I have read that an ESC is not using the same cooling internal circuit while operating at 100% or at 50 / 75%, and that therefore, the ESC cooling system will be more powerful at 100% than at 50 / 75%, so it advised to use the right prop to allow the ESC to run at 100%

What is the logic behind this calculation, and is that correct ?

I am using 3000w 100KV 12S motors and a 140A ESC.

Thank you 

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • A drone who has engines at 100% can not balance. You must have 10% - 20% to keep the balance.

    MOSFET + PWM ... no difference in efficiency 0% - 100%.

  • Do you know whether you were reading about ESCs designed for brushed motors or brushless motors?

    I know of ESCs that handle more power when operating at 100%... but that was because they effectively just connect the DC brushed motor straight to the battery at full throttle (no switching, just on... where less switching = less heat generation). But the type of ESCs we use on most drones these days simply cannot do anything like that as they use brushless motors that are very different and cannot simply be connected to a DC source (switching is always necessary, regardless of throttle or desired output).

  • I am fascinated by the idea that an ESC used on a multirotor has a cooling system. Are you speaking of the prop wash? Where did you read this?

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @gclue_akira: 柏の葉で走行させてるjetracerの中身 #instantNeRF #jetracer https://t.co/giVvuE4hP7
Jul 4
DIY Robocars via Twitter
Cool web-based self-driving simulator. Click save when the AI does the right thing https://github.com/pncsoares/self-driving-car
Jul 4
DIY Robocars via Twitter
RT @donkey_car: Human-scale Donkey Car! Hope this makes it to a @diyrobocars race https://www.youtube.com/watch?v=ZMaf031U8jg
Jun 25
DIY Robocars via Twitter
Jun 25
DIY Robocars via Twitter
Jun 16
DIY Robocars via Twitter
RT @GrantEMoe: I won my first @diyrobocars @donkey_car virtual race! Many thanks to @chr1sa @EllerbachMaxime @tawnkramer and everyone who m…
Jun 13
DIY Robocars via Twitter
RT @gclue_akira: JetRacerで自動走行したコースを、InstantNeRFで再構築。データセットは別々に収集 #jetracer #instantNeRT https://t.co/T8zjg3MFyO
Jun 13
DIY Robocars via Twitter
RT @SmallpixelCar: SPC 3.0 Now the motor also works. This car is doable. I just need to design a deck to mount my compute and sensors. http…
Jun 13
DIY Robocars via Twitter
RT @SmallpixelCar: My new car SPC 3.0. https://t.co/CKtkZOxeNQ
Jun 7
DIY Robocars via Twitter
RT @SmallpixelCar: High speed at @diyrobocars thanks @EdwardM26321707 for sharing the video https://t.co/o4317Y2U1S
Jun 7
DIY Robocars via Twitter
RT @SmallpixelCar: Today at @RAMS_RC_Club for @diyrobocars. Used @emlid RTK GPS and @adafruit @BoschGlobal IMU. Lap time 28s https://t.co/R…
May 28
DIY Robocars via Twitter
May 15
DIY Robocars via Twitter
May 14
DIY Robocars via Twitter
May 13
DIY Robocars via Twitter
RT @f1tenth: Say hi to our newest #F1TENTH creation for @ieee_ras_icra next week in Philly. It’s going to be huge! 😎 🔥 @AutowareFdn @PennEn…
May 13
DIY Robocars via Twitter
May 11
More…