CMI researchers from Purdue University conducted the activity for this highlight
Innovation
Use genetic algorithm to optimize traction motor design of 2019 Nissan Leaf S in terms of material selection, motor dimensions and other parameters. Considered four objectives tied to economic and environmental performance: motor mass, energy consumption, and levelized costs of production and driving.
Achievement
- NdFeB-based motors are ~40% less expensive than SmCo-based motors.
- Improving energy performance tends to increase production costs and decrease driving costs.
- NdFeB-based motors impact environment less than SmCo motors.
Significance and Impact
Decision-making framework can be adapted to other products.
Hub Target Addressed
Assessing economic, environmental, and social acceptance impacts.