Patents Assigned to FEV North America, Inc.
  • Patent number: 10480369
    Abstract: An exhaust after-treatment system is coupled to an exhaust pipe of a diesel internal combustion engine (ICE) for treating an exhaust gas. The exhaust after-treatment system includes a diesel oxidation catalyst (DOC) and a SCR coated diesel particulate filter (SDPF) serially disposed in a downstream path of the exhaust gas. An electrically heated catalyst (EHC) is coupled to the DOC and is configured to electrically heat the DOC for reducing the requisite time to reach a DOC light-off temperature. A controller is operably coupled with the DOC and the EHC and is configured to operate the EHC in response to a mid bed temperature of the DOC. More specifically, the controller is configured to supply power to the EHC when the DOC mid bed temperature is below a predetermined value and discontinue the power supply to the EHC when the DOC mid bed temperature is greater than the predetermined value.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 19, 2019
    Assignee: FEV NORTH AMERICA INC.
    Inventors: Mufaddel Dahodwala, Tamas Szailer, Satyum Joshi, Erik Koehler, Michael Franke
  • Patent number: 10371071
    Abstract: Systems and methods for non-intrusive closed-loop control of internal combustion engines are provided. Systems of the non-intrusive closed-loop control of internal combustion engines include a plurality of engine operating condition sensors, an electronic control unit with a Gaussian process model, and a look-up table. The electronic control unit estimates an MFB50 of the internal combustion engine using the Gaussian process model and with engine operating condition data as input. A desired MFB50 is obtained from the look-up table and a command of a control parameter to a fuel injector for the internal combustion engine is executed by the electronic control unit and as a function of the comparison of the estimated MFB50 and the desired MFB50.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 6, 2019
    Assignee: FEV North America, Inc.
    Inventors: Mufaddel Z. Dahodwala, Erik Koehler
  • Patent number: 10209347
    Abstract: Radar testing systems with radar system rotational systems and methods for using the radar testing systems are disclosed. A radar testing system includes a radar system to be tested, a computer, and a radar simulator. A radar sensor rotation system mechanically coupled to a radar sensor of the radar system is communicatively coupled to the computer and configured to rotate the radar sensor to predefined and desired angles for predetermined amounts of time during testing of the radar system.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: February 19, 2019
    Assignee: FEV NORTH AMERICA, INC.
    Inventors: Soumendu Chanda, Martin Pischinger
  • Patent number: 9940223
    Abstract: The human-machine interface test system enables the automated testing of vehicle interface systems and consumer electronics devices, replacing testing and validation that previously had required human interaction. The human-machine interface device (HMI test object or device under test) does not need to be altered (via hardware or software modifications or additions) to be able to be tested using the human-machine interface test system. The HMIts involves the automated audio input generation and output analysis, visual verification of a display screen with graphics and texts display, including touch and gesture interface control and feedback, external device interface, as well as data logging for communication between the HMI device and the rest of the system, that will replace the testing and validation that previously required human interaction.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: April 10, 2018
    Assignee: FEV North America Inc.
    Inventors: Stephan A. Tarnutzer, Edward J. Frank, Brian A. Fischer, Guy N. Kennerly, William Osipoff, Joseph W. Priskorn
  • Patent number: 9869262
    Abstract: A process and a system for preventing pre-ignition in an internal combustion engine (ICE). The process includes providing an ICE that has a combustion chamber and an exhaust. Also provided is a total hydro-carbon (THC) sensor in communication with the combustion chamber. The THC sensor senses a THC level of the combusted gas for a given combustion cycle i (THCi) of the ICE. In the event that THCi is greater than a reference THC level (THCref), a pre-ignition countermeasure prior to an immediate subsequent combustion cycle i+1 is executed. Furthermore, the executed pre-ignition countermeasure prevents pre-ignition from occurring in the immediate subsequent combustion cycle i+1 of the ICE.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: January 16, 2018
    Assignee: FEV North America, Inc.
    Inventors: Patrick Haenel, Henning Kleeberg, Dean Tomazic
  • Patent number: 9708953
    Abstract: Methods and apparatuses for monitoring an oxidation catalyst in a vehicle exhaust system include a diesel internal combustion engine with an exhaust system that has an EGR, a DOC/DPF downstream from the EGR, an SCR catalyst downstream of the DOC/DPF, a first NOx sensor located upstream of the DOC/DPF, and a second NOx sensor located downstream of the SCR catalyst. A monitoring cycle of the exhaust system during operation of the diesel ICE includes executing a DPF regeneration event, shutting off the EGR, terminating urea dosing to the SCR catalyst, emptying NH3 storage in the SCR catalyst, and intrusively maintaining the temperature of the DOC/DPF within a predetermined temperature range. Readings from the first NOx sensor and the second NOx sensor allow for a ratio between first NOx sensor readings and second NOx sensor readings, the ratio providing an indication as to whether or not the DOC/DPF is failing or operating properly.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: July 18, 2017
    Assignee: FEV North America, Inc.
    Inventors: Tamas Szailer, Harsha Nanjundaswamy, Joel Deussen, Dean Tomazic
  • Patent number: 9581099
    Abstract: An exhaust diagnostic system. The system includes a diesel engine having an exhaust system with a diesel particulate filter (DPF), a diesel oxidation catalyst (DOC), a selective catalytic reduction (SCR) catalyst, a first NOx sensor located upstream of the SCR catalyst and a second NOx sensor located downstream of the SCR catalyst. In addition, an engine control unit (ECU) is in electronic communication with the first NOx sensor and the second NOx sensor. An SCR coordinator can be included and be configured to execute a non-intrusive SCR deNOx efficiency test, an intrusive SCR/DOC deNOx efficiency test and an intrusive DOC non-methane hydrocarbon (NMHC) conversion efficiency test on the exhaust system. As a result of the conversion efficiency tests, a distinction can be made as to whether the SCR catalyst or DOC is failing.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: February 28, 2017
    Assignee: FEV North America, Inc.
    Inventors: Tamas Szailer, Harsha Nanjundaswamy, Joel Deussen, Dean Tomazic