PATENT CLAIM ANALYSIS

Application Number: 15742795
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["123", "406190"]

Abstract:
An electronic ignition system for an internal combustion engine comprises an ignition coil ( 2 ) provided with at least a primary winding ( 3 ) and a secondary winding ( 4 ), a switch ( 6 ) connected to the primary winding ( 3 ) and drivable in an open and/or closed position according to the value of a driving signal, a control unit ( 7 ) associated to the switch ( 6 ) and configured to drive it in open and/or closed position according to the value of the driving signal (G). Such system also comprises a voltage changing electronic element ( 8 ) connected to the electrical connection ( 5 ), operatively interposed between the electrical connection ( 5 ) and the primary winding ( 3 ), and configured to change the voltage value of the primary winding ( 3 ) according to the value of a control signal between at least a first (V 1 ) and a second (V 2 ) voltage value. The system also comprises a ionization measuring device ( 20 ) around said discharge gap ( 100 a ) of the spark plug ( 100 ) associated with the secondary winding ( 4 ) and arranged to detect a current value in the secondary winding ( 4 ) and to send a signal representative of said value to the control unit ( 7 ), wherein the control unit ( 7 ) is configured to activate said measuring device ( 20 ) upon the shutdown of the electric arc or spark.

Claim (Index 6):
A method for driving a plasma electronic ignition system for an internal combustion engine according to  claim 1 , wherein the combustion engine is provided with a drive shaft and at least one cylinder; said method comprising:\n charging said primary winding by closing said switch for a predetermined first time interval; powering said secondary winding by electromagnetic induction by opening said switch in order to generate a spark at said spark plug; subsequently opening and closing said switch in alternate succession to modulate a duration of said spark; detecting an angular position of the drive shaft for each revolution; opening said switch to cancel the voltage on said secondary winding by extinguishing said spark when said angular position corresponds to a preset reference value for said cylinder; detecting the ionization current as a result of said opening; further charging of said primary winding and further powering of said secondary winding via electromagnetic induction, if the ionization current detected is lower than a preset reference value or close to zero, in order to avoid the unburnt mixture reaching an exhaust pipe.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.90323
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15574067', '15574082', '15574077', '15751523', '14097852']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7557232432148532
- 35 USC 102 Novelty (BERT): 0.4987094387687829
- Combined Prediction Score: 0.7300218627702462
- Mean Citation Score: 276.30784400000005
- Max Citation Score: 313.12427
- Similarity Product: 265.81687285676065

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test