Torque simulation controllers do not control torque

[avandalen]

Torque simulation controllers do not control torque​

In recent times, there has been a surge in the marketing of motor controllers as torque simulation controllers. This led me to assume that these controllers control the motor torque rather than its speed. However, this turned out to be false, I discovered that these controllers merely regulate the motor voltage, just like regular motor controllers.
See my full article here:

Torque simulation

Here, I share technical solutions that arised during the development of my solar-bike.

www.avdweb.nl

 

[amberwolf]

Thanks for the article; yes this has been discussed here over the years to correct various people's misconceptions because of their incorrect marketing terms.

 

[stancecoke]

However, this turned out to be false

Interesting finding, but I think the control strategy is much simpler. The Kunteng normally just controls the battery current to the value, that is assigned to the recent assist level, with a cadence dependent ramp from standstill. The mechanical output power characteristic you are showing, is simply caused by the effiency vs. speed behaviour of any BLDC motor...

The throttle behaviour can be set in the menu of the display

 

[Comrade]

mechanical output power characteristic you are showing, is simply caused by the effiency vs. speed behaviour of any BLDC motor

And that's why they are even called torque simulation controller, not torque controller.

 

[Blacklite]

However, this turned out to be false, I discovered that these controllers merely regulate the motor voltage, just like regular motor controllers.
See my full article here:

Torque simulation

Here, I share technical solutions that arised during the development of my solar-bike.

www.avdweb.nl

Nowhere does your article show that these controllers are just controlling voltage.
You are showing a relationship between cadence and power.
Do you have further data showing the control paradigm is voltage? I would assume it is actually current instead, and torque is directly proportional to current.

 

[AHicks]

There's speed based PAS, and there's power based PAS. KT's "imitation torque control" is chinglish for power based PAS. It's that simple.....