Roban - World Class Scale Helicopters

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Alternative motor windings and drive schemes

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  • And a long long time before I ever became friends with Christian I always as did many American boaters feel that Lehner's were some of the absolute best motors money could buy in our sport which is much more amperage heavy than ANY rc airplane. We're seeing amperages over 1000. I don't think he understands that Chris. But again he just want to draw others into banter filled with fallacy. This is still not the way. The way is to accept the proven science try it and then say it did nothing if it didn't then you have to get someone else to conf. He makes all kinds of claims but can only support it with his own site..



    This is why I say give it 90 days to let things cool off so the constructive mind and conversation can return. A devils entire preface is reverse psychology to get you to show him how and or distraction to the focus needed to create. I cant do it . I'm too busy and under time lines. The printer is on the way dont forget! Flussperren is coming. Wedges are coming. Flux switch is coming. There are no secrets, but many different ways to overtake an electric motor that has 5 dollar bearings installed .

    It isn't fascinating for me.
    Hubert
    State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
    Advanced Power Drives

    MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

    Comment


    • Hi Hubert,

      nice bike, motorcross challenges all senses and all muscles. Lots of fun. I rode trials when I was around 20 years old. 125cc Yamaha. There is a large gravel pit and forest near us. The owner also lived there and let us drive there. This used to work, but today the owners are afraid if something were to happen. My eldest son has two Triumpf motorcycles, a 900 and a Coffee Racer 1200. He rides everything that has two wheels, including e-bikes. We have a good connection with the company Urtopia Bikes, my son sells the things on the side. They have wheel hub motors from Aikema that are equipped with stator plates from a Japanese company that have the highest performance data and would also be very good electric aircraft motors. Dalara in Italy has very nice sports cars. The Stradale weighs 800 kg and has 400 hp. The car runs pretty well. Italian car art. A few weeks ago I got a quadrocopter controller with which I can build a motor with many separate machines, with flux locks to prevent mutual interference. Each controller can handle 60 amps on a 6S battery, I think it also goes up to 8S.

      Happy Amps Christian

      The surf board, oh boy I would be ashamed to mess around with it.
      Attached Files

      Comment


      • "A few weeks ago I got a quadrocopter controller with which I can build a motor with many separate machines, with flux locks to prevent mutual interference. Each controller can handle 60 amps on a 6S battery, I think it also goes up to 8S.

        Happy Amps Christian

        The surf board, oh boy I would be ashamed to mess around with it."

        Yes the drive in each quadrant....

        Brenner contra drives along with me have come to similar development ideas with the quad copter algorithms. We hope to implement the full tuning power of BLHELI 32 or something even more sophisticate like TALEGA. Its floating point SVC and its agnostic.

        YGE 320 cant learn a props load and then adjust commutation appropriately based on its AI. All my drives based on Talega can do that. We can build different versions tailor made for its intended application,

        It seems natural when you have the necessary skillset and full cooperative support from ZUBAX ROBOTICS to build one SiCFET based at 100 volts for F100
        Attached Files
        State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
        Advanced Power Drives

        MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

        Comment


        • The triumphs and the ebike is very nice. I want one....LOL!

          YT
          Hugh
          State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
          Advanced Power Drives

          MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

          Comment




          • Hi Christian
            And so smart people understand the concepts we think about.

            See.....some people just don't know anything!

            State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
            Advanced Power Drives

            MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

            Comment


            • Christian,
              Brenner drives one to one 20 x 22 coaxials are on a 7 to 1 with the motor but you know you can stagger the props to optimize the drive. I wonder with the magnetic gear could one land on the optimal speed offset between props while maintaining no torque roll on the airframe?

              Thanks for your time and patience
              Hubert

              BTW 'you are no engineer"
              But....somebody is onboard here currently to suck up every word you post.
              State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
              Advanced Power Drives

              MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

              Comment


              • Hi Hubert,
                yes, whether the aircraft cell rotates or not due to the torque is not a stupid question. The reduction ratios in the magnetic gear are different for the outer ring and for the modulator ring. The torques are therefore always different. If we now made completely identical counter-rotating propellers, one propeller would of course rotate faster. With a speed drive you would want this so that the rear propeller accelerates the airflow even further. But when it comes to aerobatics, you want to be moment-free. You therefore have to make the propeller that rotates faster adjustable. The propeller has various options for adjusting its power consumption. 1. due to the diameter, the smaller the less torque it will absorb, with the same propeller pitch. 2. by adjusting the incline. The steeper the angle of attack, the more torque is required. 3. the leaf depth. The wider a propeller blade, the more torque required increases. With such a magnetic gear, you have to adjust the torque requirement precisely until the torques cancel each other out. Which method you choose depends on the application. With the magnetic gear in the attached picture, the outer ring is held firmly and the modulator ring is held firmly. Depending on the situation, the freely rotating ring rotates clockwise or counterclockwise. However, if both rings are not held in place and can rotate freely, the two rings will simply rotate against each other in the direction shown. If you don't need such high reductions, you can also build a Corntradrive without any gear/magnetic gear. Like from CR Flight, which uses slip rings to transmit the current to the stator. A small asymmetrical torque remains due to the braking effect of the wipers on the slip rings.


                Happy Amps Christian
                Attached Files

                Comment


                • Hi Hubert,
                  It's best if you make an invention for a company that is registered for a patent and as the inventor you are just the company's cleaning lady. Nobody expects a cleaning lady to come up with such an invention for the company. An engineer is expected to have ideas that will benefit the company and also be recognized in a patent. So if a complete stranger invents something, his share of the profits will be paid much higher than if a fully professional developer develops something. Unfortunately, the doctor didn't even think of a patent, registered it and so comes away empty-handed. But he was always very afraid and is still afraid that someone might steal something from him. But you ask yourself what could someone steal from him? ... Nothing ! Because everything he has published on his internet pages comes from others, only he has used others to put himself in the spotlight. So he just has to do the cheapest drudgery and cut burnt windings from stators.

                  Happy Amps Christian

                  Comment


                  • Hi Hubert,
                    the Okon will be annoyed again. Now he finally had the opportunity to introduce something new in model making, but as usual he didn't have the idea. We had the idea and discussed whether magnetic gears with integrated electric motors could also be constructed in a counter-rotating version. The problem is solved. It's just like the sensorless speed controller, the high-pole external rotor, etc. They don't have any ideas of their own.

                    Happy Amps Christian

                    Comment


                    • Originally posted by Clugh View Post


                      Hi Christian
                      And so smart people understand the concepts we think about.

                      See.....some people just don't know anything!

                      ...
                      State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                      Advanced Power Drives

                      MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                      Comment


                      • Originally posted by Chxpress View Post
                        Hi Hubert,
                        yes, whether the aircraft cell rotates or not due to the torque is not a stupid question. The reduction ratios in the magnetic gear are different for the outer ring and for the modulator ring. The torques are therefore always different. If we now made completely identical counter-rotating propellers, one propeller would of course rotate faster. With a speed drive you would want this so that the rear propeller accelerates the airflow even further. But when it comes to aerobatics, you want to be moment-free. You therefore have to make the propeller that rotates faster adjustable. The propeller has various options for adjusting its power consumption. 1. due to the diameter, the smaller the less torque it will absorb, with the same propeller pitch. 2. by adjusting the incline. The steeper the angle of attack, the more torque is required. 3. the leaf depth. The wider a propeller blade, the more torque required increases. With such a magnetic gear, you have to adjust the torque requirement precisely until the torques cancel each other out. Which method you choose depends on the application. With the magnetic gear in the attached picture, the outer ring is held firmly and the modulator ring is held firmly. Depending on the situation, the freely rotating ring rotates clockwise or counterclockwise. However, if both rings are not held in place and can rotate freely, the two rings will simply rotate against each other in the direction shown. If you don't need such high reductions, you can also build a Corntradrive without any gear/magnetic gear. Like from CR Flight, which uses slip rings to transmit the current to the stator. A small asymmetrical torque remains due to the braking effect of the wipers on the slip rings.


                        Happy Amps Christian
                        So optimally you could dial in perfection with on the fly adjustable pitch blades like Howard Hughes and some type of hysteresis or agnostic control.

                        Of course carburetors cannot understand fuel injection units 3 dimensional fuel maps.

                        Rene was almost there Chris but his boss doesn't know enough about electronics or controls and couldn't incorporate his fancy folder props into the concept. What's the matter Erwin didn't show him how to make those?

                        Brenner Contra and I are already in such developmental stages but I cant share any real details about it.

                        😃

                        TTYS
                        Hubert
                        State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                        Advanced Power Drives

                        MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                        Comment


                        • Chris,

                          Is it possible that the magnetic gearbox could absorb more power than the conventional geared gearbox at the same size or possibly smaller?

                          Have you guys ever calculated something like that? Have you found any academic work on the subject matter that speaks to that question?

                          As far as electronic controls for a hint. You have to look at what Simon is doing with the e-tail Kraken and PID loops. I read somewhere though that BLheli architecture could be locked out or something due to the military usage. Something like that. Who know one day even information on forums from the right people could be government censored...

                          This is very possible Chris...
                          The scorpion king is not the only spy but no one needs his information for low power consumption....

                          Somethings are better off in private personal email.

                          Thanks for your time and patience
                          Hubert
                          State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                          Advanced Power Drives

                          MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                          Comment


                          • Hi Hubert,
                            we have not to look around , NASA has such papers , https://ntrs.nasa.gov/api/citations/...0190030282.pdf , and they told 97 - 98% can be done if you do all you know about Magnets and to prefent eddycurrent. With integrated motor it is easyer as there are less loss parts. Do you know efficancy of the Brenner V4;contra ? And they stop selling. Brenner told he has enough parts to start the production next.

                            Happy Amps Christian

                            Comment


                            • Originally posted by Chxpress View Post
                              Hi Hubert,
                              we have not to look around , NASA has such papers , https://ntrs.nasa.gov/api/citations/...0190030282.pdf , and they told 97 - 98% can be done if you do all you know about Magnets and to prefent eddycurrent. With integrated motor it is easyer as there are less loss parts. Do you know efficancy of the Brenner V4;contra ? And they stop selling. Brenner told he has enough parts to start the production next.

                              Happy Amps Christian

                              Hi Chris,
                              Don't know. I never asked. I'm swamped with pyros for it so after a few more I'm going to shut It down for a minute because i need to get the shop set up. Andrew Jesky uses and VLV helical/belt gear drive contra and it is lighter than Brenner Contra. Andrew likes it because he can work on it easier. Brenner and I are working on a composite direct drive coaxial contra. Thats about all I can share about it.

                              Brenner has a manual that may answer your questions. Contra User Installation Guide V4 1-24-2016.pdf


                              As you know with this kind of drive the larger the ratio the better. Its 7:1.

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                              Attached Files
                              State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                              Advanced Power Drives

                              MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                              Comment


                              • Click image for larger version

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ID:	409806 This is what Andrew uses Christian. Its Australian like APD.

                                Happy Harmonics
                                Hubert
                                State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                Advanced Power Drives

                                MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                                Comment


                                • Hey Chris

                                  Kit #07 and all the other ones are real wunderbar!



                                  Look at that bald clown sitting in here...

                                  Ill send you emails.....

                                  And wont waste my time giving that reactive power, torque less, bi filar trash, potted with Elmers glue or none at all any traction. It always ends up this way.

                                  An alternating current trash-Matic with 5 dollar steel bearings to compliment a CoFe stack....


                                  e​


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                                  TTYL
                                  Hubert
                                  Attached Files
                                  State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                  Advanced Power Drives

                                  MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                                  Comment


                                  • Der Punk meinte, er würde dir die Platten zurückschicken. Sag dem Idioten, er soll sie schicken.

                                    Er hat all den Scheiß über dich zu erzählen. Du kriegst die Laminate von dem Arschloch zurück.​

                                    Sincerely
                                    Hubert
                                    Attached Files
                                    State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                    Advanced Power Drives

                                    MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                                    Comment


                                    • CoFe Trash...

                                      Too bad the 20 person speed competitions only feature motors built by the scorpion king and flown by his friends. They only beat themselves...

                                      Its that world class? when you cant name 5 other brands of motors run in the backyard event organized by the same one's that exact the biased moderation.


                                      What a well put together racket to sell pilots garbage.




                                      LMFAO! I got real things to do.

                                      Enjoying life
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                                      My Suzuki's
                                      My RMZ450 4 stroke and my RM250 2 stroke. Jim would have like this Christian. The toroidal head will work in it! i have the blueprints from Jim. Jan Thiel and the like discussed the idea with him Im great detail, JA borrowed from Aprilla.


                                      Did you Know James was friends with the late Picco?





                                      TTYL
                                      Hubert
                                      State-of-the-art PMSM/BLDC motor control solution for aerospace applications and robotics - Télega - Zubax Robotics
                                      Advanced Power Drives

                                      MOTORS FOR RC SURFACE VEHICLES - NEU RACING​​​

                                      Comment


                                      • Hi Hubert,

                                        Did you know that in 2002 I pointed out to Hans Lehner that he should use the E-factor trick for the F3A aerobatic drive for his pilot Michael Ramel with the counter-rotating propellers which are driven by a torque-free planetary gear with a single-stage planetary gear by the counter-rotating propellers double the maximum reduction again. Jörg Marschal, the mechanic who built the test bench that I showed you a few years ago, then manufactured the first counter-rotating drive with a Lehner 1940 internal rotor motor for the Michael Ramel. Michael has presented the drive at several major competitions and amazed the competition. The E-Factor is also a very light aerobatic aircraft. Unfortunately, Michael Ramel took the drive to Hacker and had it copied and manufactured there with Sebastiano Silverstri. Also one who is no better than punk.The Brenner contra drive has exactly the same gearing with the freely rotating, counter-rotating propellers, which adjust their speed depending on the power consumption. By using different reduction ratios, you can also increase the power distribution specifically for one of the propellers. The garden gnome from Dresden didn't understand that at all. Rene also knows very little about the aerodynamics of propellers. Where the punk lives, the residents voted yesterday to get a new leadership for that part of Germany. Thuringia has very many poor people. You voted for the Nazi party AFD. They are racists and what the people there voted for is very bad. It's very sad that people couldn't convince the stupid voters of a real democracy. But it is also the case that the people in this federal state want to stand out from the others; they have a very great need for recognition, say political scientists about the Thuringians.

                                        Happy Amps Christian

                                        Comment


                                        • Hi Hubert ,
                                          the Suzukis are real fun , enjoy to ride this maschines rev them up , they have a wide powerband.
                                          No , i didn‘t know that Jim was friend with G. Picco. But it dosn‘t wonder as such motor master icons knew them al from competition. I meet Gualtiero Picco at Galerate and Milan Idroscala . Galerate at thethered line speedcars and Idroscalo at boating copetition. He was allways a real mechanik , help us tuning the motors. I run an Crapshoter outrigger with 13 ccm , 80 size motor. This was my old electric record boat , much to light for this power motor , it likes dancing on the prop , not easy to hold the sponson down.
                                          in memory: https://www.redrc.net/2011/05/gualti...cco-1940-2011/

                                          Happy Amps Christian

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