Ford Global Technolgoies, LLC

Garry Anthony Zawacki

Michiel Jacques Van Nieuwstadt

William Charles Ruona

Robert F Novak

Michael Hopka

Dave Charles Weber

Roberto Teran, Jr

Gopichandra Surnilla

Stephen B Smith

Furqan Zafar Shaikh

Christian Thomas Goralski, Jr

Jacobus Hendrik Visser

John Paul Bogema

Scott Donald Cooper

David K Chen

Timothy Webb

James Patrick O'Neill

Ed Kulik

David John Kubinski

David Charles Weber

Evangelos P Skoures

Vidhushekhar Vasant Zambare

Zaid Alnaqash

Methods and systems are provided for predicting response time of a particulate matter (PM) sensor and resetting the PM sensor upon completion of response time prediction, independent of actual or predicted soot load on PM sensor. Soot accumulation data collected during steady state vehicle operation may be fitted with a time-based polynomial function and sensor output and regeneration schedule may be estimated from the curve fit even if the overall signal is noisy.

Methods and systems for prediction of sensor response time

A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, particulate sensor degradation is indicated in response to an output of said particulate matter sensor staying below a threshold as engine temperature increases past the dewpoint temperature.

Method for evaluating degradation of a particulate matter sensor after an engine start

A method of operating an internal combustion engine having a reductant delivery and storage system in an emission control system, comprising of correlating a change in a monitored operating condition with a refill event to determine whether a reductant-diluting substance has been added to the reductant storage system; and limiting vehicle operation based on the correlation.

System and method for monitoring reductant quality

A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, an engine controller that activates a heater of an exhaust gas sensor after an output of a particulate matter sensor exceeds a threshold value after an engine is started.

System for an engine having a particulate matter sensor

A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, degradation of a particulate matter sensor is indicated after a temperature of a substrate of the particulate matter sensor exceeds a threshold temperature and an output of the particulate matter sensor is below a threshold value.

Method for evaluating degradation of a particulate matter sensor

An engine having a first and second bank of cylinders is disclosed. The engine may have improved fuel economy and emission as compared to other similar engines. In one example, engine cylinders may be deactivated.

Emission control device

A system and method for improving sensor performance of an on-board vehicle sensor, such as an exhaust gas sensor, while sensing a predetermined substance in a fluid flowing through a pipe include a structure for extending into the pipe and having at least one inlet for receiving fluid flowing through the pipe and at least one outlet generally opposite the at least one inlet, wherein the structure redirects substantially all fluid flowing from the at least one inlet to the sensor to provide a representative sample of the fluid to the sensor before returning the fluid through the at least one outlet.

System and method for improving performance of a fluid sensor for an internal combustion engine

Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.

Growing community of inventors

Livonia, MI, United States of America

Garry Anthony Zawacki