Global engineering organization SAE International has selected Mahle’s Differential Inductive Positioning System (DIPS) as the worldwide alignment methodology for electric vehicle (EV) wireless charging under the forthcoming SAE J2954 standard. The DIPS, based on a magnetic field, establishes a connection with the charging point automatically as the EV approaches, facilitating seamless charging initiation.
Mahle highlights that the DIPS system ensures a straightforward and reproducible parking process, even under challenging environmental conditions like snow or damp leaves. The technology is designed to function not only when a driver parks but also with autonomously parking vehicles, where the parking system receives positioning instructions instead of manual guidance.
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The charging pad, referred to as the “ground assembly” by SAE, generates a low-frequency, low-intensity magnetic field detected by the “vehicle assembly.” This enables precise alignment of the EV above the charging pad. The standardized alignment system is considered a crucial element for the broader adoption of inductive charging solutions, with SAE J2954 aiming to achieve charging efficiency of up to 93 percent.
Mahle’s commitment to wireless charging aligns with its strategic partnerships with Siemens and Witricity, focusing on advancing the overall system of charging infrastructure and automotive engineering. The decision by SAE International to adopt Mahle’s technology underscores the company’s expertise in electrification.
Arnd Franz, Chairman of the Mahle Group Management Board and CEO, sees the SAE’s endorsement as a significant milestone, stating, “MAHLE is setting standards. The renowned SAE’s decision in favor of our technology confirms the systems expertise of MAHLE in electrification as well. This will be a strong impetus for e-mobility.”
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Jesse Schneider, Chairman of the SAE Wireless Power Transfer Task Force (ZEV Station), emphasizes the simplicity of EV charging enabled by the SAE J2954 Standard, noting that the standardized alignment method, DIPS, resolves a critical aspect for wireless charging commercialization for EVs. SAE International, with over 128,000 members, plays a pivotal role in uniting professionals from aerospace, automotive, and commercial vehicle industries.
