-
公开(公告)号：US20240072717A1
公开(公告)日：2024-02-29
申请号：US17971851
申请日：2022-10-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tanvi Nagarale , Brent S. Gagas , Brian A. Welchko
Abstract: A control system for a rotary electric machine includes an inverter including a plurality of power switches, a heat exchanger, first temperature sensors arranged to monitor the power switches, a second temperature sensor arranged to monitor the heat exchanger, and a controller. An expected power loss is determined based upon electric current, switching functions, and electrical characteristics of the power switches. A plurality of power capacity terms are determined based upon the expected power loss in the inverter, the temperatures of the power switches, and the temperature of the heat exchanger. The inverter is controlled based upon the aforementioned power capacities.
-
Patent Agency Ranking
公开(公告)号：US20230364996A1
公开(公告)日：2023-11-16
申请号：US17740955
申请日：2022-05-10
Applicant: GM Global Technology Operations LLC
Inventor： Jiyu Zhang , Bojian Cao , Nomar S. Gonzalez Santini , Jeffrey Scott Piasecki , Tanvi Nagarale , Muhammad Hussain Alvi , Rashmi Prasad
IPC: B60L3/00
CPC classification number: B60L3/003 , B60L2240/525 , B60L2240/527
Abstract: Examples described herein provide a method that includes performing an electrical degradation analysis for a power inverter. The method further includes performing a thermal degradation analysis on the power inverter. The method further includes, responsive to at least one of a result of the electrical degradation analysis being indicative of an electrical issue of the power inverter or a result of the thermal degradation analysis being indicative of a thermal issue of the power inverter, implementing a corrective action for the power inverter.
-
公开(公告)号：US20240396488A1
公开(公告)日：2024-11-28
申请号：US18792789
申请日：2024-08-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tanvi Nagarale , Brent S. Gagas , Brian A. Welchko
Abstract: A control system for a rotary electric machine includes an inverter including a plurality of power switches, a heat exchanger, first temperature sensors arranged to monitor the power switches, a second temperature sensor arranged to monitor the heat exchanger, and a controller. An expected power loss is determined based upon electric current, switching functions, and electrical characteristics of the power switches. A plurality of power capacity terms are determined based upon the expected power loss in the inverter, the temperatures of the power switches, and the temperature of the heat exchanger. The inverter is controlled based upon the aforementioned power capacities.
-
公开(公告)号：US12126293B2
公开(公告)日：2024-10-22
申请号：US17971851
申请日：2022-10-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tanvi Nagarale , Brent S. Gagas , Brian A. Welchko
Abstract: A control system for a rotary electric machine includes an inverter including a plurality of power switches, a heat exchanger, first temperature sensors arranged to monitor the power switches, a second temperature sensor arranged to monitor the heat exchanger, and a controller. An expected power loss is determined based upon electric current, switching functions, and electrical characteristics of the power switches. A plurality of power capacity terms are determined based upon the expected power loss in the inverter, the temperatures of the power switches, and the temperature of the heat exchanger. The inverter is controlled based upon the aforementioned power capacities.
-
公开(公告)号：US20250141392A1
公开(公告)日：2025-05-01
申请号：US18494757
申请日：2023-10-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Vinod Chowdary Peddi , Tanvi Nagarale
Abstract: A motor control system including an inverter having a diode and a transistor for generating an alternating current in response to a pulse width modulated direct current having a fixed amplitude and a processor configured to adjust a zero vector of the pulse width modulated direct current in response to a diode temperature and a transistor temperature such that the diode temperature equals the transistor temperature.
-
公开(公告)号：US20250121691A1
公开(公告)日：2025-04-17
申请号：US18486585
申请日：2023-10-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Martin E. Rosalik, Jr. , Todd M. York , Tanvi Nagarale , Brent S. Gagas , Brian A. Welchko , Wei Wang
IPC: B60L3/00 , B60L3/12 , G01R19/165
Abstract: Vehicles and related systems and monitoring methods are provided for detecting a loss of isolation on one side of a power converter. One method involves monitoring a normalized voltage input to a power conversion module coupled to the electric motor, in response to the normalized voltage exceeding a diagnostic activation threshold, determining a first number of instances of a range between successive extremas of the normalized voltage exceeding a loss of isolation range threshold over a diagnostic window of time, and automatically initiating a remedial action when the first number is greater than a loss of isolation detection threshold.
-
-
-
-
-
Search Results
6
records
(took 0.012 seconds)
