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| Number | Title | Issue Date |
| 8190348 | System and method for damping vibrations in a motor vehicle An engine damping system is disclosed. The engine damping system includes an actuating device that is hydraulically powered using a power steering system of a motor vehicle. The system also includes a steering position sensor to determine a steering mode of the moto... | 05/29/2012 |
| 8190349 | Control device of internal combustion engine A control device of an internal combustion engine includes: an air-fuel ratio modulator, performing modulation of an air-fuel ratio of an exhaust which flows in an exhaust purifier provided in an exhaust system of the internal combustion engine; a fluctuation detect... | 05/29/2012 |
| 8185295 | Multi-cylinder engine A multi-cylinder engine is configured to be able to perform a selected cylinder operation in which combustion is stopped in some cylinders. The multi-cylinder engine includes an ignition-timing adjustment section. This ignition-timing adjustment section retards igni... | 05/22/2012 |
| 8170777 | Indicating system and method for determining an engine parameter To reduce the complexity of an indicating system 6 on an internal combustion engine for determining a parameter, the invention provides that on the basis of the measured variable a computing unit 8 for the indicating system 6 computes crank angl... | 05/01/2012 |
| 8150603 | Engine control system having fuel-based timing A control system for an engine having a cylinder is disclosed having an engine valve movable to regulate a fluid flow of the cylinder and an actuator associated with the engine valve. The control system also has a sensor configured to generate a signal indicative of... | 04/03/2012 |
| 8150604 | Method and apparatus for reducing spark plug fouling A control module and method for controlling an engine operation includes a runtime module that determines a previous run period, a fuel mass module that determines a fuel mass during the previous run period, a spark fouling condition estimation module that determine... | 04/03/2012 |
| 8145412 | Internal combustion engine system, vehicle having the internal combustion engine system, and engine misfire detection method for internal combustion engine The internal combustion engine system makes detection on the occurrence or the non-occurrence of a misfire by comparing the 240-degree difference TD240 of the 30-degree rotation time T30 (CA) with the tentative detection reference value A1 and c... | 03/27/2012 |
| 8145411 | Ignition timing controlling apparatus and ignition timing controlling method for internal combustion engine An engine ECU executes a program including the steps of: calculating a knock magnitude N by dividing an integrated value lpkknk obtained by integrating the magnitude of vibration in the knock detection gate by BGL; controlling ignition timing according to a result o... | 03/27/2012 |
| 8145410 | Variable displacement engine operation with NVH management A system and method for controlling an internal combustion engine operable with a first cylinder firing frequency and a second cylinder firing frequency to reduce or eliminate transmission of torsional vibrations associated with the second cylinder firing frequency ... | 03/27/2012 |
| 8108132 | Component vibration based cylinder deactivation control system and method A method of changing an active cylinder count of an engine may include determining a vehicle vibration limit and a vehicle vibration level. The cylinder count may be modified (increased or decreased) based upon the vehicle vibration limit and the vehicle vibration l... | 01/31/2012 |
| 8103432 | Internal-combustion-engine control apparatus Knocking control is performed using a data group of serial segments each including a predetermined number of values obtained by A/D-converting a signal that appears within a knocking detection window and a data group consisting of serial segments each including the ... | 01/24/2012 |
| 8099230 | Method to enchance light load HCCI combustion control using measurement of cylinder pressures A method for controlling an amount of fuel reforming in an internal combustion engine configured to selectively operate in a homogeneous charge compression-ignition combustion mode with an exhaust recompression strategy includes monitoring in-cylinder pressures duri... | 01/17/2012 |
| 8099231 | System and method for detecting fuel injector malfunction based on engine vibration A control system for an engine includes an injection control module, a processing module, and a malfunction detection module. The injection control module commands a fuel injector to operate in a split injection mode. The processing module that measures engine vibra... | 01/17/2012 |
| 8095297 | Method and system for pre-ignition control Methods and systems are provided for addressing cylinder-to-cylinder imbalances in the incidence of pre-ignition and/or knock. Engine cylinders are fueled based on each cylinder's pre-ignition count to balance the incidence of pre-ignition in each cylinder. The fuel... | 01/10/2012 |
| 8073613 | Method and system for pre-ignition control Methods and systems are provided for mitigating engine pre-ignition based on a feed-forward likelihood of pre-ignition and feedback from a pre-ignition event. In response to an indication of pre-ignition, a cylinder may be enriched while an engine load is limited. T... | 12/06/2011 |
| 8046156 | Control apparatus of internal combustion engine This control apparatus estimates a full combustion correspondence period CP, which is the period from an ignition timing SA to a combustion completion time CAe, and controls a VVT advancement amount (burnt gas quantity, overlap period, intake valve open timing) such... | 10/25/2011 |
| 8046155 | Method and apparatus for misfire detection using engine cycles at least subsequent to actual misfire event In a method of monitoring for a misfire event in an internal combustion engine signals representative of engine speed are monitored for successive engine revolutions subsequent to each firing event. The monitored signals are stored (e.g., in a buffer) and processed ... | 10/25/2011 |
| 8041502 | Engine misfire detection apparatus for internal combustion engine and engine misfire detection method The engine misfire detection process according to one aspect of the invention first makes tentative detection on the occurrence or the non-occurrence of an engine misfire in execution of both vibration control and rotation speed control. In response to the tentative... | 10/18/2011 |
| 8032294 | Procedure and device for determining the composition of a fuel mixture The procedure and device of the present disclosure enable an accurate determination of the composition of the fuel mixture at a self-igniting combustion engine on the basis of present sensor signals. The procedure and device of the present disclosure furthermore ena... | 10/04/2011 |
| 8032293 | Method of controlling an internal combustion engine, in particular a diesel engine In a method for controlling an internal combustion engine, in particular a diesel internal combustion engine, at least one variable is formed on a cylinder-specific basis, which variable characterizes a respective profile of a combustion in an associated combustion ... | 10/04/2011 |
| 8027782 | Pattern recognition for random misfire A control system includes a jerk determination module and a misfire confirmation module. The jerk determination module determines a jerk of a crankshaft associated with a firing event in an engine. The misfire confirmation module selectively confirms that a misfire ... | 09/27/2011 |
| 8024107 | Ignition timing control system for internal combustion engine An ignition timing control system for an internal combustion engine, which is capable of ensuring both stability of control in a steady operating condition of the engine, and an excellent follow-up property of a controlled variable to a target value in a transient o... | 09/20/2011 |
| 8014933 | Method to determine a fuel composition The invention deals with a method to determine the fuel composition of a fuel mixture from a first fuel and a second fuel for the operation of an internal combustion engine, wherein the first and the second fuel have different octane numbers and wherein the internal... | 09/06/2011 |
| 8005607 | Device and method for controlling ignition timing of internal combustion engine An engine ECU executes a program that includes: calculating a median value and a standard deviation based on a calculated value based on the detected vibration of the engine; and subtracting a product of the standard deviation and a coefficient from the median value... | 08/23/2011 |
| 8000884 | Device and method for controlling ignition timing of internal combustion engine A device and associated method for controlling ignition timing of an internal combustion engine are provided. By comparing a determination value and knock magnitude, determination of knocking is made, and ignition timing is advanced or retarded. The device includes ... | 08/16/2011 |
| 7991541 | Method for improving the running smoothness of an internal combustion engine, control device and internal combustion engine In a method for improving the running smoothness of an internal combustion engine (1) which has at least one combustion chamber and at least one controllable actuator whose position has an influence on the combustion in the at least one combustion chamber, an... | 08/02/2011 |
| 7974769 | Integrated open and closed-loop control method for active engine mounts A system adapted for counteracting engine produced vibratory forces and isolating the forces from a body, includes active engine mounts, force or acceleration sensors, and a controller communicatively coupled to the mounts and sensors, and configured to execute an i... | 07/05/2011 |
| 7974768 | Device for controlling an internal combustion engine (EN) The invention concerns a device for controlling an internal combustion engine (601), comprising means (600) for generating a signal for controlling the internal combustion engine (601), a sensor (602) for supplying a pressure measure... | 07/05/2011 |
| 7945379 | Knock determination device and method for internal combustion engine An engine ECU executes a program including the steps of: calculating a coefficient of correlation K in accordance with a result of comparing a waveform of a vibration of a frequency band including a resonance frequency of an engine with a knock waveform model previo... | 05/17/2011 |
| 7941265 | Individual cylinder fuel mass correction factor for high drivability index (HIDI) fuel A system includes a fuel detection module, a misfire detection module, and a fuel control module. The fuel detection module detects when a fuel supplied to an engine having C cylinders has a high drivability index (HIDI), where C is an integer greater than 1. The mi... | 05/10/2011 |
| 7899607 | Open-loop control method for cancelling engine induced noise and vibration An open-loop control system that provides control signals to active engine mounts to reduce or eliminate the transfer of engine vibration to a vehicle body structure, where the system uses only a crank signal from the engine as an input. The control system includes ... | 03/01/2011 |
| 7899608 | Method and apparatus for detecting misfires and idenfifying causes A method of identifying misfires in an engine including: running the engine; measuring the pressure pulses from the exhaust; generating a waveform from the measured pulses; dividing the waveform into segments; associating each waveform segment with the cylinder whic... | 03/01/2011 |
| 7877191 | Method of adapting an internal combustion engine to the quality of the fuel used A process for controlling supplying fuel for an internal combustion engine, employed when the engine is started, including: measuring at least one characteristic value of an engine speed representative of a richness of a fuel/oxidant supply mixture for the engine, c... | 01/25/2011 |
| 7877192 | Control for an internal-combustion engine A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every... | 01/25/2011 |
| 7869931 | Engine controller When an engine torque trace is set during acceleration or deceleration, the ratio of increase or decrease in the engine torque per unit time is restricted so that when the engine torque generated during acceleration or deceleration approaches an engine torque (balan... | 01/11/2011 |
| 7856308 | Knock detection apparatus for internal combustion engine A knock detection apparatus for an internal combustion engine can accurately detect the occurrence of a knock without an influence of a noise component even if the noise component having the same frequency as a knock vibration superposes on an ionic current signal. ... | 12/21/2010 |
| 7853400 | Control apparatus for internal combustion engine A knock control apparatus includes: a knock sensor for detecting knock of an internal combustion engine; a signal processing section for calculating a knock intensity; and knock determination level setting sections: for calculating an average value of the knock inte... | 12/14/2010 |
| 7844389 | Dual injection type internal combustion engine A dual injection type internal combustion engine including an injector for in-cylinder injection and an injector for intake manifold injection includes a learning device for learning a background noise level based on an output signal of a knock sensor, and a knockin... | 11/30/2010 |
| 7831377 | Ignition timing control system and method for internal combustion engine and engine control unit An ignition timing control system for an internal combustion engine, which is capable of properly carrying out ignition timing control over a wide control range, thereby making it possible to improve fuel economy, and is capable of suppressing combustion fluctuation... | 11/09/2010 |
| 7831376 | Method and device for operating an internal combustion engine An internal combustion engine has a plurality of cylinders and an exhaust tract into which a mixture which is situated in the respective cylinder is introduced in the respective discharge strokes. A combustion misfire rate is determined as a function of at least one... | 11/09/2010 |
