Matches 1 - 19 out of 19


Match Document Document Title
US20100294027 MISFIRE DETECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE  
Structured with a rotational fluctuation measuring section 51 measuring a rotational fluctuation amount DTdi, a misfire judging section 55 judging a misfire by comparing the rotational fluctuation...
US20050039526 Electronic engine control with reduced sensor set  
An engine control apparatus is disclosed for determining crankshaft position, engine phase, engine loading, and intake air mass of an internal combustion engine (10) through monitoring intake air...
US20110066358 PATTERN RECOGNITION FOR RANDOM MISFIRE  
A control system includes a jerk determination module and a misfire confirmation module. The jerk determination module determines a jerk of a crankshaft associated with a firing event in an...
US20110040475 MISFIRE DETECTION THROUGH COMBUSTION PRESSURE SENSOR  
A method is provided for controlling an internal combustion engine. The method includes, but is not limited to the step of measuring in-cylinder pressure of an expansion phase of a combustion...
US20150241306 DETECTING MISFIRING IN A GASEOUS FUEL OPERATED INTERNAL COMBUSTION ENGINE  
A method of detecting an incomplete combustion, such as a misfire, in an internal combustion engine operating at least partly on a gaseous fuel, includes: receiving pressure data corresponding to...
US20150226642 IN-CYLINDER PRESSURE DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE  
This invention determines whether or not an internal combustion engine is not performing combustion. If the determined result is that the internal combustion engine is not performing combustion, a...
US20130125633 METHOD OF DETECTING MISFIRE IN AN INTERNAL COMBUSTION ENGINE  
A method of detecting misfire in an internal combustion engine comprises: sensing a temporal signature of a lateral displacement of the engine, performing a spectral analysis of the temporal...
US20090120175 FILTERING FOR ROUGH ROAD DETECTION  
An engine misfire system comprises a rough road detection module and a misfire detection module. The rough road detection module selectively generates a rough road indicator based upon a...
US20140007664 METHOD AND APPARATUS FOR DIAGNOSING ENGINE FAULT  
According to a method and an apparatus of the present invention for diagnosing a fault of an engine, a cranking rotation state is created by rotating a crank shaft while explosions in each...
US20130060451 ABNORMAL COMBUSTION DETECTION APPARATUS AND CONTROL UNIT OF INTERNAL COMBUSTION ENGINE  
An abnormal combustion detection apparatus detects an abnormal combustion of an internal combustion based on a vibration waveform from a vibration sensor attached to the internal combustion...
US20090049895 Method and engine control unit to detect combustion misses in part-engine operation  
In a method for detecting combustion misses in cylinders of a combustion engine in part-engine operation in which only some of the cylinders are operated by the injection of fuel, a positional...
US20070084442 Engine combustion state determining apparatus and method  
An ECU detects heat generation center of gross heat value. A combustion state of an engine is determined based on the heat generation center. When a deviation between the average heat generation...
US20090234562 SYSTEM AND METHOD FOR DETECTING CYLINDER MISFIRE  
A system for detecting individual cylinder misfire in a multiple cylinder internal combustion (IC) engine having exhaust gas recirculation (EGR). The system includes: a device for predicting EGR...
US20090229354 METHOD FOR DETECTING A MISFIRE AND CORRESPONDING DEVICE  
Method of detecting a misfire in an internal combustion engine provided with at least two cylinders and a crankshaft, includes: a. producing a measurement signal linked to the crankshaft travel...
US20130340512 Methods and Apparatus for Engine Analysis Using Internal Electrical Signals  
A method of analyzing an engine for misfire activity includes receiving an electrical signal associated with a plurality of cycles of the engine, identifying energy spikes in the electrical signal...
US20090063025 METHOD AND DEVICES EQUIPPED WITH A HIGH-PASS FILTER FOR APPRAISAL OF THE KNOCKING IN EVERY CYLINDER OF AN INTERNAL COMBUSTION ENGINE  
The invention relates to the field of methods and devices for evaluating the knocking inside every cylinder of an internal combustion engine by making advantageous use of the ionisation current...
US20090158829 INTERNAL COMBUSTION ENGINE SYSTEM AND ENGINE MISFIRE DETECTION METHOD FOR INTERNAL COMBUSTION ENGINE  
The internal combustion engine system of the invention calculates a time constant of a high pass filter for eliminating a resonance component of a damper as a distortional element from a rotation...
US20110313637 COMBUSTION APPARATUS AND METHOD FOR COMBUSTION CONTROL  
A combustion apparatus (water heater) includes a combustion means (burner) combusting fuel, at least two flame detecting means (flame rods) detecting whether there is a flame or not in the...
US20100206125 PROCEDURE FOR DETERMINING AT LEAST ONE MISFIRING CYLINDER OF A COMBUSTION ENGINE, CONTROL UNIT AND MOTOR VEHICLE DRIVE TRAIN  
At a procedure for determining at least one misfiring cylinder (1, 2, 3, 4) of a combustion engine (12) with an even number n of at least four cylinders (1, 2, 3, 4), whereby at least each...

Matches 1 - 19 out of 19