Patents for G01M 15 - Testing of engines (13,067) |
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05/12/1998 | US5750886 Engine emissions analyzer with diagnostic |
05/12/1998 | CA2153606C Catalyst deterioration-detecting device for internal combustion engine |
05/07/1998 | DE19645187A1 Verfahren und Vorrichtung zur Messung von Laufschaufelschwingungen Method and apparatus for the measurement of rotor blade oscillations |
05/05/1998 | US5747681 Combustion state-detecting system for internal combustion engines |
05/05/1998 | US5747679 Method for detecting combustion misfires |
05/05/1998 | US5747678 Method for detecting crankshaft oscillations |
04/30/1998 | WO1998017989A2 Automotive engine misfire detection system including a bit-serial based recurrent neuroprocessor |
04/29/1998 | EP0563066B2 Diagnostic device for detecting defective combustion in an internal combustion engine |
04/28/1998 | US5744705 Method and apparatus for engine testing |
04/28/1998 | US5744698 Accelerometric sensor for measuring the piston knock of an internal combustion engine |
04/28/1998 | US5743233 Method for detecting knocking |
04/22/1998 | EP0837307A1 Optical sensor for combustion chamber |
04/22/1998 | EP0837234A1 Method and system for estimating a midbed temperature of a catalytic converter |
04/22/1998 | CN1179826A Misfire detection dependent on intake air charge fluctuations |
04/21/1998 | US5741964 Apparatus and method for detecting abnormality of air flow meter |
04/21/1998 | US5741958 Method for detecting and documenting exhaust-gas relevant malfunctions of a motor vehicle having an internal combustion engine with the aid of on-board means |
04/16/1998 | DE19641916A1 Misfiring identification method by evaluating fluctuations in speed e.g. for combustion engine |
04/16/1998 | DE19580587C2 Device for detecting type of internal combustion engine fuel |
04/15/1998 | EP0836075A1 Method for processing a plurality of signals |
04/14/1998 | US5739418 Vibration pick-up and method of producing the same |
04/14/1998 | US5739413 Forced dilution system and method for emissions measurement systems |
04/14/1998 | US5737917 Device for judging deterioration of catalyst of engine |
04/08/1998 | EP0834060A1 Device for knock recognition and control of a combustion engine |
04/08/1998 | EP0679221B1 Electronic counting circuit for the timed measurement of a digital signal |
04/07/1998 | US5737711 Diagnosis system for motor vehicle |
04/07/1998 | US5736634 Apparatus and method for detecting combustion conditions of an internal combustion engine |
04/07/1998 | US5736633 For distinguishing a cylinder identification signal pulse |
04/07/1998 | US5735121 Air pump abnormality-detecting system for internal combustion engines |
04/07/1998 | US5735120 Device for judging the deterioration of a catalyst of an engine |
04/02/1998 | DE19742627A1 Automobile travel characteristics evaluation system |
04/01/1998 | EP0833140A2 Diagnostic system |
03/31/1998 | US5734101 Device for detecting lean burn drive mode for a vehicle |
03/31/1998 | US5734100 Device for diagnosing misfiring of a multi cylinder engine |
03/26/1998 | DE19637094A1 Verfahren zum Bestimmen von Verbrennungsaussetzern A method for determining misfire |
03/25/1998 | EP0831222A2 An abnormality detecting apparatus for an air temperature sensor |
03/25/1998 | EP0831220A2 Combustion control device for internal combustion engine |
03/24/1998 | US5732382 Method for identifying misfire events of an internal combustion engine |
03/19/1998 | WO1998011416A1 Method of determining misfiring |
03/19/1998 | DE19737396A1 Glow-plug for diesel engine |
03/17/1998 | US5729452 Method and system for diagnosing and reporting failure of a vehicle emission test |
03/17/1998 | US5728941 Misfire detecting apparatus using difference in engine rotation speed variance |
03/17/1998 | US5728932 Of an internal combustion engine |
03/12/1998 | WO1998010300A1 Process for inspecting the components of a system in a motor vehicle |
03/11/1998 | EP0828153A1 Method and device for secure measurement and processing, as well as the checking of measurement data |
03/11/1998 | CN2276153Y Step brass allowance measuring means |
03/10/1998 | US5726352 Method of detecting misfires in a multicylinder internal combustion engine |
03/05/1998 | DE19635839A1 Verfahren zum Prüfen des Bauteils eines Systems in einem Kraftfahrzeug A method for testing of the component of a system in a motor vehicle |
02/24/1998 | US5720260 Method and system for controlling combustion stability for lean-burn engines |
02/24/1998 | CA2184224A1 Forced dilution system and method for emissions measurement systems |
02/19/1998 | DE19734680A1 Selectively testing for leakage in combustion chambers of cylinders of IC engine |
02/17/1998 | US5719330 Automotive igniton module diagnostic |
02/12/1998 | WO1998005936A1 Internal combustion engine misfire detection method |
02/12/1998 | DE19734714A1 Vorrichtung und Verfahren zum Testen der Leistung von Verbrennungsmotoren Apparatus and method for testing the performance of internal combustion engines |
02/11/1998 | EP0823622A2 Apparatus and method for detecting misfires in internal combustion engine |
02/11/1998 | EP0823546A1 A device for determining deterioration of a catalyst for an engine |
02/11/1998 | EP0823046A1 Misfire detection dependent on intake air charge fluctuations |
02/10/1998 | US5717595 Integrated automated vehicle analysis |
02/10/1998 | US5717133 In an internal combustion engine |
02/10/1998 | US5715791 Cylinder discriminating device for internal combustion engine |
02/10/1998 | US5715780 Cam phaser position detection |
02/10/1998 | US5715726 Method and system for the diagnosis of idling speed control system |
02/10/1998 | US5715676 Method and apparatus for monitoring the starting behavior of a catalytic conversion system in an automotive vehicle |
02/05/1998 | WO1998004990A1 Modified trimmed mean filtering for misfire detection |
02/03/1998 | US5714673 Method and apparatus for monitoring engine control sensors |
01/29/1998 | WO1998003846A1 Method of testing assembled internal combustion engine |
01/28/1998 | EP0763194A4 Misfire detection method and apparatus |
01/28/1998 | EP0754326A4 Adaptive profile correction for rotating position encoders in reciprocating engines |
01/28/1998 | EP0721627A4 Apparatus and method for variable windowed peak detection in a misfire detection system |
01/27/1998 | US5712433 Exhaust gas measuring apparatus |
01/27/1998 | US5712424 Method and apparatus for measuring diesel engine cylinder pressure |
01/27/1998 | US5711272 Fuel property detection for an engine using engine speed |
01/21/1998 | EP0819925A2 A preignition detection apparatus |
01/21/1998 | EP0819215A1 Method for carrying out an ionic current measurement in a combustion engine using a lean fuel mixture |
01/20/1998 | US5711021 Method for graphically displaying vehicle test data |
01/20/1998 | US5710715 For detecting abnormalities by analyzing a vibration waveform |
01/20/1998 | US5710512 Structure and production process for secondary voltage detector for engine |
01/20/1998 | US5710375 Internal combustion piston engine |
01/20/1998 | US5709192 Method for determining the differences between non-uniform cylinder torque moments in an internal combustion engine and application of the method |
01/15/1998 | WO1998001728A1 Device for collecting analogue measurement signals for the acoustic diagnosis of test pieces |
01/13/1998 | US5708200 Method for sensing faulty combustion in an internal combustion engine |
01/13/1998 | US5706653 Secondary air supplying apparatus for internal combustion engine |
01/07/1998 | EP0816820A2 Engine emissions analyzer with diagnostic |
01/06/1998 | US5705742 System and method for testing an engine |
12/31/1997 | WO1997049978A1 Method and system for determining air/fuel ratio of an engine's combustion process from its exhaust emissions |
12/31/1997 | WO1997049977A1 Model-based fault detection system for electric motors |
12/30/1997 | US5703777 Parametric emissions monitoring system having operating condition deviation feedback |
12/30/1997 | US5703283 Detrending engine positional data for rotating position encoders |
12/30/1997 | US5701866 Malfunction diagnosis device for engine speed controller |
12/29/1997 | EP0814257A2 A method and equipment for carrying out tests on a heat engine when cold and an engine designed to be tested by this method |
12/24/1997 | WO1997048894A1 Method and device for detecting misfiring of internal combustion engines |
12/23/1997 | US5701077 Misfire detecting device for gasoline internal combustion engine |
12/23/1997 | US5699775 Failure diagnosis device of fuel evaporation preventive apparatus |
12/18/1997 | WO1997047875A1 A method for detecting an ion current |
12/17/1997 | EP0813050A2 Arrangement for identifying a cylinder in a multicylinder combustion engine |
12/16/1997 | US5699253 Nonlinear dynamic transform for correction of crankshaft acceleration having torsional oscillations |
12/16/1997 | US5699252 Error correction in measures of speed, acceleration, misfire detection and roughness |
12/16/1997 | US5698780 Method and apparatus for detecting a malfunction in an intake pressure sensor of an engine |
12/11/1997 | DE4042567C2 Faulty ignition detector for cylinder of IC engine |
12/10/1997 | EP0811833A1 Pressure sensor for liquid or gas medium |
12/04/1997 | DE19718766A1 Abnormality detection device for detecting leakage in motor vehicle fuel tank ventilation control system |