US 6,685,099 B2 · Cabin air purge strategy

Abstract

A ventilation system for purging air contained with a vehicle interior is disclosed. The ventilation system includes a blower, a first vent, a second vent, at least one interior temperature sensor, at least one external temperature sensor, a motion sensor for windy days and dusty areas, a humidity sensor, a sunload sensor and a control module. The blower is a conventional vehicle air conditioning blower and is located within the vehicle interior for creating a pressure differential between the interior and exterior of the vehicle. The first vent expels air from the vehicle interior and the second vent draws external air into the vehicle interior. The at least one interior sensor is located within the vehicle interior for determining an interior condition of the vehicle. The at least one external sensor determines an external condition of environment external to the vehicle interior. Finally, the control module is in communication with the blower, first and second vents, interior and exterior sensors for monitoring the internal and exterior sensors and comparing the sensor outputs to predefined thresholds for actuating the blower, first and second vents to exhaust the air contained within the interior of the vehicle and draw in ambient air.

Claims13

Dependent claims

A ventilation system for purging air contained within a vehicle interior, the system comprising:

a blower located within the vehicle interior for creating a pressure differential between the vehicle interior and an exterior of the vehicle;
a first vent in communication with the vehicle interior and exterior for expelling air from the vehicle interior;
a second vent in communication with the vehicle interior and exterior for drawing external air into the vehicle interior;
at least one interior sensor located within the vehicle interior for sensing an interior condition of the vehicle;
at least one exterior sensor located external to the vehicle interior for sensing an external condition of an environment external to the vehicle interior;
an ignition sensor in communication with a vehicle ignition switch for outputting a vehicle, ignition switch signal indicative of a state of the vehicle ignition switch;
and
a control module for controlling the blower, first and second vents, and for monitoring the interior and exterior sensors and comparing the sensor outputs to a plurality of predefined thresholds for actuating the blower, first and second vents to exhaust the air contained within the interior of the vehicle after the control module has determined that the vehicle ignition switch has been turned to an off state for a predefined period of time.

5 more elements

Dependencies are inferred from the claim text.

Cabin air purge strategy

Life of this patent

Cabin air purge strategy

Life of this patent

Abstract

Claims13