PATENT CLAIM ANALYSIS

Application Number: 15922775
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["123", "491000"]

Abstract:
Methods and systems are provided for compression heating of air. In one example, a method may include, during an engine start and prior to a first combustion event, deactivating cylinder exhaust valves while spinning the engine electrically and unfueled until a threshold intake air temperature is reached, and alternately activating and deactivating the exhaust valves of one or more cylinders to maintain the intake air temperature above the threshold temperature after the first combustion event. In this way, a temperature of an air charge may be increased, resulting in increased fuel economy and decreased vehicle emissions.

Claim (Index 16):
A system, comprising:\n an engine including a plurality of cylinders coupled to a crankshaft, each cylinder including a piston, an intake valve, an exhaust valve, a spark plug, and a fuel injector coupled directly thereto; an electric motor coupled to the crankshaft receiving electrical power from a system battery; an intake manifold for supplying intake air to each cylinder via the intake valve; a first temperature sensor for estimating an engine temperature; a second temperature sensor for estimating an ambient temperature; a pressure sensor coupled to the intake manifold for measuring an intake air pressure; and a controller storing executable instructions in non-transitory memory that, when executed, cause the controller to:\n operate each of the plurality of cylinders in a compression heating mode for a number of engine cycles prior to an initial firing, the number of engine cycles determined based on the ambient temperature and a desired intake air temperature, while spinning the engine via the electric motor; and \n operate a subset of the plurality of cylinders in the compression heating mode and remaining cylinders in a combustion mode after the initial firing in response to conditions for compression heating met.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 90.0
- Lexical Diversity: 1.66667
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15382500', '15673329', '15611271', '10669480', '15759256']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7616113220839519
- 35 USC 102 Novelty (BERT): 0.4950617157334095
- Combined Prediction Score: 0.7349563614488976
- Mean Citation Score: 286.6081779999999
- Max Citation Score: 290.77374
- Similarity Product: 222.2604118339133

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

Dataset: test