PATENT CLAIM ANALYSIS

Application Number: 15926489
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["701", "054000"]

Abstract:
A powertrain system includes a transmission, torque generating device, load coupled to a drive axle, a final drive unit in meshed gear engagement with the output shaft and the drive axle, and a controller. A requested output torque is processed using an open-loop lash state model populated with a capped output torque request table and a lash closure rate estimate table respectively providing a capped torque value and an estimated lash closure rate. Output speed is determined using a plant model, the capped torque value, and the estimated lash closure rate. The powertrain is controlled during the transition using the output speed. A lash angle may be calculated from the closure rate using an integrator logic block. A calibrated lash offset profile may be determined using the lash angle, and a reference speed may be generated using the lash offset profile.

Claim (Index 1):
A powertrain system comprising:\n a torque generating device; a transmission having an output shaft, wherein the transmission is configured to receive an input torque from the torque generating device and produce an output torque that rotates the output shaft at an output speed; a drive axle; a load coupled to and driven by the drive axle; a final drive unit in meshed gear engagement with the output shaft and the drive axle; and a controller configured to manage a lash state transition of the meshed gear engagement via execution of instructions, wherein execution of the instructions by a processor of the controller causes the processor to:\n determine a requested output torque; \n process the requested output torque using an open-loop lash state model populated with a capped output torque request table and a lash closure rate estimate table respectively providing, in response to the requested output torque, a capped torque value and an estimated lash closure rate; \n calculate the output speed using a driveline plant model as a function of the capped torque value and the estimated lash closure rate; and \n control a dynamic operating state of the powertrain during the lash state transition using the output speed to thereby manage the lash state transition.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 2.23188
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12264413', '11386527', '12916729', '11386315', '12255800']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4400695846085746
- 35 USC 102 Novelty (BERT): 0.5134758069082256
- Combined Prediction Score: 0.4474102068385397
- Mean Citation Score: 287.95206399999995
- Max Citation Score: 317.38065
- Similarity Product: 264.7013615925014

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