Ford Global Technolgoies, LLC

Cory Hendrickson

Michiel Jacques Van Nieuwstadt

Devesh Upadhyay

Michael Hopka

Christine Kay Lambert

Scott Donald Cooper

Thomas Alan Brewbaker

Nicholas Girardi

Methods and systems are provided for probabilistic on-board diagnostics. In one example, a method may include calculating a probabilistic metric for a sample of a measured operating condition of a vehicle system component, averaging a plurality of probabilistic metrics including the probabilistic metric for a plurality of samples including the sample, and determining whether the vehicle system component is degraded based on the averaged plurality of probabilistic metrics. In this way, the functionality of a vehicle system component may be continuously monitored without regard for specific diagnostic entry conditions.

Systems and methods for probabilistic on-board diagnostics

Methods and systems are provided for regenerating an exhaust particulate filter based on a projected vehicle drive cycle and catalyst ammonia storage level. In one example, a method may include scheduling a PF regeneration during a regeneration window to maintain a threshold ammonia level in an exhaust catalyst, at the end of the drive cycle.

Systems and methods for particulate filter regeneration

Methods and systems for organizing vehicles within a vehicle platoon are described. In one example, temperatures and storage amounts of emissions control devices in vehicles of the vehicle platoon provide a basis for determining which vehicle is a leader and which vehicles are followers in a vehicle platoon. Vehicles having emissions devices at low temperatures may be commanded to a lead position to maintain emissions control device performance.

System and method for platooning vehicles

Methods and systems are provided for SCR devices cascaded along an exhaust passage. In one example, a method may include adjusting a reductant injection pressure based on a temperature of one or more of the SCR devices.

Exhaust system

A method for an exhaust system is provided, comprising adjusting reductant injection responsive to a reductant concentration, the reductant concentration based on concentration sensor readings and vehicle motion. If the reductant freezes, the reductant may stratify, leading to inaccurate concentration sensor readings. Vehicle motion may mix the reductant, thereby ensuring an accurate concentration measurement which may then be used to adjust reductant injection.

Systems and methods for managing diesel exhaust fluid stratification

Methods and systems are provided for opportunistic regeneration of a diesel particulate filter based on cloud based traffic information and navigation information. In one example, a method may include determining initiation of regeneration, termination of regeneration and a degree of regeneration based on information from a lead vehicular network and navigation information in order to reduce a regeneration fuel penalty.

Systems and methods for opportunistic diesel particulate filter regeneration

Methods are provided for determining an exhaust fluid level in an exhaust fluid storage tank based on a signal, and a quality of the signal from an exhaust fluid level sensor located in the exhaust fluid tank of a vehicle.

Filtering method for intermittent ultrasonic level sensors

Methods and systems are provided for modeling a reductant temperature and storage distribution of a SCR catalyst axially and radially. In one example, a method may include modeling an expected distribution of stored reductant among a plurality of axial zones and a plurality of radial zones of an SCR catalyst arranged in an engine exhaust passage and comparing the expected distribution with a reductant storage setpoint of each zone to adjust radial and axial storage locations.

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Ann Arbor, MI, United States of America

Cory Hendrickson