Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7305871 | Cylinder discriminating device and method thereof, and engine ignition control device and method thereof A cylinder discriminating device includes a cylinder discriminating section. A crank rotor includes first and second non-tooth portions asymmetrically positioned on the crank rotor. The first non-tooth portion is positioned to correspond to a top dead center of a sp... | 12/11/2007 |
| 7275509 | Method for engaging the starter pinion of a starter with the starter ring gear of an internal combustion engine during the running-down of the internal combustion engine A method is provided for engaging a starter pinion of a starter with a starter ring gear of an internal combustion engine during the running-down of the internal combustion engine, which internal combustion engine has an arrangement for determining rotational speed ... | 10/02/2007 |
| 7271558 | Method for the generation of electrical pulses In rotating systems with angular references, angular- and/or time-based pulses must be generated which can be described in a generic manner to meet various requirements. The parameters for definition of the pulse are assigned as a value pair to permit more flexibili... | 09/18/2007 |
| 7047122 | Extrapolation method for the angle-of-rotation position A method is described for determining the angle-of-rotation position (φ) of a shaft of an internal combustion engine, in particular a crank angle (φ) of a crankshaft, information at least about incremental angles of rotation (Δφ) of the shaft and running times (... | 05/16/2006 |
| 7040286 | Engine control system and method An engine control system for an internal combustion engine and a method of programming is provided. The engine control system has a rotation sensing system, an intelligent controller connected to the rotation sensing system for calculating at least one of a cylinder... | 05/09/2006 |
| 6946830 | Apparatus for detecting rotation angular positions of a rotor A rotation-angular-position detecting apparatus of a rotor is capable of confirming an angular position of a rotation of the rotor within a relatively short period of time following a start of the rotation. The rotation-angular-position detecting apparatus includes ... | 09/20/2005 |
| 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 |
| 6644273 | Internal combustion engine control apparatus An internal combustion engine control apparatus can reliably detect abnormality in a crank angle position signal to ensure a fail safe function upon occurrence of the abnormally. A fuel injection signal and an ignition signal is generated based on the res... | 11/11/2003 |
| 6553965 | Control system for internal combustion engine A control system for an internal combustion engine is provided which is capable of controlling ignition timing, fuel injection timing and a fuel injection amount in a stable manner at any time even in an engine, or in an operating range or in an operating... | 04/29/2003 |
| 6445998 | Engine control unit using pulses of different frequencies In an engine control unit, a pulse interval in a crank signal having a pulse missing portion is measured. On the basis of the measured pulse interval, frequency multiplication signals of an integral multiple are generated by the next pulse. At the time of... | 09/03/2002 |
| 6341253 | Engine control apparatus with cylinder discrimination function An engine control apparatus generates a 30° CA signal which rises per 30° CA rotation based on a rotational signal from a crank angle sensor and counts up a value CNT of a crank counter by the 30° CA signal. It also reads the level of a cylinder identi... | 01/22/2002 |
| 6035826 | Crank angle detecting apparatus of internal combustion engine A crank angle detecting apparatus for an internal combustion engine includes a crankshaft operationally coupled to pistons. A crank rotor provided on the crankshaft has a plurality of angular segments, each angular segment includes a group of teeth of dif... | 03/14/2000 |
| 5806488 | Electronic engine timing An electronic timing system for producing precise timing control signals to the fuel injectors and ignition coils of an internal combustion engine. The system includes a cylinder cycle marker circuit (16) for generating an engine cycle reference signal ba... | 09/15/1998 |
| 5513612 | Multiple combustion ignition timing system The ignition system of the present invention includes electrical circuitry for firing two or more sparks during the power stroke of the engine. The sparks are fired at precise preselected degree positions of the piston, and the degree positions of the spa... | 05/07/1996 |
| 5497749 | Method for controlling engine ignition A method for controlling engine ignition for use in a engine system wherein the engine system includes a plurality of cylinders and a crank shaft coupled to the cylinders, comprises the steps of: detecting a rotation angle of the crank shaft to thereby ge... | 03/12/1996 |
| 5325710 | Crank angle detecting system for a two-cycle engine A crank angle detecting system for a two-cycle engine has a first detecting disk secured to a crankshaft and having a plurality of first projections, a second detecting disk secured to the crankshaft and having three projections, a first pickup for detect... | 07/05/1994 |
| 5305220 | Apparatus for electronically measuring the speed of internal combustion engines and method of operating such apparatus in monitoring an internal combustion engine An apparatus and process for electronically measuring rotational characteristics of a rotating part that rotates with a crankshaft of an internal combustion engine. The rotating part has reference marks and measuring scale marks thereon. The apparatus inc... | 04/19/1994 |
| 5291409 | Spark timing control system A digital spark timing control for an ignition system of a spark ignited internal combustion engine. Engine crankshaft position sensor, develops by way of example, three reference pulses and eighteen position pulses for each complete revolution of the cra... | 03/01/1994 |
| 5184590 | Engine timing control apparatus An engine timing control apparatus has a crankshaft position sensor that generates an output signal in the form of a series of pulses having gaps at regular intervals, the gaps indicating reference positions of the crankshaft. The crankshaft position sens... | 02/09/1993 |
| 5176117 | Engine control system An improved method of determining engine ignition timing utilizing a simplified toothed wheel arrangement and sensors by determining angular shaft speed very close to the ignition timing.... | 01/05/1993 |
| 5172669 | Engine control system A method of timing an event in an internal combustion engine embodying sensors that sense a reference output shaft angle position and a series of incremental output shaft angle positions each sensed by a respective sensor. The timing of the event is chose... | 12/22/1992 |
| 5105783 | Digital ignition system A method of and apparatus for enabling at least one spark plug of a internal combustion engine to provide a fuel igniting spark at a selectable time in the engine cycle is disclosed. Sensors provide a first engine rotation determined pulse train the repet... | 04/21/1992 |
| 5076234 | Apparatus and method for controlling a multi-cylinder internal conbustion engine An engine control apparatus and method for accurately controlling the operation of an engine such as ignition, fuel injection, etc., particularly in the high-speed range or during a sudden change in the rotational speed of the engine. A signal generator g... | 12/31/1991 |
| 4953531 | Crank angle detector for an engine A crank angle detector for an engine includes a cam rotor plate for detecting a cylinder number to be ignited and a cam pulse sensor provided opposite thereto, a crank rotor plate for sensing a crank angle and a crank pulse sensor provided opposite theret... | 09/04/1990 |
| 4873958 | Engine ignition timing control system An engine ignition timing control system comprises a camshaft angle sensor for detecting specific cam angles and outputting corresponding cam angle signals, a crankshaft angle sensor for detecting specific crank angles and outputting corresponding crank p... | 10/17/1989 |
| 4790280 | Ignition apparatus An ignition apparatus has an electrically controlled spark advance mechanism. It includes first ignition signal output circuit to output a first ignition timing signal with a predetermined spark advance synchronously with engine rotation, a second ignitio... | 12/13/1988 |
| 4747382 | Ignition timing control system for internal combustion engines An ignition timing control system for an internal combustion engine comprises magnetic pick-up means for magnetically sensing the angular position of the crankshaft and for generating an output signal indicative thereof, control means for controlling the ... | 05/31/1988 |
| 4726347 | Electronic ignition signal distributor for automobile engine Disclosed is an electronic ignition signal distributor for automobile engine, in which cylinders of the engine are identified using an ignition sequence counter and basing on the reference position signal and crank angle signal. The cylinder identity sign... | 02/23/1988 |
| 4723520 | Ignition timing control method for internal combustion engines A desired value of ignition timing and a correction value therefor are calculated at a timing corresponding to a first specific one of sensed predetermined crank angle positions of each cylinder of the engine. Data indicative of the calculated desired val... | 02/09/1988 |
| 4649881 | Precision distributorless ignition control system for internal combustion engines An electronic ignition system is disclosed for controlling as a function of a selected engine parameter the ignition instants of an internal combustion engine having at least one cylinder, a piston, a spark plug for effecting combustion in the cylinder an... | 03/17/1987 |
| 4498438 | Ignition timing control unit for a car engine and method thereof An ignition timing control unit for a car engine by use of a microprocessor having a CPU, A ROM, and a RAM and a plurality of sensors, each output of which is connected to the input of the microprocessor so as to detect various parameters about running co... | 02/12/1985 |
| 4380982 | Ignition timing control method A spark advance angle corresponding to an optimum ignition timing is calculated in accordance with the operating condition of an internal combustion engine. Then, a reference crank angle position utilized for controlling the ignition timing is selectively... | 04/26/1983 |
| 4324217 | Electronically controlled ignition for internal combustion engines An electronically controlled ignition system for internal combustion engines. Reference position detecting means generates reference signals and angular position detecting means generates angular signals indicative of the angular positions of an engine at... | 04/13/1982 |
| 4284045 | Simplified electronic ignition timing and A/D conversion A simplified electronic ignition timing system includes a pair of transducers for providing signals indicative of each cylinder-related sub-cycle of the engine and indicative of angular rotation within each cylinder sub-cycle of the engine; the angular ro... | 08/18/1981 |
| 4273089 | Open loop computer-controlled spark ignition timing system An electronic system for controlling the firing time of a spark ignition, internal combustion engine counts teeth or other code indicia as an angle-related, closed-loop, coarse indication of firing angle and follows the coarse indicating count with a fine... | 06/16/1981 |
| 4266518 | Method of controlling ignition timing for internal combustion engines and apparatus for carrying out the same Method and apparatus is provided for calculating an optimum ignition timing for an internal combustion engine on the basis of values set in dependence on operating conditions of the engine. With a view to prevent ignition times in two successive cycles fr... | 05/12/1981 |
| 4261318 | Ignition system for engines An engine ignition system includes a throttle sensor for detecting the position of a throttle valve. A control circuit is responsive to the detected throttle signal as well as the signals from other negative pressure and engine rpm sensors to generate a s... | 04/14/1981 |
| 4259723 | Method for controlling operations of a combustion engine A method for controlling the supply of fuel and ignition spark for an internal combustion engine. The supply of fuel which is mixed with air is cut off upon engine deceleration and resumed thereafter. At the transition from the cut-off to resumption of su... | 03/31/1981 |
| 4256072 | Spark timing control method and device An optimum spark timing angle, i.e. spark advance or spark advance angle, is computed for an automobile internal combustion engine by a computing unit on the basis of at least two operational parameters of an engine. An intake manifold vacuum signal durin... | 03/17/1981 |
| 4254748 | Ignition systems for internal combustion system A digital electronic ignition system employing two triggers for generating first and second voltage signals in response to engine revolutions. A first counter counts the number of second signal pulses during a predetermined interval of time from a given p... | 03/10/1981 |
