| Patents for G01M 15 - Testing of engines (13,067) |
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| 03/25/1999 | DE19821136A1 Arrangement for analyzing motor vehicle exhaust gas |
| 03/25/1999 | DE19741820A1 Evaluating combustion chamber pressure |
| 03/24/1999 | EP0903486A2 Diagnostic apparatus and method for a combustion sensor feedback system |
| 03/18/1999 | WO1999013310A1 Method for detecting an abnormal disturbance of an internal combustion engine torque |
| 03/16/1999 | US5884202 Modular wireless diagnostic test and information system |
| 03/10/1999 | EP0901008A1 Method of generating correction tables for misfire detection using neural networks |
| 03/10/1999 | EP0900927A2 System for diagnosing and controlling high-pressure fuel system for in-cylinder fuel injection engine |
| 03/09/1999 | US5880361 Abnormality detecting apparatus for an air temperature sensor |
| 03/04/1999 | WO1999010751A1 Fuel injection diagnostic control device |
| 03/04/1999 | WO1999010728A2 Device for analysing exhaust emissions from motor vehicles |
| 03/04/1999 | DE19737652A1 Cylinder misfiring recognition arrangement for combustion engine |
| 03/04/1999 | CA2306483A1 Device for the analysis of motor vehicles exhaust emissions |
| 03/04/1999 | CA2302229A1 Fuel injection diagnostic control device |
| 03/03/1999 | EP0899442A2 Diagnostic system for the fuel system of an internal combustion engine |
| 03/02/1999 | US5878366 Method for detecting a powerloss condition of a reciprocating internal combustion engine |
| 02/25/1999 | DE19735780A1 Method to determine gross engine power of motor vehicle on rolling test bed |
| 02/24/1999 | EP0898070A2 Method for identifying the combustion stroke of a selected cylinder during the starting phase of a combustion engine |
| 02/23/1999 | US5875420 Determining machine operating conditioning based on severity of vibration spectra deviation from an acceptable state |
| 02/23/1999 | US5875411 Method of detecting combustion misfires by evaluating RPM fluctuations |
| 02/17/1999 | EP0897061A2 Misfire detection method for internal combustion engine having two spark plugs per cylinder |
| 02/16/1999 | US5872312 Method for recognizing defective ignition or injection system in internal combustion engines |
| 02/16/1999 | US5872310 Method for maintaining clean surfaces for valve seat faces of internal combustion engine |
| 02/16/1999 | US5870992 Combustion control device for internal combustion engine |
| 02/09/1999 | US5870688 Misfire diagnostic system for internal combustion engine |
| 02/09/1999 | US5869752 Engine degradation detector |
| 02/09/1999 | US5869743 To analyze exhaust gas emissions from an ic engine exhaust delivery system |
| 02/03/1999 | EP0895076A2 Mass fraction burned and pressure estimation through spark plug ion sensing |
| 02/03/1999 | EP0894976A2 Combustion state detector for an internal combustion engine |
| 02/03/1999 | EP0894254A1 Method for calculating the torque of an internal combustion engine |
| 02/02/1999 | US5867115 Signal processing circuit with offset compensation |
| 02/02/1999 | CA2051876C Apparatus for detecting flameout of internal combustion engine |
| 01/21/1999 | DE19831310A1 Internal combustion engine fuel control system |
| 01/21/1999 | DE19830213A1 Spark plug for IC engine |
| 01/21/1999 | DE19827221A1 Burn control for IC engine |
| 01/20/1999 | EP0892262A2 Engine degradation detector |
| 01/20/1999 | EP0708883B1 Device for detecting a pulsating quantity |
| 01/20/1999 | CN1205772A Process for detecting cyclical fluctuations in combustion in internal combustion engine |
| 01/19/1999 | US5862507 Real-time misfire detection for automobile engines with medium data rate crankshaft sampling |
| 01/19/1999 | US5862506 Modified trimmed mean filtering for misfire detection |
| 01/19/1999 | US5862505 Misfire discriminating method and apparatus for an engine |
| 01/19/1999 | US5861553 Method of detecting combustion misfires |
| 01/19/1999 | US5861551 Combustion state detecting apparatus for an internal-combustion engine |
| 01/13/1999 | EP0890021A1 Process for recognizing irregularities in combustion processes in a multiple cylinder diesel internal combustion engine |
| 01/13/1999 | EP0739448B1 Process for monitoring the running of an internal combustion engine to detect misfiring |
| 01/12/1999 | US5857325 Electrical load abnormality-detecting system for automotive vehicles |
| 01/07/1999 | EP0755482B1 Method for sensing faulty combustion in an internal combustion engine |
| 01/07/1999 | DE19828153A1 Combustion state detector for combustion engine |
| 01/07/1999 | DE19727669A1 Monitoring function throttle flap of IC engine |
| 01/05/1999 | US5856922 Process and device for measuring the torque of an internal combustion heat engine |
| 12/30/1998 | WO1998059239A1 Method and device for determining the mass content of pollutants in a motor vehicle thermal engine exhaust gases |
| 12/30/1998 | WO1998059230A1 Diagnostic module for testing the tightness of a container |
| 12/30/1998 | EP0887634A2 Combustion state diagnosing system and combustion state diagnosing method for diagnosing engine and recording medium |
| 12/24/1998 | DE19726559A1 Diagnosemodul Diagnostic module |
| 12/22/1998 | US5852789 Engine analyzer with pattern library linked to vehicle ID and display scope configuration |
| 12/22/1998 | US5852234 Knocking detecting sensor |
| 12/22/1998 | US5851376 Catalyst degradation determination apparatus and method |
| 12/22/1998 | US5851007 Engine test stand kit |
| 12/17/1998 | DE19826714A1 Knock detector for internal combustion engine |
| 12/09/1998 | EP0882887A2 Apparatus and method for controlling internal combustion engine during testing of hybrid vehicle |
| 12/08/1998 | US5848372 Apparatus for detecting trouble states in engine |
| 12/08/1998 | US5845625 Defect diagnosing apparatus of evaporation purge system |
| 12/03/1998 | DE19823594A1 Optical knock detector for IC engine |
| 12/02/1998 | EP0881478A1 Method and device for the determination of the indicated mean effective pressure of an internal combustion engine |
| 12/02/1998 | EP0764263A4 Fiberoptic sensor using tapered and bundled fibers |
| 12/01/1998 | US5844126 Method and device for determining the speed of propagation of a temperature wave front in a gas |
| 12/01/1998 | CA2058741C Electronic control module |
| 11/26/1998 | WO1998053198A1 Method for identifying knocking combustion in an internal combustion engine with an alternating current ignition system |
| 11/26/1998 | DE19822908A1 Fault diagnosis system for motor vehicle engines |
| 11/26/1998 | DE19822800A1 Timing control for internal combustion engine |
| 11/26/1998 | DE19822296A1 Knock detection arrangement for IC engine |
| 11/25/1998 | EP0880022A2 Vehicle mass emission measurement |
| 11/25/1998 | EP0880019A2 A method for predicting tire performance on rain groove roadways |
| 11/25/1998 | EP0880018A2 Misfire detecting device for a multi-cylinder internal combustion engine and misfire detecting method |
| 11/24/1998 | US5841025 Misfire detection method and apparatus |
| 11/19/1998 | DE19821722A1 Ion current detection device for combustion engine |
| 11/19/1998 | DE19720535A1 Verfahren zur Erkennung klopfender Verbrennung bei einer Brennkraftmaschine mit einer Wechselspannungszündanlage Method for detecting knocking combustion in an internal combustion engine with an alternating current |
| 11/18/1998 | EP0853794A4 Modified trimmed mean filtering for misfire detection |
| 11/18/1998 | CN1199166A Tension measuring apparatus and method for piston ring |
| 11/17/1998 | US5837890 Jet engine test cell structure |
| 11/17/1998 | US5837887 In an internal combustion engine |
| 11/17/1998 | US5836285 Device for controlling knocking in an internal combustion engine |
| 11/12/1998 | DE19818470A1 Knocking detection device for IC engine |
| 11/12/1998 | DE19718172A1 Determining compression pressure in supercharged internal combustion engine |
| 11/11/1998 | EP0877239A1 Tension measuring apparatus and method for piston ring |
| 11/10/1998 | US5835871 Method and system for diagnosing and reporting failure of a vehicle emission test |
| 11/10/1998 | US5835682 Dynamical system analyzer |
| 11/10/1998 | US5834636 Engine control apparatus |
| 11/10/1998 | US5832721 Method and system for estimating a midbed temperature of a catalytic converter in an exhaust system having a variable length exhaust pipe |
| 11/04/1998 | EP0874981A1 Method of controlling ignition in a multicylinder internal combustion engine |
| 11/03/1998 | US5832404 Device for detecting misfiring in a multi-cylinder internal combustion engine |
| 11/03/1998 | US5831179 Combination dynamometer and torsional damping apparatus |
| 11/03/1998 | US5831155 Apparatus and method for simulating rocket-to-ramjet transition in a propulsion system |
| 11/03/1998 | US5829416 Fuel-vapor treating apparatus |
| 11/03/1998 | US5829320 Method for torsional damping between a dynamometer and prime mover |
| 10/27/1998 | US5828976 Detector device for combustion state in internal combustion engine |
| 10/27/1998 | US5827954 For degreeing a camshaft of an internal combustion engine |
| 10/27/1998 | US5826566 Evaporative fuel-processing system for internal combustion engines |
| 10/24/1998 | CA2235641A1 A method of predicting tire performance on rain groove roadways |
| 10/22/1998 | DE19811628A1 Determining combustion state of internal combustion engine |
| 10/20/1998 | US5826008 System and method for failure reporting and collection |