Class / Patent application number | Description | Number of patent applications / Date published |
073114580 | Electrical system | 35 |
20090241651 | ELECTRICAL SYSTEM TESTING USING A WIRELESS-CONTROLLED LOAD BANK - A method for testing a circuit of a D.C. electrical system in a motor vehicle that includes connecting a load bank ( | 10-01-2009 |
20130228007 | METHOD AND DEVICE FOR DETECTING A REPLACEMENT OF PENCIL GLOW PLUGS IN AN INTERNAL COMBUSTION ENGINE - In a method for detecting a replacement of sheathed-element glow plugs in an internal combustion engine, an electrical parameter of the sheathed-element glow plug is determined during a driving cycle and is compared with a stored value of the same electrical parameter of the sheathed-element glow plug that was determined in a preceding driving cycle. In the driving cycle, the same electrical parameter is determined for all sheathed-element glow plugs installed in the internal combustion engine, and the determined pattern of the electrical parameter is compared with a pattern that was ascertained in a preceding driving cycle, a replacement of a sheathed-element glow plug being detected if the pattern of the driving cycle deviates from a pattern of the preceding driving cycle. | 09-05-2013 |
073114590 | Starter or alternator | 6 |
20080307871 | Device for measuring uneven wear of starter brushes for vehicle - The present invention provides a device for measuring uneven wear of starter brushes for a vehicle which can accurately measure and compare the lengths of the starter brushes and easily determine whether or not eccentricity of an armature occurs, the device comprising: a hollow support; a receiving plate formed integrally with the outer circumferential surface of an upper portion of the hollow support to accommodate a plurality of brushes; a lifting body liftably inserted into the inside of the hollow support; a plurality of detection rods slidably connected to the outer circumferential surface of an upper portion of the lifting body and moving forward or backward toward the brushes; a lift driving means for driving the lifting body; a plurality of measuring sensors for measuring the lengths of the brushes by means of the detection rods; and an LCD panel for displaying the measured lengths; and a control unit for controlling the lift driving means, the measuring sensors and the LCD panel. | 12-18-2008 |
20090249868 | Starter Zero Current Test Apparatus and Method - An alternator and starter tester system having a starter current zero test. The current is measured before and after a solenoid of a starter motor is energized and deenergized to determine if the starter motor should be failed. This allows the operator to quickly determine if the starter motor is stuck on during normal starter motor testing. | 10-08-2009 |
20100154524 | CRANKING CAPABILITY ESTIMATION FOR A VEHICULAR STARTING SYSTEM - A method is provided for determining a cranking capability of a starting system for an internal combustion engine. An average power output of a battery is determined for the starting system during a start engine cranking interval. A temperature of the starting system is determined at an initiation of the start engine cranking interval. A predetermined average power output capability for a battery having a full state of charge at the determined temperature is looked up. A predetermined minimum average power output required of the battery for starting the respective engine at the determined temperature is looked up. A state of function based on the determined average power outputs is determined. The cranking capability of the starting system is identified in response to the determined state of function. | 06-24-2010 |
20130319095 | METHOD FOR IDENTIFYING THE START OF COMBUSTION IN A CYCLICALLY OPERATING INTERNAL COMBUSTION ENGINE IN WHICH A FUEL IS IGNITED BY A CORONA DISCHARGE - The invention relates to a method for detecting the start of combustion in a cyclically operating internal combustion engine in which a fuel/air mixture is ignited by means of a corona discharge, wherein, to generate the corona discharge, an electrical resonant circuit is excited, in which an ignition electrode that is electrically insulated with respect to combustion chamber walls constitutes a capacitor together with the combustion chamber walls, and, to identify the start of combustion, an electrical variable of the resonant circuit is evaluated. The position of an extremum is evaluated, said extremum occurring in the course of the electrical variable after ignition of the corona discharge and before extinguishment thereof, or the course of the electrical variable is compared with a reference course, wherein a threshold value is predefined and fuel combustion is concluded on the basis of a deviation by more than the threshold value. | 12-05-2013 |
20140260577 | Alternator and Starter Tester with Active Load Control - A diagnostic system configured to testing a performance of a vehicle component may include a processor configured to process test information from the vehicle component and control the vehicle component to be tested. The diagnostic system may also include a memory configured to store the test information of the vehicle component and software that operates the vehicle component. The diagnostic system may further include a monitoring module configured to monitor a power supply provided to perform the testing of the vehicle component and cuts off the power supply when the power exceeds a predetermined threshold. | 09-18-2014 |
20140298896 | METHOD AND DEVICE FOR MONITORING A MESHING PROCESS OF A MESHING PINION OF A STARTER MOTOR - A method for monitoring a meshing process of a meshing pinion of a starter motor for a vehicle drive, in which an armature of the starter motor is moved by a magnet, has the following steps: detecting a solenoid signal when a solenoid of the magnet is energized in order to obtain a signal profile, in particular a current profile; generating a differential profile by differentiating the signal profile; determining zero crossings in the differential profile; and monitoring the meshing process on the basis of the determined zero crossings. | 10-09-2014 |
073114610 | Electronic control unit | 6 |
20090165543 | ERROR DETECTION APPARATUS FOR NOx SENSOR AND EXHAUST GAS CLEANING SYSTEM HAVING THE SAME - An error detection apparatus detects an error of a NOx sensor, which is located on a downstream side of a NOx remover in a discharge passage of the internal combustion engine. In the error detection apparatus, a running state detector detects a running state of the internal combustion engine. An unsteady state determiner determines whether the running state of the internal combustion engine detected by the running state detector is unsteady or not. A NOx amount retriever retrieves the amount of NOx on the downstream side of the NOx sensor by receiving an output signal of the NOx sensor. An error determiner determines the error of the NOx sensor on the basis of the amount of the NOx that is retrieved by the NOx amount retriever during a predetermined period under the running state of the internal combustion engine including the unsteady state determined by the unsteady state determiner. | 07-02-2009 |
20090241652 | ELECTRIC POWER GENERATION CONTROL DEVICE FOR MOTOR VEHICLE - The control device, which is driven by an engine mounted on the vehicle, generates electric power and determines a power generation voltage for supplying the electric power to an electrical load and the electricity storage means, comprising electricity storage amount detection means for detecting an amount of electricity stored in the electricity storage means, by integrating an input/output current to/from the electricity storage means, voltage lowering means for lowering the power generation voltage when a predetermined electricity storage amount is detected by the electricity storage amount detection means, time measuring means for measuring time elapsed after termination of charging/discharging of the electricity storage means, and lowering prohibition means for prohibiting the power generation voltage from being lowered by the voltage lowering means if the time elapsed after termination of the charging/discharging is longer than or equal to a predetermined time. | 10-01-2009 |
20090308148 | METHOD FOR CONFIRMING FUNCTION OF IDLING STOP AND RESTARTING SYSTEM - A vehicle that is equipped with an idling stop and restarting system and method thereof for testing a function of the idling stop and restarting system may include counting the ignition number of an engine including a first ignition, accumulating the operating time period after the first ignition, and setting a charging value of a battery as a predetermined value, if the ignition number is smaller than a predetermined ignition number and/or if operating time period is shorter than a predetermined operating time period, wherein the idling stop and restarting system is operated regardless of the real charging value of the battery. | 12-17-2009 |
20100206060 | ON-BOARD AFTERTREATMENT DEVICE TAIL PIPE HYDROCARBON SLIP CALCULATION - A method to determine hydrocarbon slip in a compression ignition engine equipped with an electronic control unit having memory and coupled to an exhaust gas aftertreatment system having a diesel oxidation catalyst, a diesel particulate filter, a selective catalyst reducer and a clean up diesel oxidation catalyst | 08-19-2010 |
20110056278 | SYNCHRONIZATION DIAGNOSTIC SYSTEMS AND METHODS FOR ENGINE CONTROLLERS - An engine controller diagnostic system includes a cylinder identification (ID) comparison module and a synchronization diagnostic module. The cylinder ID comparison module compares a first cylinder ID associated with a first controller with a second cylinder ID associated with a second controller. The synchronization diagnostic module determines a synchronization status of the first controller based on a comparison between the first cylinder ID and the second cylinder ID. | 03-10-2011 |
20160178700 | BATTERY MONITORING APPARATUS | 06-23-2016 |
073114620 | Ignition | 21 |
20090095062 | Spark plug sensor probe utilizing PCB as antenna - A spark plug sensor antenna including an external housing; and a printed circuit board disposed within the exterior housing, the printed circuit board having a first side and a second side and a first plurality of serpentine traces disposed on one of the first side and second side for receiving radio frequency signals generated by the spark of a spark plug. | 04-16-2009 |
20090193882 | Method and device for detecting the exchange of sheathed-element glow plugs in a combustion engine - A method and a device for detecting the exchange of sheathed-element glow plugs (GPE) in a combustion engine, in which at least one electric characteristic quantity of at least one glow plug is measured at the beginning of a driving cycle, an instantaneous value of this characteristic quantity is determined and compared to at least one stored value of the same electric variable quantity of this glow plug, which was determined at the beginning of at least one preceding driving cycle, and if the deviation of the instantaneous value from the stored value exceeds a specifiable threshold value, an exchange of the glow plug (GPE) will be inferred. | 08-06-2009 |
20100005870 | Method and Device for Monitoring a Combustion Process in an Internal Combustion Engine - For monitoring a combustion process in an internal combustion engine wherein a fuel-air mixture is ignited with a high-frequency plasma it is provided to determine the impedance of the plasma. A high-frequency signal is applied to the resonator with a capacity that is so low that no arcing-over forms on the electrodes and the high-frequency current and the high-frequency voltage are measured. The impedance of the ignited mixture is determined from the high-frequency current and the high-frequency voltage. | 01-14-2010 |
20100101312 | Apparatus and Method for Starter RPM Detection - An engine starter motor tester applies power to a motor under test at the level normally applied while that motor is installed in a vehicle and monitors the ripple in the driving current. The ripple rate, scaled by the number of windings used in the construction of the motor, provides a direct reading of the shaft speed of the unloaded motor. This number allows a valid inference concerning the state of health of the motor, and is more certain than an estimate for an unloaded motor based on operator experience and motor “sound”. A complete test apparatus includes a stored lookup table, allowing the user to key in a product brand and model number and read directly both the RPM and the test apparatus's rating of the motor under test, expressed in terms such as percentage of life remaining. | 04-29-2010 |
20100242582 | SYSTEMS AND METHODS FOR ENGINE FUEL CONTROL - An engine system includes a status determination module and an open-loop fuel control module. The status determination module determines whether a first ignition fuse is in a failure state. The open-loop fuel control module disables a first plurality of fuel injectors and actuates a second plurality of fuel injectors based on a first air/fuel (A/F) ratio when the first ignition fuse is in the failure state, wherein the first ignition fuse and the first plurality of fuel injectors correspond to a first cylinder bank, and wherein a second ignition fuse and the second plurality of fuel injectors correspond to a second cylinder bank. | 09-30-2010 |
20100242583 | SYSTEM AND METHOD FOR EVALUATING AN INTEGRATED COIL ON PLUG IGNITION SYSTEM - In at least one embodiment, an apparatus for evaluating performance of an integrated coil on plug (CoP) assembly is provided. The apparatus comprises a controller. The controller is configured to transmit a control signal to activate the CoP assembly. The controller is further configured to receive an indirect signal including a low frequency (LF) component from the CoP assembly responsive to the control signal. The controller is further configured to compare the LF component to predetermined data to evaluate the performance of the CoP assembly. | 09-30-2010 |
20120067113 | Sensing Ignition By Voltage Monitoring - A method of sensing vehicle engine ignition status is disclosed wherein samples of only the electrical system voltage levels are used. Sampling voltages that drop sufficiently (in magnitude and quantity over a period of time) will signify an “engine off” state. | 03-22-2012 |
20120073362 | FAILURE DIAGNOSIS SYSTEM - Provided is a failure diagnosis system which can diagnose whether or not a sensitivity adjustment part is in failure. The failure diagnosis system includes: a plurality of sensors; various sensors that detect operating conditions of a device; a plurality of sensitivity adjustment parts that adjust receiver sensitivities of sensor signals from the plurality of sensors based on the detected operating conditions; and a failure diagnosis part that diagnoses whether or not the plurality of sensitivity adjustment parts are in failure. The failure diagnosis part detects a failure condition of a sensitivity adjustment part when a difference between a comparison value calculated based on a maximum value of the adjusted sensor signals from the plurality of sensitivity adjustment parts at a given interval, and a maximum value of the adjusted sensor signal from the sensitivity adjustment part to be diagnosed at the given interval is larger than a given amount. | 03-29-2012 |
20140338433 | METHOD FOR DETECTING DETONATION PHENOMENA IN AN INTERNAL COMBUSTION ENGINE - A method for detecting the development of detonation phenomena in an internal combustion engine ( | 11-20-2014 |
20160138553 | SPARK PLUG FOULING DETECTION - Methods and systems are provided for detecting spark plug fouling in an ignition system of an engine. In one example, a method may include directing current flow into a primary winding of an ignition coil of the ignition system for a duration of dwell period responsive to a dwell command from a controller, reducing the current flow to discharge an initial spark, and discharging additional sparks. The method may further include selectively generating an indication of a recommendation to change one or more spark plugs of the ignition system based upon a primary current measured after the dwell period. | 05-19-2016 |
20160146177 | Two-Dimensional Igniter For Testing In-Cylinder Gas Velocity And/Or Gas Composition - An igniter system for measuring gas velocity and/or gas composition within the combustion chamber of an internal combustion engine. The igniter has an insulator body and conductive shell around the top portion of the insulator body, configured so that the igniter can be installed in place of a conventional spark plug. The igniter has two pairs of electrodes, each pair of electrodes providing a spark gap and operable to generate a spark within the combustion chamber. An activation and measurement unit is operable to generate a sustained arc in each spark gap, and to measure the voltage, current and capacitance in a measurement circuit associated with each spark gap. From various electrical measurements, the velocity and composition of the gas in the combustion chamber can be determined. | 05-26-2016 |
073114630 | Timing | 5 |
20090133482 | Ignition Timing Measuring and Display Device of Internal Combustion Engine - An ignition timing measuring and display device of an internal combustion engine ( | 05-28-2009 |
20100132443 | METHOD FOR DETECTING COMBUSTION TIMING AND SYSTEM THEREOF - An accelerator sensor that is mounted on an engine block may be used to detect vibration of a compression ignition engine, and the detected vibration signal is analyzed to determine the combustion timing of the engine. A method for detecting combustion timing may include measuring a block vibration signal generated in a combustion process of an engine, setting up a frequency area that is to be analyzed in the block vibration to divide the frequency area into wavelet scales, executing continuous wavelet transformations of the divided wavelet scales to extract respective result values thereof and to calculate differences between former result values and latter result values, comparing the calculated difference value with a predetermined value to store crank angles of pertinent timing if the calculated difference values exceed the predetermined value, and averaging the stored crank angles to determine combustion timing in a case that all wavelet scales are processed. | 06-03-2010 |
20100162805 | CETANE NUMBER ESTIMATING APPARATUS AND METHOD - A cetane number estimating device ( | 07-01-2010 |
20140090459 | ENGINE STROKE DETERMINATION APPARATUS - There is provided an engine stroke determination apparatus. The engine stroke determination apparatus is for determining stroke of a single-cylinder four-stroke engine and includes a transistor igniter. The apparatus is configured to determine a compression stroke and an exhaust stroke by comparing voltages of ignition signals that are output in the compression stroke and the exhaust stroke by the transistor igniter. | 04-03-2014 |
073114640 | Using a tool | 1 |
073114650 | Timing light | 1 |
20140250991 | Wireless Timing Light - A system and method for adjusting the ignition timing of an engine. The system includes a strobe device in communication with a wireless clamp. The wireless clamp sends a firing signal of a spark plug of an engine to the strobe device and the strobe device synchronously strobes an LED with the signal. The user can use the strobe light to view markings on the engine in relation to an indicator to determine whether the ignition timing of the engine needs to be adjusted. | 09-11-2014 |
073114670 | For ionization | 5 |
20090013772 | METHOD FOR DETERMINING COMBUSTION STATE OF INTERNAL COMBUSTION ENGINE - The invention relates of a method for determining a combustion state of an internal combustion engine, for detecting an ion current generated within a combustion chamber of the internal combustion engine, including the steps of measuring a characteristic value of the ion current detected during a period that the ion current is generated and a generation period in which the ion current is generated, and determining a combustion state on the basis of a relation between the characteristic value and the generation period with respect to an elapsed time from an ignition, and the method comprises determining that the combustion state is normal, by setting a determination reference to be larger with respect to the characteristic value and shorter with respect to the generation period, in the case that the elapsed time from the ignition is short, and determining that the combustion is normal, by setting the determination reference to be smaller with respect to the characteristic value and longer with respect to the generation period in correspondence that the elapsed time from the ignition becomes longer. | 01-15-2009 |
20100077845 | DETECTING IONIZATION SIGNAL FOR HCCI ENGINES USING A DUAL GAIN AND DUAL BIAS VOLTAGE CIRCUIT - Disclosed is a way to detect ionization within a cylinder of an internal combustion engine where the engine selectively operates in either a spark ignition mode or a HCCI mode. A single ionization detector circuit adapts in response to a control input to alter its bias voltage and its gain to selectively enable effective detection of ionization for each of two different operational modes of an internal combustion engine. | 04-01-2010 |
20100101313 | COMBUSTION STATE DETECTING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A combustion state detecting apparatus for an internal combustion engine includes: an ignition plug ( | 04-29-2010 |
20100229639 | MEASURING DEVICE IN A RADIOFREQUENCY IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE - A measuring device including: a supply circuit for radiofrequency ignition including a transformer including a secondary winding connected to at least one resonator having a resonance frequency higher than 1 MHz, and including two electrodes capable of generating a spark upon an ignition control; a measuring capacitor connected in series between the secondary winding and the resonator; a measuring circuit of ionization current of the combustion gases in a cylinder of the internal combustion engine associated with the resonator, the circuit being connected at terminals of the measuring capacitor; and/or a measuring circuit that measures a voltage at the resonator terminals upon an ignition control, the circuit being connected to terminals of the measuring capacitor. | 09-16-2010 |
20100257921 | INTERNAL-COMBUSTION-ENGINE IGNITION DIAGNOSIS APPARATUS - There is provided an ignition diagnosis apparatus that detects ignition abnormality in a multi-point-ignition internal combustion engine. An ion detection device provided in at least one of a plurality of ignition devices detects an electric quantity based on ions produced in a combustion chamber due to combustion of an inflammable fuel-air mixture; an ion occurring timing detection device detects an ion occurring timing, based on the electric quantity detected in a predetermined detection period; an ignition abnormality determination device compares the detected ion occurring timing with a comparison timing set in such a way as to be delayed in terms of the rotation angle of a crankshaft of the internal combustion engine with respect to an ignition timing set for the ignition device provided with the ion detection device, and determines that ignition performed by the ignition device provided with the ion detection device is abnormal, in the case where the ion occurring timing is delayed in terms of the rotation angle of the crankshaft with respect to the comparison timing. | 10-14-2010 |