A server, an apparatus and a method for determining an impact on components of a temperature-controlled unit of a vehicle. The method includes receiving information of one or more parameters associated with one or more components of a temperature-controlled unit of a vehicle. Further, the information of the one or more parameters are received in response to a change in acceleration of the vehicle. The method also includes determining an impact on the one or more components of the temperature-controlled unit due to the change in the acceleration. The method further includes transmitting a notification to a device based on the impact on the one or more components of the temperature-controlled unit.

A vehicle having a heating and cooling system includes a refrigerant loop for conveying refrigerant, a coolant loop for conveying coolant, a chiller configured to convey the refrigerant and the coolant, and a vessel coupled to the chiller and having a phase change material disposed therein. The phase change material is configured to freeze via heat transfer from the phase change material to the refrigerant and melt via heat transfer from the coolant to the phase change material.

A method of operating a stop-start vehicle with an HVAC system that does not include an electric auxiliary coolant pump for circulating warm coolant to a heater core of the HVAC system in an engine-off condition of the vehicle comprises the steps of driving the vehicle via compulsion by an engine in an environment having an ambient outside temperature of about or less than 30 degrees Fahrenheit, entering an auto stop event, such that the engine enters the engine-off condition, and circulating heated air into a cabin of the vehicle in the engine-off condition for at least one minute. The heated air is circulated by decreasing the speed of a blower motor, adjusting a recirculation door position to increase air recirculation, and adjusting a temperature blend door position toward a full-heat position based on a sensed engine coolant temperature and a sensed evaporator core temperature.

A HVAC thermal conditioning system provides a macroclimate environment. An auxiliary thermal conditioning system has multiple microclimate devices in close proximity to a region of the occupant. The microclimate devices are arranged within an interior space that provides the macroclimate environment to an occupant. A controller communicates with the microclimate devices and calculates an occupant personal comfort based upon a thermal energy experienced by the occupant from thermal radiation sources, thermal convection sources, and thermal conduction sources, and to automatically command the microclimate devices in response to the calculated occupant personal comfort to achieve a desired occupant personal comfort. The automatic command adjusts and apportions the thermal conduction sources and/or thermal radiation sources to achieve the desired occupant personal comfort. A power management module adjusts the HVAC thermal conditioning system while adjusting and apportioning the thermal conduction sources and/or thermal radiation sources to achieve the desired occupant personal comfort.

The present disclosure provides a pressure relief valve configured to adjust a pressure of a vehicle cabin. The pressure relief valve includes: a housing, a passage opening cover, and an implementing mechanism. The housing is provided with a passage therein, the passage is configured to be capable of bringing the vehicle cabin into fluid communication with an outside atmosphere, and the passage has a passage opening. The passage opening cover is configured to be movable between an open position and a closed position, the passage opening is open when the passage opening cover is in the open position, and the passage opening is closed when the passage opening cover is in the closed position. The implementing mechanism is configured to drive the passage opening cover such that the passage opening cover is movable between the open position and the closed position. According to the present disclosure, signal information of pressure in a vehicle cabin, wading and dust density is obtained, and a traditional rotary opening mode of the pressure relief valve is changed into a linear opening mode through motor driving, such that electrification of the pressure relief valve is achieved, noise from the outside of the vehicle is reduced, and waterproof and dustproof performances of the pressure relief valve are improved.

A method of controlling heating of a hybrid electric vehicle is provided. The method includes receiving a heating request from a driver; determining whether an entry condition of pre-FATC engine ON request (PFEOR) control is satisfied; checking whether the vehicle is capable of entering a HEV mode; determining whether the vehicle enters an idle mode for the PFEOR control; issuing a command for a target engine torque value and a target revolutions per minute for the idle mode to an engine control unit (ECU) from a hybrid control unit (HCU); and performing an engine idle speed control along with engine ON based on the command.

A computer includes a processor and a memory, the memory storing instructions executable by the processor to collect (a) ambient weather data, (b) vehicle speed data including at least one of a vehicle speed or an engine speed, and (c) operation data of a climate control subsystem of a vehicle, input the collected data to a regression program trained to output a predicted pressure of refrigerant of the climate control subsystem, the regression program trained with previously determined ambient weather data, data of a previous vehicle speed or a previous engine speed, and previous operation data of the climate control subsystem, determine an actual pressure of the refrigerant in the climate control subsystem, and actuate a component upon determining that a difference between the predicted pressure and the actual pressure falls below threshold.

A vehicle air conditioning control system includes an electric heater, a direct-current-to-direct-current converter, an engine system temperature sensor, and a controller. The electric heater applies heat to an air conditioning airflow. The direct-current-to-direct-current converter converts a voltage of electric power of an in-vehicle battery. The engine system temperature sensor measures a temperature of one or each of an engine and a related member. The controller controls an operating state of the electric heater based on the temperature. Upon determining, based on the temperature, that the electric heater is to operate, the controller performs a control of switching the operating state between: an operating state where the electric heater is turned on and the direct-current-to-direct-current converter is caused to output a short-time current; and an operating state where the electric heater is turned off and the direct-current-to-direct-current converter is caused to output a steady-state current.

A transportation refrigeration system including: a transportation refrigeration unit; an energy storage device configured to provide electrical power to the transportation refrigeration unit; an electric generation device operably connected to at least one of a wheel and a wheel axle of the transport refrigeration system, the electric generation device being configured to generate electrical power from at least one of the wheel and the wheel axle to charge the energy storage device when the electric generation device is activated; a rotational velocity sensor configured to detect a rotational velocity of the electric generation device; and a power management module in electrical communication with the energy storage device, the electric generation device, and the rotational velocity sensor, wherein the power management module is configured to decrease a torque limit of the electric generation device when the rotational velocity of the electric generation device decelerates greater than a selected deceleration.

A method, system, and apparatus are provided for optimizing control of the rotational speed of a fan in a vehicle so as to reduce the aerodynamic drag of a vehicle in a given operating parameter, and accordingly, to improve fuel efficiency of operation of the vehicle. Certain exemplary embodiments include determining an optimized speed of rotation of a cooling fan of the vehicle for reducing overall fuel demand in given operating conditions, and controlling rotation speed of the fan at the optimized speed in order to minimize fueling demand of a prime mover of the vehicle.