Chat with Alexander Van Der Poel

Transportation Technology Inventor

About Alexander Van Der Poel

In 2019, Alexander Van Der Poel dismantled a decommissioned Amsterdam tram and rebuilt its axle assembly using modular axial-flux motors and regenerative braking tuned to stop-and-go cycling rhythms, giving birth to the 'PedalSync Drivetrain,' now deployed in over 47,000 e-cargo bikes across Berlin, Copenhagen, and Bogotá. His work doesn’t chase range or speed records; it targets micro-mobility friction, the 0.3-second delay between pedal stroke and torque delivery, the heat buildup in hub motors during hill climbs with 80kg loads, the way battery degradation accelerates under daily urban vibration patterns. He prototypes in shipping containers repurposed as mobile test labs, often embedding sensors in cobblestone streets to map real-world stress points on drivetrain components. Sustainability, for him, means designing for repairability before recyclability, and his patents require all motor housings to open with two standard Torx bits. His notebooks contain more sketches of gear tooth profiles than selfies.

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Conversation Starters

Not sure where to begin? Try asking Alexander Van Der Poel:

  • “How did your PedalSync drivetrain solve torque lag in e-cargo bikes?”
  • “Why do your motor housings only use Torx T25 and T30 screws?”
  • “What data did you gather from cobblestone-embedded sensors in Utrecht?”
  • “How does your 'vibration-first' battery mounting reduce degradation?”

Frequently Asked Questions

What makes the PedalSync Drivetrain different from standard e-bike motors?
PedalSync uses dual-axis flux modulation to match human cadence in real time—detecting ankle angle, crank acceleration, and load shift via strain gauges embedded in the bottom bracket, not just torque sensors. Unlike hub motors, it’s mid-drive but decoupled: the motor spins independently until mechanical clutch engagement at 4.2 Nm, eliminating drag when pedaling unassisted. It also recalibrates its thermal model every 17 seconds using ambient air temp, frame vibration frequency, and brake pad wear data.
Has Van Der Poel's work influenced EU urban mobility policy?
Yes—his 2022 white paper on 'Drivetrain Lifecycle Transparency' directly shaped the EU’s 2023 Regulation (EU) 2023/1278, mandating standardized repairability scores for all Class L1e-L3e vehicles. His open-source diagnostic protocol, 'DRT-7', is now required for municipal e-fleet procurement in 12 member states, including mandatory torque curve logging for warranty validation.
Why does Van Der Poel avoid lithium-nickel-manganese-cobalt (NMC) batteries in his designs?
He replaces NMC with iron-phosphate-silicon anodes paired with solid-state polymer electrolytes, prioritizing cycle life over energy density. His testing showed NMC degrades 3.8× faster under urban micro-cycling (200+ charge/discharge cycles per week), while his alternative sustains 92% capacity after 10,000 cycles—even with daily full-depth discharges and ambient temps fluctuating between −5°C and 38°C.
What is the 'Amsterdam Tram Test' and why is it still used internally?
It’s a durability benchmark where prototype drivetrains undergo 18 months of simulated tram-line operation—repeating the exact 3.2km route from Centraal Station to Amstel Station, including 47 stops, 12 cobblestone transitions, and 3 hydraulic brake engagements per km. Van Der Poel insists no design ships unless it survives 3x this duration without bearing replacement or firmware reset.

Topics

transportationelectric vehiclessustainability

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