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- The upcoming SAE J2954 Recommended Practice will enable a seamless, automated standard methodology to charge for individual vehicles to fleets of autonomous vehicles and their infrastructures. All of this with a specification to charge with high efficiencies over an air gap of 250mm (10 inches).
—Jesse Schneider, chair of the SAE J2954 task force
For the infrastructure side, a common location for the wireless charging ground assembly—in the parking lot—will be determined in 2017. In the published SAE TIR J2954, alignment is done through magnetic field triangulation using either the existing charging coils or an auxiliary antenna. SAE J2954 is planning to make a decision regarding alignment in 2017 as a basis for all infrastructure ground assemblies.
The SAE Communications Taskforce is assisting the Wireless Charging with an ecosystem for wireless communications, to allow a seamless vehicle to wireless infrastructure and later vehicle to ground assembly. SAE is utilizing IEEE 802.11
as a basis for this communications, which is similar to DSRC (or IEEE802.11p). The goal is that the vehicle navigation system can first locate an available wireless charging parking spot, lead you to a wireless charging point and SAE J2954 would help align your car in the parking spot, and finally wirelessly charge. As a concept, payment could be also automated through the same communications hub with no interaction required from the customer except pre-authorizing the payment. . . .