PATENT CLAIM ANALYSIS

Application Number: 15954668
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["123", "435000"]

Abstract:
After start-up of an internal combustion engine, a CPU divides a request injection amount, which is used to control the air-fuel ratio to a target value, into an amount of fuel injected by a port injection valve and an amount of fuel injected by a direct injection valve based on rotation speed and a load ratio. When the amount of fuel injected by the port injection valve changes from zero to greater than zero, the CPU decreases the actual fuel injection amount from the divided fuel injection amount then gradually increases to the divided fuel injection amount. When the amount of fuel injected by the port injection valve is gradually increased, the amount of fuel injected by the direct injection valve is increased from the divided fuel injection amount so that the request injection amount of fuel is injected by the port injection valve and the direct injection valve.

Claim (Index 1):
A controller for an internal combustion engine, wherein\n a port injection valve that injects fuel into an intake passage and a direct injection valve that injects fuel into a combustion chamber each serve as a fuel injection valve that supplies fuel into a cylinder, and the internal combustion engine includes at least the port injection valve, the controller performs a first fuel injection process injecting fuel by operating the port injection valve, a second fuel injection process including one of a process operating the port injection valve when the first fuel injection process is completed and an intake valve is open and a process operating the direct injection valve, a division process variably setting a division ratio, which divides a request injection amount of the internal combustion engine into a first request amount for the first fuel injection process and a second request amount for the second fuel injection process, based on an operating point of the internal combustion engine, and a gradual increase process, wherein when the first request amount corresponding to the division process does not exist, the gradual increase process specifies the first request amount to be zero, and when the first request amount is increased, the gradual increase process sets an instruction value of a fuel injection amount of the first fuel injection process to gradually increase to the first request amount based on a decreased amount from the first request amount and also sets an instruction value of a fuel injection amount of the second fuel injection process based on an increased amount of the second request amount to compensate for a shortage amount of a sum of the decreased amount and the second request amount with respect to the request injection amount.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 2.96226
- Patent Class: 123.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15866859', '15608537', '15884541', '11048745', '15414622']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7774268229121363
- 35 USC 102 Novelty (BERT): 0.503444650556838
- Combined Prediction Score: 0.7500286056766065
- Mean Citation Score: 276.278248
- Max Citation Score: 320.65552
- Similarity Product: 275.7837817481804

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