PATENT CLAIM ANALYSIS

Application Number: 15894777
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["060", "448000"]

Abstract:
A hydrostatic transmission for a traction drive includes a variable-displacement pump and one or more motors coupled to one another in a closed hydraulic circuit. A braking operation is introduced into the traction drive via the hydrostatic transmission, and is controlled in closed-loop fashion by an electronic control unit. A braking torque is controlled in closed-loop fashion indirectly by a swept volume of the secondary unit, for which purpose one or two closed-loop controllers are provided.

Claim (Index 14):
A method for closed-loop control of a required total braking torque or required total swept volume, proportional to the former, of a hydrostatic transmission for a traction drive, the method comprising:\n calculating a first additional swept volume with a P closed-loop controller based on a traveling speed difference or a difference proportional to the former; adding the first additional swept volume to a minimum swept volume to give the required total swept volume of at least one secondary unit; and setting a swept volume of at least one secondary unit to the required total swept volume, wherein the hydrostatic transmission includes\n a primary unit coupled to an internal combustion engine of the traction drive, \n the at least one secondary unit coupled to an output of the traction drive, \n two working lines of a closed circuit configured to fluidically connect the primary unit and the at least one secondary unit, \n an electrical control unit, wherein each of the primary unit and the at least one secondary unit have an adjustable pivot angle or an adjustable swept volume which are controllable by the electrical control unit during a braking operation of the hydrostatic transmission, and \n the P closed-loop controller, \n wherein the P closed-loop controller is configured for closed-loop control of the required total braking torque or of a value proportional to the required total braking torque, and wherein an input variable of the P closed-loop controller is (i) the traveling speed difference between a setpoint traveling speed and an actual traveling speed, or (ii) the difference proportional to the former between a setpoint rotational speed and an actual rotational speed of the at least one secondary unit.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 88.0
- Lexical Diversity: 1.58824
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15894790', '15135348', '15490006', '14182584', '14948954']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7190680184507922
- 35 USC 102 Novelty (BERT): 0.5088903010320053
- Combined Prediction Score: 0.6980502467089135
- Mean Citation Score: 233.01629599999995
- Max Citation Score: 333.03128
- Similarity Product: 262.99753171231737

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