A secondary loop HVAC system including an evaporator, a condenser, an expansion valve, and a compressor. A refrigerant loop is in fluid communication with each of the evaporator, the condenser, and the expansion valve. An HVAC case includes a first heat exchanger and a second heat exchanger. A first coolant loop is in fluid communication with the first heat exchanger, the second heat exchanger, and either the evaporator or the condenser. A valve system is configured to control flow of the coolant through the first coolant loop. In a maximum hot heating mode, the valve system is configured to direct the coolant through the condenser, the first heat exchanger, and the second heat exchanger. In a maximum cold cooling mode, the valve system is configured to direct the coolant through the evaporator, the first heat exchanger, and the second heat exchanger.

Disclosed is an air conditioner for a vehicle. The air conditioner for a vehicle includes: an air conditioning case including an air inflow port for introducing air, air discharge ports for discharging air into the interior, and an internal air passage formed therein; a cooling heat exchanger and a heating heat exchanger sequentially provided in the air passage of the air conditioning case in an air flow direction; and doors for adjusting the opening degree of the air passage in the air conditioning case via rotation, wherein an airflow control door is arranged downstream of a blower in the air flow direction, and is positioned adjacent to a cutoff region of a blower scroll case.

An HVAC system for a vehicle is provided, that includes a system to use passenger compartment heat for heating air within an HVAC system. The system includes a first air inlet configured, when installed within a vehicle, to receive air that flows therein from outside of the vehicle, and a second air inlet different from the first air inlet, the second air inlet configured, when installed within the vehicle, to receive air that flows therein from within a passenger compartment of the vehicle. A heat exchanger disposed to receive air from the first air inlet and the second air inlet via different flow paths simultaneously across different portions of the heat exchanger, and in some embodiments in substantially opposite directions.

An exemplary thermal management system includes, among other things, a heater loop, a battery loop, a radiator loop, and a power electronics loop operating within a glycol system. A first valve is in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. A second valve is in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. The second valve is fluidly connected to the first valve to provide at least one operational condition where waste heat from power electronics in the power electronics loop is used to heat a battery in the battery loop.

A control apparatus for a vehicle disclosed herein is applied to a vehicle configured to perform pre-air conditioning of the interior of the vehicle by starting an internal combustion engine according to a remote control signal sent from a remote controller. When starting pre-air conditioning according to the remote control signal, the control apparatus sets the control mode of the vehicle to a drive-disabling mode, which is a control mode that disables an operation for driving the vehicle. If a specific mode-cancelling operation is detected in a situation in which the remote controller is present in the interior of the vehicle while the control mode of the vehicle is being set to the drive-disabling mode, the control apparatus cancels the drive-disabling mode while leaving the internal combustion engine operating.

In an air conditioner system for a mobility device, some inside air communicates with an outdoor heat exchanger when outside air for indoor ventilation is introduced, thereby improving heat pump performance. That is, by allowing indoor cold air to communicate with the outdoor heat exchanger upon mixing the inside and outside air during indoor cooling and allowing indoor warm air to communicate with the outdoor heat exchanger upon mixing the inside and outside air during indoor heating, it is possible to increase the heat pump efficiency as the outdoor heat exchanger recovers the heat of the indoor air during indoor cooling and heating. In addition, introduced is an air conditioner system for a mobility device in which a structure is simplified as inside air may be selectively transmitted to an outdoor heat exchanger side only by applying a flow path structure and a valve.

An embodiment is a control method for cooling a battery, the control method including in response to a destination being input to a navigation, determining estimated high-load driving timing of the battery based on estimated driving information of a vehicle, and in response to a determination that a temperature difference between the actual temperature of the battery and a reference temperature before the estimated high-load driving timing is lower than or equal to a precooling operating value, precooling the battery until an actual temperature of the battery reaches a target temperature by controlling an operation of each component of a battery cooling system.

A vehicle system includes temperature sensors positioned in the vehicle and a control module in communication with the temperature sensors. The temperature sensors are configured to measure surface temperatures of objects in the vehicle. The control module is configured to receive the measured surface temperatures from the temperature sensors, determine whether any of the measured surface temperatures is greater than a defined threshold, and in response to any of the measured surface temperatures being greater than the defined threshold, transmit an alert signal to a user communication device indicative of the objects in the vehicle having the measured surface temperatures greater than the defined threshold.

A method of operating an air circulation system for a recreational vehicle may include analyzing a temperature profile within a passenger compartment of the recreational vehicle. The method may include transmitting a pulse-input code to the furnace. The pulse-input code being based on the analyzed temperature profile. The method may include directing operational parameters of the furnace based on the transmitted pulse-input code.

An exemplary thermal management system includes, among other things, a heater loop, a battery loop, a radiator loop, and a power electronics loop operating within a glycol system. A first valve is in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. A second valve is in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. The second valve is fluidly connected to the first valve to provide at least one operational condition where waste heat from power electronics in the power electronics loop is used to heat a battery in the battery loop.