| Patents for G01M 15 - Testing of engines (13,067) | 
|---|
| 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  |