PATENT CLAIM ANALYSIS

Application Number: 15756005
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-11
Patent Classification: ["475", "005000"]

Abstract:
In an electric vehicle in which front wheels are drive wheels, this invention is to provide an electric vehicle capable of endowing the front wheels with sufficient traction and obtain excellent travel performance. The electric vehicle has a sub-frame ( 56 ) that fixes a two-motor electric drive device (A) that drives the front wheels ( 51 ), at the front of a vehicle body. The two-motor electric drive device (A) that is fixed to the sub-frame ( 56 ) has two electric motors ( 1 L,  1 R) and two speed reducers ( 2 L,  2 R). The two speed reducers ( 2 L,  2 R) are integrally housed in a housing ( 20 ). The two speed reducers ( 2 L,  2 R) are sandwiched by the two electric motors ( 1 L,  1 R) and thereby integrated with each other. The lower part of the two-motor electric drive device (A) is fixed to the sub-frame ( 56 ) so as to be approximately the same height as the undersurface of the vehicle body. An electricity storage section ( 54 ) that supplies electric power that drives the two electric motors ( 1 L,  1 R) is disposed in a space between an axle of the front wheels ( 51 ) and an axle of rear wheels ( 55 ). An inverter unit ( 57 ) is disposed in proximity to the electric drive device (A).

Claim (Index 1):
An electric vehicle that drives at least front wheels, comprising a sub-frame that fixes a two-motor electric drive device that drives the front wheels at a front part of a vehicle body, wherein the two-motor electric drive device that is fixed to the sub-frame includes two electric motors that are coaxially aligned in a lateral direction of the vehicle body, and two speed reducers that receive and decelerate a rotation of the two electric motors, respectively; the two speed reducers are integrally housed in a housing; the two speed reducers are sandwiched between the two electric motors and thereby integrated with each other; axles of the two electric motors come out from the electric motors in an inward direction of the vehicle body towards the speed reducers; speed reduction mechanisms of the two speed reducers are independent on the left and right, respectively; two output shafts of the electric drive device that are decelerated by the speed reducers are coaxially aligned in the lateral direction of the vehicle body; the two output shafts drive each of left and right wheels, that are front wheels through a drive shaft, respectively; a lower part of the two-motor electric drive device is fixed to the sub-frame so as to be approximately the same height as an undersurface of the vehicle body; an electricity storage section that, when at least one electric motor of the two electric motors operates as a drive motor, supplies electric power to the electric motor, and when at least one electric motor of the two electric motors operates as a power generator, is charged with electric power produced by the power generator is mounted in a space between a front-wheel axle and a rear-wheel axle at a position that is further toward rear of the vehicle than the two-motor electric drive device that drives the front wheels; and an inverter unit that, when driving an electric motor as a drive motor, converts direct-current power from the electricity storage section to three-phase alternating-current electric power, and converts three-phase alternating-current electric power produced by an electric motor as a power generator to direct-current power for charging the electricity storage section is disposed in proximity to the two-motor electric drive device.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 2.97778
- Patent Class: 475.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13387693', '15568021', '13259083', '12735752', '14086566']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7385183145752047
- 35 USC 102 Novelty (BERT): 0.4794826452177085
- Combined Prediction Score: 0.712614747639455
- Mean Citation Score: 252.146676
- Max Citation Score: 259.61478
- Similarity Product: 221.4692453088784

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