Horse Powertrain has unveiled its Amorphous Motor, a dedicated hybrid transmission motor built around an amorphous steel stator. The design achieves 98.2% efficiency — a benchmark the company claims leads the industry — while delivering 140 kW peak power at 360 Nm of torque.
Highlights
- Stator layers measure just 0.025 mm thick — one-tenth the thickness of conventional motor steel — reducing iron energy losses by 50%
- Peak output: 140 kW / 360 Nm with 98.2% efficiency
- System-level impact: A 1% reduction in whole-vehicle fuel and power consumption for hybrid applications
- Target platforms: Range-extended EVs, hybrids, and plug-in hybrids
Amorphous Steel Redefines Stator Design
Traditional motor stators rely on silicon steel laminations, which generate energy losses through magnetic hysteresis and eddy currents. Horse Powertrain’s approach substitutes amorphous steel — an alloy characterized by high magnetic permeability and low core loss — for those laminations.
The material enables stator sheets as thin as 0.025 mm. That is one-tenth the thickness of steel used in conventional motors. As a result, stator iron losses drop by 50% compared to equivalent designs.
The motor first appeared publicly at IAA Summit 2025. Horse Powertrain confirmed its global debut on March 5, 2026.
Efficiency Gains and OEM Implications
The 98.2% efficiency rating translates directly to measurable vehicle-level outcomes. Hybrids equipped with the Amorphous Motor are projected to consume 1% less fuel and electrical energy than those using current motor architectures.
For OEMs, that margin matters. As emissions regulations tighten globally, incremental efficiency improvements across powertrain components compound into meaningful compliance and performance advantages. Horse Powertrain positions the motor as a core enabler for next-generation low-emission platforms.
Deputy CTO Ingo Scholten stated that the Amorphous Motor is suited to range-extended EVs, hybrids, and plug-in hybrids, and supports what Horse Powertrain describes as a technologically neutral approach to decarbonization.
Horse Powertrain’s Global R&D Footprint
Horse Powertrain operates 17 manufacturing plants and five R&D centers worldwide, employing 19,000 people. The company’s shareholder structure comprises Renault Group (45%), Geely (45%), and Aramco (10%).
Its product portfolio spans engines, transmissions, power electronics, and integrated hybrid platforms. The Amorphous Motor announcement follows a series of recent high-efficiency technology disclosures that form part of the company’s broader global strategy.
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