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System and method for controlling exchange of current

A technology of current and modulation schemes, applied in the field of switching systems, can solve problems such as reducing the effectiveness of filtering systems

Active Publication Date: 2013-06-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, however, the magnitude of the exchange current in vehicular applications and the relative proximity of the charging system to the broadcast receiving antenna tends to reduce the effectiveness of such filtering systems

Method used

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  • System and method for controlling exchange of current
  • System and method for controlling exchange of current

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Embodiment Construction

[0049]The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0050] Such as figure 1 As shown, according to an exemplary embodiment of the present invention, a system 100 for exchanging electric current in an electric vehicle includes a load 110 electrically coupled to a power source 120 via a current exchange controller 130 . In an exemplary embodiment, current exchange controller 130 is configured to receive supply current from power source 120 , which may be an off-board power source, such as a household power source (eg, 110V mains, 220V mains) or a commercial charging station. Alternatively, power source 120 may be an on-board power source, such as a motor / generator driven by the vehicle's engine. The supply current may be AC ​​current provided at 60 Hz, and the c...

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Abstract

A system for charging an electrically powered vehicle comprises a DC battery; and a current exchange controller. The current exchange controller is configured for receiving a supply current from an off-board power source and determining a desired current exchange characteristic. The current exchange controller is also configured for determining a modulation scheme for providing an exchange current that exhibits the desired current exchange characteristic; and modulating the exchange current in accordance with the modulation scheme so as to deliver an exchange current exhibiting the desired current exchange characteristic. The modulation scheme is configured to meet one or more criteria based on annoyance.

Description

technical field [0001] The present invention relates to systems and methods for controlling the exchange of electrical current, and more particularly, to systems and methods for charging or discharging electric vehicles with electrical current modulated to reduce annoyance. Background technique [0002] It has been found that the relatively high currents associated with charging large battery systems, such as those used in electric vehicles, cause a number of annoyances, including interference with radio transmissions and vibrations in magneto-optical structures including body panels. Similar problems have also arisen when discharging battery systems, for example when operating electric vehicles. In such cases, the annoyance is due to oscillating magnetic fields induced by charge and discharge currents (ie, exchange currents). [0003] Although vehicle battery systems and their associated electric motors are typically configured as direct current (DC) systems, the current f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/00Y02E60/12H02J7/045H01M10/44Y02T10/7005B60L11/18H01M2220/20Y02E60/10H02J7/04H02J7/007182Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor R.W.维斯
Owner GM GLOBAL TECH OPERATIONS LLC
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