公开(公告)号：US12296693B2

公开(公告)日：2025-05-13

申请号：US18350890

申请日：2023-07-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Berry ,  Young J. Kim ,  Dylan M. Day ,  Jeffrey W. Yambor

IPC: H02P27/04 ,  B60L50/51 ,  H02P27/08

Abstract: A system for controlling operation of a vehicle having a power inverter module includes an alternating current (AC) power bus coupled to the power inverter module. The AC power bus has a plurality of busbars for conducting an AC current having multiple phases. The AC power bus is coupled to a stator in an electric motor configured to generate torque to propel the vehicle. A controller is adapted to determine an estimated temperature of the AC power bus for the multiple phases based on a plurality of factors. The plurality of factors includes an oil flow rate of a motor oil and a coolant flow rate of an inverter coolant that are in respective direct or indirect thermal contact with the plurality of busbars. The controller is adapted to control operation of the vehicle based in part on a highest one of the estimated temperature of the multiple phases.

公开(公告)号：US12255567B2

公开(公告)日：2025-03-18

申请号：US17984605

申请日：2022-11-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Berry ,  Young J. Kim ,  Dylan M. Day

IPC: H02P29/60 ,  G01K7/00

Abstract: A system includes a battery configured for providing electrical energy in direct current and a drive unit configured for utilizing electrical energy in alternating current to provide an output torque. The system includes a power inverter configured for receiving the electrical energy in direct current, transforming the electrical energy to alternating current, and providing the electrical energy in alternating current to the drive unit. The power inverter includes a direct current bus bar. The system includes a computerized controller. The controller monitors an environmental temperature of the inverter and monitors a current flow of the electrical energy received by the inverter. The controller determines an estimated temperature of the bus bar based upon the environmental temperature and the current flow and determining an inverter percent available capability based upon the estimated temperature. The controller compares the capability to a threshold value and controls the drive unit based upon the comparing.

公开(公告)号：US20160178548A1

公开(公告)日：2016-06-23

申请号：US14574469

申请日：2014-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Berry

IPC: G01N25/00 ,  F28F27/00 ,  G01K13/02

CPC classification number: F28F27/00 ,  F28D15/00 ,  G01K13/02 ,  G01K2013/026 ,  H02K9/19 ,  H02K9/24 ,  H02K11/25

Abstract: A method for dynamically monitoring temperature of a fluid at a heat generating device includes monitoring, using a temperature sensor, temperature of the fluid held in a fluidic sump. A first fluidic flow rate and a second fluidic flow rate are determined. A third fluidic flow rate and a temperature drop of the fluid across the heat exchanger in the active coolant circuit are determined based upon the temperature of the fluid and the third fluidic flow rate through the active coolant circuit. A fluid temperature supplied to the electric machine through the active coolant circuit is determined based upon the third fluidic flow rate and the temperature drop of the fluid across the heat exchanger. An effective temperature of the fluid is determined based upon the temperature of the fluid in the sump and the temperature of the fluid supplied to the electric machine through the active coolant circuit.

Abstract translation: 用于动态监测发热装置的流体温度的方法包括使用温度传感器监测保持在流体贮槽中的流体的温度。 确定第一流体流速和第二流体流速。 基于流体的温度和通过主动冷却剂回路的第三流体流速来确定流过有源冷却剂回路中的热交换器的流体的第三流体流速和温度降。 基于流过热交换器的第三流体流速和流体温度来确定通过主动冷却剂回路供应到电机的流体温度。 流体的有效温度基于贮槽中的流体的温度和通过主动冷却剂回路供给到电机的流体的温度来确定。

公开(公告)号：US09356551B2

公开(公告)日：2016-05-31

申请号：US13756455

申请日：2013-01-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Berry ,  Paul F. Turnbull ,  Chia-Chou Yeh

IPC: F04D15/02 ,  H02P31/00 ,  H02P29/00

CPC classification number: H02P31/00 ,  F04B2205/06 ,  F04B2205/10 ,  F04B2205/11 ,  H02P29/60

Abstract: An electric motor powers a fluidic pump fluidly connected to a hydraulic circuit. Operating the electric motor includes determining a heat transfer coefficient for the electric motor based upon a temperature of hydraulic fluid in the hydraulic circuit. A temperature of the electric motor is determined based upon the heat transfer coefficient. Operation of the electric motor is controlled based upon the temperature of the electric motor.

Abstract translation: 电动机驱动流体连接到液压回路的流体泵。 操作电动机包括基于液压回路中的液压流体的温度确定电动机的传热系数。 基于传热系数来确定电动机的温度。 基于电动机的温度来控制电动机的动作。