PATENT CLAIM ANALYSIS

Application Number: 15759256
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["123", "406470"]

Abstract:
A PCM ( 100 ) selects one of a CI mode or an SI mode based on the operating conditions of the engine ( 1 ). In the CI mode, the engine ( 1 ) is operated by compression ignition combustion. In the SI mode, the engine ( 1 ) is operated by spark ignition combustion. if, while the engine ( 1 ) is being operated in the CI mode, a determination is made that an estimated value (Tc) of the catalyst temperature is lower than or equal to a warming start temperature (Ts), the PCM ( 100 ) further performs first warming control to assign four cylinders ( 18 ) as CI and SI cylinders, which perform the compression ignition combustion and the spark ignition combustion, respectively, such that the four cylinders ( 18 ) alternately perform the compression ignition combustion and the spark ignition combustion in accordance with the order of combustion of the cylinders.

Claim (Index 1):
An engine control device comprising:\n an engine body including a plurality of cylinders; fuel injection valves configured to supply fuel separately into the individual cylinders; spark plugs attached to the cylinders, respectively, to each ignite an air-fuel mixture in an associated one of the cylinders; a catalyst connected through an exhaust passage to the cylinders and functioning to purify exhaust gas discharged from each cylinder; and a controller configured to control the fuel injection valves and the spark plugs to operate the engine body, wherein the controller selects one of a first mode in which the engine body is operated by compression ignition combustion to autoignite the air-fuel mixture in the cylinders, or a second mode in which the engine body is operated by spark ignition combustion with the air-fuel mixture in the cylinders ignited, and if, while the engine body is being operated in the first mode, a determination is made that a temperature of the catalyst is lower than or equal to a predetermined temperature, the controller performs warming control to assign the cylinders as CI and SI cylinders, which perform the compression ignition combustion and the spark ignition combustion, respectively, such that the cylinders alternately perform the compression ignition combustion and the spark ignition combustion in accordance with the order of combustion of the cylinders.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.54412
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13865939', '14426010', '14181514', '14181505', '13971769']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7761776910434167
- 35 USC 102 Novelty (BERT): 0.5146620686870133
- Combined Prediction Score: 0.7500261288077763
- Mean Citation Score: 334.132558
- Max Citation Score: 359.1444
- Similarity Product: 336.746853470993

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