Patents by Inventor Karolin ERWE

Karolin ERWE 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).

  • Method and system for monitoring of a physical quantity related to a particulate mass in at least one exhaust pipe
    Patent number: 10519841
    Abstract: Methods and systems are provided to monitor a quantity relating to particulate mass M in at least one exhaust pipe arranged downstream of a combustion engine. A first determination device determines a reduction ? of a pressure difference dP over at least one or several particulate filters, arranged downstream of the combustion engine. This reduction ? is related to a pressure difference dPref over one or more corresponding reference particulate filters. A second determination device determines a quantity related to the particulate mass M, based on the determined reduction ? of the pressure difference dP and a predetermined correlation between the reduction ? and the quantity related to the particulate mass M, so that use of soot sensors in the exhaust pipe may be avoided. A comparison device compares the quantity with a defined threshold value Mth and a providing device provides indications related to the comparison.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: December 31, 2019
    Assignee: Scania CV AB
    Inventors: Björn Bökelund, Karolin Erwe
  • METHOD AND SYSTEM FOR MONITORING OF A PHYSICAL QUANTITY RELATED TO A PARTICULATE MASS IN AT LEAST ONE EXHAUST PIPE
    Publication number: 20170030245
    Abstract: Methods and systems are provided to monitor a quantity relating to particulate mass M in at least one exhaust pipe arranged downstream of a combustion engine. A first determination device determines a reduction ? of a pressure difference dP over at least one or several particulate filters, arranged downstream of the combustion engine. This reduction ? is related to a pressure difference dPref over one or more corresponding reference particulate filters. A second determination device determines a quantity related to the particulate mass M, based on the determined reduction ? of the pressure difference dP and a predetermined correlation between the reduction ? and the quantity related to the particulate mass M, so that use of soot sensors in the exhaust pipe may be avoided. A comparison device compares the quantity with a defined threshold value Mth and a providing device provides indications related to the comparison.
    Type: Application
    Filed: May 6, 2015
    Publication date: February 2, 2017
    Applicant: SCANIA CV AB
    Inventors: Björn BÖKELUND, Karolin ERWE