How Simulation Unlocks Efficient and Innovative Motor Design

Motor development has historically been a bottleneck in e-mobility; resource-intensive prototyping cycles, thermal complexity, and wide system considerations made new projects risky investments. In this SAE op-ed, Alex Morley, Team Leader Analysis at Helix, explores how modern electromagnetic simulation is fundamentally changing this landscape, enabling engineers to scope entire projects in hours rather than days and radically reducing the friction of exploring design alternatives.

However, simulation’s power lies not in the software alone. The real competitive advantage comes from data variety and quantity. Early-stage scoping simulations require both speed and accuracy, which depends on having pre-prepared datasets covering a broad range of motor configurations. This creates an unexpected advantage for organisations with diverse motor portfolios: a company with dozens of niche production runs will have richer, more varied data than one with only a few mass-production designs. At Helix, this diversity of historical motorsport and hypercar experience has become the foundation for entering new markets. By leveraging accumulated data across varied applications, the team has been able to rapidly develop compact, power-dense solutions for aerospace, marine, industrial, and defence sectors which are still early in their electrification journeys.

The key insight: simulation is not an alternative to engineering expertise; it amplifies it. Results are validated by hand, parameters selected by domain experts, and each project feeds back into the dataset, creating a continuous learning loop. From initial scoping to final validation, simulation becomes the connective tissue of modern motor development, reducing waste, accelerating timelines, and unlocking innovation that was previously constrained by prototyping costs.

Read the full article: How Simulation Unlocks Efficient and Innovative Motor Design – SAE Automotive Engineering May 2026