SAE International selects EV wireless charging positioning tech
SAE International has chosen a cross-manufacturer EV wireless charging positioning technology from Mahle in Germany for wireless charging.
Inductive charging of electric vehicles (EVs) is much more convenient as there is no need to fiddle with cables or search for a charging station with a suitable plug but needs a wireless charging positioning system that allows an electric vehicle to be simply, reliably and precisely aligned above the charging coil in the floor.
SAE International has chosen the Mahle Differential Inductive Positioning System (DIPS) for inductive wireless charging systems, which Mahle says paves the way for mass rollout of the technology. Mahle says it will make the technology accessible to the entire industry via a license model under FRAND (fair, reasonable, and non-discriminatory) conditions.
“Siemens and Witricity are two strong partners at our side with whom we are jointly advancing the complete system of charging infrastructure and automotive engineering,” said Dr. Harald Straky, Head of Corporate Research and Advanced Engineering at Mahle.
DIPS is based on a magnetic field and automatically establishes a connection with the controlled charging point as the electric vehicle approaches. This links to a navigation system in the vehicle display that supports the driver to position the vehicle, and the charging process begins automatically. This also works with an autonomous parking vehicle, where the parking system receives the necessary positioning instructions instead of the driver and can be used in unfavourable environmental conditions such as snow cover or wet leaves on the bottom plate.
For mass rollout, components relating to both the infrastructure and the vehicle side must be standardized. Only then can both the vehicle manufacturers and the infrastructure providers bring a solution to market that ensures compatibility regardless of the manufacturer.
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Mahle has also been working with Electreon Wireless on a standard technology for charging via induction coils while driving.
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