PATENT CLAIM ANALYSIS

Application Number: 15885994
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["318", "400200"]

Abstract:
A BLDC motor drive system may be configured to provide a programmable PWM current waveform, e.g., a sinusoidal PWM current, to the motor. The drive system may include control electronics configured to generate a series of PWM control signals at a control signal frequency based on (a) the present motor speed data as determined by an angular timer, based on sensor-based rotor angle data, (b) a target motor speed, e.g., based on a thermal management unit, and (c) stored current waveform data defining a target current for each angular segment of the BDLC rotor, the target currents defining an non-rectangular waveform shape. The PWM control signals are used by a PWM unit to produce a non-rectangular, e.g., sinusoidal, PWM current for controlling the BDLC.

Claim (Index 6):
The system of  claim 1 , wherein:\n the angular timer is configured to output a series of angular segment signal pulses at an angular timer frequency corresponding with the present motor speed data determined by the angular timer based on the received rotor position data, each angular segment signal pulse corresponding with an angular segment within the rotation of the BLDC rotor; the PWM control electronics are configured to, for each angular segment signal pulse output by the angular timer:\n identify from the current waveform data a target current for the respective angular segment; \n adjust target current for the respective angular segment based on the target motor speed data generated by the target motor speed control unit; and \n communicate the adjusted target current for the respective angular segment to the PWM unit; \n wherein the PWM unit is configured to:\n receive the adjusted target current for each respective angular segment; and \n dynamically control at least one pulse characteristic to produce a PWM segment current corresponding with the adjusted target current for each respective angular segment.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 2.16418
- Patent Class: 318.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13959543', '15276887', '11061794', '13508367', '15448568']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7041334568527305
- 35 USC 102 Novelty (BERT): 0.4918394425628414
- Combined Prediction Score: 0.6829040554237417
- Mean Citation Score: 233.142376
- Max Citation Score: 249.48042
- Similarity Product: 198.5491357008184

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