A system for providing allergen information includes an allergen sensor located on a vehicle designed to detect allergen data corresponding to levels of at least one allergen in an environment of the vehicle. The system further includes a network access device located on the vehicle and designed to transmit the allergen data to a remote server and to receive an allergen map from the remote server, the allergen map being based on the allergen data from the vehicle and from additional vehicles, and indicating the levels of the at least one allergen at various locations on the allergen map. The system further includes an output device designed to output data. The system further includes an electronic control unit (ECU) coupled to the allergen sensor, the network access device, and the output device and designed to control the output device to output the allergen map received from the remote server.

A smart multi-modal vehicular air filtration management system including a first filter element and a second filter element disposed in a fresh air housing, wherein the fresh air housing has an inlet and an outlet. Additionally, a third filter element is provided which is disposed in a cabin housing, the cabin housing having one or more inlet. A fluid channel arranged between the fresh air and cabin housing. Finally, a diverter is included which is disposed near an outlet of the fresh air housing, wherein the diverter is configured to cause air to flow through the fresh air housing selectively through one or both of the first filter element and the second filter element.

Described herein is a system and method for detecting malodor within a cabin of an autonomous vehicle, wherein initiation of a remediation system and/or dispatch of the autonomous vehicle to a service hub for mitigating the malodor is based upon sensor signals that monitor the cabin of the autonomous vehicle. The remediation system can include devices such as an HVAC system or a window, which are operated to reduce the concentration of airborne molecules in the cabin of the autonomous vehicle when the concentration of airborne molecules exceeds an air quality threshold. A dispatch protocol may be initiated to dispatch the autonomous vehicle to a service hub when the malodor is associated with certain predefined incidents or when remediation fails to reduce the concentration of airborne molecules below the air quality threshold.

An odor reproducing apparatus of a HVAC system for the vehicle may include an odor reproducing device configured to reproduce and evaluate odor by applying a HVAC system module, a heat exchange outdoor device mounted at one side of the odor reproducing device to control a temperature and humidity of an experimental space, and a control device mounted at one side of the odor reproducing device and the heat exchange outdoor device to control an operation of the odor reproducing device and an operation of the heat exchange outdoor device to implement a field environment and vehicle conditions for evaluating an odor improvement effect of the HVAC system reflecting an odor reduction technology.

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.

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.

A method of operating a vehicle climate system when an ambient temperature is below a threshold temperature is provided. In response to an ambient temperature being less than a threshold temperature, a controller is adapted to operate a blower motor at a voltage that depends on whether the vehicle is in charge sustain mode or charge deplete mode. In response to an ambient temperature being greater than a threshold temperature, the controller is adapted to operate the blower motor at a voltage that does not depend on whether in the charge sustain or charge deplete modes.

A system includes a blower, a blower sensor, and at least one processor. The blower sensor is operably coupled to the blower and configured to obtain blower operational information. The at least one processor is operably coupled to the blower and the blower sensor, and is configured to determine an operational-based power using the blower operational information; determine an operational-based density using the operational-based power; and control the blower using the operational-based density.

A remote sensor calibration system remotely calibrates sensors of various types in an automated fashion. The remote sensor calibration system receives sensor output, associated with one or more locations and one or more times, from a sensor and its peer sensor population. The sensor output from the sensor and its peer sensor population is compared to generate a correction factor. The correction factor is transmitted to the sensor and used to calibrate the sensor. Communication will typically occur via one or more wireless links allowing the sensors to be remotely calibrate while maintaining their mobility.

Embodiments of the present invention are directed to a method and system for preventing ingestion of ambient air contaminated with possibly harmful, toxic, or flammable battery gases into a passenger compartment of a vehicle in the event of a battery failure. If an abnormal state is detected in a battery pack of the vehicle, the vehicle automatically switches the HVAC system to air recirculation mode, thereby preventing any toxic gas emitted from the battery pack from entering the passenger compartment.