Timing of SSS56104


#1

Hi,
Everything is in the title. What is the timing of the 56104 500kv ?
Thanks.


#2

I would like to know what timing all others use in their esc too. This motor is very often used. As I burned my Leopard 5692 500KV, and I orderd a SSS56114 440KV, it would be grate to get some input from other users, what timing they set in the esc.
Thanks
Toto


#3

The higher the timing the higher the RPMS you get, but he HOTTER the motor will run and with a little less torque. I did a lot of research on this and because we are using constant power the lower the timing 0 -5% is best to keep torque up, and motor heat down. Its crazy how hot a motor gets when you have timing higher than 8%, I know it can be jacked up to 30% but its not good for our use.


#4

What is timing physically explained ? A check frequency ?
At which level does it operate which explains a 5% increase could be deadly for a motor?


#5

Timing : i guess the same as when you are tuning a car engine : a degree in the rotation just to leave time so things are in right place at the right time, as the change of field and the position of the magnet with the lost during rotation , everything is not always perfect there is a delay and timing is there to anticipate this time

My understanding , easier to measure for a pétrol engine … for me … ( ECU mapping)

deadly with heat when you want to spin it faster when it can or should : 10 degrees for timing : 10 degree in advance before the theorical place in perfect world


#6

It’s my understanding that a motor with lower timing will produce maximum horsepower at low rpm, and a motor with higher timing will produce maximum power at high rpm. The best timing setting does not necessarily achieve the maximum horsepower that the motor is capable of, but rather produces the maximum horsepower within the rpm range you’re most frequently using. Finding the ideal motor timing setting for your conditions will take a bit of trial and error, but in general, you can expect heavier loads that need quick acceleration will benefit from lower timing setting for more torque. However, if you have a lighter load and/or are running on long straights, higher timing settings may increase your top speed. Just watch the motor temperature; the more you advance the motor’s timing, the hotter it will run. Hope this helps :blush:


#7

The Timing is about when to switch to the next motor phase (=one of the three wires of the motor). When driving a BLDC motor usually the current flows through two of the three motor wires. With the voltage on the thrid phase the ESC determines when to switch to the next phase. The Timing manipulates when this phase switching occurs.
The physical reason for switching the motor phases or adjusting the timing is to align the magnetic field of the stator with the field of the rotor in order to get the maximum torque for the current used.
In a turning motor the magnetic field of the permanent magnet rotor and the magnetic field you create with the current in the stator windings have to be misaligned by a certian degree for max torque. The stator field pulls the rotor field and thus the rotor will align with the stator field. Then there would be no tourque. That’s why you push the field in the stator further away again. Then the torque stays the same.
A little bit better explanation can be found on the vesc pages under " *Phase advance (other terms: timing adjustment, field weakening)" here: http://vedder.se/2015/01/vesc-open-source-esc/