Smart Grid EV Communication Module

Argonne’s technology integrates the communication controller into existing DC chargers or electric vehicles in order to accomplish SAE DC charging communication. The hardware itself is the interface for PEV-EVSE communication. Argonne’s technology could also be used to accomplish smart grid communication instead of DC fast charging communication, as well as wireless charging communication.

Argonne’s technology integrates the communication controller into existing DC chargers or electric vehicles in order to accomplish SAE DC charging communication. The hardware itself is the interface for PEV-EVSE communication. Argonne’s technology could also be used to accomplish smart grid communication instead of DC fast charging communication, as well as wireless charging communication.

Summary

A major drawback of electric vehicles is the long period of time required to recharge their batteries. While regular AC charging systems are sufficient for overnight charging of these vehicles at home or at the office, they aren’t practical for quick recharging in public areas. A rapid means for recharging is needed to make electric vehicles a practical alternative to the traditional internal combustion engine vehicle.

In response to this need, Argonne National Laboratory has developed a DC charging digital communication controller, theSmartgrid EV Communications (SpEC) Module. DC fast charging enables rapid recharging of electric vehicles along heavy traffic corridors and at public stations. A DC fast charge can add 60 to 80 miles of range to an electric vehicle in less than 20 minutes. The Society of Automotive Engineers (SAE) defines the specifications and requirements for off-board DC charging of electric vehicles; Argonne's SpEC technology conforms to these standards.

Recent analysis indicates the charging station market will grow in unit sales from around 120,000 units in 2012 to 1.3 million in 2020 — a compound annual growth rate (CAGR) of 35%. This represents a growth from $140 million in 2012 to an expected $1.15 billion in 2020, a CAGR of 30%. Argonne's SpEC is a major step toward broad adoption of electric vehicles. In addition, the technology could potentially be used to accomplish smart grid communication instead of DC fast charging communication, as well as wireless charging communication. This communication controller could also be used as a plug-in electric vehicle or electric vehicle supply equipment emulator to aid in testing and protocol development.

Benefits

  • Provides faster recharge rates
  • Can add 60-80 miles of range in 20 minutes
  • Makes electric vehicles more convenient and reliable
  • Can be used to achieve smart grid communication

Features

  • Conforms to SAE Standards
    • J1772: PEV/EVSE Interface and Performance Specs
    • J2931/4: HPGP PHY and Data-link Layer Specs
    • J2931/1: Communication Controller Protocol Stack
    • J2847/2: DC Application Layer Messages and Requirements

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