The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Jan. 23, 2023
Ford Global Technologies, Llc, Dearborn, MI (US);
Aed M. Dudar, Canton, MI (US);
Scott Alan Bohr, Novi, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for controlling a fuel vapor recovery system having first, second, and third canisters and a plurality of control valves includes (i) performing a leak test; (ii) in response to the pressure of the entirety of the fuel vapor recovery system increasing to less than a threshold value from a target vacuum pressure within a predetermined period after obtaining the target vacuum pressure during the leak test, outputting a signal indicating that the fuel vapor recovery system is not leaking; and (iii) in response to the pressure of the entirety of the fuel vapor recovery system increasing to greater than the threshold value from the target vacuum pressure within the predetermined period after obtaining the target vacuum pressure during the leak test, outputting a signal indicating that the fuel vapor recovery system is leaking.