Patents by Inventor Astha Kukreja

Astha Kukreja 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).

  • System and method for determining reductant delivery performance
    Patent number: 11286827
    Abstract: A system has a pump and an injector coupled to the pump. The system further comprises a controller coupled to the pump and the injector. The controller is structured to: determine a change of reductant flow relative to a change of pump rate of the pump; and generate a status command indicative of at least one of an under-restricted injector or an over-restricted injector in response to the determination of the change of reductant flow relative to the change of pump rate of the pump.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: March 29, 2022
    Assignee: Cummins Inc.
    Inventors: Bharath Sundar, Apurva Arvind Chunodkar, Michael Haas, Astha Kukreja
  • SYSTEM AND METHOD FOR DETERMINING REDUCTANT DELIVERY PERFORMANCE
    Publication number: 20200340381
    Abstract: A system has a pump and an injector coupled to the pump. The system further comprises a controller coupled to the pump and the injector. The controller is structured to: determine a change of reductant flow relative to a change of pump rate of the pump; and generate a status command indicative of at least one of an under-restricted injector or an over-restricted injector in response to the determination of the change of reductant flow relative to the change of pump rate of the pump.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: Cummins Inc.
    Inventors: Bharath Sundar, Apurva Arvind Chunodkar, Michael Haas, Astha Kukreja
  • System and method for determining reductant delivery performance
    Patent number: 10711676
    Abstract: An apparatus includes a pump, a delivery mechanism in fluid communication with the pump, and a controller communicatively coupled to the pump and the delivery mechanism. The controller is structured to interpret, via a pump diagnostic circuit, first and second pump parameters indicative of first and second pump rates, interpret, via a dosing diagnostic circuit, first and second dosing parameters indicative of at least one of (i) first and second reductant flows or (ii) first and second injector characteristics, determine, via a delivery diagnostic circuit, a delivery status based, at least in part, on the interpretation of the first and second pump parameters and the first and second dosing parameters, and generate, via the delivery diagnostic circuit, a status command indicative at least one of an under-restricted delivery mechanism or an over-restricted delivery mechanism in response to the determination of the delivery status.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 14, 2020
    Assignee: Cummins, Inc.
    Inventors: Bharath Sundar, Apurva Arvind Chunodkar, Michael Haas, Astha Kukreja
  • SYSTEM AND METHOD FOR DETERMINING REDUCTANT DELIVERY PERFORMANCE
    Publication number: 20190003362
    Abstract: An apparatus includes a pump, a delivery mechanism in fluid communication with the pump, and a controller communicatively coupled to the pump and the delivery mechanism. The controller is structured to interpret, via a pump diagnostic circuit, first and second pump parameters indicative of first and second pump rates, interpret, via a dosing diagnostic circuit, first and second dosing parameters indicative of at least one of (i) first and second reductant flows or (ii) first and second injector characteristics, determine, via a delivery diagnostic circuit, a delivery status based, at least in part, on the interpretation of the first and second pump parameters and the first and second dosing parameters, and generate, via the delivery diagnostic circuit, a status command indicative at least one of an under-restricted delivery mechanism or an over-restricted delivery mechanism in response to the determination of the delivery status.
    Type: Application
    Filed: January 12, 2017
    Publication date: January 3, 2019
    Applicant: Cummins, Inc.
    Inventors: Bharath Sundar, Apurva Arvind Chunodkar, Michael Haas, Astha Kukreja