1) Extended Driving Range
High efficiency motors reduce the amount of electricity required to travel the same distance. As a result, the distance that can be driven on a single charge increases, enabling longer trips.
2) Reduced Battery Capacity
Because less energy is needed for driving, the battery capacity can be optimized. Even a smaller battery can provide sufficient driving range, contributing to vehicle weight reduction and lower overall costs.
3) Lower Electricity Costs
By reducing power consumption per kilometer, high efficiency motors help users save on electricity costs associated with charging.
4) Longer Battery Life
Lower total charge/discharge cycles reduce battery degradation. This extends battery life and decreases the frequency of battery replacements.
5) Reduced CO₂ Emissions
Even when electricity includes fossil fuel based sources, improved energy efficiency helps reduce CO₂ emissions. This benefit is especially important in regions such as Europe, where environmental regulations continue to tighten.
6) Prevention of Overheating
Since high efficiency motors experience lower energy losses, heat generation is reduced. This helps prevent overheating—even during steep climbs or continuous driving—and supports stable performance.
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2. How These Benefits Apply to Vehicle Planning
Among the six advantages described above, (1) extended driving range and (2) reduced battery capacity are particularly important in vehicle development.
As the diagram below illustrates, depending on target user needs, manufacturers must choose whether to:
• Maintain battery capacity while extending driving range, or
• Keep driving range constant while reducing battery capacity to achieve weight and cost reduction
This trade off is a key consideration in electric vehicle product planning.
