Selecting the right BLDC motor for electric vehicle applications involves more than comparing specs — cooling method is one of the most consequential decisions in EV powertrain design.Most guides tell you water cooling is "better." That's not wrong — but it's also not useful. This guide gives you the actual decision boundaries: what each cooling method handles, where it fails, and how to match your choice to your specific vehicle and duty cycle.
Why Cooling Is a System-Level DecisionThe cooling method isn't just a motor spec — it affects your entire drivetrain. It determines weight distribution, maintenance intervals, IP rating requirements, and total system cost over three to five years. Choosing based on motor specs alone is one of the most common ...
