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| Number | Title | Issue Date |
| 7475672 | Inductive ignition control system An apparatus for producing an ignition spark in an internal combustion engine. The apparatus comprises an inductive ignition device having a primary coil and a secondary coil, flow of current through the primary coil being controlled by an electronic switching eleme... | 01/13/2009 |
| 7370634 | Internal combustion engine spark timing control system A method for controlling spark timing in an internal combustion engine. The method includes determining, in response to a knock sensor mounted to the engine, a spark offset to the scheduled spark timing for the engine at relatively low engine speed which is applied ... | 05/13/2008 |
| 7267105 | Optically triggered electronic distributor for an internal combustion engine A distributor for an internal combustion engine and associated methods comprise a camshaft having a drive gear thereon, a trigger disk positioned on the camshaft so as to rotate coaxially therewith, the trigger disk having a plurality of tabs defining a window betwe... | 09/11/2007 |
| 7236875 | System and method for controlling an engine in a vehicle A system and method for controlling an engine in a vehicle to facilitate heat transfer to a passenger compartment is provided. A number of conditions are examined, and if it is found that one or more of these conditions matches a corresponding predetermined conditio... | 06/26/2007 |
| 7216627 | Internal combustion engine provided with double system of fuel injection An internal combustion engine includes an engine control unit for setting a ratio of fuel injection quantity of both the injectors. The engine control unit includes a memory storing four sheets of ignition timing maps, with reference to which the maximum torque gene... | 05/15/2007 |
| 7171949 | Ignition timing controller for internal combustion engine A crank angle sensor outputs a crank angle signal pulse every when a crankshaft rotates a predetermined crank angle. A time period sufficient for rotating a crankshaft between adjacent crank angle signal pulses is measured. The time period is referred to as a rotati... | 02/06/2007 |
| 7171942 | Protective engine speed control for a centrifugal clutch A device that controls the engine speed of an internal combustion engine of a hand-held power tool has a protective control unit. The engine has an ignition control unit for controlling the ignition timing relative to a crank angle of a crankshaft based on the crank... | 02/06/2007 |
| 7165542 | High energy ignition method and system using pre-dwell control A system and method of managing the energy stored in a single ignition coil of a distributor inductive ignition for an engine. The engine comprises a plurality of cylinders and the ignition coil has a primary coil current. The ignition coil has a stored energy and a... | 01/23/2007 |
| 7133764 | Method for determining the angle-of-rotation position of a shaft A method for determining the angle-of-rotation position of a shaft of an internal combustion engine, particularly of a crankshaft, information regarding at least incremental angles of rotation of the shaft and run times for each incremental angle of rotation being r... | 11/07/2006 |
| 7107965 | Controlling spark of an engine with adjustable intake valve timing A system and method to control spark timing of an engine wherein the injection timing of the engine is varied relative to a crankshaft position depending on engine operating conditions. According to the method, spark timing is varied as fuel injection timing varies ... | 09/19/2006 |
| 7100572 | Fuel injection system and fuel injecting method for internal combustion engine A fuel injection system and method for injecting fuel for an internal combustion engine having fuel injection valves arranged on the upstream side and downstream side from the throttle valve respectively which consistently supplies an adequate quantity of fuel into ... | 09/05/2006 |
| 7062373 | Misfire detection apparatus of internal combustion engine A misfire detection apparatus of an internal combustion engine. The misfire detection apparatus includes an angle sensor for detecting rotation angle of the internal combustion engine, an ECU for performing fuel injection and ignition control based on rotation infor... | 06/13/2006 |
| 7059300 | Ignition control apparatus for internal combustion engine An ignition control apparatus for an internal combustion engine for preventing ignition control upon occurrence of rotation reversal of the engine includes a rotation sensor (3) disposed in opposition to projections (11, 12) of a rotor (1), and ... | 06/13/2006 |
| 7058537 | Method and device for detecting a rotational speed comprising an estimation of a measured value at low rotational speeds An apparatus and a method with which a more-precise indication of an rpm is possible even if a position signal continues to be absent. To that end, a counter state of a counter is evaluated and is set to zero at each position signal. If the expected position signal ... | 06/06/2006 |
| 7047127 | Method and device for determining the initial angle position of an internal combustion engine A method and device in which teeth or gaps of a pickup wheel passing a crankshaft sensor are counted constantly, i.e. even when the internal combustion engine is switched off and the stored number of teeth is used to determine the initial angle position of the inter... | 05/16/2006 |
| 7040282 | Independent timing retard for engine speed limiting A method and system for operating an engine wherein ignition of the engine is activated according to a predetermined timing schedule that references engine speed, and the ignition is suppressed above a predetermined engine speed threshold to allow engine speed to fa... | 05/09/2006 |
| 7036470 | Four-cycle engine An engine has an engine body having an outer surface that defines an outer area next thereto. An air intake system has an intake valve movable between a closed position and an open position. An intake camshaft that actuates the intake valve extends through the engin... | 05/02/2006 |
| 7021259 | Variable valve control apparatus and method in internal combustion engine In an internal combustion engine, which is provided with a variable valve mechanism that varies an open/close characteristic of an intake valve, a target open/close characteristic of the intake valve is determined. Simultaneously, a control speed at a time when the ... | 04/04/2006 |
| 6973901 | Variable valve control apparatus and method in internal combustion engine In an internal combustion engine provided with a variable valve mechanism that varies an open/close characteristic of an intake valve, a target open/close characteristic of the intake valve is determined and at the same time, a control speed of when the intake valve... | 12/13/2005 |
| 6966299 | Start control device and start control method for internal combustion engine An electronic control unit adjusts an electronic throttle valve to a starting opening in a cold start mode of an engine, then maintains the opening of the electronic throttle valve so that an engine rotational speed detected by a crank angle sensor increases to a ta... | 11/22/2005 |
| 6932057 | Engine control device To permit reliable occurrence of initial combustion at the start of an engine during which a stroke is not determined by only a crank pulse and to increase an engine speed. During a period from when cranking is started until a stroke is detected, fuel is inje... | 08/23/2005 |
| 6932740 | Method for controlling ignition of an internal combustion engine A method for controlling the ignition of an internal combustion engine (10) for a motor vehicle. More specifically, the method controls the timing of ignition for each of cylinder of the internal combustion engine (10). Control of the timing is based o... | 08/23/2005 |
| 6918803 | Outboard motor An outboard motor in which a location on a hull of a throttle operating unit (81) such as a throttle lever and a location on the hull of an outboard motor main body accommodating therein an engine are positioned away from each other on the hull and in which a... | 07/19/2005 |
| 6830033 | Method for phase recognition in an internal combustion engine A method for phase recognition of an internal combustion engine with a plurality of cylinders is preformed in an operating region of the engine having selected operating conditions. A crankshaft sensor serves to determine the angular position of the crankshaft. A co... | 12/14/2004 |
| 6820602 | High energy ignition method and system A system and method of managing the energy stored in a single ignition coil of a distributor inductive ignition for an engine is described. The engine comprises a plurality of cylinders and the ignition coil having dwell control parameters. The engine is operated at... | 11/23/2004 |
| 6752134 | Ignition arrangement An improved electronic ignition arrangement for an internal combustion engine having an output drive shaft, a rotary shaft drivingly coupled to the output drive shaft, a plurality of spark plugs, an ignition coil, and a rotor and distributor arrangement to effect se... | 06/22/2004 |
| 6742502 | Engine control method and apparatus An improved method and system for the control of an engine system such as the spark timing. The control senses the speed variations either during a portion of a complete cycle and a complete cycle and/or from cycle to cycle in order to determine the load on the engi... | 06/01/2004 |
| 6705289 | Device and method for determining the firing angle A device and a method are provided to, with the aid of a limiting module, advance the maximally retarded ignition angle by a value with respect to the static combustion limit. The timing advance of the maximally retarded ignition angle may be used to avoid uncontrol... | 03/16/2004 |
| 6688283 | Engine start strategy The strategy controls operation of an internal combustion engine in the time period before an oxygen sensor is warmed up sufficiently to provide reliable feedback measurements. It involves using a target speed-time (or event) goal, and then applying feedb... | 02/10/2004 |
| 6672283 | Four-cycle engine for marine drive A four-cycle engine for a marine drive has an air induction device introducing air to a combustion chamber. The air induction device defines an intake port next to the combustion chamber. An intake valve is movable between open and closed positions of the... | 01/06/2004 |
| 6668798 | Apparatus for controlling ignition timing of engine An apparatus for controlling an ignition timing of an engine is capable of reducing or preventing occurrences of backfires. The apparatus includes a no-load deceleration state detector for detecting that an engine is in a no-load deceleration state. An en... | 12/30/2003 |
| 6668796 | Internal combustion engine control for jet propulsion type watercraft In order to provide an internal combustion engine control unit for a jet propulsion type watercraft which can control an internal combustion engine so that a rider can perform risk avoidance safely, a throttle open degree detector 22 which detects a state... | 12/30/2003 |
| 6575134 | Electronic governor for a gasoline engine A capacitive discharge ignition system for an internal combustion engine including: a capacitor for storing electrical energy to produce a spark; a first switch having a trigger input for receiving a trigger pulse; a second switch connected to the trigger... | 06/10/2003 |
| 6467456 | Engine ignition timing control system for outboard motors An engine ignition timing control system for outboard motor having a propeller connected to the engine to be rotated and mounted on a boat such that the boat is propelled forward or backward. The engine is equipped with a decompression mechanism and is st... | 10/22/2002 |
| 6209517 | Apparatus for controlling rotational speed of internal combustion engine A control apparatus controls the rotational speed of an internal combustion engine by generating a command value for ignition timing of the internal combustion engine to convert an actual rotational speed of the internal combustion engine to a predetermin... | 04/03/2001 |
| 6058908 | Hall effect ignition An electronic ignition system according to an embodiment of the present invention includes a Hall effect device for detecting crankshaft rotation. A circuit is provided to select first or second ignition timing responsive to the Hall effect device output ... | 05/09/2000 |
| 6058909 | Cylinder identifying apparatus for an internal-combustion engine In a cylinder identifying apparatus for an internal-combustion engine for identifying the state of a cylinder from rotation signal generating device of one system, reverse is detected on the basis of the occurrence period of a rotation signal when the eng... | 05/09/2000 |
| 5884605 | Controller and control method for engine ignition timing A target torque is calculated as a proportion PI relative to a torque generated by an engine at a basic ignition timing. An ignition timing correction amount is calculated based on this proportion PI, and by correcting the ignition timing by this correcti... | 03/23/1999 |
| 5778854 | Cylinder-discriminating device for internal combustion engines A cylinder-discriminating device for an internal combustion engine is provided. A reference timing signal is generated whenever the engine rotates through a predetermined rotational angle. A sparking voltage produced in a particular cylinder or a particul... | 07/14/1998 |
| 5722370 | Engine operation control system An engine operation control system which controls ignition timing is disclosed. The system fires all ignition elements simultaneously, at least one of the ignition elements being fired effectively and all other ignition elements fired ineffectively in acc... | 03/03/1998 |
