Patents Assigned to Detroit Diesel Corporation
  • Internal combustion engine with NOadsorber
    Patent number: 6934622
    Abstract: An internal combustion engine includes first and second exhaust paths, and a first NOx adsorber located in the first exhaust path. A flow control valve controls the relative amounts of exhaust gas flowing through the first and second exhaust paths. A first injector injects a reductant into the exhaust gas stream. The injector is located so as to inject the reductant at a location adjacent to the flow control valve to cause mixing of the reductant and the exhaust gas and to allow regeneration of the first NOx adsorber.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: August 23, 2005
    Assignee: Detroit Diesel Corporation
    Inventor: Kevin Dean Sisken
  • Method for responding to sensor failures on EGR/VGT engines
    Patent number: 6925804
    Abstract: A method for controlling an internal combustion engine having a variable geometry turbocharger (VGT) and an exhaust gas recirculation (EGR) system in the face of sensor failures and mechanical faults includes generating accurate substitute values for use by the engine control logic when EGR and VGT system-related sensors are diagnosed as having failed during operation, and maintaining controlled performance of the VGT system in the face of sensor failures or mechanical faults associated with the EGR or VGT system.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: August 9, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: John E. Longnecker, Richard M. Avery, Jr., Leopold Super
  • System and method for determining a parameter set for an engine controller module
    Patent number: 6925375
    Abstract: A method of determining an engine controller module (ECM) parameter set, the method includes specifying at least one criteria, determining whether at least one existing parameter set matches the specified criteria, presenting a report that indicates at least one matching parameter set when there is at least one matching parameter set, and presenting an alert when there is no matching parameter set, wherein the method is implemented via an ECM vendor extranet on a World Wide Web server.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: August 2, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Curtis Paul Ritter, Jeffery Scott Hawkins, James Edward Zuccaro, Victor James Meloche, Karen Elizabeth Weber
  • Internal combustion engine with NOx adsorber
    Publication number: 20050160721
    Abstract: An internal combustion engine includes first and second exhaust paths, and a first NOx adsorber located in the first exhaust path. A flow control valve controls the relative amounts of exhaust gas flowing through the first and second exhaust paths. A first injector injects a reductant into the exhaust gas stream. The injector is located so as to inject the reductant at a location adjacent to the flow control valve to cause mixing of the reductant and the exhaust gas and to allow regeneration of the first NOx adsorber.
    Type: Application
    Filed: March 23, 2005
    Publication date: July 28, 2005
    Applicant: Detroit Diesel Corporation
    Inventor: Kevin Sisken
  • Method and system for indirectly estimating ambient air temperature
    Patent number: 6920386
    Abstract: A method and system for indirectly estimating ambient air temperature. The ambient air temperature is estimated based on filtering a temperature input from a turbocharger air inlet sensor. The filtering includes compensating for engine compartment temperature variations which vary relative to the actual ambient temperature.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: July 19, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Leopold Super, Richard M. Avery, Jr., John E. Longnecker
  • Separate oil gallery for piston cooling with electronic oil flow control
    Publication number: 20050120982
    Abstract: An engine oil distribution system for an internal combustion engine includes a main gallery and a separate oil gallery for piston cooling nozzles. The separate gallery may be controlled by a control valve that regulates the oil flow. The oil flow to the separate gallery may be controlled by an electronic control module in accordance with the piston cooling needs, for example, varied as a function of the load applied to the engine, or as a function of engine temperature. Preferably, engine temperature is sensed by coolant fluid temperature, or directly measured metal temperature, correlated to the thermal state of the piston.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Applicant: Detroit Diesel Corporation
    Inventor: Dan Ducu
  • Heater system for diesel engines having a selective catalytic reduction system
    Patent number: 6901748
    Abstract: A diesel engine (10) having a selective catalytic reduction system with a urea tank (12). A heater element (26) is mounted in the urea tank and another heating element (34) is mounted in the engine (10) for cold weather starts. Both heating elements (24) and (26) are connected to a common cord (18) which has at its distal end a common electrical plug (16) for plugging into an electrical receptacle.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: June 7, 2005
    Assignee: Detroit Diesel Corporation
    Inventor: Ted Gene Gomulka
  • Method of estimating engine cooling fan power losses
    Patent number: 6904352
    Abstract: A method for estimating engine torque loss due to a fan. A table of maximum fan torque losses is compiled at a plurality of engine speeds. An engine control unit (ECU) is configured with the table of maximum fan torque losses. A first maximum fan torque loss and a second maximum fan torque loss for an engine speed are retrieved from the table. A maximum fan torque loss for the engine speed is estimated by interpolating between the first maximum fan torque loss and the second maximum fan torque loss. An engine torque loss estimate is calculated by adjusting the maximum fan torque loss based on a set of predetermined fan characteristics.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: June 7, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Jeffery S. Hawkins, Richard M. Avery, Jr., Leopold Super
  • Overspeed shut down test for electronically controlled engine
    Patent number: 6898512
    Abstract: A method of testing a shut down system for an electronically controlled diesel engine including the steps of changing the primary or main rating to a test rating that runs at reduced nominal horsepower and at speeds higher than the overspeed trigger point to actuate the shut down system during the test.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: May 24, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Curtis P. Ritter, Jeffrey A. Strauss
  • Internal combustion engine with NOx adsorber
    Publication number: 20050091967
    Abstract: An internal combustion engine includes first and second exhaust paths, and a first NOx adsorber located in the first exhaust path. A flow control valve controls the relative amounts of exhaust gas flowing through the first and second exhaust paths. A first injector injects a reductant into the exhaust gas stream. The injector is located so as to inject the reductant at a location adjacent to the flow control valve to cause mixing of the reductant and the exhaust gas and to allow regeneration of the first NOx adsorber.
    Type: Application
    Filed: November 4, 2003
    Publication date: May 5, 2005
    Applicant: Detroit Diesel Corporation
    Inventor: Kevin Sisken
  • Method for controlling condensate formation in an engine system
    Patent number: 6886336
    Abstract: A method for controlling condensation in an engine. A set of signals indicative of an intake manifold temperature, intake manifold pressure, intake air temperature, intake air humidity, engine speed, and exhaust gas mask flow rate is provided. A critical value that indicates that condensation could occur is calculated. The critical value is compared to a predetermined threshold value or range. An exhaust gas recirculation valve is closed if the critical value exceeds the predetermined threshold value or range. The exhaust gas recirculation valve is opened if the predetermined threshold value or range is not exceeded.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: May 3, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Leopold Super, Richard Michael Avery, Jr., John Edward Longnecker
  • Compact dual leg NOx absorber catalyst device and system and method of using the same
    Patent number: 6883311
    Abstract: An apparatus, a system, and a method for treating exhaust gases from an internal combustion engine. The system and method employing the use of a catalytic device coaxial-arranged dual leg apparatus comprising a housing having a first flow path and a second flow path having coaxially arranged portions, a device for selectively directing the exhaust gases between the first flow path and the second flow path, and a first NOx adsorbing catalyst contained in the first flow path.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: April 26, 2005
    Assignee: Detroit Diesel Corporation
    Inventor: Yi Liu
  • Method of controlling an internal combustion engine
    Patent number: 6883318
    Abstract: A method of controlling an internal combustion engine when the engine is operating in an engine braking mode is provided. The engine operates in the engine braking mode and an exhaust valve for the cylinder is prematurely opened to dissipate power. The method includes controlling airflow to at least one cylinder based on a comparison of a desired mass airflow rate and an actual mass airflow rate such that the actual mass airflow rate tracks the desired mass airflow rate.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: April 26, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Oliver A. Warner, Mark A. Zurawski, Andrew May
  • System and method for controlling fan activation based on intake manifold air temperature and time in an EGR system
    Patent number: 6880497
    Abstract: A method for controlling at least one engine cooling fan for a compression ignition internal combustion engine, the method includes turning on the at least one cooling fan when an intake manifold air temperature is equal to or greater than a predetermined turn-on threshold temperature for a predetermined turn-on time, and turning off the at least one cooling fan when the intake manifold air temperature is equal to or less than a predetermined turn-off threshold temperature for a predetermined turn-off time, wherein the predetermined turn-on threshold temperature is greater than the predetermined turn-off threshold temperature.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: April 19, 2005
    Assignee: Detroit Diesel Corporation
    Inventors: Richard Michael Avery, Jr., Leopold Super
  • METHOD FOR CONTROLLING CONDENSATE FORMATION IN AN ENGINE SYSTEM
    Publication number: 20050066659
    Abstract: A method for controlling condensation in an engine. A set of signals indicative of an intake manifold temperature, intake manifold pressure, intake air temperature, intake air humidity, engine speed, and exhaust gas mask flow rate is provided. A critical value that indicates that condensation could occur is calculated. The critical value is compared to a predetermined threshold value or range. An exhaust gas recirculation valve is closed if the critical value exceeds the predetermined threshold value or range. The exhaust gas recirculation valve is opened if the predetermined threshold value or range is not exceeded.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Applicant: Detroit Diesel Corporation
    Inventors: Leopold Super, Richard Avery, John Longnecker
  • METHOD FOR RESPONDING TO SENSOR FAILURES ON EGR/VGT ENGINES
    Publication number: 20050066658
    Abstract: A method for controlling an internal combustion engine having a variable geometry turbocharger (VGT) and an exhaust gas recirculation (EGR) system in the face of sensor failures and mechanical faults includes generating accurate substitute values for use by the engine control logic when EGR and VGT system-related sensors are diagnosed as having failed during operation, and maintaining controlled performance of the VGT system in the face of sensor failures or mechanical faults associated with the EGR or VGT system.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Applicant: Detroit Diesel Corporation
    Inventors: John Longnecker, Richard Avery, Leopold Super
  • SYSTEM AND METHOD FOR CONTROLLING FAN ACTIVATION BASED ON INTAKE MANIFOLD AIR TEMPERATURE AND TIME IN AN EGR SYSTEM
    Publication number: 20050066914
    Abstract: A method for controlling at least one engine cooling fan for a compression ignition internal combustion, the method includes turning on the at least one cooling fan when an intake manifold air temperature is equal to or greater than a predetermined turn-on threshold temperature for a predetermined turn-on time, and turning off the at least one cooling fan when the intake manifold air temperature is equal to or less than a predetermined turn-off threshold temperature for a predetermined turn-off time, wherein the predetermined turn-on threshold temperature is greater than the predetermined turn-off threshold temperature.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 31, 2005
    Applicant: DETROIT DIESEL CORPORATION
    Inventors: Richard Avery, Leopold Super
  • Method of estimating engine cooling fan power losses
    Publication number: 20050066715
    Abstract: A method for estimating engine torque loss due to a fan. A table of maximum fan torque losses is compiled at a plurality of engine speeds. An engine control unit (ECU) is configured with the table of maximum fan torque losses. A first maximum fan torque loss and a second maximum fan torque loss for an engine speed are retrieved from the table. A maximum fan torque loss for the engine speed is estimated by interpolating between the first maximum fan torque loss and the second maximum fan torque loss. An engine torque loss estimate is calculated by adjusting the maximum fan torque loss based on a set of predetermined fan characteristics.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Applicant: Detroit Diesel Corporation
    Inventors: Jeffery Hawkins, Richard Avery, Leopold Super
  • Charged air intake system for an internal combustion engine
    Patent number: 6868840
    Abstract: A charge air intake system for a diesel engine (10) includes a first duct (24) and second bypass duct (30) having its upstream and downstream ends connected to the first duct and bypassing a charge air cooler (28) mounted in line with the first duct (24). An EGR conduit (38) leads from the exhaust manifold to the bypass duct (30). A turbo charger furnished charged air to the ducts where a proportioning valve (26) proportions air between the charge air cooler and the bypass duct.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: March 22, 2005
    Assignee: Detroit Diesel Corporation
    Inventor: Brian Andrew Lewallen
  • Turbocharged internal combustion engine with EGR flow
    Publication number: 20050056017
    Abstract: A turbocharged internal combustion engine is operated such that the intake manifold pressure generally exceeds the exhaust manifold pressure. A low pressure turbocharger and a high pressure turbocharger are provided in series. An exhaust gas recirculation (EGR) system passively routes a portion of the exhaust gases to the high pressure turbocharger compressor inlet.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 17, 2005
    Applicant: Detroit Diesel Corporation
    Inventors: Kevin Sisken, Brian Bolton