5 ms·
That's a lie. Or, at least, there's another existing normal motor that can achieve at least nearly the same results. Existing motors are already 90+% efficient;
by coryrc 7y ago
That's a lie. Or, at least, there's another existing normal motor that can achieve at least nearly the same results. Existing motors are already 90+% efficient; it's not possible to make a 50% increase in range.
- mywittyname 7y agoI agree that they are at least misrepresenting their achievement. However, for the sake of argument, electric motor efficiency goes down quite a lot as overall power potential and RPM both drop. So it's possible they've come up with a sizeable efficiency improvement in a worst-case scenario, i.e., improving efficiency of a small motor in low RPM, part throttle situations. If that's the case, however, it doesn't really bode well for them, as their efficiency gains will not translate to the high-RPM, high-power motors used in cars. I'm not EE, but I do know that most engineering involves making trade-offs. So I wouldn't be surprised to learn that techniques to improve low-power, low-RPM efficiency probably sacrifices high-power, high-RPM efficiency.
- rickycook 7y agothey did call out scooters and drones, so id guess you’re right
- bigiain 7y agoPossibly. You can get motors running 90+% efficiency, but only in a more or less narrow power band. If they can improve the efficiency in the ends of that bell curve, even if it's not an overall efficiency increase across the entire power/torque/rpm/"throttle" range, they might realistically be getting a 50% increase in "real world" use... Especially if they can do that in a way that removes the need for a gearbox (to keep the motor in it's highly efficient range).