US 12,234,784 B1
Methods and systems for verifying oxygen sensor connections
Rani Kiwan, West Bloomfield, MI (US); Chris Paul Glugla, Macomb, MI (US); and Michael Uhrich, Wixom, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Aug. 2, 2024, as Appl. No. 18/793,568.
Int. Cl. F02D 41/14 (2006.01); F02D 41/12 (2006.01); F02D 41/22 (2006.01)
CPC F02D 41/1495 (2013.01) [F02D 41/126 (2013.01); F02D 41/1443 (2013.01); F02D 41/1454 (2013.01); F02D 41/1475 (2013.01); F02D 41/222 (2013.01); F01N 2560/025 (2013.01); F01N 2560/14 (2013.01); F01N 2900/0408 (2013.01); F01N 2900/0416 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating an engine, the method comprising:
monitoring exhaust gases of a first group of cylinders of a first cylinder bank of the engine via a first oxygen sensor associated with the first group of cylinders;
monitoring exhaust gases of a second group of cylinders of the first cylinder bank via a second oxygen sensor associated with the second group of cylinders;
determining whether a miswiring of at least one of the first oxygen sensor and the second oxygen sensor has occurred in response to an output from the first oxygen sensor or an output from the second oxygen sensor;
switching association of the first oxygen sensor from the first group of cylinders to the second group of cylinders and switching association of the second oxygen sensor from the second group of cylinders to the first group of cylinders when the miswiring is determined to have occurred; and
injecting fuel to the engine in response to the output of the first oxygen sensor and the output of the second oxygen sensor with the switched associations.