PATENT CLAIM ANALYSIS

Application Number: 16168033
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-11
Patent Classification: ["060", "420000"]

Abstract:
A hydraulic drive unit of a hydraulic excavator is configured to include a first hydraulic pump (P 1 ) that discharges a hydraulic oil for activating a boom cylinder ( 36 ) and the like, a first electric motor (M 1 ) that drives the first hydraulic pump (P 1 ), a hydraulic pump for revolution (P 2 ) that discharges a hydraulic oil for activating a revolution motor ( 26 ), a second electric motor (M 2 ) that drives the hydraulic pump for revolution (P 2 ), and a motor control device ( 150 ) that controls the rotation of the first electric motor (M 1 ) and that of the second electric motor (M 2 ). The motor control device ( 150 ) is configured such that when the revolution of the revolving body is not activated by the revolution motor ( 26 ), control to deactivate the second electric motor (M 2 ) is performed.

Claim (Index 3):
The hydraulic drive unit of a hydraulic excavator according to  claim 1 , comprising a pressure sensor that detects the maximum load pressure among the load pressures of the plurality of activation hydraulic actuators, and wherein\n the motor controller controls the rotation of the first electric motor, thereby controlling the discharge flow rate of the first hydraulic pump in such a manner that the discharge pressure of the first hydraulic pump is higher than the maximum load pressure.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 3.30189
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10276304', '10528575', '10495421', '13771987', '14113658']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.753505915533014
- 35 USC 102 Novelty (BERT): 0.4983481088780363
- Combined Prediction Score: 0.7279901348675163
- Mean Citation Score: 292.953626
- Max Citation Score: 308.3538200000001
- Similarity Product: 257.0970212658954

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