SAE to Reveal Standardized Wireless Charging J2954 Guidelines by End of 2012

By · January 31, 2012

Nissan Leaf wireless charging

The SAE taskforce will reveal its finalized J2954 wireless charging guidelines by the end of 2012.

The SAE taskforce on wireless charging of plug-in vehicles, developing the standard known as J2954. is expected to release its final draft of the standardized guideline by the end of 2012 year, according to the Society of Automotive Engineers (SAE).

"Wireless Charging enables the customer the ability to have transparent recharging of plug-in electric vehicle—EV, combustion engine, PHEV, fuel cell (FC) PHEV—through a seamless connection to the EVSE charger and automated charging process," said Jesse Schneider, chair of SAE J2954. "For wireless power transfer, essentially the customer does not have to do anything except park the vehicle in the right spot."

Topics open for discussion under J2954 include:

  • Classification of charging types and minimum efficiencies
  • Interoperability
  • Communications and software
  • Validation testing
  • Alignment between the vehicle's coil and the coil of the wireless unit
  • Location and orientation on vehicle
  • Safety
  • Design validation and verification testing

The SAE J2954 taskforce will determine minimum performance criteria for charging efficiency, develop safety criteria, establish testing protocol, reveal a common interface for the plug-in vehicle's induction coils and so on.

Once the SAE issues its final draft, preliminary testing will commence. The SAE predicts that its J2954 standard for wireless EV charging will be fully commercialized by the end of 2015.

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