporator blower space. Also, the method includes the controller determining ice and/or frost buildup in the evaporator blower space based on the evaporator blower space parameter. Further, the method includes the controller adjusting operation of the transport climate control system to reduce ice and/or frost buildup in the evaporator blower space.

A vehicle air conditioning apparatus includes: a refrigerant circuit including a compressor configured to compress refrigerant, an outdoor heat exchanger configured to perform a heat exchange between the refrigerant and outdoor air, and a heat absorption heat exchanger configured to absorb heat from a heat-absorbed subject into the refrigerant; and a controller configured to control the refrigerant circuit. The controller can selectively perform defrosting modes including: a hot gas defrosting mode to defrost the outdoor heat exchanger by the refrigerant compressed by the compressor; and a heat absorption defrosting mode to defrost the outdoor heat exchanger by the refrigerant absorbing the heat from the heat-absorbed subject and compressed by the compressor. The controller sets a selecting condition to preferentially select the heat absorption defrosting mode, and a switching condition to switch the heat absorption defrosting mode to the hot gas defrosting mode and performs the hot gas defrosting mode.

In a vehicle air conditioner with a refrigeration cycle, a controller includes a compression control unit and a decompression control unit, which perform control when a condensation heat defrosting operation and a heating operation of the space to be air conditioned are performed in parallel. The compression control unit achieves any one of a temperature or a pressure of a refrigerant required in a heating heat exchanger, or a temperature or a pressure of the refrigerant required in an outside air heat exchanger by operation control of a compressor. The decompression control unit achieves the other one of the temperature or the pressure of the refrigerant required in the heating heat exchanger, or the temperature or the pressure of the refrigerant required in the outside air heat exchanger by operation control of the first expansion valve.