Invention Grant
- Patent Title: Purge pressure sensor offset and diagnostic systems and methods
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Application No.: US15251844Application Date: 2016-08-30
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Publication No.: US10344715B2Publication Date: 2019-07-09
- Inventor: Martino Casetti , Darrell W. Burleigh , Bruce A. Church
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detriot
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detriot
- Main IPC: F02M25/08
- IPC: F02M25/08 ; F02D41/22 ; F02D41/00 ; F02D41/04

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 pressure sensor measures a pressure within a conduit at a location between the electrical pump and the purge valve. A purge control module, based on the pressure measured using the pressure sensor at the location between the electrical pump and the purge valve, controls at least one of a speed of the electrical pump and opening of the purge valve.
Public/Granted literature
- US20170152814A1 Purge Pressure Sensor Offset And Diagnostic Systems And Methods Public/Granted day:2017-06-01
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