About 13 results
https://drivepatents.com/patents/1000079 · 25 Jul 2012
Provided is a method for determining a combustion state of a spark-ignited internal combustion engine including an ignition plug to ignite a fuel-air mixture by a plasma generated by a reaction between a spark discharge generated by a high voltage applied ...
https://drivepatents.com/patents/1005373 · 8 Feb 2012
The method involves measuring the temporal gradient of the primary current flowing on the primary side and dividing the temporal gradient into a spark burning phase (23) and a subsequent free-wheeling phase of a high voltage-transmitter. The temporal gradi...
https://drivepatents.com/patents/1066389 · 14 Jun 2006
According to the present invention, a glow plug (100) for a diesel engine is provided which includes a heating element (22), a semiconductor chip (61) that includes therein a power transistor, and a heat sink (50) .The heating element (22) is configured to...
https://drivepatents.com/patents/1076596 · 22 Jun 2005
A process for controlling an ignition time point in an Otto engine with direct injection and radiating combustion comprises determining the time point from operational parameters, namely an ionization signal displaying the ionizing condition of the fuel/ai...
https://drivepatents.com/patents/1093426 · 10 Sep 2003
An impulse noise suppression circuit (40) for an integrator-based ion current signal processing system includes a one-shot circuit (56) activated by a trigger signal (54) that is produced when a noise transient (44) in a bandpass filtered ion current signa...
https://drivepatents.com/patents/1102010 · 4 Sep 2002
The diagnosis circuit is for a motor vehicle engine ignition. Each cylinder has a spark plug connected via a potential cut off diode (20) connected with the secondary winding (14) of the ignition coil (12). The voltage (UZ) applied to the plug is compared ...
https://drivepatents.com/patents/1102373 · 21 Aug 2002
A device for ion current sensing in a combustion chamber of an internal combustion engine comprises a first electrode and a second electrode, said first and second electrode being arranged inside said combustion chamber of said engine, and a sensing circui...
https://drivepatents.com/patents/1105305 · 10 Apr 2002
In the ignition apparatus for internal combustion engine according to the invention, during a period when spark discharge voltage is detected by a waveform detecting unit 20 and an ignition coil 12 supplies the spark discharge voltage by use of ignition de...
Detecting knocking in an internal combustion engine with immediate normalization of an ionic current
https://drivepatents.com/patents/1107052 · 23 Jan 2002
A procedure for the recognition of pinking in the operation of an internal combustion engine has an raw ion current signal measured during the combustion stroke in the combustion chambers by an ion current sensor. From this, a value of the pinking intensit...
https://drivepatents.com/patents/1109898 · 26 Sep 2001
In a glow plug controller, a glow plug 10 fixed to an engine 30 comprises a heater and a ceramic substrate having an exposed portion 2d which is exposed to the interior of a combustion chamber 32. A glow plug control apparatus 100 causes ECU 105 to control...