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| Number | Title | Issue Date |
| 7992542 | Multiple spark plug per cylinder engine with individual plug control A system and method for operating a multiple cylinder internal combustion engine having at least two spark plugs per cylinder include a first control wire coupled to a first spark plug of a first cylinder and a second spark plug of a second cylinder, and a second co... | 08/09/2011 |
| 7377260 | Method and device for controlling an internal combustion engine An internal combustion engine has a plurality of cylinders having combustion chambers and each being associated with a spark plug designed for igniting a mixture of air and fuel in the combustion chamber, and at least two adjusting devices for adjusting the air supp... | 05/27/2008 |
| 7305298 | Charge motion control valve fuzzy logic diagnostic A method of diagnosing a malfunction of a charge motion control valve coupled to an intake manifold of an internal combustion engine is provided. The method includes: commanding the valve to at least one of close and open; determining a pressure range using fuzzy lo... | 12/04/2007 |
| 7251571 | Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal In a first embodiment, the present invention is a method of detecting an open secondary winding, including the steps of enabling an integrator, resetting the integrator, detecting an ionization current, integrating the ionization current over a spark window, compari... | 07/31/2007 |
| 7212900 | Method of reducing resonance phenomena in a transmission train of a vehicle internal combustion engine A method of reducing resonance phenomena in a transmission train of an internal combustion engine of a vehicle; when the rotation speed of at least part of the transmission train is such that the frequency of a disturbance harmonic component of the drive torque lies... | 05/01/2007 |
| 7143753 | Air amount calculator for internal combustion engine An intake air base amount calculation unit respectively calculates a base air amount Gbase, an intake air temperature correction coefficient Ka and a pulsation correction coefficient Kb, and calculates an intake air base amount Gnb based on these. An internal EGR am... | 12/05/2006 |
| 7142972 | Continuous cylinder misfire detection method A method and system for detection of continuous single cylinder misfire, by more completely analyzing an estimated periodic sequence of reference period signals, and comparing the periodic sequence with a sample corresponding to an immediately prior revolution, is o... | 11/28/2006 |
| 7133766 | Engine combustion state detection device A rotation angle sensor detects the rotation speed of a crankshaft of an engine. An ECU extracts a first frequency component synchronized with combustion cycles of the engine that is contained in a rotation speed signal obtained by the detection of the rotation angl... | 11/07/2006 |
| 7113861 | System and method for diagnosing and calibrating internal combustion engines A method, system, and machine-readable storage medium for determining a predetermined operating condition of an internal combustion engine are disclosed. In operation, the method, system and machine-readable storage medium measure a cylinder pressure in at least one... | 09/26/2006 |
| 7104228 | Engine with variable cam timing and control advantageously using humidity sensor A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel econ... | 09/12/2006 |
| 7063079 | Device for reducing the part count and package size of an in-cylinder ionization detection system by integrating the ionization detection circuit and ignition coil driver into a single package Two embodiments of an integrated ionization detection circuit and ignition coil driver, an ASIC and a single electronic package, are disclosed. The apparatuses reduce the cost and complexity of an in-cylinder ionization detection system by combining like functionali... | 06/20/2006 |
| 7055372 | Method of detecting cylinder ID using in-cylinder ionization for spark detection following partial coil charging The present feature of the invention comprises a method and apparatus for determining cylinder ID. When a cylinder is compressed, the resistance increases across the spark plug gap. Thus, if a spark coil is only partially charged before activation of the spark, the ... | 06/06/2006 |
| 7051705 | Control system parameter monitor A control system parameter monitor determines a difference between a desired and estimated or measured parameter value, applies a weighting factor to the difference, and selects a control strategy based on the weighted difference. The weighting factor generally refl... | 05/30/2006 |
| 7048670 | Engine control method and device for a vehicle An engine speed control that avoid undesirable transmission conditions such as clutch chattering. This is done by sensing actual conditions, which are likely to result in the undesirable transmission conditions such as clutch chattering and only changing the engine ... | 05/23/2006 |
| 7047126 | Engine shut-down for engine having adjustable valve timing A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditi... | 05/16/2006 |
| 7025342 | Actuator drive control device for active vibration isolation support system, and method of using same In an actuator drive control device for an active vibration isolation support system, accumulated time of eight time intervals tn of crank pulses which are outputted at every 15 degrees of a crank angle in a vibration period corresponding to 120 degrees of the crank... | 04/11/2006 |
| 7021128 | Misfire detection using acoustic sensors A misfire detection system is provided including an internal combustion engine having a combustion chamber and an exhaust system in fluid communication with the combustion chamber. An acoustic sensor is associated with either the combustion chamber or the exhaust sy... | 04/04/2006 |
| 7011075 | Engine shut-down for engine having adjustable valve timing A method for discontinuing combustion in a cylinder of an internal combustion engine having an intake manifold and an emission control device coupled downstream of thereof, where the cylinder has at least one valve, the method comprising during a shut-down, holding ... | 03/14/2006 |
| 6968826 | Control system parameter monitor A system and method for monitoring a control system parameter determine a difference between a desired and estimated or measured parameter value, apply a weighting factor to the difference, and select a control strategy based on the weighted difference. The weightin... | 11/29/2005 |
| 6970780 | System and method for transitioning between engine device schedules based on engine operating condition A method and system are provided for controlling a device in an internal combustion engine such as a spark plug, a camshaft actuator, an EGR valve actuator, etc. The method and system are designed to compensate for changes in environmental operating conditions of th... | 11/29/2005 |
| 6845312 | Method for detecting engine knock A method for processing knock-related data reduces the memory locations required for the method and also simplify the processing steps needed to determine a sum, average, and threshold value relating to magnitudes of knock ratios. Inputs from either pressure sensor ... | 01/18/2005 |
| 6330874 | Method for the cylinder-selective knock control of an internal combustion engine The total ignition angle ZW(z) of each cylinder z is composed of cylinder-selective values basic ignition angle GZ(z) {determined by engine speed n and load L}, knock adjustment angle KNK(z), in addition to a first adaptation value AD1(z) and a second ada... | 12/18/2001 |
| 6170463 | Method and apparatus for optimizing engine operation A method and apparatus for optimizing desired operational characteristics of an engine having a positionable throttle and a plurality of cylinders wherein data representing the same gross amount of fuel to be injected into all of the cylinders at any give... | 01/09/2001 |
| 6123057 | Arrangement and process for communication between an ignition module and control unit in a combustion engine's ignition system An arrangement and a process for communication between an ignition module (ICM) mounted on an engine and a control unit (ECM). The ignition module includes detection circuits and signal processing stages in order to determine at least one combustion relat... | 09/26/2000 |
| 5941213 | Control system for internal combustion engines A control system for an internal combustion engine includes a heat flux sensor arranged in the combustion chamber of the engine, for detecting the heat flux within the combustion chamber. An ECU controls at least one of the amount of fuel supplied to the ... | 08/24/1999 |
| 5927252 | Ignition timing control apparatus for internal combustion engine An ignition timing control apparatus for an internal combustion engine is disclosed whereby ignition timing is set without incurring deviations from the desired ignition timing even under transient engine operating conditions. For each intake stroke of ea... | 07/27/1999 |
| 5287836 | Control system for internal combustion engines A control system for an internal combustion engine determines ignition timing of the engine and generates an ignition command signal to generate high voltage for discharging a spark plug provided for each cylinder of the engine. The control system detects... | 02/22/1994 |
| 5284116 | Vehicle management computer A method of and apparatus for starting and accelerating a vehicle through a range of vehicle speeds during which the vehicle internal combustion engine is operated in a plurality of different operating modes is disclosed. Different operating modes are ava... | 02/08/1994 |
| 5148791 | Method of electronic engine control for internal combustion engine having a plurality of cylinders A method of an electronic engine control for an internal combustion engine having a plurality of cylinders, wherein the very same air fuel ratio feed back coefficient obtained at a predetermined sequential timing which has been used for calculating the am... | 09/22/1992 |
| 5115778 | Apparatus for controlling an internal combustion engine An apparatus for controlling an internal combustion engine comprises a transducer which detects acoustic emissions generated by the operation of the engine, and produces an output signal. The output signal is amplified, rectified and enveloped to produce ... | 05/26/1992 |
| 5111405 | Engine control system In an engine control system of the type in which engine control data is calculated for each of a plurality of cylinders, rotation angular speeds of the crank shaft are sequentially detected as individual pistons of the plurality of cylinders take an ident... | 05/05/1992 |
| 5086741 | Method and apparatus for detecting and controlling combustion condition in an internal combustion engine A method of detecting the condition of combustion in each cylinder of an internal combustion engine while monitoring a variation in rotation of a crankshaft in the engine for each cylinder, in which the degree of irregular combustion is judged based on th... | 02/11/1992 |
| 5085192 | Internal combustion engine ignition system and cleaning device An apparatus for electrically controlling the spark advance of selected cylinders of a multicylinder engine so that the spark of the selected cylinders is advanced beyond others of the cylinders. For example, the selected cylinders may be advanced beyond ... | 02/04/1992 |
| 5054447 | Ignition timing control device and method for an internal combustion engine An ignition timing control device for a multicylinder engine comprises a position sensor which generates a crank angle reference position signal indicative of a first and a second reference position of respective cylinders, wherein the second reference po... | 10/08/1991 |
| 5016591 | System and method for controlling a combustion state in a multi-cylinder engine for a vehicle A system and method for controlling combustion state for an internal combustion engine during engine idling which measures the angular speed of the engine cylinders for a certain interval whenever a predetermined crank angle is reached, and detects a comb... | 05/21/1991 |
| 5001645 | Adaptive control system for an engine An adaptive control system is provided for an internal combustion engine having at least two control inputs which affect an engine output. The system involves establishing a first base value for a first control input as a function of engine operating cond... | 03/19/1991 |
| 4993371 | Internal combustion engine ignition system and cleaning device An apparatus for electrically controlling the spark advance of selected cylinders of a multicylinder engine so that the spark of the selected cylinders is advanced beyond others of the cylinders. For example, the selected cylinders may be advanced beyond ... | 02/19/1991 |
| 4960093 | Internal combustion engine ignition system and cleaning device An apparatus for electrically controlling the spark advance of selected cylinders of a multicylinder engine so that the spark of the selected cylinders is advanced beyond others of the cylinders. For example, the selected cylinders may be advanced normal ... | 10/02/1990 |
| 4893600 | Adaptive control for an internal combustion engine An adaptive control system and method is provided for a power producing engine having at least one control parameter which affects an engine output, where the engine has a drivetrain combination having at least one resonant frequency. A base value is esta... | 01/16/1990 |
| 4841933 | Adaptive control system for an internal combustion engine An adaptive control system and method for a multi-cylinder internal combustion engine is provided wherein a perturbation generator perturbs an engine control parameter of a cylinder about a base-line value, and a measuring means measures the slope of an e... | 06/27/1989 |
