Patents for G01M 15 - Testing of engines (13,067)
05/2002
05/30/2002US20020062685 Method of determining cam phase angle
05/29/2002EP1209458A1 Procedure for determining the noise level of an internal combustion engine
05/29/2002CN1085783C Sensor failure diagnosis method in fuel injection system and sensor failure diagnosis apparatus in fuel injection system
05/23/2002US20020059823 Intake negative pressure detection apparatus for multi-cylinder internal combustion engine
05/23/2002DE10056431A1 Resistance testing method of the air inlet tube on internal combustion engine, comprises measurement of pressures during low and high air flow and comparing difference to threshold value
05/22/2002EP0943083B1 Method and apparatus for inspecting spark plug while spark plug is installed in engine
05/21/2002US6392584 System and method for detecting and warning of potential failure of rotating and vibrating machines
05/21/2002US6389887 Process for the detection of damage to components of an engine
05/20/2002CA2326469A1 Engine emission analyzer
05/16/2002US20020056315 Combustion state diagnosing system and combustion state diagnosing method for diagnosing engine and recording medium
05/15/2002EP1205736A2 System and method for direct non-intrusive measurement of corrected airflow
05/15/2002EP1205657A2 Method of diagnosing leakage in an internal combustion engine common-rail injection system
05/14/2002US6389561 System and method for failure reporting and collection
05/14/2002US6389363 Process for calculating the torque of an electronic injection internal combustion engine
05/14/2002US6388444 Adaptive method for detecting misfire in an internal combustion engines using an engine-mounted accelerometer
05/14/2002US6387706 Accurate, robust, and low cost method which does not use consumable calibration gas
05/14/2002US6386020 Rotary sensor capable of high-precision detection of rotation angle transmitted from outside
05/07/2002US6382014 Real-time on-road vehicle exhaust gas modular flowmeter and emissions reporting system
05/02/2002US20020052698 Exhaust opacity measuring device
05/02/2002EP1200811A1 Method for detecting the state of a catalytic converter system
04/2002
04/30/2002US6378496 Fuel supply system for an internal combustion engine in a motor vehicle in particular
04/25/2002WO2001057381A3 Method for detecting faults in a multicylinder internal combustion engine
04/25/2002DE10134903A1 Motorrad mit einem System für eine Verbrennungsdiagnose und eine Klopfsteuerung Motorcycle with a system for diagnosis and a combustion knock control
04/18/2002WO2002031435A1 Closure measuring system
04/18/2002CA2425502A1 Closure measuring system
04/16/2002US6371096 Diagnosis system for wide-range air-fuel ratio sensor
04/16/2002US6370969 Inertia-testing method and system
04/16/2002US6370957 Vibration analysis for predictive maintenance of rotating machines
04/11/2002DE10049193A1 Method for testing motor vehicle engines during production, while they are being transported on specially adapted pallets
04/11/2002DE10049192A1 Production line method for testing and adjusting production units, especially motor vehicle engines, in which engines are tested, as far as possible, during transport between stations, to save considerable production time
04/10/2002EP1195593A1 Test installation for testing aircraft engines
04/09/2002US6367317 Algorithm for determining the top dead center location in an internal combustion engine using cylinder pressure measurements
04/04/2002DE10043864A1 Stratified charge combustion monitoring system uses optical emission spectrum
04/04/2002DE10010459C1 Verfahren zur Aussetzererkennung bei Verbrennungsmotoren Method for detecting misfires in internal combustion engines
04/02/2002US6363778 Engine misfire monitor
03/2002
03/28/2002WO2002025237A1 An arrangement and a method for the estimation of the point of time of the start of a combustion process of an internal combustion engine
03/28/2002US20020035866 Method and arrangement for sensor diagnosis
03/27/2002CN2483694Y Test desk for detecting flow from each orifice of multiorifice fuel spray nozzle used for diesel engine
03/20/2002EP1189050A1 Pressure detector for the cylinder head of an internal-combustion engine, and a cylinder head of an internal-combustion engine provided with such a pressure detector
03/19/2002US6359682 Fluid flow velocity measuring system for internal combustion engine
03/19/2002US6357288 Failure diagnosis system for evaporation control system
03/19/2002US6357287 System and method for detecting engine misfire using frequency analysis
03/19/2002US6357225 Failure diagnosing device for exhaust gas purifying apparatus
03/14/2002US20020029622 Optical test engine, in particular for combustion parameters measurements
03/13/2002CN1080880C Method for testing pressure relief
03/13/2002CN1080879C Determinating method for pressure leakage
03/12/2002US6354149 Method for determining the progression of the load torque in an internal-combustion engine
03/07/2002US20020026825 Stroke discriminator for an internal combustion engine
03/07/2002US20020026822 Vehicle gas emission sampling and analysis assembly
03/06/2002EP1184655A2 Stroke discriminator for an internal combustion engine
03/06/2002CN1338625A Automotive exhaust analyzing device
02/2002
02/28/2002DE10036395A1 Project development employs diverse local electronic data processors connected internationally by data network to central server, with activation of data processor during working intervals
02/27/2002EP1181446A1 Method and arrangement for sensor diagnosis
02/27/2002EP1034416B1 Method for evaluating the march of pressure in a combustion chamber
02/21/2002US20020021120 Method and device for evaluating an ion current sensor signal in an internal combustion engine
02/21/2002US20020020212 Method for determining a weak cylinder in an internal combustion engine
02/21/2002US20020020211 Method for testing a completely or partially assembled combustion engine
02/20/2002EP1056999B1 Process for detecting a misfire in an internal combustion engine and system for carrying out said process
02/20/2002CN1079534C Vibration receiving and mfg. method therefor
02/12/2002US6347285 Device for collecting analogue measurement signals for the acoustic diagnosis of test pieces
02/07/2002US20020016666 Misfire detection apparatus for internal combustion engine
02/07/2002US20020014113 Combustion state diagnosing system and combustion state diagnosing method for diagnosing engine and recording medium
02/06/2002EP0754326B1 Adaptive profile correction for rotating position encoders in reciprocating engines
02/05/2002US6343500 Engine combustion condition detecting apparatus equipped with malfunction diagnosing apparatus
01/2002
01/31/2002WO2001065225A3 Engine torque sensor
01/31/2002US20020011098 Lubrication system malfunction warning system for marine propulsion units
01/31/2002DE10133944A1 Diesel On-Board-Diagnostic-II system for detecting degradation in catalyser activity indicates when current hydrocarbon conversion value exceeds target emission capability threshold
01/30/2002EP1176412A2 Vehicle emission sampling and analysis assembly
01/30/2002EP1176411A1 Optically improved engine for testing, particularly for measuring combustion parameters
01/24/2002US20020007818 Motorcycle having a system for combustion diagnostics
01/24/2002US20020007670 Engine torque-detecting method and an apparatus therefore
01/24/2002US20020007668 Method of testing assembled internal combustion engine
01/24/2002DE10034124A1 Test sensor mount for combustion engine tests uses flexible tube to position sensor
01/23/2002CN2473612Y Automation test integrated platform for engine
01/17/2002WO2001096146A8 Voice-guided self-scanner for performing comparison analysis, diagnosis and preventive maintenance of vehicle using detected data of vehicle
01/16/2002EP1171701A1 Identification of diesel engine injector characteristics
01/15/2002US6338326 Process and apparatus for detecting exhaust-gas-impairing and catalyst-damaging misfires in the case of internal-combustion engines
01/10/2002US20020004694 Modular automotive diagnostic system
01/10/2002US20020004572 Resin molded article for optical product and light transmitting plate comprising the same
01/10/2002US20020002877 Engine torque sensor
01/10/2002US20020002858 Misfire state discrimination system of internal combustion engine
01/09/2002EP1169629A1 Method for engine misfire detection in multi-cylinder internal combustion engines with multi-cylinder spark ignition
01/08/2002US6336440 Misfire detection method for a piston combustion engine with electromagnetic fuel charge valve
01/08/2002CA2212964C Dynamometer torsional damping apparatus and method
01/02/2002CN1077211C Process for recognizing irregularities in combustion processes in multiple cylinder diesel internal combustion engine
01/01/2002US6334357 Internal combustion engine misfire detection method
12/2001
12/27/2001US20010054309 Exhaust gas characteristic detecting apparatus for internal combustion engine
12/25/2001US6334085 Data processing unit for construction machine
12/25/2001US6332352 Engine torque-detecting method and an apparatus therefor
12/20/2001WO2001096146A1 Voice-guided self-scanner for performing comparison analysis, diagnosis and preventive maintenance of vehicle using detected data of vehicle
12/20/2001US20010053961 Method for downloading and managing test tool of test system
12/20/2001US20010052337 Signal processing device for piezoelectric sensor
12/19/2001EP0781374B1 Electronic engine load and revolution sensing device
12/18/2001US6330877 Apparatus and method for enabling the calibration and/or monitoring of a combustion process in a combustion engine
12/12/2001EP1162442A1 Signal processing device for piezoelectric sensor with differentiating and integrating circuits
12/12/2001CN2465170Y Correction device for test of high pressure oil pump of diesel engine
12/11/2001US6330587 Real-time multiprocessing computer infrastructure for automated testing
12/06/2001US20010049579 Diagnostic system for engine
12/06/2001US20010047683 Method and apparatus for detecting spark failure based on the number of crankshaft revolutions
12/06/2001US20010047681 Process for cylinder-selective leakage testing of the combustion chambers in a combustion engine