A system for ventilating a vehicle cabin includes a powered vent, such as a window or sunroof, for opening and closing to selectively ventilate the vehicle cabin. A controller may be provided for: (1) opening the powered vent based on a pre-determined opening time; (2) controlling the powered vent to activate based on a pre-determined parking location; and/or (3) controlling the powered vent to activate based on a sunlight intensity.

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 method is provided that includes a number of operations performed in real-time during operation of a vehicle. That is, the method may include detecting fog on an interior surface of the window using one or more sensors according to a process, and automatically activating a fog protection system to reduce or prevent fog on the interior surface of the window in an instance in which fog is detected according to the process. For each sensor, the process may include receiving a measurement from the sensor. And from the measurement, the process may include identifying or calculating a dew-point temperature in a compartment of the vehicle including the window to an exterior thereof, and detecting fog on the interior surface of the window in an instance in which the dew-point temperature is near, at, or above a surface temperature of the interior surface of the window.

A method for controlling a vehicle thermal management system includes determining an outdoor air fraction (OAF) based on a temperature of a battery when the outdoor air intake into a passenger compartment is required, wherein the OAF increases as the temperature of the battery increases, and the OAF decreases as the temperature of the battery decreases.

When an air conditioning ECU determines that it is immediately before idling stop, the air conditioning ECU implements a front seat air conditioning mode even if the air conditioning ECU determines that an occupant intensive air-conditioning mode can be implemented. Accordingly, the air conditioning ECU controls opening and closing mechanisms so as to blow a conditioned air from driver's seat side outlet ports, and also blow the conditioned air from a passenger's seat side foot outlet port. Hence, in cooling operation, since a temperature increase of air drawn into an inside air inlet port is limited when the idling stop is carried out, temperature increase of air blown into the vehicle interior from the outlet port can be restricted. In other words, a temperature change in the vehicle interior can be limited when a travel engine stops due to the idling stop.

An air conditioner system for mobility is provided. The air conditioner system is configured to secure the air conditioning performance in cooling and heating conditioning and to prevent a battery from being deteriorated as the battery is prevented from being overcharged while the air conditioner system is driven when the battery is charged by the regenerative breaking while the charge amount of the battery is already high.

In an example embodiment, a controller controls the HVAC system, dampers, fans, and heater/coolers in seats to heat or cool the interior and the seats to a desired temperature. The controller may control the temperature and/or the flow of air through a plurality of ducts and the heater/coolers in the seats to heat or cool regions of the interior and the seats to a desired temperature.

A heating, ventilation, and air-conditioning (HVAC) system includes a blower, a fresh-air valve, a bypass duct, and a bypass valve. The blower is configured to urge air to flow from an inlet to an outlet of the blower. The fresh-air valve is operable to provide a mixture of air drawn from an outside-air duct and a recirculated-air duct to the inlet. The fresh-air valve is operable to a recirculate position where the outside-air duct is substantially blocked from communicating with the inlet. The bypass duct is configured to couple the outlet to the outside-air duct. The bypass valve is located in the bypass duct and is operable to a closed position and an open position. The cabin is ventilated when the fresh-air valve is in the recirculate position, the bypass valve is in the open position, and the blower is operated to blow air out of the outside-air duct.

A forced-ventilation device ventilates a compartment of a vehicle by forced ventilation by actuating a blower of an air-conditioning device of the vehicle when the compartment is left at a high temperature. When a mode for forced ventilation has been set by the user, when a mobile device approaching the vehicle together with a user enters a predetermined detection area within which the mobile device is detectable by a response signal, and when the response signal is successfully verified, a control portion switches ON an ignition switch of the vehicle, opens one or two or more windows using an opening and closing mechanism, and directs the air-conditioning device to actuate the blower.

Systems and methods are provided for estimating a quality of air in proximity to a vehicle. In one embodiment, a method includes: determining a radius of the vehicle; estimating a number of vehicles within the radius of the vehicle; estimating the quality of air based on the number of vehicles; and selectively generating a control signal to an air inlet valve based on the quality of air.