FUEL VAPOR BLOCKING VALVE CONTROL

摘要

Methods and systems for controlling and reducing current consumption of a vapor blocking valve are disclosed. In one example, current supplied to the vapor blocking valve is adjusted proportionately to fuel tank pressure to compensate for fuel tank pressure acting on the vapor blocking valve. Vapor blocking valve current is adjusted to reduce current consumption.

主权项

1. A vapor blocking valve control method, comprising:
receiving sensor input to a controller; proportionately adjusting a vapor blocking valve holding current command for a closed vapor blocking valve based on a fuel tank pressure via the controller; and supplying current to a vapor blocking valve in response to the vapor blocking valve current command.