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| Number | Title | Issue Date |
| 7428459 | Apparatus for controlling an engine using a cam signal In an apparatus for controlling an engine, an abnormality determining unit determines whether the crank signal is abnormal based on a state of a input signal for an interval measuring unit. The interval measuring unit measures a time interval from when a predetermin... | 09/23/2008 |
| 7363916 | Fuel injection system and method for determining the feed pressure of a fuel pump The invention relates to a fuel injection system comprising a fuel reservoir to which fuel is fed via at least one first pump and from which fuel is discharged via injectors. The invention is characterized in that the feed pressure of the first pump is adjusted depe... | 04/29/2008 |
| 7093579 | Method and apparatus for adjusting fuel injection timing A method and apparatus for adjusting fuel injection timing detects (401) a change in the number of fuel injections for a combustion chamber (105). During a timing adjustment period, the timing for fuel injection(s) may be adjusted (405) incremen... | 08/22/2006 |
| 7093576 | System and method to prime an electronic returnless fuel system during an engine start A method for priming a fuel injected internal combustion engine with a returnless fuel system having a check valve and initiating a fuel pump with a command signal. After said initiation, adjusting said command signal as a sensed fuel pressure varies to achieve a fu... | 08/22/2006 |
| 7040296 | Engine start control system and a method thereof An engine start control system provides at least one sensor detecting engine operating conditions, an injector, and a control unit. The control unit controls the injector based on signals of the at least one sensor and it is programmed to perform a control logic com... | 05/09/2006 |
| 6990960 | Engine air amount prediction based on engine position A system and method to predict engine air amount for an internal combustion engine is described. Included is a method to predict a change in engine air amount based on engine position. This method especially suited to engine starts, where engine air amount is diffic... | 01/31/2006 |
| 6955148 | Internal combustion engine controller and method for the operation of an internal combustion engine controller An internal combustion engine controller includes a main processor for monitoring operating parameters of an internal combustion engine and a triggering device, working together with the main processor, for an electric fuel pump of the internal combustion engine. Th... | 10/18/2005 |
| 6931840 | Cylinder event based fuel control A method to deliver fuel during a start for an internal combustion engine is described. The method provides individual cylinder fuel control based on the number of fueled cylinder events. The method offers improved engine emissions while maintaining engine run-up pe... | 08/23/2005 |
| 6918367 | Method for starting an internal combustion engine, particularly an internal combustion engine having direct fuel injection During a start, particularly during a cold start, of an internal combustion engine without additional auxiliary drive, a precisely metered fuel mass is introduced into a combustion chamber. In the case of an internal combustion engine having direct fuel injection, a... | 07/19/2005 |
| 6796292 | Engine air amount prediction based on engine position A system and method to predict engine air amount for an internal combustion engine is described. Included is a method to predict a change in engine air amount based on engine position. This method especially suited to engine starts, where engine air amount is diffic... | 09/28/2004 |
| 6493628 | Engine control unit having frequency-multiplied signal generating function In an engine control unit, a crank signal is generated as a pulse train of every predetermined angle interval corresponding to rotation of a crankshaft of an engine. An edge time measuring counter receives the crank signal and measures an interval of puls... | 12/10/2002 |
| 6328018 | Control apparatus for controlling internal combustion engine The present invention provides a control apparatus for controlling an internal combustion engine that enables preferable acceleration in response to the running status of the internal combustion engine. When a computer which computes the fuel supply of th... | 12/11/2001 |
| 6253145 | Synchronization of internal combustion engine The present invention relates to the synchronization of an internal combustion, four-stroke engine during engine startup. The engine comprises a number of cylinders with pistons linked to a crankshaft, means to provide a series of pulses on each cycle of ... | 06/26/2001 |
| 6111413 | Digital degree wheel for testing ignition timing A digital degree wheel is provided including an engine sensor mounted to at least one of a camshaft, distributor and crankshaft of a vehicle for generating an activation signal after the detection of the rotation thereof. An ignition sensor connected to a... | 08/29/2000 |
| 5992374 | Control system for two cycle direct injection engine and the method thereof Disclosed is a control system and method of a two cycle direct fuel injection engine capable of smoothly suspending combustions in the cylinder during light load operation of the engine. Based on a map parameterizing the engine speed and the target engine... | 11/30/1999 |
| 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 |
| 5663933 | Meter circuit The present invention relates to an electronic meter circuit for a time comparison measurement between two successive periodic events with which the signal time ratios between two times two successive events can be recognized by a simple method. The elect... | 09/02/1997 |
| 5651347 | Fuel supply apparatus for internal combustion engine According to the present invention, a fuel supply apparatus includes a fuel pump, a delivery pipe to distribute the fuel to each injector of the engine by receiving fuel supply by the fuel pump, a pressure sensor to detect the fuel pressure supplied to th... | 07/29/1997 |
| 5481462 | Apparatus for determining an altitude condition of an automotive vehicle An altitude determining apparatus for an automotive vehicle includes a calculating part for determining a reference flow rate based on a throttle angle of a throttle valve and an engine speed of an internal combustion engine of the vehicle, the throttle a... | 01/02/1996 |
| 5284114 | Apparatus and method for controlling an internal combustion engine An apparatus and method for controlling an internal combustion engine can perform exact timing control for ignition timing, fuel injection timing and the like in an inexpensive manner. A crank angle sensing means 20 generates a crank angle signal θ compr... | 02/08/1994 |
| 5268843 | Engine misfiring determining device The device for monitoring the combustion state of each cylinder is provided in a multi-cylinder engine and determining if combustion abnormality occurs in the cylinder. The misfiring determining circuit compares an engine speed of a previous interval with... | 12/07/1993 |
| 5263450 | Control apparatus for a multi-cylinder internal combustion engine A control apparatus can electronically control the operation of a multi-cylinder engine in a precise manner. A first signal generator 1 and a second signal generator 2 are provided on a camshaft operatively connected with a crankshaft for generating a cyl... | 11/23/1993 |
| 5233964 | Universal control of a plurality of fuel injectors for an internal combustion engine Auxiliary control is used to reduce the processing load of an engine control computer by directly controlling a fuel injection system of an internal combustion engine. After initial set up, an auxiliary controller is able to control up to eight injectors ... | 08/10/1993 |
| 5063898 | Pulsed hydraulically-actuated fuel injector ignitor system The invention is a pulsed, hydraulically actuated fuel injector ignitor system for an internal combustion engine with combustion chambers and a fuel injector, comprising an outer shell containing a fuel inlet cavity, a fuel supply and scavenging chamber s... | 11/12/1991 |
| 4991101 | Data communication control system A data communication control system includes first and second control units each having a microcomputer, the second control unit carrying out a first interrupt processing which starts in accordance with a first timing signal having a first period, and a s... | 02/05/1991 |
| 4984167 | Control apparatus and method for an internal combustion engine In a control apparatus for an internal combustion engine for receiving outputs of a crank angle sensor, air flow sensor, etc., calculating control values from these outputs using a microcomputer to actuate actuators; calculated timings at which the respec... | 01/08/1991 |
| 4964050 | Method of controlling electrical devices of internal combustion engines A method of controlling a plurality of electrical devices which control an operation of an internal combustion engine wherein an operation period of time required for each of the electrical devices is computed by computing means in response to operating c... | 10/16/1990 |
| 4955340 | Electronic controller for compression-actuated fuel injector system In an internal combustion engine with combustion chambers (CC'S) (538), a fuel injector (FI) comprising an outer shell (628) containing a fuel supply cavity (FSC) (530) having an openable valve (546) for storing fuel, a control body assembly (CBA) (520) w... | 09/11/1990 |
| 4911123 | Electronic controller for compression actuated fuel injection system In an unthrottled fuel injection type internal combustion engine, a controlled injection logic to generate a first pulse train whose frequency varies with the accelerator position, N cylinder chambers (CCH's) 11, FIG. 1 ), each with a piston, and a distri... | 03/27/1990 |
| 4892077 | Fuel injection control method for internal combustion engines Fuel injection is started through a first one of fuel injection valves, and a time counter counts a period of time elapsed from the start of fuel injection through the first one valve. Fuel injection is started through a second one of the fuel injection v... | 01/09/1990 |
| 4862369 | Electronically-controlled fuel injection system An electronically-controlled fuel injection system having a synchronous counter which receives main injection time data corresponding to an amount of fuel to be injected synchronously to engine revolutions, and an asynchronous counter which receives incre... | 08/29/1989 |
| 4855919 | Method and circuitry for the driving of driver stages for functions of internal combustion engines for automotive vehicles especially for fuel injection or ignition In a method for the driving of driver stages for operations of automotive internal combustion engines, for instance for fuel injection, including the use of timer-controlled output signals of a microcontroller for the cylinder-selective driving and for th... | 08/08/1989 |
| 4838022 | Control system for controlling DC control motor which controls operation condition of internal combustion engine A control system for controlling a DC control motor which controls an internal combustion engine to follow-up a target value varying continuously depending on the operation condition of the engine, the current flowing through the DC control motor being co... | 06/13/1989 |
| 4827718 | Control system for controlling actuator to control operation of internal combustion engine A control system for controlling an actuator which controls operation of an internal combustion engine in compliance with a target value varying continuously depending on the operation condition of the engine. The control system comprises: means for detec... | 05/09/1989 |
| 4711200 | Automotive-engine fuel supply system A fuel supply system controls the amount of fuel to form a stoichiometric combustible mixture during a normal operating condition of the engine. The mixture is enriched during a transient condition to lower the exhaust gas temperature and to reduce the he... | 12/08/1987 |
| 4696276 | Method for influencing the metering of fuel to an internal combustion engine The invention is directed to a method for influencing the metering of fuel to an internal combustion engine, wherein the amount of fuel to be delivered to the engine is varied at least in dependence upon the number of revolutions or working strokes of the... | 09/29/1987 |
| 4685436 | Fuel injection control device for internal combustion engine A fuel injection control device for an internal combustion engine including a synchronous injection control means for controlling a fuel injection amount synchronously with a signal generated at every predetermined crank angle in the internal combustion e... | 08/11/1987 |
| 4617899 | Fuel injection control device for internal combustion engine A fuel injection control device for an internal combustion engine, which enables injection of fuel into separate cylinders to be controlled by only one timer counter, without reference to the number of cylinders, thereby simplifies the configuration of an... | 10/21/1986 |
| 4574761 | Electronic fuel injection control system for internal combustion engine In an electronic fuel injection control system for an internal combustion engine, a first integration circuit is responsive to an angular signal with a time period in inverse proportion to the rotational speed of the engine for integrating the first half ... | 03/11/1986 |
| 4530332 | Fuel control system for actuating injection means for controlling small fuel flows A fuel control system for actuating injection means for controlling small fuel flows is described in a microprocessor based engine control system. The short time duration fuel pulses are sensed and the control system processes the skipping of the injectio... | 07/23/1985 |
