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

摘要

A method for detecting evaporative emissions system leaks, comprising: adjusting a leak detection threshold based on a vehicle geographical location including jurisdiction borders; and indicating a leak based on the adjusted threshold. In this way, a vehicle may perform OBD EVAP leak tests in accordance with local regulations. This method allows for a single PCM to be installed in all vehicles of a certain model during manufacturing regardless of the jurisdiction where the vehicle will be sold, thereby reducing part complexity and simplifying the manufacturing process.

主权项

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