A vehicle air conditioning device includes a compressor and a controller. The controller is configured to set an upper limit value of the rotation speed of the compressor based on a combination of whether the speed of the vehicle is lower than a predetermined speed and whether a rotation speed of a fan device for a condenser is lower than a predetermined rotation speed.

Systems and methods for managing auto start of a vehicle during an auto-stop condition may include determining an operational status of a vehicle climate control system; receiving a target air outlet temperature from the vehicle climate control system; receiving data indicating a state of a heated seat of the vehicle; and inhibiting a start-vehicle command to restart the vehicle because of a cabin heating requirement when the data indicates that the heated seat of the vehicle is activated.

An electric motor vehicle temperature adjustment system includes: an air conditioning refrigerant circuit including a compressor compressing a refrigerant, an air conditioning evaporator provided upstream of the compressor, and an air-cooled condenser condensing the refrigerant flowing out of the compressor with outside air; a battery cooling circuit including a battery evaporator and configured to flow cooling water cooling a main battery; an electric component cooling circuit provided separately from the battery cooling circuit, and including an electric component radiator; a first switching unit configured to perform switching between connection and disconnection of the battery cooling circuit and the electric component cooling circuit; and a motor cooling circuit provided separately from the battery cooling circuit and the electric component cooling circuit and configured to flow cooling water that cools a motor.

Disclosed is a heat pump system for an electric vehicle including an outdoor fan configured to blow air to an outdoor heat exchanger, a coolant temperature sensor installed at a coolant line and configured to detect a temperature of a coolant circulating in a power train module or a battery, an outdoor heat exchange sensor installed on one side of the outdoor heat exchanger and configured to detect an outdoor heat exchanger outlet pressure defined as a pressure of a refrigerant passing through the outdoor heat exchanger, and a compressor inlet sensor installed on an intake side of a compressor and configured to detect a compressor inlet temperature defined as a temperature of the refrigerant flowing into the compressor. Whether frost sticking occurs may be determined based on information detected by the coolant temperature sensor, the outdoor heat exchange sensor, and the compressor inlet sensor.

An automated manual transmission (AMT) shift shock reduction control method may include a compressor delay control that is configured to keep an operation of a compressor as a non-operation state until a delay time is reached during a shift control, when an air conditioner signal and a shift signal are detected by an Engine Management System (EMS).

A vehicle climate system includes a blower and a controller. The controller is configured to, responsive to input of a particular user selected climate setting, operate the blower with an initial power having a predetermined value corresponding to the climate setting provided that cabin temperature is outside a predetermined range. The controller is also configured to operate the blower with an initial power having a value less than the predetermined value provided that the cabin temperature is within the predetermined range.

A vehicle thermal management system including an electric powertrain, a single thermal loop, and a controller is provided. The electric powertrain includes a high voltage battery. The single thermal loop is for managing thermal conditions of the high voltage battery and a vehicle cabin and may include a climate control system, a blower, and a front evaporator in fluid communication with the vehicle cabin. The controller is programmed to, responsive to detection of a climate control system off request, output a command to direct the blower to push air through a heater core to the vehicle cabin at a predetermined temperature such that a temperature within the vehicle cabin is maintained at a predetermined temperature and refrigerant continues to flow through the front evaporator. The system may include a vehicle cabin temperature sensor and an ambient temperature sensor, each in electrical communication with the controller.

An auxiliary system for air conditioning the vehicle's passengers' cabin, upon detecting that the ambient temperature inside the cabin is above a preconfigured threshold temperature, when the vehicle's primary engine is not operating, and optionally, when an accident occurs. The auxiliary sub system may further provide electric power to various units of a vehicle, including charging the vehicle's battery, and including when the primary engine of the vehicle is turned OFF.

A battery electric vehicle includes a passenger cabin, a refrigerant circuit adapted to cool the passenger cabin, a powertrain including a high voltage powertrain component, a coolant circuit adapted to cool the high voltage powertrain component and a control module. The refrigerant circuit includes a condenser and an evaporator. The coolant circuit includes a radiator downstream from the condenser. The control module is configured to recirculate cabin air to the passenger cabin in response to data indicating temperature of the high voltage powertrain component exceeds a predetermined threshold temperature in order to reduce the air outlet temperature at the condenser and the air inlet temperature at the radiator. A related method to cool a high voltage powertrain component of a battery electric vehicle is also disclosed.

A system for managing transport refrigeration units (28) is provided. The system includes a storage device (80) to store transport parameters (82) associated with a transport refrigeration unit (28). The storage device storing historical transport parameters (84) for other transport refrigeration units (28). Also included is an equipment management system (90) coupled to the storage device, the equipment management system (90) including: a diagnostic module (92) to determine a condition of the transport refrigeration unit (28) in response to the transport parameters (82); a predictive maintenance module (94) to determine a need for upcoming maintenance of the transport refrigeration unit (28) in response to the transport parameters (82); and a remaining life module (96) to determine a remaining life of at least one component of the transport refrigeration unit (28) in response to the transport parameters (82).