Invention Grant
- Patent Title: Systems and methods for intelligent vehicle evaporative emissions diagnostics
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Application No.: US16134128Application Date: 2018-09-18
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Publication No.: US10718282B2Publication Date: 2020-07-21
- Inventor: Aed M. Dudar
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: McCoy Russell LLP
- Agent Geoffrey Brumbaugh
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D41/24 ; G06N5/04 ; G07C5/08 ; G06N20/00 ; F02D41/22 ; F02M25/08

Abstract:
Methods and systems are provided for cleaning a fuel vapor storage canister positioned in an evaporative emissions control system of a vehicle. In one example, a method comprises sealing a fuel system of the vehicle for descending an altitude change that is predicted in advance, and subsequent to the vehicle descending the altitude change, unsealing the fuel system to passively purge fuel vapors stored in the fuel vapor storage canister to a fuel tank of the vehicle. In this way, bleed through emissions from the fuel vapor storage canister may be reduced, and engine operation may be improved.
Public/Granted literature
- US20190017453A1 SYSTEMS AND METHODS FOR INTELLIGENT VEHICLE EVAPORATIVE EMISSIONS DIAGNOSTICS Public/Granted day:2019-01-17
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