Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7607415 | Method of crank signal disturbance compensation An engine system that compensates for disturbances in a crankshaft signal is provided. The system includes: an error module that computes an error between an ideal period and an actual period of a crankshaft signal; a correction factor module that determines a corre... | 10/27/2009 |
| 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 |
| 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 |
| 7366638 | Abnormally detecting apparatus for automatic speed changer In a conventional abnormality detecting apparatus, it is impossible to judge a breakdown before the breakdown actually takes place. An abnormality detecting apparatus for an automatic speed changer includes a speed change controlling unit for controlling the automat... | 04/29/2008 |
| 7363143 | Control apparatus for internal combustion engine A control apparatus for an internal combustion engine, comprising crank angle calculation means for calculating a crank angle between edges which are detected by a first crank angle sensor and a second crank angle sensor, on the basis of a crank cycle between the ed... | 04/22/2008 |
| 7353803 | Misfire detection apparatus for internal combustion engine based on piston speed The present invention generally includes a method of detecting a misfire in an internal combustion engine. The method includes detecting a first engine speed at a first crankshaft position that corresponds to about a top dead center compression position of a first p... | 04/08/2008 |
| 7325528 | Method of operating a single cylinder two-stroke engine The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying combustion air as well as an ignition device for igniting a mixture in the co... | 02/05/2008 |
| 7318420 | Control apparatus for internal combustion engine A drive control circuit supplies power to a solenoid coil in an in-cylinder injector of a cylinder in response to a fuel injection signal. A failure detection circuit to detect disconnection failure at an in-cylinder injector is arranged to be shared among cylinders... | 01/15/2008 |
| 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 |
| 7263976 | Method for controlling an internal combustion engine A method is proposed for controlling an internal combustion engine having a crankshaft, in which from the angular pulses of a sensor a pulse time is formed that is a measure for the rotation of the crankshaft of the internal combustion engine per time unit. At a pre... | 09/04/2007 |
| 7254991 | Method for determining the rotation angle position of the camshaft of a reciprocating-piston engine in relation to the crankshaft In a method for adjusting the rotation angle position of the camshaft of a reciprocating-piston engine in relation to the crankshaft in which the crankshaft is in drive connection with the camshaft via an actuating gear, which is designed as a three-shaft gear havin... | 08/14/2007 |
| 7197391 | Method and apparatus for controlling an engine using a cam signal In an apparatus, an abnormality determining circuit determines whether a crank signal is abnormal, and a switching circuit switches an input signal to an edge interval measuring circuit from the crank signal to a cam signal when it is determined that the crank signa... | 03/27/2007 |
| 7184876 | Device and process for determining the position of an engine Device for determining the position of an engine includes: a sensor that has a rotary part and a fixed part, whereby said fixed part comprises: elements (for generating a first signal based on the position of the rotary part... | 02/27/2007 |
| 7171298 | Method and system for identifying phase in an internal combustion engine A method and system for identifying a phase in an internal combustion engine (102) is disclosed. The internal combustion engine may include an even number of cylinders and is fitted with at least one sensor. In one embodiment, the method includes measuring a ... | 01/30/2007 |
| 7146947 | Arrangement for adjusting the angle of rotation of a camshaft relative to a crankshaft An arrangement for adjusting the angle of rotation of a camshaft (5) relative to a crankshaft is provided. The arrangement requires many components, which partially also require different operational conditions. The new arrangement is structured in a modular ... | 12/12/2006 |
| 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 |
| 7032440 | Engine rotation information detection device An engine rotation information detection device including: a generator that rotates in synchronization with an engine to output an AC voltage; a pulse signal generator that detects reluctors of a rotor having many reluctors and one reluctor missing portion to genera... | 04/25/2006 |
| 7027907 | Sequence scheduling control for a fuel injected engine An electronic control unit for an internal combustion engine having a fuel injection system and an ignition system including: timing determination means (2) for determining timing sequences for injection events of the fuel injection system and ignition events... | 04/11/2006 |
| 7021287 | Closed-loop individual cylinder A/F ratio balancing The individual cylinder air to fuel ratio of an internal combustion engine varies due to the fact that the intake manifold cannot distribute airflow into the individual cylinders evenly. This feature of the present invention utilizes minimum timing for best torque M... | 04/04/2006 |
| 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 |
| 7000598 | Bumpless crankshift position sensing Disclosed herein are methods of generating an active crank series of signals that is derived from at least two series of signals, wherein one or both of the series of signals have been modulated to produce two series of signals that resemble each other. Also disclos... | 02/21/2006 |
| 6990405 | Engine control device An engine control device is provided to reliably detect an abnormality in crank pulses. The device determines that there is an abnormality in crank pulses when the situation, in which a standard pitch crank pulse counter T does not reach a prescribed value T0 | 01/24/2006 |
| 6918382 | Hydrogen powered scooter A scooter powered by a hydrogen powered internal combustion engine fueled by a throttled stream of air into which a controlled amount of hydrogen is injected. A hydrogen fuel control system is used to control the amount of hydrogen injected into the throttled air st... | 07/19/2005 |
| 6912981 | Method and apparatus to correct a cam phaser fault A method of correcting a cam phaser system failure including detecting a cam phaser system fault and generating a control signal to correct said cam phaser system fault. ... | 07/05/2005 |
| 6898510 | Method of controlling an internal combustion engine In a method of controlling an internal combustion engine, at least one operating variable is controlled, a pre-control ignition timing efficiency is formed as a function of operating parameters of the engine and/or external intervention measures, and the pre-control... | 05/24/2005 |
| 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 |
| 6880525 | Ignition circuit having RPM limitation for an internal combustion engine The invention is directed to an ignition circuit for a two-stroke engine in a portable handheld work apparatus. A spark plug (2) is connected via a switch (14) to a voltage source (16). The ignition switch (14) is actuated by an electroni... | 04/19/2005 |
| 6874473 | Engine cycle recognition for fuel delivery Piston stroke recognition methods for small internal combustion engines, such as single and two cylinder engines, in which the ignition-related trigger pulses corresponding to the engine cylinders are the only input signal used for stroke recognition. ... | 04/05/2005 |
| 6834216 | Method and apparatus for the automatic synchronization of dynamic angular and time domain control systems A hardware system is provided for performing angle-to-time and time-to-angle conversions in a dynamic angular measurement and control system. The system has the capability of updating scheduled event times of other hardware timers in the system that are being used t... | 12/21/2004 |
| 6805096 | Cylinder judgment apparatus and cylinder judgment method of engine Cylinder judgment signals are output from cam sensors at every uneven crank angle interval. The number of cylinder judgment signals output per cam sensor during a time period between a previous output and a present output of cylinder judgment signals from the other ... | 10/19/2004 |
| 6805110 | Ignition control method and apparatus of an engine The invention discloses an apparatus and method that calculates parameters for ignition control with respect to a reference cylinder every 180° of crank angle and actuates a dwell-on period and the ignition of the ignition cylinder based on those parameters. A time... | 10/19/2004 |
| 6778899 | Process and control unit for determining the crankshaft angle of an engine and drive train In an engine having a crankshaft and a camshaft, the current angular position of a rotor fixed to the crankshaft is detected, and a top dead center (TDC) position of the crankshaft is determined based on the current angular position of the rotor, wherein the TDC pos... | 08/17/2004 |
| 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 |
| 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 |
| 6727686 | Method and device for detecting incorrect polarity in a signal transducer formed as an inductive sensor A method and a device for detecting mispolarization in a signal transducer is described, with which the output signal of the signal transducer—that has at least one singularity—is converted into a square-wave signal. Intervals between specifiable signal-level ch... | 04/27/2004 |
| 6675772 | Method and system for controlling an internal combustion engine when such engine loses a primary crankshaft position sensor A method and system for controlling an internal combustion engine system upon loss of a crankshaft position sensor signal produced by such system is provided. The method includes providing a control module having a central processing unit and a time proce... | 01/13/2004 |
| 6662781 | Method and device for electronic spark control in the event of the failure of the phase detector A method and a device for controlling knock in response to the failure of a phase detector are described, which implement the normal, cylinder-selective knock control under the condition, that the dual ignition is not activated. If the dual ignition is ac... | 12/16/2003 |
| 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 |
| 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 |
| 6505128 | Apparatus and method for judging cylinders of an engine A plurality of cam sensors are provided for outputting cylinder judgment signals and the output number of cylinder judgment signals between reference crank angle positions are counted for each cam sensor, to thereby perform cylinder judgment based on comb... | 01/07/2003 |
