How Multirotor Scalability is Limited by Stability
And the Opportunity in its Solution
Linar Ismagilov
Modular Integrated Robotics
Problem
Movement of a multirotor is dependent on the tilt of the frame,
making it a constant balancing act for stability.
• Not a problem at sub-5kg, offering a high power/weight ratio.
• However, at sub-25kg, it is more difficult to maintain balance,
affecting performance:
• Rapid power fluctuations
• High response lag
• Wide drift
The multirotor is fundamentally limited for use in heavy-lift.
Solution
• Remove the relationship between frame tilt and movement.
• This makes the MUAV scalable across all weight categories.
• Smooth power fluctuations
• Low response lag
• Precision movement
• Increasing the amount of batteries or payload doesn’t affect
stability.
• Better scalability provides a better heavy-lift alternative.
How we have solved this
Our counter-rotating propulsion units are able to orient
independently from the frame.
Performance
Hover Per Payload
Equal Payload Optimal Configuration
Motors
Frame
Battery
Payload
TOTAL
2.0
4.3
5.7
6.0
18.0
Multirotor (kg)
2.6
2.9
3.6
6.0
15.1
Vectorotor
70
60
Hover Time (min)
Assembly Vectorotor (kg)
Multirotor
50
40
30
20
10
0
0
1
2
3
4
Payload (kg)
5
6
7
How we got here
Sept 2013
Proof of Concept
Showcase idea
Feb 2016
Proof of Technology
Showcase possibility
Aug 2016
Proof of Operation
Showcase flight
Looking forward
Mk1
Untethered Flight
Mk2
Hardware
Mk2
Software
Join us
We’re building a team for Mk2 development. How you can help:
• Control systems design and calibration
• Electrical power and signal design
• Signal processing and filters
• Communication protocols and wireless telemetry
• C++ programming and design
Thanks!
Linar Ismagilov
[email protected]
647-286-8269