electric-motor-design skill

Overview

This skill provides hands-on expertise for electric motor and drive unit design, covering topology selection, electromagnetic simulation, thermal modeling, and control algorithm development. It packages practical methods to optimize efficiency, cooling, NVH, and demagnetization resilience for production and prototype applications. The focus is on delivering validated motor specifications and control parameters ready for integration into vehicle or industrial powertrains.

How this skill works

The skill inspects design requirements (power, torque, duty cycle, cost) and recommends motor topologies such as PMSM, induction, or SRM. It guides electromagnetic FEA workflows using industry tools, generates efficiency maps, and couples thermal models to cooling designs. It also supports inverter sizing and field-oriented control (FOC) algorithm development, with NVH and demagnetization analyses to validate performance across operating conditions.

When to use it

• When selecting the optimal motor topology for a new vehicle or machine platform
• During early-stage design to generate efficiency maps and trade-offs
• When sizing inverters and defining control strategy like FOC
• To develop thermal and cooling solutions for continuous and peak loads
• When validating NVH and demagnetization under extreme conditions

Best practices

• Define realistic duty cycles and drive cycles before optimization to focus on relevant operating points
• Use coupled electromagnetic and thermal simulations to prevent overheating and magnet loss
• Generate full efficiency maps and weight trade-offs between peak torque and part-load efficiency
• Include NVH checks early to avoid late-stage redesigns that increase cost and time
• Document assumptions, material properties, and control parameters so results are reproducible

Example use cases

• Designing a PMSM for a passenger EV with emphasis on part-load efficiency and compact cooling
• Optimizing an induction motor for industrial applications with wide speed range and robust demagnetization resistance
• Sizing an inverter and developing FOC for a prototype drive unit to validate torque control and efficiency
• Performing NVH mitigation studies for a drivetrain to meet customer noise targets
• Creating efficiency and thermal maps to support system-level powertrain calibration

FAQ