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| Number | Title | Issue Date |
| 8181637 | Control apparatus for internal combustion engine A control apparatus for an internal combustion engine, includes: a crankshaft; a crank angle detection unit; a generator; and a control unit to which alternating voltage signals are input, that ascertains ignition timings based on crank signals, performs ignition co... | 05/22/2012 |
| 7931014 | Kickback preventing circuit for engine An ignition control circuit and method of operation provides a very simple but highly effective prevention of engine reverse rotation upon starting by prohibiting ignition when a reverse rotation situation arises. ... | 04/26/2011 |
| 7717102 | Reverse engine rotation detection system A method of determining reverse engine rotation includes calculating a ratio of on time to off time of a camshaft position signal during camshaft rotation, determining whether a predetermined camshaft state has been entered based on said ratio, comparing the most re... | 05/18/2010 |
| 7431014 | Internal combustion engine and vehicle having the same An internal combustion engine performs an ignition timing control by an electronic control in accordance with a pulse signal from a pulser. The pulser generates a plurality of the pulser signals per one rotation of the internal combustion engine. An ignition timing ... | 10/07/2008 |
| 7331320 | Engine starting apparatus and method An engine starting apparatus has a reverse-rotation detection sensor for detecting the reverse rotation of an engine. A control apparatus for controlling the engine starting apparatus performs such control that a starter motor is not rotated while the reverse rotati... | 02/19/2008 |
| 7185628 | Continuous engine reverse rotation detection system A reverse rotation detection system for an engine with at least one camshaft and a crankshaft includes a camshaft position sensor that generates a camshaft position signal based on a rotation of the camshaft. A second sensor input device generates a crankshaft posit... | 03/06/2007 |
| 7177755 | Apparatus for controlling engine rotation stop by estimating kinetic energy stop position A control apparatus for an engine increases an intake air quantity just before engine stop to increase a compression pressure in a compression stroke. As the compression pressure is increased, a negative torque in the compression stroke increases and obstructs engin... | 02/13/2007 |
| 7159571 | Method for detecting reverse rotation for internal combustion engines In a method for detecting reverse rotation when starting an internal combustion engine having a sensor disk which is coupled to a crankshaft of the engine, the sensor disk having a marking via an alternating arrangement of teeth and tooth spaces, and a first sensor ... | 01/09/2007 |
| 7156083 | Control apparatus and method for internal combustion engine A control apparatus for an internal combustion engine includes a crankshaft, a camshaft for actuating a valve of the engine, and a rotating electrical machine that is coupled to one of the crankshaft and the camshaft. The apparatus includes a computer that controls ... | 01/02/2007 |
| 7066162 | Method and apparatus for quick starting a rope-start two-stroke engine The period required to start a rope-start, two-cycle engine is reduced by enabling the engine's firing sequence to be initiated immediately upon determining the absolute rotational position of the engine and before determining the engine's direction of rotation. The... | 06/27/2006 |
| 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 |
| 7047956 | Kickback preventing device for engine A number of embodiments of ignition systems wherein reverse rotation also known as kickback is detected particularly upon engine starting and stopped until the condition has been cleared and forward running is assured. ... | 05/23/2006 |
| 7028676 | Inductive ignition system for internal combustion engines The ignition system for internal combustion engines includes a rotor and an armature having an ignition coil in which voltage signals, each having pulses of opposite polarities are cyclically induced during each rotor revolution; a control unit for the ignition curr... | 04/18/2006 |
| 6945208 | Start control apparatus of internal combustion engine A start control apparatus includes a starter, a number-of-revolutions detection unit of an internal combustion engine, a crank angle sensor, a cam sensor, and a control unit for controlling cylinder ignition based on a crank angle signal and a cam signal. The contro... | 09/20/2005 |
| 6814055 | Magnetic ignition system A circuit to achieve a large ignition advance, limitation of speed of revolutions and to prevent backfiring and reverse direction running in a magnetic ignition system that comprises a flywheel with two poles and a two-legged iron core. An ignition transformer (L... | 11/09/2004 |
| 6786212 | Method for preventing a reverse rotation of an engine The present invention includes a method for preventing a reverse rotation of an engine. In connection with starting an engine, when an operation of a starter motor stops while a predetermined monitoring condition for a reverse rotation is satisfied, it is determined... | 09/07/2004 |
| 6732713 | Crank angle detection apparatus Even if the engine is started from any crank angle position, it is possible to correctly determine the rotational direction of a crankshaft, so that fuel injection or ignition can be stopped when the crankshaft is rotating in the reverse direction. A measurement mem... | 05/11/2004 |
| 6694949 | Ignition control device for internal combustion engine A rotor of a crankshaft has protrusions. A timing sensor produces a rotation leading signal and a rotation trailing signal. A control unit measures a previous signal production interval and a present signal production interval based on the rotation signal... | 02/24/2004 |
| 6691690 | Method and system for preventing reverse rotation operation of engine The present invention relates to a method and system for preventing reverse rotation operation of an engine using a system that includes a crank angle sensor (CAS), a cam position sensor (CPS), and an engine control unit for receiving signals from the CAS... | 02/17/2004 |
| 6675784 | Engine ignition system having fail-safe function In an engine ignition system having a fail-safe function, a battery, a coil and a transistor are connected in series. A capacitor is connected to the coil by way of a diode. The capacitor, a primary winding of an ignition coil and a transistor are connect... | 01/13/2004 |
| 6578550 | Device for detecting the reverse rotation of a rotating part of an internal combustion engine The invention relates to a device for detecting the reverse rotation of a rotating part of an internal combustion engine, having a crankshaft (3) whose rotation, by means of a sensor (6) and a detector disk (2) which is connected to the crankshaft (3) and... | 06/17/2003 |
| 6435158 | Method and system for preventing reverse running of internal combustion engine A method for preventing reverse running of an internal combustion engine includes determining the operational state of the vehicle starter motor, determining whether a stall or imminent stall condition exists, and suspending operation of the engine based ... | 08/20/2002 |
| 5778862 | Ignition controller for internal combustion engine In an ignition controller for an internal combustion engine, an angle sensor includes a plurality of sensor means for individually outputting a pulse signal SGT1 corresponding to a first reference crank angle and a pulse signal SGT2 corresponding to a sec... | 07/14/1998 |
| 5622153 | Device for and a method of detecting the backward revolution of a revolving component of an internal combustion engine For detecting a backward revolution of a revolving component of an internal combustion engine, with a sensor which senses a revolving component having at least one angular mark, the backward revolution is assumed when a prescribable value between two puls... | 04/22/1997 |
| 5606958 | Ignition system for an internal-combustion engine, particularly for use in a chain saw or the like Ignition system for an internal-combustion engine, in particular for use in a chain saw or the like, comprising a magnetically conducting core supporting a charging winding and a triggering winding, a flywheel having at least one magnetic field generating... | 03/04/1997 |
| 5220902 | Ignition device for internal combustion engines The device comprises a magnet which induces several current pulses of alternating polarity in a primary winding, the current being restored in a resistance (R1) in series with a transistor (Ti). The voltage developed across the terminals of the resistance... | 06/22/1993 |
| 5020506 | Engine igniter An engine igniter has a reference signal coil which generates an advance-side reference signal and a lag-side reference signal during a half-cycle of the alternating current output of a generator. An ignition timing control circuit determines the directio... | 06/04/1991 |
| 4972822 | Ignition apparatus for an internal combustion engine Disclosed is an ignition apparatus for an internal combustion engine adapted to be started by the rotation of a crank shaft upon rotation of a starter. A sensor detects first and second different angular positions of the crank shaft to change the output l... | 11/27/1990 |
| 4953520 | Ignition apparatus of internal combustion engine An ignition apparatus of an internal combustion engine includes a detecting circuit for detecting a state of the engine in which reverse rotation is taking place, and an ignition blocking circuit for blocking the generation of ignition sparks when such re... | 09/04/1990 |
| 4913124 | Ignition apparatus for an internal combustion engine An ignition apparatus for an internal combustion engine started by rotation of the crank shaft in one direction by the driving of a starter. An ignition coil and an ignition plug connected to the ignition coil are provided to generate ignition sparks at a... | 04/03/1990 |
| 4909229 | Ignition system for an internal combustion engine An ignition system for an internal combustion engine for preventing the generating of ignition sparks when the engine is reversely rotated, wherein an ignition coil for energizing a spark plug is slowly deenergized when the engine is in reverse rotation, ... | 03/20/1990 |
| 4895120 | Ignition control system for an internal combustion engine An ignition control system for an internal combustion engine which includes a microcomputer which operates to control the ignition timing in response to engine speed and engine temperature signals individually and in preselected combination with an engine... | 01/23/1990 |
| 4862861 | Under the flywheel ignition system The present invention is directed to an improved capacitive discharge ignition system for a two cylinder internal combustion engine, such as an outboard marine engine. The system is adapted to be located beneath the flywheel of the engine and has overspee... | 09/05/1989 |
| 4858587 | Ignition device for an internal combustion engine An ignition device for an internal combustion engine comprises a sensor for producing a first and a second angular angle corresponding to a first and a second crank position, respectively, a flip-flop circuit which is set or reset by the first angular sig... | 08/22/1989 |
| 4827891 | Ignition apparatus for preventing unnecessary charging in an internal combustion engine An ignition apparatus of a capacitor discharge ignition type comprises: an ignition timing signal generator to generate an ignition timing signal synchronized with the rotation of the engine; a capacitor; a blocking oscillator; a rectifier for rectifying ... | 05/09/1989 |
| 4491122 | Anti-reverse operation of solid state inductive magneto Solid state inductive magneto ignition system with antireverse running circuit has a switching transistor connected in circuit with the primary of an ignition coil. A control circuit is connected for cutting "off" the switching transistor to generate igni... | 01/01/1985 |
| 4491121 | Ignition system for two-cycle engine An ignition system for a two-cycle engine which comprises a rotational body rotatable in synchronism with the crank shaft of the engine and having thereon a detectable portion extending circumferentially thereof, and a detector placed in the vicinity of t... | 01/01/1985 |
| 4483306 | Magneto having transistor ignition circuit for engines A magneto for two-cycle engines comprises a rotor provided with a magnet and a pair of poles, and a stationary assembly including a U-shaped iron core having a pair of legs and an ignition coil wound around one of the legs. The magnetic circuit provided b... | 11/20/1984 |
| 4401096 | Magneto ignition system for an internal combustion engine To prevent reverse-direction operation of an internal combustion (IC) engine to which the ignition system is connected which, possibly, may lead to dangerous conditions if the IC engine is used, for example in a chain saw, lawn mower, or the like, a diode... | 08/30/1983 |
| 4388900 | Automatic stopping device for diesel engine This invention relates to an automatic stopping device for stopping a diesel engine through cutting off the fuel supply to the latter upon detect of an accidental reversing of the diesel engine. The reversing of automobile diesel engines is rather easy to... | 06/21/1983 |
