Patents by Inventor Gurpreet Matharu

Gurpreet Matharu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for estimating diesel exhaust fluid volume
    Patent number: 11598240
    Abstract: Methods and systems are provided for estimation of a volume of liquid diesel exhaust fluid (DEF) contained within a DEF tank. In one example, a method for the estimation of the volume of liquid DEF in a DEF tank during DEF freezing conditions may include activating a heater contained within the DEF tank, and then switching estimation of the volume of liquid DEF via a first transfer function to estimation of the volume of liquid DEF via a second transfer function.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 7, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Thaddeus A Chmielewski, Gurpreet Matharu, Marcus Bengtsson, Carlos Armesto, Bret Alan Zimmerman, Jim Bromham
  • SYSTEMS AND METHODS FOR ESTIMATING DIESEL EXHAUST FLUID VOLUME
    Publication number: 20220316375
    Abstract: Methods and systems are provided for estimation of a volume of liquid diesel exhaust fluid (DEF) contained within a DEF tank. In one example, a method for the estimation of the volume of liquid DEF in a DEF tank during DEF freezing conditions may include activating a heater contained within the DEF tank, and then switching estimation of the volume of liquid DEF via a first transfer function to estimation of the volume of liquid DEF via a second transfer function.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 6, 2022
    Inventors: Thaddeus A Chmielewski, Gurpreet Matharu, Marcus Bengtsson, Carlos Armesto, Bret Alan Zimmerman, Jim Bromham