Having A Digital Memory Addressed By An Engine Parameter Patents (Class 123/486)
  • Patent number: 10393625
    Abstract: A method for generating an allowed input data trajectory for a physical system to be tested or measured, including providing an input data trajectory in an input data space; determining an allowed operating range; and replacing at least one segment of the provided input data trajectory, which is outside of the allowed operating range, by a trajectory segment within the allowed operating range, in order to obtain the allowed input data trajectory.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: August 27, 2019
    Assignee: Robert Bosch GmbH
    Inventors: The Duy Nguyen-Tuong, Volker Imhof, Ernst Kloppenburg, Bastian Bischoff
  • Patent number: 10330034
    Abstract: A device for predicting an exhaust gas recirculation rate of an internal combustion engine, which comprises an inlet system and at least one exhaust gas recirculation valve, is described. The device comprises a sensor arranged in the inlet system for determining the composition of the gas, a sensor for determining the position of the exhaust gas recirculation valve, and an evaluation apparatus. The evaluation apparatus is configured to determine and output a prediction of the exhaust gas recirculation rate based on a corrected estimate of the exhaust gas recirculation rate, wherein the estimate is based on the position of the exhaust gas recirculation valve and is corrected based on the composition of the gas as determined using the sensor.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: June 25, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas Alan Brewbaker, Christian Winge Vigild, Daniel Roettger, Michiel J. Van Nieuwstadt
  • Patent number: 10190516
    Abstract: An engine includes an exhaust gas recirculation system with a high pressure exhaust gas recirculation loop and a low pressure exhaust gas recirculation loop, and an air charging system. A method of controlling the air charging system includes monitoring an actual exhaust gas recirculation rate, operating conditions of a compressor and turbine in the air charging system. A compressor flow is determined based on a target exhaust gas recirculation rate, a target intake manifold pressure and the actual exhaust gas recirculation rate. A power requested by the compressor is determined based on the compressor flow, the target intake manifold pressure, and the monitored operating conditions of the compressor. A power to be generated by the turbine is determined based upon the power requested by the compressor. A turbine flow is determined based upon the power to be generated by the turbine and the monitored operating conditions of the turbine.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: January 29, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ibrahim Haskara, Yue-Yun Wang
  • Patent number: 10174668
    Abstract: A method and a unit for operating or for the operation of a fuel metering system of an internal combustion engine, in particular in a motor vehicle, and it being provided, in particular, that at least one operating variable of the internal combustion engine is detected, a dynamic operating state of the internal combustion engine is detected based on the at least one detected operating variable, and a dynamic correction to the fuel metering system of the internal combustion engine is carried out for a detected dynamic operating state of the internal combustion engine, taking into account the efficiency of an NOx exhaust gas aftertreatment system.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 8, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Lars Engelfried, Michael Bachner, Rolf-Dieter Koch
  • Patent number: 10132227
    Abstract: Upon a valve rotation angle of a flow rate control valve exceeding a radiator-flow-path closed position during changing of the valve rotation angle of the flow rate control valve in an opening direction of a radiator flow path from a closed state of the radiator flow path, a cooling water starts to circulate through the radiator flow path, and an outlet water temperature or an inlet water temperature of an engine starts to drop. The radiator-flow-path closed position is learned as a valve rotation angle of the flow rate control valve immediately before the outlet water temperature or the inlet water temperature starts to drop during changing of the valve rotation angle of the flow rate control valve in the opening direction of the radiator flow path from the closed state of the radiator flow path.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: November 20, 2018
    Assignee: DENSO CORPORATION
    Inventors: Takeo Matsumoto, Daisuke Nakanishi
  • Patent number: 10107185
    Abstract: A boost-control valve in a turbocharger system can be configured to update a wastegate status. The wastegate can discharge exhaust gases from a turbine chamber in the turbocharger, for example based on a pressure detected in a compressor chamber of the turbocharger. In an example, a processor circuit can be coupled to an OEM ECU, and can receive a first control signal from an OEM ECU. The first control signal can include a PWM signal having a first frequency and a first duty cycle. The processor circuit can generate a second control signal for controlling the boost-control valve. The second control signal can have the same first duty cycle and a different second frequency. In an example, the different second frequency is greater than the first frequency. In an example, the second control signal includes a DC signal having a variable amplitude.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 23, 2018
    Assignee: Company23
    Inventors: Chad DeBaker, Ryan Mattson
  • Patent number: 9989947
    Abstract: Techniques for driving a plurality of inductive actuators are described herein. According to these techniques, a driver unit includes a clock terminal that receives an external clock signal used by an external control unit. The driver unit further includes a serial bus interface configured to communicate with the external control unit via a serial bus. The serial bus is configured to communicate both of trigger commands synchronized to the external clock signal that indicate to at least one of a plurality of programmable control circuits (PCUs) to generate drive signals in response to the trigger commands that are synchronized with the external clock signal and data associated with at least one of the plurality of PCUs and synchronized with the external clock signal, wherein the data is used by the at least one of the plurality of PCUs to generate the drive signals in response to the trigger commands.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: June 5, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Christian Schweikert, Juergen Schaefer
  • Patent number: 9976497
    Abstract: In an internal combustion engine an air-fuel ratio is switched between at least two target values without generating torque fluctuations, while a deterioration in fuel consumption performance and exhaust performance is suppressed. When a condition for switching a combustion mode from stoichiometric combustion to lean combustion and a condition that the amount of change in a target torque is less than or equal to a predetermined value are satisfied, a target EGR rate is increased towards an EGR limit prior to switching the target air-fuel ratio. The target air-fuel ratio is maintained at the stoichiometric air-fuel ratio until the target EGR rate reaches the EGR limit, and in response to the target EGR rate reaching the EGR limit, the target air-fuel ratio is changed towards a lean air-fuel ratio.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 22, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke Matsumoto, Noriyasu Adachi
  • Patent number: 9932918
    Abstract: An engine includes an exhaust gas recirculation system with a high pressure exhaust gas recirculation loop and a low pressure exhaust gas recirculation loop, and an air charging system. A method of controlling the air charging system includes monitoring an actual exhaust gas recirculation rate, operating conditions of a compressor and turbine in the air charging system. A compressor flow is determined based on a target exhaust gas recirculation rate, a target intake manifold pressure and the actual exhaust gas recirculation rate. A power requested by the compressor is determined based on the compressor flow, the target intake manifold pressure, and the monitored operating conditions of the compressor. A power to be generated by the turbine is determined based upon the power requested by the compressor. A turbine flow is determined based upon the power to be generated by the turbine and the monitored operating conditions of the turbine.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 3, 2018
    Assignee: GM Global Technology Operations, LLC
    Inventors: Ibrahim Haskara, Yue-Yun Wang
  • Patent number: 9764812
    Abstract: A method for setting an engine speed of an internal combustion engine in a marine propulsion system to an operator-selected engine speed includes predicting a position of a throttle valve of the engine that is needed to provide the operator-selected engine speed, and determining a feed forward signal that will move the throttle valve to the predicted position. After moving the throttle valve to the predicted position, the method next includes controlling the engine speed with a feedback controller so as to obtain the operator-selected engine speed. The feed forward signal is determined based on at least one of the following criteria: an operator-selected control mode of the marine propulsion system; and an external operating condition of the marine propulsion system. A system for setting the engine speed to the operator-selected engine speed is also described.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 19, 2017
    Assignee: Brunswick Corporation
    Inventors: Jason S. Arbuckle, William P. O'Brien, Thomas S. Kirchhoff, Matthew W. Snyder, Andrew J. Przybyl
  • Patent number: 9752513
    Abstract: Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 5, 2017
    Assignee: LightSail Energy, Inc.
    Inventors: Danielle A. Fong, Stephen E. Crane, Edwin P. Berlin, Jr.
  • Patent number: 9739215
    Abstract: A system and method for controlling an exhaust gas recirculation (EGR) system in a hybrid vehicle using an intrusive monitor include adjusting EGR flow through an EGR valve based on an average pressure difference between pressure measured from a manifold absolute pressure (MAP) sensor and inferred pressure determined from mass air flow (MAF) into an intake of an engine when engine speed, throttle and camshaft timing position change is below a corresponding threshold. The measured pressure and inferred pressure are determined when the EGR valve is in a closed position and an open position.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 22, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Douglas Raymond Martin, Richard Paul Taylor, Freeman Gates
  • Patent number: 9715471
    Abstract: A master bus device for a motor vehicle exchanges messages with slave bus devices via a vehicle communication bus of the motor vehicle. It is specified in the master bus device by an operating schedule which is stored in a memory of the master bus device which messages the master bus device exchanges with the slave bus devices. To utilize the vehicle communication bus more efficiently, the master bus device has a switch-over device which is designed to receive a control signal from a device-external transmitting device and, in dependence on the control signal, to switch from the memory with the operating schedule to a further memory with a maintenance schedule which differs from the operating schedule, so that the maintenance schedule is used after switching over, for exchanging messages.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 25, 2017
    Assignee: AUDI AG
    Inventor: Andre Hasse
  • Patent number: 9689335
    Abstract: A system and method for determining an engine mass air flow (MAF) for use in an engine air to fuel ratio (AFR) calculation to operate an engine includes monitoring engine operation, determining in the electronic controller a first estimation of engine MAF based on a regression model, determining in the electronic controller a second estimation of engine MAF based on a flow model, and selecting the first or second estimation of engine MAF based on an operating state of the engine. Each estimation can use various engine parameters interchangeably to provide a robust system against sensor failures.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: June 27, 2017
    Assignee: Caterpillar Inc.
    Inventor: Xinyu Ge
  • Patent number: 9683496
    Abstract: A control apparatus for an internal combustion engine that can be a four-cycle engine including cylinders into which fuel is directly injected, the control apparatus includes an electronic control unit. The electronic control unit is configured to execute a fuel injection and an ignition for the cylinder in an expansion stroke on a condition that a stop of the piston in any one of the cylinders at vicinity of a top dead center after a compression stroke is predicted when the electronic control unit is configured to stop the fuel injection and the ignition for the internal combustion engine upon fulfillment of a predetermined stop condition.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 20, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Susumu Kojima
  • Patent number: 9617948
    Abstract: Internal combustion engine optimization in which individual adjustment processes to be carried out to achieve optimal cooperation between the sensors, actuators, control device and internal combustion engine are started and carried out on the basis of the quality achieved for each of the individual adjustment processes in relation to one another, the ambient conditions of the internal combustion engine and the system states of the internal combustion engine in connection with a control program.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 11, 2017
    Assignee: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR
    Inventor: Sven Meyer
  • Patent number: 9542514
    Abstract: A method of identifying memory nodes includes reading a netlist of the design. For a sequential cell of the design, constraint arcs between constraint and related pins can be extracted. For each constraint arc, an original vector set including initialization waveforms can be generated. A plurality of simulations can be run using a plurality of vector sets to generate a plurality of node sets. Each simulation generates a corresponding node set that toggles based on waveforms provided by a corresponding vector set. Each vector set is derived from the original vector set. A final set of memory nodes for the sequential circuit cell can be calculated by subtracting one node set from another node set. In one embodiment, the method can further include pruning non-gate connected nodes from the final node set.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: January 10, 2017
    Assignee: Synopsys, Inc.
    Inventors: Srivathsan Krishna Mohan, Qing Zhang, Paul Frain
  • Patent number: 9175609
    Abstract: An internal combustion engine can be operated in response to a received first throttle control input in a first operating regime that includes delivering a first air-fuel mixture having a first air/fuel ratio to a combustion volume to deliver a first output power in a first output power range between zero and a transition output power level. The engine can be operated in response to a received second throttle control input in a second operating regime that includes delivering a second air/fuel ratio richer than the first air/fuel ratio to the combustion volume to deliver a second output power in a second output power range between the transition output power level and a maximum output power level.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 3, 2015
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael Hawkes
  • Patent number: 9062624
    Abstract: An injector for a fuel injection system comprising: input means for receiving drive signals from an injector drive circuit for controlling operation of the injector, and an ID chip wherein the injector further comprises an electronic latch means arranged to move between a first state in which the electronic latch means is arranged to be enabled such that the ID chip is in communication with the injector drive circuit via the input means, and a second state in which the electronic latch means is arranged to be disabled such that the ID chip is not in communication with the injector drive circuit via the input means wherein the electronic latch means is arranged to move from the first state to the second state upon receipt at the injector of a drive pulse signal from the injector drive circuit.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 23, 2015
    Assignee: Delphi International Operations Luxembourg S.A.R.L.
    Inventors: Michael Anthony Archer, Abdolreza Fallahi
  • Patent number: 9002621
    Abstract: In a method for individually correcting injection quantities and/or times (mf1, mf2, mf . . . ; ti1, ti2, ti . . . ) in particular for a ballistic operating range of a fuel injector (1, 2, . . . ), a quantity deviation of an actual injection quantity (mf1, mf2, mf . . . ) from a nominal injection quantity (mfnom) of the fuel injector (1, 2, . . . ) during operation of the fuel injector (1, 2, . . . ) is determined, and a typical injection characteristic (fup1, fup2, fup . . . ) of the fuel injector (1, 2, . . . ) is adapted to a nominal injection characteristic (fupnom) based on the quantity deviation. Furthermore, a controller, in particular an engine controller may implement the above method.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: April 7, 2015
    Assignee: Continental Automotive GmbH
    Inventor: Christian Hauser
  • Patent number: 8996280
    Abstract: In a method for operating a fuel injector, a transition range of the characteristics curve of the injector is detected individually and adapted continuously, so that a monotonous characteristics curve is formed, with whose aid high metering precision of the injector is achieved.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: March 31, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
  • Patent number: 8965668
    Abstract: A master/slave arrangement of an electronic engine control device with an engine identification module. The electronic engine control device controls and regulates the internal combustion machine. The engine identification module includes at least one microprocessor and a memory building block for storing an engine identification as well as engine specifics. The electronic engine control device and the engine identification module exchange data through an engine cable harness. The engine identification module is arranged inseparably at the crank housing of the internal combustion machine. The engine identification module can be removed from the crank housing as well as from the engine cable harness only by being destroyed.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: February 24, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Albrecht Debelak, Andreas Schneider, Michael Wölki
  • Publication number: 20140278006
    Abstract: A method is provided for operating a vehicular engine that comprises a plurality of pistons and a plurality of cylinders. The method comprises detecting an engine temperature and detecting an alcohol concentration of fuel. The method further comprises selecting an amount of fuel according to the engine temperature and the alcohol concentration and selectively dispensing the amount of fuel to the cylinders.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Stanley D. Lent, Joshua D. VanLandingham
  • Patent number: 8789514
    Abstract: A method for controlling an automotive internal combustion engine having direct fuel injection is described, with the method comprising a fuel adaption part in which a fuel quality parameter (F) is determined using a first fuel quality parameter determination procedure when the engine exhibits predetermined operation conditions and a control part which uses the value of the fuel quality parameter (F) or of a fuel combustion characteristics parameter derived from the fuel quality parameter (F) as a target value (?T) in a closed-loop control of the start of injection (SOI) at the engine, with the closed-loop control using a second fuel quality parameter determination procedure being different from the first fuel quality parameter determination procedure to determine an actual value (?A) of the fuel quality parameter (F) or of the fuel combustion characteristics parameter derived from the fuel quality parameter (F).
    Type: Grant
    Filed: May 25, 2009
    Date of Patent: July 29, 2014
    Assignees: Continental Automotive GmbH, Renault SAS
    Inventors: Gianluca Caretta, Pascal Emery, Marcos Navarro
  • Patent number: 8725390
    Abstract: Systems and methods for optimizing fuel injection in an internal combustion engine adjust start of fuel injection by calculating whether one of advancing or retarding start of fuel injection will provide a shortest path from a source angle to a destination angle. Based on the source angle and a given injection pulse width and angle increment, it is determined whether fuel injection will overlap with a specified engine event if start of fuel injection is moved in a direction of the shortest path. A control circuit increments start fuel injection in the direction of the shortest path if it is determined that fuel injection will not overlap with the specified engine event, or increments start fuel injection in a direction opposite that of the shortest path if it is determined that fuel injection will overlap with the specified engine event.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: May 13, 2014
    Assignee: Brunswick Corporation
    Inventors: Matthew W. Snyder, Thomas S. Kirchhoff, David G. Camp
  • Patent number: 8649960
    Abstract: In a method for reading and/or storing injector-specific data for controlling an injection system of an internal combustion engine, an injector is charged by a control unit according to a predeterminable voltage curve and, depending on the case, is discharged directly by the control unit or by a power element located on a data storage medium and the voltage is measured by the control unit and by the data storage medium. Dependent upon a predeterminable voltage curve, a predeterminable amount of data is stored or read on a memory unit of the data storage medium.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: February 11, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Georg Bachmaier, Dominik Bergmann, Bernhard Fischer, Johann Görzen, Frank Herold, Stefan Lehmann, Thomas Schmid, Christian Tump
  • Patent number: 8566004
    Abstract: An alcohol concentration sensor detects an alcohol concentration in fuel that is supplied to an internal combustion engine. A fuel injection quantity is controlled in accordance with a detection value of the alcohol concentration that is detected by the alcohol concentration sensor. When a temperature of the fuel, which is detected by a fuel temperature sensor or estimated from intake air temperature etc., is equal to or lower than a predetermined limit temperature, the detection value of the alcohol concentration, which is detected by the alcohol concentration sensor, is memorized as a memorized value of the alcohol concentration. When the temperature of the fuel is higher than the predetermined limit temperature, the fuel injection quantity is controlled by using the memorized value of the alcohol concentration instead of using the detection value, which is currently detected by the alcohol concentration sensor.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: October 22, 2013
    Assignee: Denso Corporation
    Inventor: Toshiki Annoura
  • Patent number: 8463528
    Abstract: The present application provides a system and method for determining a secondary fuel amount for an engine. The method comprises measuring an injector signal from an engine's Engine Control Unit (ECU) for a primary injector. A delay time of the primary injector can be determined using a lookup table. An open time can be calculated based on the delay time and the primary timing value. An amount of fuel to be injected into the engine can be calculated based on the primary injector open time. An amount of secondary fuel equivalent to the amount of primary fuel can be determined. A timing value for a secondary injector signal for the secondary injector can be calculated to deliver the amount of secondary fuel to the engine.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: June 11, 2013
    Inventor: Chris M. Cologna
  • Patent number: 8452522
    Abstract: A control method and a control device of an engine are introduced. During the process of the engine controlling, the control unit does the adaptive learning for the actual target value of the feedback of different aims, and following the dynamic spectrogram generation strategy optimizing compares the adaptively learning parameter of the same working status and the same time with the basic spectrogram parameter. If the compared result doesn't meet the condition, then keep the basic spectrogram parameter. And if it meets the condition, then the engine generates the dynamic spectrogram parameter. Based on the dynamic spectrogram combination strategy, the engine combines the basic spectrogram parameter and the dynamic spectrogram parameter generated to the combined spectrogram parameter instead of the basic spectrogram parameter.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: May 28, 2013
    Assignee: Shan Dong Shenpu Automobile Control Technology Co., Ltd.
    Inventors: Xiaoqun Gao, Chunyong Gong, Hua Zhao
  • Patent number: 8306723
    Abstract: A direct-injection, compression-ignition internal combustion engine control adapts nominal minimum pulsewidth parameters controlling the fuel injectors to minimize pilot fuel delivered to the cylinders required to initiate a preliminary combustion event.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: November 6, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Ibrahim Haskara, Yue-Yun Wang, Chol-Bum M Kweon, Zhiping Liu, Frederic Anton Matekunas, Paul Anthony Battiston
  • Patent number: 8306725
    Abstract: Provided is directed to reduce unnecessary fuel consumption due to unnecessary rapid acceleration when a vehicle drives between intersections, and it is an object to allow for economical driving by reducing the fuel cost, and minimize environmental pollution by minimizing the exhaust gas of vehicle, by providing an economical speed for drivers such that vehicles that have passed through an intersection in accordance with the present traffic light economically drives to the next intersection.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 6, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myunghee Son, Haesook Jeon
  • Patent number: 8276566
    Abstract: A method for operating a fuel injection system of a motor vehicle in particular is described. The fuel injection system has a fuel accumulator, capable of receiving fuel via a metering unit. In the method, an actual pressure in the fuel accumulator is affected by an I regulator, among other things. A precontrol value is generated by a precontrol characteristic map, which is used for compensating manufacturing-related differences in the components of the fuel injection system.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: October 2, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Peter Horstmann, Stefan Keller
  • Patent number: 8160767
    Abstract: An analysis tool which extracts all the available parameter identifications (i.e. PIDS) from a vehicle's power train control module for diagnostic decisions. This is done by checking these PIDS and other information (e.g., calculated PIDS, Break Points, charts and algorithms) in three states; key on engine off, key on engine cranking, key on engine running. In all three modes the tool is comparing the live data from PIDS and voltage to the other information (e.g, Break Points). If any of this data are outside the programmed values a flag is assigned to the failure or control problem. The relationship between a particular PID and its associated preprogrammed value(s) may be indicated by a light. The depth of the problem (if any) is conveyed by the color of the light. Also included are tests/charts for fuel trim, engine volumetric efficiency, simulated injector, power, catalyst efficiency, and engine coolant range.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: April 17, 2012
    Inventors: Bernie C. Thompson, Neal R. Pederson
  • Patent number: 8126633
    Abstract: A method for operating an internal combustion engine is provided and at least a first map of prefixed first values is predetermined, each prefixed first value being a function of a prefixed nominal fuel quantity (Qecu—prefix). The method includes, but is not limited to the steps of determining a nominal fuel quantity (Qecu) for one injection, calculating an actual, torque forming, injected fuel quantity of the injection (QUEGO) and calculating at least one first parameter (Qdelta) which is related to the actual, torque forming, injected fuel quantity of the injection (QUEGO). After that, the nominal fuel quantity (Qecu) is modified according to the value of the at least one first parameter (Qdelta) so as to obtain a corrected fuel quantity (QecuCorr) that corresponds to the actual fuel quantity injected during the injection.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: February 28, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Tommaso De Fazio, Giovanni Rovatti
  • Patent number: 8116963
    Abstract: According to various embodiments of the invention, a map of injection pin profiles is experimentally determined at various locations spanning an engine operating plane. Injector pin profiles at points within the continuum spanned by the experimentally determined profiles are determined by interpolating between surrounding experimentally determined injector pin profiles. Various methods are used to adjust the interpolation procedure in cases where one injector pin profile has more or fewer points than the other injector pin profile.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 14, 2012
    Assignee: Transonic Combustion, Inc.
    Inventor: Eric D. Plambeck
  • Publication number: 20110303194
    Abstract: A system for improving the performance of a combustion engine comprising a system control unit is disclosed. The system control unit comprises an input module, a transform module and a control module all interconnected to each other. The input module obtains a first set of combustion parameters of the engine through at least one sensor. The transform module transforms the first set of combustion parameters into a second set of combustion parameters. The control module controls fuel injection of the engine based on the second set of combustion parameters, and controls oxyhydrogen production and injection based on the second set of combustion parameters. The controlled fuel injection and the controlled oxyhydrogen production and injection contribute to an improved performance of said engine during combustion. A method of improving the performance of a combustion engine and a method of injecting oxyhydrogen into a combustion engine are also disclosed.
    Type: Application
    Filed: February 1, 2011
    Publication date: December 15, 2011
    Applicant: HANDSOME VIVA INVESTMENTS LIMITED
    Inventors: Sze Chun FONG, Chi Long Daniel LAM
  • Patent number: 8000880
    Abstract: An engine control system comprises a fuel quality calculation module and a fueling module. The fuel quality calculation module calculates a fuel quality value for fuel provided to an engine based on at least one operating parameter of the engine. The fueling module selectively increases an amount of fuel provided to the engine based on the fuel quality value.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 16, 2011
    Inventors: Jonathan T. Shibata, Kenneth J. Buslepp, Donovan L. Dibble, Mary Beth Furness
  • Patent number: 7991537
    Abstract: A method for adjusting a lookup table that includes preset on-time values for an injector of an engine linked to fuel injection quantity values (?). The following steps are executed in a situation when the output shaft of the engine is disconnected from the output shaft of the gearbox. A torque loss value (Tloss) and a combustion efficiency value (?F) are determined or received. An actual fuel injection quantity value (?actual) is calculated, based on the torque loss value and the combustion efficiency value. An on-time value (tg) linked to the actual fuel injection quantity value is determined from the lookup table and the on-time value is compared with a presently applied on-time value (tb) that is established by an engine control with the aid of a regulator and the lookup table. The lookup table is adjusted based on the result of the comparison.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: August 2, 2011
    Assignee: Scania CV AB
    Inventors: Roger Hälleberg, Klas Telborn
  • Publication number: 20110132332
    Abstract: A method for controlling an automotive internal combustion engine (1) having direct fuel injection is described, with the method comprising a fuel adaption part in which a fuel quality parameter (F) is determined using a first fuel quality parameter determination procedure when the engine exhibits predetermined operation conditions and a control part which uses the value of the fuel quality parameter (F) or of a fuel combustion characteristics parameter derived from the fuel quality parameter (F) as a target value (?T) in a closed-loop control of the start of injection (SOI) at the engine (1), with the closed-loop control using a second fuel quality parameter determination procedure being different from the first fuel quality parameter determination procedure to determine an actual value (?A) of the fuel quality parameter (F) or of the fuel combustion characteristics parameter derived from the fuel quality parameter (F).
    Type: Application
    Filed: May 25, 2009
    Publication date: June 9, 2011
    Applicants: CONTINENTAL AUTOMOTIVE GMBH, RENAULT S.A.S.
    Inventors: Gianluca Caretta, Pascal Emery, Marcos Navarro
  • Publication number: 20110126807
    Abstract: A method for operating a fuel injection system of a motor vehicle in particular is described. The fuel injection system has a fuel accumulator, capable of receiving fuel via a metering unit. In the method, an actual pressure in the fuel accumulator is affected by an I regulator, among other things. A precontrol value is generated by a precontrol characteristic map, which is used for compensating manufacturing-related differences in the components of the fuel injection system.
    Type: Application
    Filed: August 18, 2005
    Publication date: June 2, 2011
    Inventors: Peter Horstmann, Stefan Keller
  • Publication number: 20110120417
    Abstract: In a method and a device for controlling the fuel pressure in the pressure accumulator of a common-rail injection system, the difference between the actual engine speed and a target engine speed is established, and an injection time is determined based on the determined difference. The fuel pressure is controlled according to the determined injection time.
    Type: Application
    Filed: June 25, 2009
    Publication date: May 26, 2011
    Inventors: Uwe Jung, Janos Radeczky, Michael Wirkowski
  • Publication number: 20110098907
    Abstract: In a vehicle in which an output of an engine is transmitted to a driving wheel through a transmission, an engine control device stops fuel injection of the engine, when engine rotational speed is above a preset specific fuel cut-off rotational speed while the vehicle is coasting; and restarts the fuel injection, when the engine rotational speed falls below a recovery rotational speed while the fuel injection is stopped, wherein the recovery rotational speed is below the specific fuel cut-off rotational speed. When determining that an operating state allows the stop and restart of fuel injection to be repeated, the engine control device sets a hunting-preventing fuel cut-off rotational speed based on an input shaft rotational speed of the transmission, wherein the hunting-preventing fuel cut-off rotational speed replaces the specific fuel cut-off rotational speed.
    Type: Application
    Filed: April 28, 2009
    Publication date: April 28, 2011
    Inventors: Ryouichi Ootaki, Masahiro Iriyama
  • Patent number: 7917333
    Abstract: A method for providing a virtual sensor network based system. The method may include obtaining project data descriptive of a virtual sensor network to be used in a control system of a machine; establishing a virtual sensor network including a plurality of virtual sensors based on the project data. Each virtual sensor may have a model type, at least one input parameter, and at least one output parameter. The method may also include recording model information, measurement data, and performance information of the virtual sensor network including the plurality of virtual sensors; creating one or more calibration certificates of the virtual sensor network including a plurality of virtual sensors based on the model information, the measurement data, and the performance information; and generating a documentation package associated with the virtual sensor network.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 29, 2011
    Assignee: Caterpillar Inc.
    Inventors: Anthony J. Grichnik, Mary L. Kesse, Amit Jayachandran, James Mason, Tim Felty, Christopher L. Wynkoop
  • Patent number: 7908858
    Abstract: A turbocharger control system is disclosed. The control system may have an engine and a fuel system configured to regulate fuel flow into the engine. The control system may further have an air induction system configured to regulate air flow into the engine and a sensor situated to sense a speed value of the air induction system. The controller may also have a controller configured to receive the speed value and regulate fuel flow into the engine as a function of the speed value.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Caterpillar Inc.
    Inventors: Christopher Ronald Gehrke, James Harris Mutti, Jr.
  • Patent number: 7904234
    Abstract: A method for determining fuel volatility and consequently performing cold starting of an internal combustion engine; in the event of cold starting, the method provides for the determination of an enrichment percentage as a function of a stored value for fuel volatility; the determination of a predicted value for starting quality before performing starting; the starting of the engine using the previously determined enrichment percentage; the determination of a measured value for starting quality; the determination of a correction value of the stored value for fuel volatility as a function of the comparison between the measured value for starting quality and the predicted value for starting quality; and the updating of the stored value for fuel volatility by applying the correction value to said stored value, so consequently modifying the amount of enrichment in force.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 8, 2011
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Renzo Ruggiano, Henri Mazet, Anna Zambelli, Raffaele Farina
  • Publication number: 20110017176
    Abstract: An abnormality diagnosing system for an internal combustion engine including a first fuel injection valve that injects fuel into a cylinder, and a second fuel injection valve that injects fuel into an intake passage is provided which has a control device controls an injection pattern of the first fuel injection valve and the second fuel injection valve. The control device stores engine operating conditions when an abnormality occurs in the engine, and make a return-to-normal determination as to whether the engine returns to a normal operating state when similar operation conditions that are the same as or within predetermined ranges of the stored operating conditions are established. The injection pattern is selected from patterns in which the fuel is injected solely from the first fuel injection valve, solely from the second fuel injection valve, and from both of the first and second fuel injection valves.
    Type: Application
    Filed: June 24, 2010
    Publication date: January 27, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mizuno, Naoya Okubo
  • Patent number: 7865293
    Abstract: A fuel injection control device (ECU) for controlling injection supply of fuel to a target engine includes a program for sequentially sensing fuel pressure fluctuating with injection of a predetermined injector of each cylinder of a multi-cylinder engine based on an output of a fuel pressure sensor, a program for detecting a diagram as a profile of a transition of a fuel quantity injected from the injector per unit time (i.e., an injection rate) at a present time based on the sequentially sensed fuel pressure transition, and a program for varying an injection command to the injector based on the diagram that is the profile of the injection rate transition and that is detected by the latter program and a predetermined basic diagram such that the diagram as the actual profile of the injection rate transition belongs to the basic diagram.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: January 4, 2011
    Assignee: Denso Corporation
    Inventors: Koji Ishizuka, Kenichiro Nakata
  • Publication number: 20100288238
    Abstract: In a method or a device for forming an electric control signal for an injection impulse of a position-controlled fuel injector, particularly of a common-rail or pump-nozzle injection system, he course of the electric control signal can be selected freely in regard to the pulse edges (injection rate changes Q), the holding period (?t) and the injection rate (Q). This offers the advantage that the combustion process can be better optimized with respect to low emissions, low consumption and for meeting tightened legal regulations.
    Type: Application
    Filed: June 26, 2008
    Publication date: November 18, 2010
    Inventors: Jörg Beilharz, Uwe Lingener, Andreas Pfeifer, Richard Pirkl, Harald Schmidt, Klaus Wenzlawski, Hans-Jörg Wiehoff
  • Patent number: 7814888
    Abstract: A method for operating an internal combustion engine having a fuel system which feeds fuel at a given pressure to a metering valve provides that a controller defines the opening time and the closing time of the metering valve and correspondingly actuates the metering valve so that the metering valve opens and closes at the defined times. In order to permit precise metering of fuel even in high-speed internal combustion engines there is provision for the controller to define at least one of the times for the opening or closing of the metering valve while taking into account the counterpressure actually prevailing at the outlet opening of the metering valve.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 19, 2010
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Heiko Roβkamp, Georg Maier, Tim Gegg, Wolfgang Layher, Arno Kinnen, Christine Hallé
  • Patent number: 7809491
    Abstract: A control scheme is disclosed for performing both an adaption routine and carbon canister purging. In adaption, parameters for estimating air-fuel ratio from flow sensors and actuators are adjusted against an air-fuel ratio under closed-loop control using an EGO sensor. The two processes cannot run simultaneously. In vehicles in which the engine is operating from the time of key on until key off, the adaption occurs shortly after starting and then periodically thereafter. In vehicles in which the engine is turned on and off frequently such as with HEVs, the adaption routine may be run every time the engine is turned on, which is more frequent than necessary and doesn't allow enough time for purging. According to the disclosed control scheme, the time since last adaption and time in adaption is saved when the engine is turned off so that the adaption routine is conducted only when needed.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 5, 2010
    Assignee: Ford Global Technologies, LLC
    Inventors: David Michael Bevan, Kenneth James Miller, Douglas Raymond Martin, David Allen Clemens