In-cabin air quality sensing and purge system for autonomous vehicles

• US 10,286,918 B2
• Filed: 08/31/2016
• Issued: 05/14/2019
• Est. Priority Date: 08/31/2016
• Status: Active Grant

• Current Assignee: Denso International America Incorporated (DENSO Corporation)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: Mullett, Reilly Patrick
• Primary Examiner(s): Smith, Jelani A
• Assistant Examiner(s): Wallace, Donald J
• Application Number:
  US15/252,666
• Publication Number:
  US 20180057013A1
• Time in Patent Office: 986 Days
• CPC Class Codes: B60H 1/008 the input being air quality
• CPC Class Codes: B60H 1/00821 the components being ventilating, air admitting or air distributing devices
• CPC Class Codes: B60H 1/267 Openings in or near to vehicle windows pivoting side windows B60J1/14; wind deflectors associated with windows for ventilating B60J1/20

Abstract

A system and method are provided and include at least one sensor and a controller. The at least one sensor generates data related to indoor air conditions of an autonomous vehicle. The at least one sensor includes at least one of a smoke sensor and an odor/air quality sensor. The controller is in communication with the at least one sensor and controls at least one vehicle system of the autonomous vehicle based on the data related to indoor air conditions of the autonomous vehicle received from the at least one sensor. The at least one vehicle system includes at least one of an HVAC system and a window actuator system. The controller controls the at least one vehicle system to purge and/or exhaust at least one of smoke and an odor detected within the autonomous vehicle.

Claims

1. A system comprising:

at least one sensor that generates data related to indoor air conditions of an autonomous vehicle, the at least one sensor including at least one of a smoke sensor and an odor/air quality sensor; and

a controller in communication with the at least one sensor, the controller being configured to;

(i) detect at least one of smoke and an odor within the autonomous vehicle based on the data related to indoor air conditions of the autonomous vehicle received from the at least one sensor, (ii) determine whether the autonomous vehicle is occupied by a passenger, (iii) control a window actuator system of the autonomous vehicle to increase an opening of at least one window of the autonomous vehicle to a first opening level, the first opening level of the at least one window being less than a maximum opening level of the at least one window, in response to detecting the at least one of the smoke and the odor and in response to determining that the autonomous vehicle is occupied by the passenger, (iv) determine when the passenger has exited the autonomous vehicle, and (v) control the window actuator system to increase the opening of the at least one window to the maximum opening level in response to determining that the passenger has exited the autonomous vehicle

to exhaust the at least one of the smoke and the odor from the autonomous vehicle.

2. The system of claim 1, wherein the autonomous vehicle includes an HVAC system and wherein the controller controls the HVAC system to increase airflow within the autonomous vehicle in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle.

3. The system of claim 1, wherein the autonomous vehicle includes an HVAC system and wherein the controller controls the HVAC system to increase air flow within the autonomous vehicle to a first level of air flow in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle and in response to determining that the autonomous vehicle is occupied by the passenger and controls the HVAC system to increase air flow within the autonomous vehicle to a second level of air flow in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle and in response to determining that the passenger has exited the autonomous vehicle, the first level of air flow being less than the second level.

4. The system of claim 1, further comprising at least one outdoor odor/air quality sensor, wherein the controller controls the window actuator system based on data from the outdoor odor/air quality sensor.

5. The system of claim 1, further comprising at least one weather condition sensor, wherein the controller controls the window actuator system based on data from the weather condition sensor.

6. The system of claim 1, wherein the at least one sensor includes the smoke sensor and the odor/air quality sensor, the system further comprising at least one outdoor odor/air quality sensor and at least one weather condition sensor, and wherein the controller controls the window actuator system based on data from the smoke sensor, the odor/air quality sensor, the at least one outdoor odor/air quality sensor, and the at least one weather condition sensor.

7. A method comprising:

generating, with at least one sensor, data related to indoor air conditions of an autonomous vehicle, the at least one sensor including at least one of a smoke sensor and an odor/air quality sensor;

receiving, with a controller, the generated data related to indoor air conditions of the autonomous vehicle;

detecting, with the controller, at least one of smoke and an odor within the autonomous vehicle based on the generated data related to indoor air conditions of the autonomous vehicle;

determining, with the controller, whether the autonomous vehicle is occupied by a passenger;

controlling, with the controller, a window actuator system of the autonomous vehicle to increase an opening of at least one window of the autonomous vehicle to a first opening level, the first opening level of the at least one window being less than a maximum opening level of the at least one window, in response to detecting the at least one of the smoke and the odor and in response to determining that the autonomous vehicle is occupied by the passenger;

determining, with the controller when the passenger has exited the autonomous vehicle; and

controlling, with the controller, the window actuator system to increase the opening of the at least one window to the maximum opening level in response to determining that the passenger has exited the autonomous vehicle to purge exhaust the at least one of the smoke and the odor detected within the autonomous vehicle.

8. The method of claim 7, wherein the autonomous vehicle includes an HVAC system and wherein the controller controls the HVAC system to increase airflow within the autonomous vehicle in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle.

9. The method of claim 7, wherein the autonomous vehicle includes an HVAC system and wherein the controller controls the HVAC system to increase air flow within the autonomous vehicle at a first level of air flow in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle and in response to determining that the autonomous vehicle is occupied by the a passenger and controls the HVAC system to increase air flow within the autonomous vehicle to a second level of air flow in response to the at least one sensor detecting the at least one of the smoke and the odor within the autonomous vehicle and in response to determining that the passenger has exited the autonomous vehicle, the first level of air flow being less than the second level.

10. The method of claim 7, further comprising generating outdoor air quality data with at least one outdoor odor/air quality sensor, wherein the controller controls the window actuator system based on the outdoor air quality data from the outdoor odor/air quality sensor.

11. The method of claim 7, further comprising generating weather data with at least one weather condition sensor, wherein the controller controls the window actuator system based on the weather data from the weather condition sensor.

12. The method of claim 7, wherein the at least one sensor includes the smoke sensor and the odor/air quality sensor, the method further comprising:

generating, with at least one outdoor odor/air quality sensor, outdoor air quality data; and

generating, with at least one weather condition sensor, weather condition data;

wherein the controller controls the window actuator system based on data from the smoke sensor and the odor/air quality sensor, based on the outdoor air quality data from the at least one outdoor odor/air quality sensor, and based on the weather condition data from the at least one weather condition sensor.