US 12,486,948 B2
System and method for detecting hydrogen tank fill operation in a fuel cell electric vehicle
Ross Dykstra Pursifull, Dearborn, MI (US); and Tobias Klaus Emig, Gelsenkirchen (DE)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Sep. 22, 2023, as Appl. No. 18/472,812.
Prior Publication US 2025/0102111 A1, Mar. 27, 2025
Int. Cl. F17C 5/00 (2006.01)
CPC F17C 5/007 (2013.01) [F17C 2205/0326 (2013.01); F17C 2221/012 (2013.01); F17C 2250/032 (2013.01); F17C 2250/0434 (2013.01); F17C 2250/0439 (2013.01); F17C 2250/07 (2013.01); F17C 2270/0184 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fuel system for a fuel cell electric vehicle (FCEV), comprising:
a fuel delivery system fluidly coupled to a fuel tank, including:
a fuel line defining an inlet and adapted to extend between the inlet and the fuel tank to transport fuel, and
one or more sensors configured to provide data indicative of a characteristic of the fuel, the one or more sensors include:
a first pressure sensor configured to detect a pressure at a first portion of the fuel line, and
a second pressure sensor configured to detect a pressure at a second portion of the fuel line, wherein the second pressure sensor is provided closer to the inlet than the first pressure sensor; and
a controller configured to control the fuel delivery system for a fill operation in response to detecting a characteristic differential between the inlet and the fuel tank based on the data indicating occurrence of the fill operation, wherein the controller is configured to detect a pressure differential as the characteristic differential responsive to the pressure at the second portion of the fuel line being greater than the pressure at the first portion of the fuel line.