A vehicle air conditioning system, including: a vehicle interior environmental information acquisition unit that acquires environmental information of a vehicle interior; a vehicle exterior environmental information acquisition unit that acquires environmental information of surroundings of the vehicle; a sensible temperature prediction unit that predicts a sensible temperature of an occupant of the vehicle after a predetermined amount of time has elapsed, based on the environmental information acquired by the vehicle cabin interior environmental information acquisition unit and the vehicle cabin exterior environmental information acquisition unit; and an air conditioner controller that controls an air conditioner based on information regarding a future sensible temperature of the occupant which has been predicted by the sensible temperature prediction unit and a comfortable sensible temperature of the occupant which is stored in a storage unit.

Disclosed is a temperature control method which includes acquiring temperature data of a plurality of temperature detection points in a target environment; calculating, according to the temperature data, an average temperature value of the plurality of temperature detection points and a first temperature difference between the average temperature value and a target temperature value; determining whether an absolute value of the first temperature difference exceeds a first temperature difference threshold; and in response to the absolute value of the first temperature difference exceeding the first temperature difference threshold, controlling the temperature of the target environment by a variable universe fuzzy proportional integral derivative control algorithm.

A method of controlling a temperature altering element within a seating assembly of a vehicle comprising: presenting a vehicle including a seating assembly including a temperature altering element, a controller in communication with the temperature altering element, the controller including a Pre-established Predictive Activation Model setting forth rules governing the activation of the temperature altering element as a function of data relating to Certain Identifiable Conditions, and a user interface configured to allow the temperature altering element to be manually activated or deactivated; occupying the seating assembly with a first occupant; collecting data relating to the Certain Identifiable Conditions while the first occupant is occupying the seating assembly; determining, by comparing the collected data to the rules of the Pre-established Predictive Activation Model, whether the collected data satisfies the rules of the Pre-established Predictive Activation Model so as to activate the temperature altering element; and activating the temperature altering element.

A system includes heat generating components in a vehicle and a coolant flow path connected to the heat generating components. The system includes a coolant pump that circulates coolant through the coolant flow path and a reversing mechanism that reverses a direction of circulation of coolant.

A system includes a casing configured to allow air to flow towards a vehicle interior or cabin. An air treatment cavity contains a heater core of a cooling circuit. A control unit is provided which is configured to control the temperature of the air. An interface device provides the control unit with a required temperature command. An actuator is configured to adjust, in a controlled way by the control unit, the opening of a flow control valve situated upstream of the heater core. The system further includes a temperature sensor configured to detect temperature data representative of the temperature reached by the air flowing into the air treatment cavity downstream of the heater core. The control unit is also configured to control the actuator also as a function of the temperature data as a function of the temperature command.

A method for operating a coolant circuit of a refrigeration system of a vehicle having multiple system sections. A single pressure sensor is located in each system section. A temperature sensor is arranged downstream at each component to be balanced in the system sections, such as heat exchangers and a coolant compressor. The sensor signals of the pressure and temperature sensors are supplied to a control unit for the control or regulation of the refrigeration system. Furthermore, a pressure approximation value at the position of the temperature sensor is calculated by a pressure loss value determined using a pressure loss calculation function starting from the position of the pressure sensor arranged in the system section of the component up to the position of the temperature sensor if the temperature sensor and the pressure sensor are arranged at different positions in the system section.

An embodiment method for controlling a heating, ventilation, and air conditioning (HVAC) system of a vehicle includes determining a target subcooled temperature of a refrigerant based on a temperature and a pressure of the refrigerant discharged from an outlet of a compressor when the compressor operates, calculating a change in enthalpy of the refrigerant based on the determined target subcooled temperature in a process of condensing and subcooling the refrigerant, calculating a change in enthalpy of air passing over an exterior surface of a condenser based on the calculated refrigerant enthalpy change, and calculating a required fan duty of a cooling fan based on the calculated air enthalpy change, wherein the cooling fan is configured to blow the air to the condenser.

A heater control device controls an electric heater which includes a plurality of heat generating portions. The heater control device determines whether a total energization current value, which is a current value to be supplied to the electric heater when all of the plurality of heat generating portions are energizable, exceeds a predetermined current limit value. The heater control device is configured to, when it is determined that the total energization current value exceeds the current limit value, energize the electric heater while switching, among any or all of the plurality of heat generating portions, those to be turned to a non-energizable off state.

Examples of the present disclosure relate to systems and methods for providing cooling and/or heating in a vehicle. For example, the systems and methods may cool and/or heat a vehicle cabin while the vehicle’s engine is not idling or otherwise in operation, without consuming excessive power stored by a vehicle battery. In example implementations, thermoelectric cooling cells may be used.

A method for activating a pre acclimatization system of the passenger compartment of a vehicle includes monitoring an operational state of the vehicle, including a first state in which the vehicle is on and a second state in which the vehicle is off. In the second state, the method includes monitoring a plurality of conditions, the conditions selected from a group including current time and date, a driver appointment schedule, a historical database, wherein the monitoring step is performed by a system controller incorporated into the vehicle. The method further includes determining the most probable time of departure of the vehicle from a present location based on the plurality of conditions monitored by the system controller, suggesting time of departure to the driver, monitoring reply from the driver, setting timer for activating the pre acclimatization according to reply from the driver, and activating sleep mode for the vehicle systems.