Mine is wound for 50kv, I found the following...
For future reference of Wye mode, the motor tests between 119.0 and 129.4 uH at 200khz frequency measured in natural rest. The windings are .138 ohm per phase measured with a Kelvin lead setup and 1 amp current driver. Maybe some of you smart fellows can calculate fancy things from that.
Thanks. So, at Kv=150, the motor would be 15.3 mOhm and 13,9µH. Inductance at 150 Kv is so low, that no ebike/RC controller will work well.
At 60V this would be 9000 rpm. To get 14kW of input power, it will draw 233 Amps and it will make 832W of heat in the motor. How are you going to dissipate that?
My second concern is... Why would one consider lowering Kv? Sure, you will need less reduction, but you will lose power as well. For example, the same motor, wound for 2x lower Kv, will produce 4x less power. Even if you increase battery voltage to get the same RPM, you will get 2x less power from the same motor. This is because series resistance of the motor increase is a square of Kv decrease.
smart and Tiny BMS solution
Visit my blog
. Personal projects: Clean Peugeot conversion
| Ultralight enduro
Any and all information, such as texts, specifications, drawings or other material that I post are to be used only as a reference for personal, non-commercial projects ONLY. Any republication for personal or commercial needs must be agreed on individually. Use of any information, that I post, for commercial purposes is strictly prohibited.