PATENT CLAIM ANALYSIS

Application Number: 15924823
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["318", "400020"]

Abstract:
Methods and systems for applying adaptive thermal compensation when operating a rotor of a motor are provided. The method includes: receiving a plurality of parameter data of torque and temperature of the rotor and current and voltage of the motor by a region determination module; calculating, by the region determination module from the set of parameter data, a cosine value to determine a region for applying the adaptive thermal compensation wherein the cosine value is calculated from a constant torque direction vector and a voltage limit eclipse vector derived from a functional relationship of the one or more parameter data; and applying, by a reference modification module, a modification value to incrementally modify the motor current when the motor is operating within the region determined by the region determination module for the adaptive thermal compensation.

Claim (Index 17):
A vehicle, comprising an electric permanent magnet motor and a region determination module comprising one or more processors and non-transient computer readable media encoded with programming instructions, the region determination module is configured to:\n receive a plurality of parameter data of torque and temperature of the rotor and current and voltage wherein the set of parameter data comprises: a reference torque of the rotor, a current measurement of the current of the motor, a measured voltage of the motor, an angular speed measured of the rotor, and an estimated temperature of the rotor; calculate, from the set of parameter data, a cosine value to determine a region for applying adaptive thermal compensation wherein the cosine value is calculated from a constant torque direction vector and a voltage limit eclipse vector derived from a functional relationship of the one or more parameter data; apply a modification value to incrementally modify the motor current when the motor is operating within the region determined by the region determination module for the adaptive thermal compensation; derive the constant torque direction vector based on the measured angular speed of the rotor wherein the constant torque direction vector is calculated by a function M \ue89e = \u0394 \ue89e ( - \u2202 T e \u2202 i qs e , \u2202 T e \u2202 i ds e ) wherein T e  is an electromagnetic torque and i e ds  and i e qs  are a d- and q-axis dq current in a synchronously rotating reference frame of the motor;\n derive the voltage limit eclipse vector based on a d-axis current and a q-axis current of the measurement of the current of the motor wherein the voltage limit eclipse vector by the function \n N \ue89e = \u0394 \ue89e ( - \u2202 J \u2202 i ds e , - \u2202 J \u2202 i qs e ) wherein J=\u00bd(v ds e 2 +v qs e 2 ), v ds e \u2245\u2212\u03c9 r \u03bb qs e =\u2212\u03c9 r L q i qs e  and v qs e \u2245\u03c9 r \u03bb ds e =\u03c9 r (L d i ds e +\u03bb f ) wherein \u03bb e ds  and \u03bb e qs  are estimated dq flux linkages in the synchronously rotating reference frame, \u03c9 r  is the rotor angular speed, i e ds  and i e qs  are the d-axis and q-axis dq currents in the synchronously rotating reference frame, v e ds  and v e qs  are voltages in the synchronously rotating reference frame, L d  and L q  are d-axis and q-axis inductances, and L matrix is a gain; and\n calculate the cosine value by calculating the inner product of \n 1 \uf605 M \uf606 \ue89e ( - \u2202 T e \u2202 i qs e , \u2202 T e \u2202 i ds e ) \u00b7 1 \uf605 N \uf606 \ue89e ( - \u2202 J \u2202 i ds e , - \u2202 J \u2202 i qs e ) = 1 * 1 * cos \ue89e \ue89e \u03b8 wherein T e  is an electromagnetic torque calculated by the function T e = 3 2 \ue89e P 2 \ue89e ( ( L d - L q ) \ue89e i ds e + \u03bb f ) \ue89e i qs e wherein i e ds  and i e qs  are the d-axis and the q-axis dq current in the synchronously rotating reference frame of the motor wherein \u2225x\u2225 is a magnitude of vector and L d  and L q  are d-axis and q-axis inductances.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 90.0
- Lexical Diversity: 2.28571
- Patent Class: 318.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15674804', '13653543', '14049077', '11156019', '14681977']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6762744757039253
- 35 USC 102 Novelty (BERT): 0.4905567000108716
- Combined Prediction Score: 0.6577026981346199
- Mean Citation Score: 231.47186800000003
- Max Citation Score: 256.12164
- Similarity Product: 207.79885482635024

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test