Invention Grant
- Patent Title: Purge pump control systems and methods
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Application No.: US15251534Application Date: 2016-08-30
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Publication No.: US10267247B2Publication Date: 2019-04-23
- Inventor: Martino Casetti , Darrell W. Burleigh , Ping Ge
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D41/14 ; F02M25/08

Abstract:
A fuel vapor control system for a vehicle includes a fuel vapor canister that traps fuel vapor from a fuel tank of the vehicle. A purge valve opens to allow fuel vapor flow to an intake system of an engine and closes to prevent fuel vapor flow to the intake system of the engine. An electrical pump pumps fuel vapor from the fuel vapor canister to the purge valve. A vent valve allows fresh air flow to the vapor canister when the vent valve is open and prevents fresh air flow to the vapor canister when the vent valve is closed. A purge control module controls a speed of the electrical pump, opening of the purge valve, and opening of the vent valve.
Public/Granted literature
- US20170152798A1 Purge Pump Control Systems And Methods Public/Granted day:2017-06-01
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