PATENT CLAIM ANALYSIS

Application Number: 15745659
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["073", "114260"]

Abstract:
Disclosed is a method for determining the state of rotation of a camshaft of a vehicle engine, notable in that the method for determining the state of rotation of the camshaft determines that the state of rotation of the camshaft is “in the process of stalling”, corresponding to an intermediate state of rotation, when the time elapsed since the last detection of a camshaft wheel tooth-front by the sensor exceeds Tcam_cal, Tcam_cal being defined as the theoretical length of time needed for the camshaft wheel to cover an angular distance equal to the maximum angular distance separating two successive camshaft wheel tooth-fronts at a camshaft rotational speed corresponding to a predetermined low engine speed higher than the minimum engine speed tolerated by the engine.

Claim (Index 1):
A method for determining the state of rotation of a camshaft of a vehicle engine, said engine having an engine speed and a minimum tolerated engine speed and said engine comprising:\n a crankshaft, having a state of rotation, means of detecting the state of rotation of the crankshaft, notably as being able to be \u201cstopped\u201d, a camshaft, a camshaft wheel coupled to said camshaft, said camshaft wheel comprising a plurality of teeth having a degree of angle separating two successive tooth-fronts the highest value of which is referred to as the maximum degree of angle, a sensor provided facing the camshaft wheel and able to detect the passage of any camshaft wheel tooth-front past said sensor, said camshaft having a state of rotation wherein said camshaft is turning or is not turning, said camshaft therefore being able to exhibit the \u201crotating\u201d or \u201cstopped\u201d states of rotation, wherein, with\n the engine not having been synchronized, and \n the crankshaft being detected as being \u201cstopped\u201d or the engine not having begun a synchronization process, \n and the camshaft wheel initially exhibiting the \u201crotating\u201d state of rotation, \n said method of determining the state of rotation of the camshaft determines that the state of rotation of the camshaft is:\n \u201crotating\u201d as long as the time elapsed since the last detection of a camshaft wheel tooth-front by the sensor has not reached the time Tcam_cal, Tcam_cal being defined as the theoretical length of time needed for the camshaft wheel to cover an angular distance equal to the maximum angular distance separating two successive camshaft wheel tooth-fronts at a camshaft rotational speed corresponding to a predetermined low engine speed higher than the minimum engine speed tolerated by said engine, \n \u201cstopped\u201d when the time elapsed since the last detection of a camshaft wheel tooth-front by the sensor becomes higher than the time Tcam, Tcam being defined as the theoretical length of time needed for the camshaft wheel to cover an angular distance equal to the maximum angular distance separating two successive camshaft wheel tooth-fronts at a camshaft rotational speed corresponding to the minimum engine speed tolerated by said engine, \n \u201cin the process of stalling\u201d, corresponding to an intermediate state of rotation, when the time elapsed since the last detection of a camshaft wheel tooth-front by the sensor becomes higher than Tcam_cal, with Tcam_cal<Tcam, while being lower than Tcam, \n and wherein said method of determining the state of rotation of a camshaft also determines that the state of rotation of a camshaft is \u201cstopped\u201d when said method of determining the state of rotation of the camshaft has determined that the state of rotation of a camshaft is \u201cin the process of stalling\u201d, and at the same time:\n the engine has not been synchronized, \n the crankshaft has been detected as being \u201cstopped\u201d or the engine not having begun a synchronization process, \n the camshaft wheel initially exhibiting the \u201crotating\u201d state of rotation.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.07937
- Patent Class: 73.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16062363', '15769984', '14727356', '14244154', '11074961']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.699620570496042
- 35 USC 102 Novelty (BERT): 0.4720093415601238
- Combined Prediction Score: 0.6768594476024501
- Mean Citation Score: 199.730336
- Max Citation Score: 216.39839
- Similarity Product: 183.4996026504301

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

Dataset: test