Motor

Not much has been revealed about the FACTOR-e motor.  The following illustration comes from the 2025 parts book.  

We do know that it operates at a higher RPM than its predecessors.  It also appears to be much more compact than its predecessors. 

We can also see that it has a removable inertia disc (flywheel).  Item number 11 is standard for the FACTOR-e.  From the drawing, it appears to have more material near the perimeter and weight-reduction cutouts near the center when compared with item number 11' (which is for the Race/Escape R models).  Electric Motion provides the following information:

• 11 TC03R-50601-00-00 INERTIA, STANDARD, 1430 grams

• 11' TC03T-50601-00-00 INERTIA, OPTION, 940 grams (Standard for ESCAPE R and RACE)

• 11'' TC99U-50601-00-00 INERTIA, OPTION, 1210 grams

The motor itself is part number TC03R-40100-03-00.  Its price is available on request.  

The motor encoder (not shown) is part number TC03R-50415-00-00-ASM.  Priced at $253.00, it is considerably less expensive than the encoder used on the Epure bikes.

Three special tools are shown with the motor parts.  Prices are said to be available on request. 

• TC03T-T0223-00-01-B  ROTOR EXTRACTOR

• TC03T-T0223-00-01  TARGET LOCK TOOL

• TC03T-T0222-00-00  TRANSMISSION LOCK TOOL

Motor Revealed

I feel fortunate to have obtained these photographs and have taken the opportunity to do some investigation.

It's not a trivial task to remove a rotor that contains powerful permanent magnets from a motor assembly.  In fact, Electric Motion sells a special tool for the purpose.  It is especially important to be careful reinstalling the rotor because an oil seal at the far end can easily be damaged.  No good will come from clutch oil leaking into the motor! 

See the following for a write-up on the importance of nonconductive rotor bearings: https://www.electricmotiontech.com/home/mecatecno-dragonfly/motor#h.265sh8uq08gj

Estimated Dyno Chart

The synchronous speed of an electric motor is related to the number of poles and driving frequency by the following equation:

RPM = (120 × frequency) / poles 

So to achieve 12000 mechanical RPM, the drive frequency needs to be 600 Hz for a 6-pole motor.  To put this in context, motors running on power from the electric utility operate at 60 or 50 hertz.  Horsepower is proportional to speed, so 600-Hz operation allows for an order of magnitude more power.  However, temperature rise is a limiting factor and such high power levels may only be allowed for a short time.

The dyno charts shown below have been estimated using the following information:

• Rear wheel maximum torque of 1400 Nm in first gear   

• First gear overall speed reduction of 32.86:1   

• (The first two bullet points imply a maximum torque of 42.6 Nm at the motor shaft)

• Maximum motor power of 16 kW

• Maximum motor speed of 12000 RPM

• The drive train is assumed to be lossless

The charts are drawn in the same way as those for ICE vehicles. 

The slight rise in the torque curve just after the plateau is an artifact of the graphing function used to make a smooth curve from a limited number of data points.

Remember that this is the maximum short-duration torque available at wide-open throttle.  Torque at part-throttle will be proportionally diminished.

The graph below uses SI units so the torque and speed curves cross at 9550 RPM, which is as expected.

This next graph uses US Customary units so the torque and speed curves cross at 5252 RPM, which is as expected.