PATENT CLAIM ANALYSIS

Application Number: 15883513
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["701", "069000"]

Abstract:
A control apparatus that controls a four-wheel drive vehicle in which a driving force is transmitted to rear wheels via a dog clutch, a propeller shaft, and a driving force transmission apparatus is configured to, when switching to a four-wheel drive mode, reduce a difference in rotation speeds of an intermediate rotational member and a ring gear member by a frictional force between a friction surface of a friction member, which is configured such that its rotation relative to the intermediate rotational member is restricted, and a target frictional slide surface of the ring gear member, and then couple the intermediate rotational member and the ring gear member by a clutch member in a state in which engagement forces of friction clutches configured to transmit the driving force between each of first and second output rotational members and the intermediate rotational member of the driving force transmission apparatus are set to engagement forces that allow their relative rotation.

Claim (Index 2):
The control method for a four-wheel drive vehicle according to  claim 1 , further comprising, when the two-wheel drive mode is switched to the four-wheel drive mode while the four-wheel drive vehicle is traveling, increasing the engagement force of the friction clutch after the clutch member is moved to the coupled position to increase the speed of the driving shaft by a torque transmitted from the output rotational member to the driving shaft via the first rotational member and the second rotational member, and then allowing the driving force connecting/disconnecting apparatus to transmit the driving force.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.37143
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15075911', '15725400', '15626391', '13959040', '12762581']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4929763064230867
- 35 USC 102 Novelty (BERT): 0.5156539889091056
- Combined Prediction Score: 0.4952440746716886
- Mean Citation Score: 325.122946
- Max Citation Score: 342.27112
- Similarity Product: 286.340654761343

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