Methods and Systems Providing Seat Ventilation

• US 20140136049A1
• Filed: 11/13/2012
• Published: 05/15/2014
• Est. Priority Date: 11/13/2012
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Sosnowski, Jeffrey W., Kurtovic, Kenan
• Granted Patent: US 8,775,022 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60K 28/04 responsive to presence or absence of the driver, e.g. to weight or lack thereof
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/56 Heating or ventilating devices
• CPC Class Codes: B60N 2/5635 coming from the passenger compartment
• CPC Class Codes: B60N 2/5657 blown towards the seat surface

Abstract

A method of providing seat ventilation using a seat ventilation system (SVS) within a vehicle is provided. The method includes determining whether a vehicle seat is occupied using an air bag ECU. Occupancy information is provided from the air bag ECU to an air conditioning ECU. The air conditioning ECU controls a seat climate module based on the occupancy information received from the air bag ECU.

Claims

1. A method of providing seat ventilation using a seat ventilation system (SVS) within a vehicle, the method comprising:

determining whether a vehicle seat is occupied using an occupant classification sensor in electronic communication with an air bag ECU;

providing occupancy information from the air bag ECU to an air conditioning ECU, the air conditioning ECU controlling a seat climate module based on the occupancy information received from the air bag ECU;

determining whether a user-initiated adjustment is made to an SVS setting using the air conditioning ECU; and

ignoring whether the vehicle seat is occupied for a preselected time period, using the air conditioning ECU, if a user-initiated adjustment is made to the SVS setting.

2. The method of claim 1, wherein the step of determining whether a vehicle seat is occupied includes providing a weight signal to the air bag ECU from the occupant classification sensor.

3. The method of claim 1 further comprising allowing the seat climate module to pull air from an interior of the vehicle through the vehicle seat if the vehicle seat is occupied.

6. The method of claim 1, wherein the preselected time period is between one minute and 30 minutes.

7. The method of claim 1 further comprising deactivating the seat climate module after the preselected time period if the vehicle seat is unoccupied using the air conditioning ECU.

21. The method of claim 1, further comprising distributing negative pressure throughout a seat back of the vehicle seat and pulling air from the interior of the vehicle through a front face of the vehicle seat.

4. (canceled)

5. (canceled)

8. A control system including a seat ventilation system (SVS) and an air bag system, the control system comprising:

an occupant classification sensor that provides a weight signal in response to a force applied against a vehicle seat of a vehicle;

an air bag ECU that receives the weight signal and generates occupancy information based on the weight signal;

an air conditioning ECU that receives the occupancy information; and

a seat climate module that is controlled by the air conditioning ECU based on the occupancy information;

wherein the air conditioning ECU determines whether a user-initiated adjustment is made to an SVS setting and the air conditioning ECU ignores whether the vehicle seat is occupied for a preselected time period if a user-initiated adjustment is made to the SVS setting.

9. The control system of claim 8, wherein the seat climate module pulls air from an interior of the vehicle through the vehicle seat during operation.

10. The control system of claim 8 further comprising a seat climate control panel that provides occupant initiated control signals to the air conditioning ECU.

11. The control system of claim 10, wherein the air conditioning ECU determines whether the user-initiated adjustment is made to an SVS setting using the seat climate control panel.

13. The control system of claim 8, wherein the preselected time period is between one minute and 30 minutes.

14. The control system of claim 8, wherein the air conditioning deactivates the seat climate module after the preselected time period if the vehicle seat is unoccupied.

22. The control system of claim 8, wherein negative pressure is distributed by at least one air distributing channel throughout a seat back of the vehicle seat therein pulling air from the interior of the vehicle through a front face of the vehicle seat.

12. (canceled)

15. A method of providing seat ventilation using a seat ventilation system (SVS) within a vehicle, the method comprising:

determining whether a vehicle seat is occupied using an occupant classification sensor in electronic communication with an air bag ECU; and

providing occupancy information from the air bag ECU to an air conditioning ECU, the air conditioning ECU ignoring whether the vehicle seat is occupied for a preselected time period if a user-initiated adjustment is made to an SVS setting.

16. The method of claim 15, wherein the user-initiated adjustment to the SVS setting is made by an occupant using a seat climate control panel.

17. The method of claim 15, wherein the step of determining whether a vehicle seat is occupied includes providing a weight signal to the air bag ECU from the occupant classification sensor.

18. The method of claim 15 further comprising allowing a seat climate module to pull air from an interior of the vehicle through the vehicle seat if the vehicle seat is occupied.

19. The method of claim 15, wherein the preselected time period is between one minute and 30 minutes.

20. The method of claim 15 further comprising deactivating the seat climate module after the preselected time period if the vehicle seat is unoccupied using the air conditioning ECU.

23. The method of claim 15, further comprising distributing negative pressure throughout a seat back of a vehicle seat and pulling air from the interior of the vehicle through a front face of the vehicle seat.