Platinum PRO V4 Governor Function

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 normally. 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

this 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 saving 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.

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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.
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• The ESC will stop driving the motor, the main blades start to slow down and then stop rotating. • The RPM standardization completes. Attention: Please calibrate the throttle range before the RPM standardization. There will be no need if you’ve carried out the ESC/Radio Calibration when the first time you used this ESC or you didn’t restore the settings to factory defaults after the calibration (changing the transmitter & receiver is an exception).
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Formula: Main Blades` RPM (at the 100% throttle)=Max. RPM÷ (Motor Poles ÷2)÷Drive Gear Ratio The Main Blades’ RPM (at the 100% throttle) in the example is: 157*1000÷(10÷2)÷(120÷13)_3400 RPM If the Main Blades’ RPM needs to remain at 2700RPM during the 3D flight process, then you need to set the throttle amount (set in the Helicopter “Store Governor” mode) to 2700÷3400_ 0.8, that is you need to set the throttle amount to 80%. At this time, you need to set the value of the 3D throttle curve (i.e.