Patent 12,779,916 grants Stellantis electric tow dolly rights
Electric tow dolly technology advanced on November 3, 2026, when Stellantis secured [US Patent No. 12,779,916] after an initial filing in 2023. Electrek reported that the patented system shoulders trailer hitch loads using an on-board electric motor, battery, and regenerative braking.
The autonomous setup relies on cameras, sensors, and a four-wheel steer-by-wire system to manage trailer weight, braking, and steering. Lead vehicles pulling the dolly do not require massive motors, heavy suspensions, or oversized brakes because the unit itself supplies the primary pulling power and traction control.
Smaller commuter cars like the Fiat 500e can tow heavier loads using the dolly. Truck bed sides and a compact frame provide utility on demand, letting drivers purchase smaller and more fuel-efficient daily vehicles.
Practical questions remain regarding battery capacity limits, maximum weight handling, and performance during emergency braking or steep grades. The filing functions as intellectual property defense rather than an immediate product launch confirmation.
How the electric tow dolly attaches and works
How does the electric tow dolly attach to vehicles?
The dolly connects using its own ball hitch or fifth-wheel plate to shoulder the trailer’s hitch load directly.
What vehicle models can pull the dolly system?
The system can follow various automobiles, including compact options like the Fiat 500e.
Is the electric tow dolly available for purchase now?
Stellantis has only secured US Patent No. 12,779,916 as of November 3, 2026, and has not announced a commercial release date.
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