A motor vehicle comprises an HVAC system including a climate control circuit coupled to onboard sensors, a human-machine interface, and climate actuators. The actuators are responsive to respective command parameters generated by the control circuit in response to the sensors and the human-machine interface. A wireless communication system transmits vehicle HVAC data to and receives crowd data from a remote server. The control circuit initiates a request for crowd data via the communication system to the remote server, wherein the request includes peer parameters for identifying a vehicle environment. The control circuit receives a response via the communication system from the remote server. The response comprises crowd data and at least one weight indicating a confidence level associated with the crowd data. The control circuit generates at least one command parameter using a set of fuzzy rules responsive to the crowd data and the weight from the response.

A system for PTO-driven refrigeration includes a generator that is configured to be mechanically connected to a power takeoff (PTO) and a converter that is configured to receive AC power from the generator and is operable to convert the AC power to DC power. The generator is connected to a charge controller that is connected to an energy storage element. The energy storage element is connected to a controller configured to receive DC power and provide AC power to a motor. The motor may be mechanically connectable to a refrigeration system. The energy storage element is further configured to receive power from a second charge controller that receives power via an AC power input or solar system.

A ventilation system for a vehicle includes a duct with an outlet. A housing is in fluid communication with the outlet. A vane is disposed within the housing. The vane has a first pivot axis and a second pivot axis. A first electric motor is configured to pivot the vane relative to the first pivot axis, and a second electric motor is configured to pivot the vane relative to the second pivot axis. A controller is configured to control the first electric motor to pivot the vane relative to the first pivot axis and to control the second electric motor to pivot the vane relative to the second pivot axis.

Disclosed is an HVAC control device for controlling a vehicle climate control sys-tem having a plurality of control elements. The HVAC control device includes a housing having a common size dimensioned for installing in a complementary receptacle in the vehicle climate control panel, the size common to replacement vehicle climate control panels for vehicles made by one than on vehicle manufacturer. On the front surface of the housing is a user interface by which a user can operate the vehicle climate control system. In the housing is a controller adapted to control more than one different vehicle climate control system.

A method of notifying in-car air pollution is disclosed and includes: a) providing an in-car air pollution detection system including at least one in-car gas detection module, at least one out-car gas detection module, an in-car air conditioner including an audio element and a display element, and a plurality of filtering and purification components disposed in the interior space of the car for filtering and purifying the air pollution source in the interior space of the car; b) notifying an initial value of the in-car gas detection datum; c) notifying a post-purification value of the in-car gas detection datum, wherein the post-purification value of the in-car gas detection datum is broadcasted by the audio element and/or displayed by the display element of the in-car air conditioner; and d) intelligently selecting an external gas to be introduced or not to be introduced into the interior space of the car.

There is described an air conditioning system with a refrigerant circuit, wherein the air conditioning system includes a leakage detection system. The leakage detection system comprises a room temperature sensor, an inlet temperature sensor for detection of a refrigerant temperature at a refrigerant inlet of a refrigerant evaporator, and an outlet temperature sensor for detection of a refrigerant temperature at a refrigerant outlet of the refrigerant evaporator. The sensors (34, 36, 40) are coupled with a calculating unit. In addition, there is described a method for leakage detection, in which a room temperature of the room to be air-conditioned is detected before the refrigerant evaporator on an air inlet side, a refrigerant inlet temperature is detected at the refrigerant inlet of a refrigerant evaporator, and a refrigerant outlet temperature is detected at a refrigerant outlet of the refrigerant evaporator.

A method for determining a vehicle heating, ventilation, and air conditioning (HVAC) passenger cabin air filter filtration performance includes determining a vehicle-exterior atmospheric particulate contaminant concentration, a passenger cabin air filter efficiency, and an HVAC airflow rate. The passenger cabin particulate contaminant concentration is calculated from the determined atmospheric particulate contaminant concentration, passenger cabin air filter efficiency, and HVAC airflow rate.

An air filter monitoring system and method includes a plenum, a pressurization blower, a first motor driving the pressurization blower, a first motor current sensor, a recirculation blower, a second motor driving the recirculation blower, a second motor current sensor, a speed selector, a fresh air filter, a recirculation air filter, a pressurization blower speed sensor, a recirculation blower speed sensor, and a non-transitory computer readable medium comprising a program instruction for permitting a controller to monitor the HVAC system. The program instruction is adapted to produce a first and a second motor control signal to drive independently the pressurization blower and the recirculation blower, respectively. The first and second motor control signals are a function of the speed sensor signals to maintain a constant speed. Comparing a first and second motor current sensor signal to a baseline and triggers a replacement action when either signal falls below a threshold.

Disclosed are exemplary embodiments of controls for heating, ventilation, and/or air conditioning systems. In an exemplary embodiment, a control for a heating, ventilation, and/or air conditioning system includes an alphanumeric display and one or more input device. A processor of the control is configured to receive a user input through the input device(s), and in response to the user input, reorient a display of a message relative to the alphanumeric display.

A moveable graphical user interface object is provided. The moveable graphical user interface object is moveable within a bounded graphical region. A current location of the moveable graphical user interface object in the bounded graphical region corresponds to an indicated direction of concentrated airflow. For example, the moveable graphical user interface object is used to control airflow direction of a HVAC air vent.