System and methods for evaporative emissions leak detection based on a vehicle location

1. A method for detecting evaporative emissions system leaks of a vehicle, comprising:

via a controller onboard the vehicle with instructions stored in non-transitory memory:

receiving updated software modules and information through the internet, the updated modules stored in the non-transitory memory, and receiving a geographical location including jurisdiction borders via a GPS coupled to the vehicle, and cross-referencing information received from GPS to information from the internet to determine local weather conditions and local vehicle regulations;

adjusting a leak detection threshold stored in memory based on the vehicle geographical location including jurisdiction borders and the cross-referenced local vehicle regulations;

adjusting one or more leak detection test parameters based on the adjusted leak detection threshold; and

indicating a leak based on the adjusted leak detection threshold, the vehicle being a hybrid vehicle.

2. The method of claim 1 , further comprising:

determining a mandated leak detection threshold based on the vehicle geographical location including jurisdiction borders via a lookup table.

3. The method of claim 1 , where the one or more leak detection test parameters include an expected change in pressure in a sector of an evaporative emission system from a first instance to a second instance.

4. The method of claim 3 , where the sector of the evaporative emission system includes a fuel tank.

5. The method of claim 1 , where the one or more leak detection test parameters include a multiplier, the multiplier based on a ratio of the adjusted leak detection threshold to a reference orifice.

6. The method of claim 5 , where the reference orifice is coupled to an evaporative leak check module.

7. The method of claim 1 , where indicating a leak based on the adjusted leak detection threshold includes actuating a malfunction indicator lamp.

8. A method, comprising:

via a controller onboard the vehicle with instructions stored in non-transitory memory:

receiving information through the internet;

receiving a geographical location including jurisdiction borders via a GPS coupled to the vehicle;

determining a vehicle's location via the geographical information;

cross-referencing information received from GPS to information from the internet to determine local weather conditions and local vehicle regulations;

determining an evaporative emissions leak detection threshold for a jurisdiction comprising the vehicle's location based on the local vehicle regulations;

adjusting one or more leak detection test parameters based on the determined evaporative emissions leak detection threshold; and

running an evaporative emissions leak test using the determined evaporative emissions leak detection threshold and the adjusted test parameters.

9. The method of claim 8 , where the one or more leak detection test parameters include an expected change in pressure in a sector of an evaporative emission system from a beginning of a leak detection test to an end of the leak detection test.

10. The method of claim 8 , where running an evaporative emissions leak test using the determined evaporative emissions leak detection threshold further comprises applying a pressure or vacuum to a reference orifice.

11. The method of claim 8 , further comprising:

indicating a leak based on the determined evaporative emissions leak detection threshold.

12. A system for detecting evaporative emissions leaks in a vehicle, comprising:

a global positioning system;

an evaporative emissions testing subsystem configured to test for evaporative emissions leaks of at least two sizes; and

a controller configured to:

receive information through the internet;

receive a geographical location including jurisdiction borders via the GPS coupled to the vehicle;

cross-reference information received from the GPS to information from the internet to determine local weather conditions and local vehicle regulations;

determine the vehicle's geographical location via the global positioning system;

determine an evaporative emissions leak detection threshold for a jurisdiction comprising the vehicle's geographical location and the local vehicle regulations; and

run an evaporative emissions leak test using the determined evaporative emissions leak detection threshold.

13. The system of claim 12 , further comprising:

an evaporative leak check module configured to apply a pressure gradient to a sector of an evaporative emissions system of the vehicle.

14. The system of claim 13 , where the evaporative leak check module is further configured to apply a pressure gradient to a reference orifice.

15. The system of claim 14 , where the controller is further configured to adjust one or more leak detection test parameters based on the determined evaporative emissions leak detection threshold.

16. The system of claim 15 , where the one or more leak detection test parameters include a multiplier, the multiplier based on a ratio of the determined evaporative emissions leak detection threshold to the reference orifice.

17. The system of claim 12 , where the at least two sizes include 0.04″ and 0. 02″.