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| Number | Title | Issue Date |
| 7841318 | Control apparatus for internal combustion engine A control apparatus for an internal combustion engine, includes: a crankshaft; a crank angle detection unit that outputs a crank signal; a generator that rotates in synchronization with the rotation of the crankshaft, and that outputs alternating voltage signals wit... | 11/30/2010 |
| 7827959 | Ignition device for internal combustion engine An ignition device (ECU and a drive circuit) for a spark ignition type internal combustion engine that directs an ignition with generation of a predetermined start signal (i.e., falling of an ignition signal) has a circuit for monitoring generation timing of the sta... | 11/09/2010 |
| 7628138 | Engine control apparatus and related engine control method An engine control apparatus and related control method for an engine are disclosed wherein cylinder discrimination is executed based on a crank signal and a cam signal under a normal signal mode. If a failure occurs in either the crank signal or the cam signal, the ... | 12/08/2009 |
| 7395810 | Engine start control apparatus Oil level detection sensor detects an oil level in a crankcase. First charging circuit includes a serial connection of a first charging capacitor for charging a reverse voltage produced in a primary coil, the detection sensor, and a first diode. Thyristor is turned ... | 07/08/2008 |
| 7397207 | Electric supercharger for vehicle The electric supercharger includes a vehicle connector, an impulse signal generator empowered by a power source, and a signal amplifier. The vehicle connector has a positive terminal and a negative terminal for electrically connecting to an electrical source of said... | 07/08/2008 |
| 7370517 | Method of operating an internal combustion engine by determining angular positions of a crankshaft and camshaft A method of operating an internal combustion engine in a motor vehicle has the steps of determining angular positions of a crankshaft and a camshaft from signals of two detecting devices, monitoring a relative angular position of one of the shafts relative to the ot... | 05/13/2008 |
| 7324890 | Ignition timing control apparatus for internal combustion engine An ignition timing control apparatus can obtain high output torque without generating output torque loss, and avoid the deterioration of audibility due to successive knock occurrences. A cylinder specific ignition timing setting section includes a reference ignition... | 01/29/2008 |
| 7302933 | System and method for engine with fuel vapor purging A method for controlling engine operation of an engine having a cylinder receiving fuel from a first and a second fuel injector, the first injector having a first relationship between a first input signal and a first amount of injected fuel, and the second injector ... | 12/04/2007 |
| 7273039 | Control apparatus for vehicular internal combustion engine In a case where fuel injection system abnormality is detected, and fuel supply stop processing is carried out against the abnormality, since a judgment is made using a misfire judgment, in a case where the misfire judgment is carried out in a periodic measurement sy... | 09/25/2007 |
| 7216030 | Method and device for determining the angular position of a crankshaft in an internal combustion engine A method and a device for determining the angular position of a crankshaft of an internal combustion engine, especially when shutting down the internal combustion engine, using an angle sensor, the passing by being recorded of incremental angle marks on a signal-gen... | 05/08/2007 |
| 7206691 | Internal combustion engine knock determination device An engine ECU executes a program including a step of calculating a knock intensity N as based on comparing a waveform detected as a waveform of a vibration attributed to knocking with a knock waveform model stored in a memory as a waveform of a vibration attributed ... | 04/17/2007 |
| 7205759 | Apparatus and method for determining an engine speed A removable sensor assembly for non-intrusively sensing instantaneous speed of an engine comprising a crankshaft having a respective end equipped with an externally accessible bolt, the removable sensor assembly comprising: a housing comprising a recess configured t... | 04/17/2007 |
| 7191761 | Control apparatus for internal combustion engine An engine ECU executes a program including the steps of: determining presence of abnormality in a high-pressure fuel system; when abnormality is sensed in the high-pressure fuel system, and not in an in-cylinder injector, injecting fuel from the in-cylinder injector... | 03/20/2007 |
| 7185627 | Control apparatus for internal combustion engine An engine ECU executes a program including the step of closing a current control valve in all regions when there is abnormality in a high-pressure system fuel system (YES at S100), the step of setting the VVT overlap to 0, the step of injecting fuel from only... | 03/06/2007 |
| 7167794 | Control apparatus for an internal combustion engine A control apparatus for an internal combustion engine can detect a tubing disconnection failure of an intake pressure sensor thereby to make it possible to give a warning to a user and to take appropriate measures to cope with such a failure situation. A control uni... | 01/23/2007 |
| RE39310 | Engine control system and method An engine control system and method that utilizes throttle position as one of its control parameters. The throttle position sensor is checked by sensing changed values in a time period when the engine is operating within a predetermined speed range during which chan... | 10/03/2006 |
| 7104043 | Closed loop cold start retard spark control using ionization feedback This feature of the present invention comprises a method and apparatus to retard the spark time. As a result, the catalyst heats up quickly during the cold start. The retard spark control method of the present invention uses a closed loop to adjust the engine retard... | 09/12/2006 |
| 7100585 | Method and device for diagnosing the operating condition of an internal combustion engine exhaust gas recycling valve A method for diagnosing the operating condition of an internal combustion engine exhaust gas recycling valve. The method acquires a measurement value of a reference position of the recycling valve at a predetermined time corresponding to a normally closed position o... | 09/05/2006 |
| 7056165 | Control system for outboard motor The control system establishes an engine warm-up protocol based, at least in part, on elapsed time from engine start. The control system provides a reduced reliance on engine temperature as a basis for determining an appropriate engine idle speed. The control system... | 06/06/2006 |
| 7000594 | Electronic control unit for two-cycle internal combustion engine with exhaust control valve An electronic control unit for controlling a fuel injection amount of a two-cycle internal combustion engine with an exhaust control valve wherein the electronic control unit comprises an injection amount determination means for determining the fuel injection amount... | 02/21/2006 |
| 6998846 | Ignition diagnosis using ionization signal The present feature of the invention is generally directed to a subsystem of an ignition diagnostics and feedback control system using ionization current feedback. It utilizes the ionization signal from an ionization detection circuit to monitor ignition parameters,... | 02/14/2006 |
| 6964260 | Electronic engine control device An electronic engine control unit for a motorcycle or other two-wheeled vehicle gradually decreases engine torque at the time of a failure so as to eliminate an uneasy feeling that an operator might experience if the engine torque were to be reduced abruptly. When a... | 11/15/2005 |
| 6945223 | Failure diagnostic apparatus for intake air stream control device and control method of failure diagnostic apparatus A failure diagnostic apparatus for an intake air stream control valve which is provided in an intake system for an internal combustion engine, and which forms an air stream in the combustion chamber by changing a flow of intake air when the intake air is introduced ... | 09/20/2005 |
| 6863052 | Knocking control apparatus and method and engine control unit for variable cylinder internal combustion engine A knocking control apparatus for a variable cylinder internal combustion engine avoids erroneous determination of knocking during a fault in a cylinder pausing mechanism to appropriately control knocking associated with the ignition timing, thereby preventing engine... | 03/08/2005 |
| 6850071 | Spark monitor and kill circuit The method and apparatus of the present invention are useful for the monitoring of the electrical signals within an internal combustion spark plug circuit and the killing of a spark plug within that circuit. The invention essentially consists of connecting a transfo... | 02/01/2005 |
| 6834640 | Automotive engine control apparatus In an automotive engine control apparatus used for a multi-cylinder engine where both an injection coil and an ignition coil are employed with each of multiple cylinders, abnormal states are systematically detected, while an injection system is mutually interconnect... | 12/28/2004 |
| 6804564 | System and method for controlling and/or monitoring a control-unit group having at least two control units A system for controlling and/or monitoring a control-unit group having at least two control units, a first control unit and at least one second control unit, the first control unit being designed for performing its control function and for monitoring this control fu... | 10/12/2004 |
| 6769401 | Power output control system for internal combustion engine There is provided a power output control system for an internal combustion engine, which enables the vehicle to smoothly perform refuge travel to find a place to park when an electric throttle control device becomes incapable of controlling a throttle valve, while e... | 08/03/2004 |
| 6754611 | Failure diagnostic system for atmospheric pressure detecting device There is provided a failure diagnostic system for an atmospheric pressure detecting device, which is capable of rationally determining whether that device has failed or not and is capable of improving the diagnostic accuracy. The failure diagnostic system is compris... | 06/22/2004 |
| 6745748 | Fail-safe system for combustion engine control An engine control system executes given control tasks, for example, at a 30° angular interval of an engine crank shaft. If a failure of a crank sensor has occurred, it becomes impossible to determine the 30° angular interval of the crank shaft. In this case, the e... | 06/08/2004 |
| 6732708 | Automotive engine control apparatus In an automotive engine control apparatus used for a multi-cylinder engine where both an injection coil and an ignition coil are employed with each of multiple cylinders, abnormal states are systematically detected, while an injection system is mutually interconnect... | 05/11/2004 |
| 6732042 | Apparatus and method for detecting misfire in internal combustion engine An ECU defines consecutively ignited three cylinders as first, second and third subject cylinders. The ECU first adds up the rotation fluctuation amount at the second subject cylinder and the rotation fluctuation amount at the third subject cylinder and sets the res... | 05/04/2004 |
| 6647959 | Fail-safe device for electronic throttle control system A fail-safe device includes an intake air amount sensor, a throttle position sensor for detecting a throttle opening degree of an electronic throttle controller, an accelerator position sensor for detecting an accelerator opening degree as an amount of pr... | 11/18/2003 |
| 6619260 | Method for correcting the input signal and for synchronizing the cylinders in an internal combustion engine The method serves for input signal correction of a misfire detection function and for cylinder equalization in an internal combustion engine, especially of a motor vehicle. Here, it is provided that a control for the input signal correction (10) and a con... | 09/16/2003 |
| 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 |
| 6546911 | Default methodology for recovering from loss of high resolution engine position signal A default engine control method for an internal combustion engine recovers from the loss of a high-resolution engine position signal by calculating a high resolution pulse period based on a recognized pattern of a low resolution engine position signal. In... | 04/15/2003 |
| 6474302 | Knock control apparatus for internal-combustion engine To obtain a knock control apparatus for internal-combustion engine having a function of judging whether or not the causes for failure have been solved for returning to normal knock control at the time of the solution, and capable of easily judging failure... | 11/05/2002 |
| 6336439 | Method of controlling an internal-combustion engine by switching between two engine control systems during engine run A method of controlling functions of an internal-combustion engine having electrically operated actuators for controlling engine functions, includes the following steps: detecting control-relevant operational data by a sensor arrangement; applying the det... | 01/08/2002 |
| 6237566 | Two-cycle engine with exhaust temperature-controlled ignition timing A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) are used. The engine exhaust gas temperature is sensed and is used to... | 05/29/2001 |
| 6148777 | Control for direct injected two cycle engine A fuel injection control strategy and system for engines for maintaining good performance under normal running conditions and also for providing cylinder engine speed slow-down under abnormal conditions without necessitating cylinder skipping except in ex... | 11/21/2000 |
