Taming the Tail-Sitter: Hover to Forward Flight Explained
Thanks to PCBWay for sponsoring this video--check out their website for an instant quote on custom PCBs, 3D printing, or even CNC machined parts: https://www.pcbway.com/?from=Nicholas
In theory, tailsitter VTOL aircraft are incredibly simple--just add a wing to something like a quadcopter, pitch it over 90 degrees, and cash in on the sweet, sweet efficiency benefits of forward flight. But there are actually 4 key challenges to address in the flight controller for a smooth transition between hover and forward flight.
Patreon: https://www.patreon.com/NicholasRehm
dRehmFlight VTOL flight controller code used in this video: https://github.com/nickrehm/dRehmFlight
Tailsitter specific code: https://www.rcgroups.com/forums/showpost.php?p=51594219&postcount=1406
Drone flight controllers that support transitioning VTOL configurations often simplify the complex task of performing a transition to the flick of a switch. This is awesome for people who like stuff that just works, but terrible for people that like to understand how things work. So how do you actually tell a flight controller to perform a VTOL transition? Rather, how does a flight controller tell the airplane to perform a transition? Tailsitter VTOLs need extra care in the flight controller through their transition, mainly because the definitions of roll and yaw control with respect to the body flip between hover and forward flight. This requires careful remapping of stabilized controls out to the motors and servos, in addition to a flip of the fundamental aircraft frame of reference. Another key to a smooth transition is tuning PID gains separately for each flight mode, and ensuring a seamless and smooth fade between all of these flight mode differences. This video covers how I did this using a little bit of custom code in my opensource flight controller, dRehmFlight. If you found this video interesting, don’t forget to subscribe so you can be up to date on future projects like this!
Intro: 00:00
Flight Controller Basics: 00:54
Problem 1 - Switching Roll & Yaw: 02:58
Problem 2 - Switching Frame of Reference: 04:30
Problem 3 - Gain Staging: 06:58
Problem 4 - Smoothing it Out: 08:04
Conclusions & Crashes: 09:45
#VTOL #Tailsitter
Видео Taming the Tail-Sitter: Hover to Forward Flight Explained канала Nicholas Rehm
In theory, tailsitter VTOL aircraft are incredibly simple--just add a wing to something like a quadcopter, pitch it over 90 degrees, and cash in on the sweet, sweet efficiency benefits of forward flight. But there are actually 4 key challenges to address in the flight controller for a smooth transition between hover and forward flight.
Patreon: https://www.patreon.com/NicholasRehm
dRehmFlight VTOL flight controller code used in this video: https://github.com/nickrehm/dRehmFlight
Tailsitter specific code: https://www.rcgroups.com/forums/showpost.php?p=51594219&postcount=1406
Drone flight controllers that support transitioning VTOL configurations often simplify the complex task of performing a transition to the flick of a switch. This is awesome for people who like stuff that just works, but terrible for people that like to understand how things work. So how do you actually tell a flight controller to perform a VTOL transition? Rather, how does a flight controller tell the airplane to perform a transition? Tailsitter VTOLs need extra care in the flight controller through their transition, mainly because the definitions of roll and yaw control with respect to the body flip between hover and forward flight. This requires careful remapping of stabilized controls out to the motors and servos, in addition to a flip of the fundamental aircraft frame of reference. Another key to a smooth transition is tuning PID gains separately for each flight mode, and ensuring a seamless and smooth fade between all of these flight mode differences. This video covers how I did this using a little bit of custom code in my opensource flight controller, dRehmFlight. If you found this video interesting, don’t forget to subscribe so you can be up to date on future projects like this!
Intro: 00:00
Flight Controller Basics: 00:54
Problem 1 - Switching Roll & Yaw: 02:58
Problem 2 - Switching Frame of Reference: 04:30
Problem 3 - Gain Staging: 06:58
Problem 4 - Smoothing it Out: 08:04
Conclusions & Crashes: 09:45
#VTOL #Tailsitter
Видео Taming the Tail-Sitter: Hover to Forward Flight Explained канала Nicholas Rehm
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Making a Drone Smarter With Motion PlanningdRehmFlight VTOL - Teensy (Arduino) Flight Controller and StabilizationGround Effect Vehicle Autonomous Vision-Based TrackingRadio Controlled SpaceX StarhopperDroneCase: The DIY Phone Case That FLIESWorld's Fastest FLYING RC Drift CarThe Difference Between a Drone Flight Controller and Flight ComputerFlying Inverted PendulumRadio Controlled SpaceX Starship CRASHSetting Up Your Radio Connection - dRehmFlight VTOLThe Extraordinary Redundancy of Spinning Drones - Part 3Is THIS the Most Versatile Aircraft Design? (Forward Flight Testing) - Part 2How the Flight Controller Code Works - dRehmFlight VTOLUn-Folding a Quadcopter to Increase Efficiency - Part 1Building the Flight Controller Hardware - dRehmFlight VTOLThe Spinning Drone Paradox - Part 1Mounting and Configuring the IMU - dRehmFlight VTOLRadio Controlled SpaceX Starship Belly FlopCycloidal Rotor Airplane: The CycloplaneCycloidal Rotor Drone: The Cyclocopter