EV Motors Aren’t Done: Inside the Next Wave of EV Drive Units

From Electric Vehicle Society.

Everyone talks about EV batteries. But the drive unit is where electricity becomes motion — and where major gains in EV performance, efficiency, cost, and refinement are still being made.

In this Canada Talks Electric Cars webinar, Paul Turnbull, Technical Specialist at Munro & Associates, gives a teardown-informed look at EV powertrain trends, including battery costs, voltage architecture, drive-unit integration, motors, inverters, gearboxes, and the technologies that could shape the next generation of electric vehicles.

Munro & Associates is known for taking vehicles apart to understand how they are engineered, manufactured, packaged, and costed. That teardown perspective makes this a practical, engineering-focused discussion about what is changing inside EVs — and why the motor and drive unit remain major areas of innovation.

This discussion covers EV battery cost trends, sodium-ion batteries, 400-volt and 800-volt architectures, cell-to-pack design, motor efficiency, integrated drive units, inverters, gearboxes, hairpin windings, permanent magnet motors, wound-field synchronous motors, and axial flux motors.

If you are interested in electric vehicles, EV motors, drive units, automotive engineering, inverters, power electronics, battery trends, or how future EVs may become more capable and affordable, this discussion offers a clear look inside the technology that actually moves the car.

Presented by the Electric Vehicle Society as part of the Canada Talks Electric Cars webinar series.

CHAPTERS
00:00 EV Motors and Drive Units
00:59 EV Powertrain Trends
01:47 EV Battery Costs and Affordability
03:36 Sodium-Ion Batteries
05:33 400-Volt vs 800-Volt EVs
08:22 Cell-to-Pack Battery Design
10:40 Why Motor Efficiency Matters
11:49 Integrated EV Drive Units
13:10 EV Motor Basics: Rotor and Stator
15:56 EV Inverters and Power Electronics
16:53 EV Gearbox and Differential
18:17 Hairpin Windings and Motor Efficiency
21:14 Permanent Magnet Rotor Design
23:57 EV Motor Design Convergence2
4:49 Wound-Field Synchronous Motors2
6:45 Axial Flux Motors
29:34 Closing Thoughts