A system according to the present disclosure includes a start-stop module, a bypass valve control module, and a flapper valve control module. The start-stop module is configured to stop an engine of a vehicle independent of an ignition system of the vehicle. The bypass valve control module is configured to adjust a bypass valve to a bypass position to prevent engine coolant from flowing from the engine to a heater core of the vehicle when the engine is stopped independent of the ignition system. The flapper valve control module is configured to control a flapper valve to adjust an amount of airflow from an evaporator of the vehicle to a cabin of the vehicle through the heater core.

An air conditioning system for motor vehicles includes a temperature door configured to adjust an opening degree of a hot air path, a PTC heater configured to heat an air introduced into the hot air path, and a control unit configured to control an opening position of the temperature door with respect to the hot air path and to secure a minimum opening degree of the hot air path, so that a minimum amount of air is blown toward the PTC heater regardless of the opening position of the temperature door. The control unit is configured to actively adjust the minimum opening degree of the hot air path depending on an on/off condition of the PTC heater.

A reheating method for operating a refrigeration system for a motor vehicle is described, the refrigeration system includes a refrigerant compressor, which is connectable or connected to a primary line and a secondary line; an outer heat exchanger, which is arranged in the primary line; an evaporator, which is arranged in the primary line; a heating register, which is arranged in the secondary line; at least one movable temperature flap which is arranged upstream or downstream of the heating register in relation to a supply air flow direction; and at least one shut-off element, which is arranged downstream of the heating register in the secondary line. The reheating method includes adjusting the at least one shut-off element into a position in which refrigerant flows downstream of the heating register into the evaporator, while bypassing the external heat exchanger.

A vehicular air conditioning system includes: an intake part including an intake door configured to open an outdoor air inlet to introduce an outdoor air in an outdoor air mode, open an indoor air inlet to introduce an indoor air in an indoor air mode, and control an opening degree of the outdoor air inlet or the indoor air inlet, and a blower configured to suck the indoor air or the outdoor air through the indoor air inlet or the outdoor air inlet and blow the indoor air or the outdoor air into a vehicle interior; and a control part configured to control a rotational speed of the blower according to an air flow rate level of the air conditioning system.

A thermal system with high aspect ratio vents for a vehicle. The thermal system comprises: at least one HVAC unit; a first vent with a first high aspect ratio, the first vent coupled to the HVAC unit and configured to generate a first plane of air in a passenger compartment of the vehicle; and a second vent coupled to the HVAC unit and configured to generate a second plane of air in the passenger compartment, the second vent positioned so that the second plane of air intersects the first plane of air.

An HVAC air inlet housing for a vehicle includes an air inlet housing having a top portion and a bottom portion. A fresh air duct, to convey fresh air from an air inlet to a blower, is defined by the air inlet housing. A water inlet port, to connect to an evaporator drain port via a hose, is defined in the bottom portion. The hose is to convey water from the evaporator drain port to the water inlet port. A water tunnel is defined by the air inlet housing to convey water from the water inlet port to a sluice defined in the bottom portion. The sluice is to convey water from the water tunnel to a sump defined in the bottom portion. A sump drain port is defined in the air inlet housing bottom portion in fluid communication with the sump to drain water from the sump.

A vehicle includes a passenger cabin, an inverter, and a coolant system having conduit arranged to circulate coolant through the inverter and an evaporator. A refrigerant system includes a condenser and conduit arranged to circulate refrigerant through the condenser and through the evaporator to absorb heat generated by the inverter. A climate control system is arranged to circulate an airstream through the condenser and into the cabin to heat the cabin.

A vehicle includes an inverter, a climate control system, and a coolant system. The climate control system includes a housing, and a heater core and an electric heater disposed within the housing. The coolant system includes conduit arranged to circulate coolant through the inverter and the heater core. The inverter is disposed upstream of the heater core.

A vehicle includes an exterior surface, a sensor disposed on the exterior surface, a passenger cabin fixed relative to the exterior surface, a duct receiving airflow from the passenger cabin, and a valve disposed in the duct and movable between a first position directing the airflow to the sensor and a second position directing the airflow outside the vehicle.

Disclosed herein are air-conditioning systems for a vehicle for a battery, which can control temperature of the vehicle or the battery by delivering air cooled through a first evaporator of a cooling and heating module or air heated through a condenser to a supply side (toward a passenger or a battery). The cooling and heating module includes: a compressor; the condenser; an expansion valve for controlling a flow of the refrigerant condensed in the condenser; the first evaporator for evaporating the refrigerant supplied through the expansion valve; a first-first blowing unit for blowing air through the first evaporator; a first-second blowing unit for blowing air through the condenser; and a discharge duct for selectively delivering the air supplied through the first-first blowing unit and the first-second blowing unit toward the passenger by opening and closing means.