eBike technology explained

Hey everyone! New here, but loving my Lectric XP 3.0 so far – it's been a game-changer for my daily commute (about 10 miles round trip, mostly flat with a few small hills). I'm curious about the tech behind these bikes. Specifically, how does the pedal assist (PAS) system really work, and what's the difference between torque sensors and cadence sensors in real-world riding? I'd love to hear your experiences or explanations!