PATENT CLAIM ANALYSIS

Application Number: 16511307
Application Type: Utility
Filing Date: 2019-07
Publication Date: 2019-11
Patent Classification: ["475", "005000"]

Abstract:
A gearbox having an input shaft ( 8 ) and an output shaft ( 20 ); a first epicyclic gear ( 10 ) connected to the input shaft ( 8 ); a second epicyclic gear ( 12 ) connected to the first epicyclic gear ( 10 ); a first electrical machine ( 14 ) connected to the first epicyclic gear ( 10 ); a second electrical machine ( 16 ) connected to the second epicyclic gear ( 12 ); a first main shaft ( 34 ) connected to the first epicyclic gear ( 10 ); a second main shaft ( 36 ) connected to the second epicyclic gear ( 12 ). A first coupling unit ( 56 ) disengagingly connects two rotatable components ( 22, 26, 50 ) at the first epicyclic gear ( 10 ), and a second coupling unit ( 58 ) disengagingly connects two rotatable components ( 28, 32, 51 ) at the second epicyclic gear ( 12 ), such that at least one of the rate of revolution and the torque at the first and the second main shafts ( 34, 36 ) can be influenced by controlling at least one of the first and the second coupling units ( 56, 58 ) to a condition of the rotatable components ( 22, 26, 50; 28, 32, 51 ) that is engaged or disengaged. Also a vehicle ( 1 ) having such a gearbox ( 2 ), a method to control such a gearbox ( 2 ), a computer program (P) to control a gearbox, and a computer program product comprising program code for an electronic control unit ( 48 ) or another computer ( 53 ) in order to implement the method.

Claim (Index 1):
A method to control a gearbox wherein the gearbox comprises:\n an input shaft and an output shaft from the gearbox; a first epicyclic gear connected to the input shaft; a second epicyclic gear connected to the first epicyclic gear; a first electrical machine connected to the first epicyclic gear; a second electrical machine connected to the second epicyclic gear; a first main shaft connected to the first epicyclic gear; a second main shaft connected to the second epicyclic gear; a second planet gear carrier at the second epicyclic gear and connected to the second main shaft; and the input shaft is connected to a first planet gear carrier at the first epicyclic gear; the method comprising the steps: a) controlling at least one of the first and the second electrical machines to achieve torque balance at the first or the second epicyclic gear and to achieve a synchronous rate of revolution between two rotatable components at the first or the second epicyclic gear; and b) controlling a first or a second coupling unit to connect the two rotatable components at the first or the second epicyclic gear when a synchronous rate of revolution between the two rotatable components has been achieved and to disengage the two rotatable components at the first or second epicyclic gear when torque balance has been achieved in the relevant epicyclic gear.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 3.55682
- Patent Class: 475.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14780452', '14780016', '14780007', '15454266', '15471002']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7642883397185688
- 35 USC 102 Novelty (BERT): 0.5581117633201986
- Combined Prediction Score: 0.7436706820787318
- Mean Citation Score: 356.400956
- Max Citation Score: 413.8614
- Similarity Product: 361.1781165730477

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

Dataset: test