HobbyWing Platinum V4 ESCs Speed-governing Function
1 Explanation for ESC Speed-governing
Establish the “Motor RPM-Throttle Amount Curve” via the speed standardization, and then set the throttle amount to some fixed
value on the transmitter, in that condition, the motor will output the RPM corresponds to the throttle amount and keep rotating at that
speed.
• In the “Helicopter (Elf Governor)” mode, the ESC won’t save the “Motor RPM-Throttle” curve after it’s disconnected from the battery,
so every time the ESC is connected to the battery, it will standardize the speed, otherwise you cannot use the speed-governing
function normal
ly. In this mode, due to the differences like batteries’ different discharge capacity, the standardized RPM is a little
different every time. In consequence, at the same throttle amount, the RPM may be a bit different when using different batteries, but
th
is won’t affect the speed-governing effect.
• In the “Helicopter (Store Governor)” mode, the ESC will save the “Motor RPM-Throttle” curve after the speed standardization. So
after adjusting to this mode from any other mode, you need to standardize the speed when the ESC is connected to the battery for
the first time and you needn’t standardize the speed again after disconnecting the ESC from the battery first and then connecting it to
the battery again. If adjusting to any other mode from this mode and savi
ng the “Motor RPM-Throttle” curve, and then adjusting back
to this mode, the “Motor RPM-Throttle” curve saved by the ESC will be cleared, and you need to standardize the speed once again.
If your ESC remains in this mode in future, then it will always
carry out its operation as per the saved “Motor RPM-Throttle” curve.
When standardize the speed for the first time, we recommend using a battery in good condition. After the RPM standardization,
change another battery with the same number of cells to fly your aircraft. At the same throttle amount, the RPM should be consistent
with the RPM of the first flight.
2 RPM Standardization
1) Theory of RPM Standardization
During the RPM standardization, the ESC will establish a “Motor RPM-Throttle” curve by itself based on the actual battery voltage
and the actual KV rating of the motor. Therefore , you need to standardize the speed with a fully charged battery, and ensure the
main blade pitch is 0° (in order to make the helicopter not take off).
In general, people
use the default “Throttle Curve & Pitch Curve” of the transmitter (as shown below) when they standardize the
speed.
Attention:
Please ensure the main blade pitch is 0° and the throttle amount is above 40% (we recommend using 50%) when
standardizing the speed.
2) Procedures of RPM Standardization
• We recommend using the default “Throttle Curve & Pitch Curve”. (If you don’ t want to use the default setting, then please ensure
the throttle amount is 50% and the main blade pitch is 0° when the motor rotates.
• Turn on the transmitter, move the throttle stick to the bottom position and then wait for the ESC completing the self detection.
• If you’ve set the “throttle cut” function, please lock the “throttle cut”, and then move the throttle stick to the 50% position and then
unlock the
“throttle cut”. If there is no “throttle cut”, then you can move the throttle stick to the 50% position directly.
• The ESC drives the motor to rotate, the main blades start to accelerate slowly (because the main blade pitch is 0°, so the helicopter
won’t take off, but you still needs to be careful), you need to wait for the acceleration completing and the speed getting stable, and
then lock the “throttle cut” or move the throttle stick to the bottom position.
