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| Number | Title | Issue Date |
| 7543564 | Reverse rotation intake manifold protection system and method A method of protecting an intake manifold of an engine of a hybrid propulsion system including an electric motor comprises detecting a reverse rotation of an engine. A fuel injector of the engine that is rotating in reverse is commanded to cease operation. A spark p... | 06/09/2009 |
| 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 |
| 7360527 | Method for operating an internal combustion engine A method for operating an internal combustion engine, particularly of a motor vehicle, is described. The engine has a number of cylinders (Z1, Z2, Z3, Z4), and in each of the cylinders (Z1, Z2, Z3, Z4), one mov... | 04/22/2008 |
| 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 |
| 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 |
| 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 |
| 7096726 | Fuel injector system diagnostic system An internal combustion engine diagnostic sensor system comprises a fuel rail for the engine wherein the fuel rail has a high pressure inlet end, a plurality of injector ports, and a terminating end and wherein a piezoelectric sensor is mounted on the terminating end... | 08/29/2006 |
| 7082363 | Method for measuring the rotational speed of a crankshaft In a method for determining the rotational speed of the crankshaft of an internal combustion engine having a sensor disk which is connected to a crankshaft of the internal combustion engine, the sensor disk having a marking via a system of alternating teeth and toot... | 07/25/2006 |
| 7076361 | Engine crankshaft position recognition and tracking method applicable to cam and crankshaft signals with arbitrary patterns A method and system for providing data representing crankshaft position. For each rising edge of the crankshaft signal, a position value and a factor value are stored in a look-up table. Cam and crankshaft signals are used to locate an initial crankshaft position. T... | 07/11/2006 |
| 7069774 | Engine crank angle detecting device A crank angle detecting device that is independent of fluctuations in engine rotational speed and reliably detects a reference crank angle position. A ring gear fixed to a crankshaft of a single cylinder engine has plural projections (teeth) formed around its outer ... | 07/04/2006 |
| 7066016 | Camshaft position sensor testing system A camshaft testing system has a test sleeve, a controller, and main voltage supply. The camshaft position sensor is placed into the test sleeve. The controller activates the camshaft position sensor. The test sleeve has a test bar, which moves across the camshaft po... | 06/27/2006 |
| 7058500 | Method and system for determining cylinder position with an internal combustion engine An internal combustion engine having a crankshaft rotatable within an engine block of the engine and at least one camshaft driven by the crankshaft. The crankshaft is fixed to a crankshaft wheel having a plurality of crankshaft wheel marks and at least one crankshaf... | 06/06/2006 |
| 7040149 | Fuel injection system diagnostic system An internal combustion engine diagnostic sensor system comprises a fuel rail for the engine wherein the fuel rail has a high pressure inlet end, a plurality of injector ports, and a terminating end and wherein a piezoelectric sensor is mounted on the terminating end... | 05/09/2006 |
| 7017556 | Engine start fuel control system An engine startup fuel control system for use with a four-cycle internal combustion engine of the type having a plurality of combustion chambers, an air intake passageway, a source of fuel, a crankshaft and a camshaft which operates the engine cylinder valves. A mul... | 03/28/2006 |
| 7013719 | Device for identifying crank angle of engine The present invention includes first signal set determining means 35 for determining a signal set to be a first signal set when determination by first determining means 33 of a crank angle detecting signal determining means for every one rotation and d... | 03/21/2006 |
| 6994062 | Variable valve timing control device A variable valve timing control device includes a rotor member integrally connected to either one of a camshaft and a crankshaft, a housing member connected to either one of the crankshaft and the camshaft via a driving force transmitting member and assembled to the... | 02/07/2006 |
| 6955081 | Electronic engine control with reduced sensor set An engine control apparatus is disclosed for determining crankshaft position, engine phase, engine loading, and intake air mass of an internal combustion engine (10) through monitoring intake air pressure fluctuations (120). The opening of the intake v... | 10/18/2005 |
| 6939110 | Control system for I.C. engine driven blower A system for maintaining constant pressure, such as at a mosquito fogging nozzle, by electronically controlling the speed of an engine that is coupled to a blower. A pressure sensor measures the pressure provided by the blower and provides a pressure signal to the e... | 09/06/2005 |
| 6922627 | Detection of engine rotation speed in spark ignition internal combustion engine A spark ignition internal combustion engine (2) performs ignition within a fixed ignition crank angle range. The operation control device comprises a programmable controller (1) and a unit crank angle sensor (9) outputting a unit crank angle sig... | 07/26/2005 |
| 6895931 | Method of determining the crankshaft position of an internal combustion engine A method for determining the crankshaft position of an internal combustion engine is described with which, in the event of failure of the crankshaft sensor, the crankshaft position may be determined with relative precision at all times. For this purpose, the camshaf... | 05/24/2005 |
| 6885932 | Misfire detection in an internal combustion engine A method and system for a misfire detection acquires (301) a series of acceleration data (302) representative of acceleration behavior of an engine. The data is sampled (304) to obtain acceleration data samples at a rate sufficient to obtain up ... | 04/26/2005 |
| 6775611 | Engine control apparatus A crank sensor outputs a crank signal including an angle indicating part and a reference position indicating part. A cam sensor outputs a cam signal including an angle indicating part and a reference position indicating part. A microcomputer executes a cylinder dete... | 08/10/2004 |
| 6766242 | Engine control apparatus An engine control apparatus receives a rotation signal composed of a train of pulses at every interval of a predetermined angle and having a reference position intermediate of the pulse train. A microcomputer in the apparatus executes a detection of the reference po... | 07/20/2004 |
| 6745121 | Cylinder indentification apparatus for WT controlled internal combustion engine A crank angle position signal is generated which corresponds to rotational angles of a crankshaft and includes a specific signal for obtaining reference crank angle positions of cylinders. A cylinder identification signal is generated corresponding to the respective... | 06/01/2004 |
| 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 |
| 6679223 | Engine control system with cam sensor An engine control system executes fuel injection and ignition in accordance with a detected engine rotational position. The engine control system has a crank sensor on a crankshaft and a cam sensor on a camshaft. The crank sensor generates a first referen... | 01/20/2004 |
| 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 |
| 6640778 | Controlled variable computing apparatus for internal combustion engine Controlled variable computing apparatus for an internal combustion engine 101 includes, a revolution signal generating unit 111, 112, 121, 122 for outputting a revolution signal in synchronism with revolution of the internal combustion engine and a contro... | 11/04/2003 |
| 6609498 | Target wheel tooth detection A method and apparatus for determining the switching states of a target wheel used in an internal combustion engine, the method including providing a camshaft, providing a target wheel having teeth coupled to the camshaft, providing a sensor to detect the... | 08/26/2003 |
| 6591184 | Cylinder identifying system for internal combustion engine A cylinder identifying system for an internal combustion engine enables fuel injection and ignition controls for individual cylinders to be speedily performed upon starting of engine. A cylinder identifying means (10) operating on the basis of a crank ang... | 07/08/2003 |
| 6588404 | Redundant sensor with cylinder shutdown A method of providing engine timing information for an engine having a plurality of cylinders including detecting a fault for a crankshaft sensor generating engine timing information with a camshaft sensor, providing spark and fuel with the engine timing ... | 07/08/2003 |
| 6560528 | Programmable internal combustion engine controller A computerized 2 and 4 cycle internal combustion engine control and optimization/tuning system is disclosed, wherein fuel injector control is optimized to increase horsepower and fuel economy. The system is comprised of an on-board engine controller with ... | 05/06/2003 |
| 6446602 | Cylinder identifying system for internal combustion engine A cylinder identifying system for an internal combustion engine capable of establishing a complicated cam signal pulse pattern without need for setting specific periods for cylinder identification while enhancing control performance by reducing a crank ro... | 09/10/2002 |
| 6405708 | Dual ignition system with timing offsets for opposed piston engine A dual ignition system for a truly opposed piston engine providing offsets from the standard timing separation, which is 1440 degrees divided by the number of pistons. Timing is obtained from a timing mark on the flywheel. An ignition transformer is provi... | 06/18/2002 |
| 6357418 | Internal combustion engine control system and apparatus therefor An internal combustion engine control system comprising the steps of supplying a reference position detection pulse and a low revolution ignition position detection pulse generated by a single pulser coil of a crank shaft sensor at a reference position of... | 03/19/2002 |
| 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 |
| 6302085 | Apparatus and method for detecting crank angle of engine A crank angle detecting apparatus of an engine is equipped with a camshaft sensor for outputting the same number of pulse signals CAM as the cylinder number at every stroke phase difference between the cylinders, and further equipped with a crankshaft sen... | 10/16/2001 |
| 6240900 | Individual knock threshold A method is provided for controlling knock in an internal combustion engine. The method utilizes an adaptive control scheme to tailor knock thresholds to the current engine operating conditions, as well as to identify the cylinder in which the knocking co... | 06/05/2001 |
| 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 |
| 6016789 | Apparatus for control of an internal combustion engine, especially for control of fuel injection and ignition The apparatus for controlling an internal combustion engine, especially a V-motor with a camshaft for each cylinder bank, includes a signal transmitter with a transmitter wheel having an angle mark extending over 180° for each camshaft. A signal transmit... | 01/25/2000 |
