System and method for reducing volatile organic compounds within a vehicle

• US 10,399,409 B2
• Filed: 05/16/2017
• Issued: 09/03/2019
• Est. Priority Date: 05/16/2017
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Wang, Wenshui, Li, Yan, Jiang, Xingli, Zhu, Xiaolin
• Primary Examiner(s): McAllister, Steven B
• Assistant Examiner(s): Lin, Ko-Wei
• Application Number:
  US15/596,429
• Publication Number:
  US 20180334010A1
• Time in Patent Office: 840 Days
• Field of Search: None
• CPC Class Codes: B60H 1/008 the input being air quality
• CPC Class Codes: B60H 1/00864 Ventilators and damper doors
• CPC Class Codes: B60H 1/00978 Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods

Abstract

Systems and methods according to the principles of the present disclosure include determining whether a volatile organic compound (VOC) characteristic within a cabin of a vehicle exceeds a predefined volatile organic compound threshold. Systems and methods can also include causing a blower of a Heating, Ventilation, and Cooling (HVAC) system of the vehicle to generate an airflow within the cabin for a predefined time period, an air distribution mode of operation to transition from a non-operational state to an operational state, cause an air intake mode of operation to transitions from a non-operational state to an operational state, or causing at least one window of the vehicle to transition from a closed position to an open position for the predefined time period when the volatile organic compound characteristic exceeds the predefined volatile organic compound threshold to reduce volatile organic compounds within the vehicle.

Claims

1. A system comprising:

a volatile organic compound comparison module that is configured to determine whether a volatile organic compound concentration within a cabin of a vehicle exceeds a predefined volatile organic compound threshold; and

a volatile organic compound reduction control module that is configured to at least one of cause a blower of a Heating, Ventilation, and Cooling system of the vehicle to generate an airflow within the cabin for a predefined time period, cause an air distribution mode of operation to transition from a non-operational state to an operational state, cause an air intake mode of operation to transition from a non-operational state to an operational state, and cause at least one window of the vehicle to transition from a closed position to an open position for the predefined time period when the volatile organic compound concentration exceeds the predefined volatile organic compound threshold to reduce volatile organic compounds within the vehicle,

wherein the volatile organic compound reduction control module is further configured to cause the blower to generate the airflow within the cabin for the predefined time period and to cause the at least one window of the vehicle to transition from the closed position to the open position for the predefined time period when the volatile organic compound concentration exceeds the predefined volatile organic compound threshold and when a vehicle age of the vehicle is below a vehicle age threshold.

2. The system of claim 1, further comprising a volatile organic compound sensor that is configured to measure the volatile organic compound concentration within the cabin of the vehicle.

3. The system of claim 2, wherein the volatile organic compound sensor comprises at least one of a semiconductor resistor device, a photoionization detector, and an optical fiber volatile organic compound sensor.

4. The system of claim 2, further comprising a self-test module that is configured to initiate a built-in test to determine whether a compound concentration exceeds a predefined compound threshold.

5. The system of claim 4, wherein the self-test module initiates a self-cleaning operation for the volatile organic compound sensor when the compound concentration exceeds the predefined compound threshold and generates an alert when the self-cleaning operation fails, wherein the self-cleaning operation comprises causing a displacement device within a photoionization detector to transition from an operation state to a non-operational state.

6. The system of claim 1, further comprising a timer module that is configured to generate a timer signal that is provided to the volatile organic compound reduction control module when the predefined time period has elapsed such that the volatile organic compound reduction control module is configured to generate a termination control signal to cause the blower to transition from an operational state to a non-operational state and to cause the at least one window to transition from the open position to the closed position.

7. The system of claim 1, wherein the volatile organic compound reduction control module is further configured to adjust a speed of the blower and to adjust the open position of the at least one window based upon an environmental pollutant concentration indicative of an environment external to the vehicle.

8. The system of claim 1, wherein the volatile organic compound reduction control module is further configured to generate an alert message when an external air quality concentration exceeds a predefined external air quality threshold, wherein the alert message is displayed at a user interface.

9. The system of claim 1, wherein the volatile organic compound reduction control module is further configured to cause the blower to generate the airflow within the cabin for the predefined time period and to cause at least one window of the vehicle to transition from a closed position to an open position for the predefined time period when a volatile organic compound reduction initiation signal is received from a remote vehicle manager system.

10. A method comprising:

determining whether a volatile organic compound (VOC) concentration within a cabin of a vehicle exceeds a predefined volatile organic compound threshold;

causing at least one of a blower of a Heating, Ventilation, and Cooling (HVAC) system of the vehicle to generate an airflow within the cabin for a predefined time period, an air distribution mode of operation to transition from a non-operational state to an operational state, an air intake mode of operation to transitions from a non-operational state to an operational state, and at least one window of the vehicle to transition from a closed position to an open position for the predefined time period when the volatile organic compound concentration exceeds the predefined volatile organic compound threshold to reduce volatile organic compounds within the vehicle; and

causing the blower to generate the airflow within the cabin for the predefined time period and causing the at least one window of the vehicle to transition from the closed position to the open position for the predefined time period when the volatile organic compound concentration exceeds the predefined volatile organic compound threshold and when a vehicle age of the vehicle is below a vehicle age threshold.

11. The method of claim 10, further comprising measuring the volatile organic compound concentration within the cabin of the vehicle via a volatile organic compound sensor.

12. The method of claim 11, wherein the volatile organic compound sensor comprises at least one of a semiconductor resistor device, a photoionization detector, and an optical fiber volatile organic compound sensor.

13. The method of claim 11, further comprising initiating a built-in test to determine whether a compound concentration exceeds a predefined compound threshold.

14. The method of claim 13, further comprising initiating a self-cleaning operation for the volatile organic compound sensor when the compound concentration exceeds the predefined compound threshold;

and generating an alert when the self-cleaning operation fails, wherein the self-cleaning operation comprises causing a displacement device within a photoionization detector to transition from an operation state to a non-operational state.

15. The method of claim 10, further comprising measuring the predefined time period upon receiving a volatile organic compound comparison signal indicating that the volatile organic compound concentration exceeds the predefined volatile organic compound threshold and generating a timer signal to cause the blower to transition from an operational state to a non-operational state and to cause the at least one window to transition from the open position to the closed position.

16. The method of claim 10, further comprising adjusting a speed of the blower based upon an environmental pollutant concentration indicative of an environment external to the vehicle;

and adjusting an open position of the at least one window based upon the environmental pollutant concentration.

17. The method of claim 10, further comprising generating an alert message when an external air quality concentration exceeds a predefined external air quality threshold;

and causing the alert message to be displayed at a user interface.

18. The method of claim 10, further comprising causing the blower to generate the airflow within the cabin for the predefined time period and causing at least one window of the vehicle to transition from a closed position to an open position for the predefined time period when a volatile organic compound reduction initiation signal is received from a remote vehicle manager system.