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Method and apparatus to control an inverter

An inverter, switch-controlled technology, used in transportation and packaging, traction with engines, electric vehicles, etc., can solve problems such as power loss affecting system efficiency, system heat generation, etc.

Active Publication Date: 2017-02-15
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Power loss affects system efficiency and system heat generation

Method used

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  • Method and apparatus to control an inverter
  • Method and apparatus to control an inverter
  • Method and apparatus to control an inverter

Examples

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Embodiment Construction

[0009] Referring now to the drawings, the content shown therein is only to illustrate certain embodiments, not to limit them. figure 1 The high-voltage power system 40 controlled by the controller 12 is schematically shown. In a non-limiting embodiment, and as shown in the figure, the high-voltage power system 40 is used on the powertrain system 20 of the vehicle 10.

[0010] In one non-limiting embodiment, the powertrain system 20 includes an internal combustion engine (engine) 24 that is mechanically coupled to the electric machine 30, and a mechanism that is mechanically coupled to the vehicle driveline 26 to provide propulsion power to one or more vehicle wheels. Transmission mechanism 28. The engine 24 may be any suitable internal combustion engine that converts hydrocarbon-based fuels or other fuels into mechanical power through a combustion process. Using the rotatable member 22 of the transmission mechanism 28 or other suitable mechanical coupling, the engine 24 is mecha...

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PUM

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Abstract

An inverter electrically connected to an electric machine is described. A method for controlling switching in the inverter includes determining a torque output of the electric machine and determining a temperature related to an inverter cooling circuit. A preferred inverter switch control mode for controlling the inverter is selected based upon the torque output of the electric machine and the temperature related to the inverter cooling circuit.

Description

Technical field [0001] The present disclosure relates to high-voltage power systems utilized on vehicles and control routines related to them. Background technique [0002] The vehicle may use a powertrain system that generates propulsion power by an internal combustion engine (engine) together with a non-combustion type motor such as a high-voltage electric motor / generator. Via a high-voltage power circuit including an inverter, a high-voltage electric motor / generator obtains power from an on-board high-voltage electric energy storage device (for example, a high-voltage battery). An inverter is a device that converts a DC input voltage into an AC output voltage using a plurality of semiconductor switches arranged in pairs. The paired semiconductor switches are controlled according to the inverter switching control mode. The AC output voltage may be supplied to an electric machine such as a high-voltage electric motor / generator to complete work, where the work may include gener...

Claims

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Application Information

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IPC IPC(8): B60L11/12B60W20/10B60L50/15
CPCB60L50/15B60W20/10B60L2210/30B60L2210/44B60L2240/423B60L2240/443B60L2240/529B60W2510/083B60W2710/24B60K1/00H02P29/60H02P27/085H02M7/537
Inventor D·S·奥克斯B·A·韦尔奇A·K·洛斯托尼
Owner GM GLOBAL TECH OPERATIONS LLC