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Chapter 04 · Applications · 03
Automotive & EV
A billion cars already ride on coded magnets — every ABS wheel-speed ring is a multipole pattern read like a barcode.
Automotive is quietly the largest installed base of multipole magnetization on Earth, and EV charging is pulling the self-mating-connector behavior into the mainstream.
ABS multipole encoder rings shipping
Every modern wheel-speed sensor reads an elastomer-bonded multipole ring — dozens of printed pole pairs whose passing field is the data. Coded magnetization as information, shipping for decades in every car you’ve driven.
Rosenberger RoPD EV charge connector shipping
A magnetically self-mating power connector (60 V / 40 A, 2,500+ cycles) used on e-bikes and light EVs: the magnet does the aligning and the retention, and defines the breakaway.
Interior trim fastening shipping
Magnetic trim and panel attachment ships today; a coded, keyed version — each panel seats only in its correct location — is the poka-yoke upgrade illustrative.
Halbach traction-motor rotors demonstrated
One-sided engineered-magnetization arrays in EV motor rotors for higher flux density per gram of rare earth — demonstrated in motors and heavily patented.
Electropermanent press-shop clamping & panel grippers shipping
Switchable magnet workholding moves body panels and dies in stamping plants — magnets-as-tooling, the adjacent category coded parts extend.
In-cabin Qi2 phone mounts shipping
The Qi2 ring brought self-aligning magnetic phone mounting into car interiors as a standard feature.
The takeaway. Cars prove both halves of the story: multipole-as-information (ABS rings) at commodity scale, and magnet-as-connector (RoPD) in safety-relevant service. Keyed coded fastening is the unclaimed next step.