Heyho,
in den RCGroups gibt es erste Infos direkt von DJI zum E800 Propulsion System:
http://www.rcgroups.com/forums/showpost.php?p=29787838&postcount=2697
Punkt 2 finde ich nicht ? 
E400 ?
Spannend, es tut sich grad richtig viel bei DJI.
Zuletzt erst die neue Ausführung vom E600, aktuell die neuen Phantom 2 Upgrades.
Mal schauen, was noch alles 2015 kommen wird
in den RCGroups gibt es erste Infos direkt von DJI zum E800 Propulsion System:
http://www.rcgroups.com/forums/showpost.php?p=29787838&postcount=2697
E800 is on its way to the market. While it is taking final tests, I would like to introduce its feature to every friends here. Starting from today, one feature or two each day. Hopefully we can finish the introduction before the official release.
0. 800g/motor recommended thrust.
It goes withoug saying.
1. Ever Higher Slot Fill Factor.
As many of you may know, slot fill factor describes how much copper do you wind into the slots. The higher the fill factor, the higher the torque constant, the lower the stator armature resistency, the higher effeciency you have. For short, slot fill factor is about all, its one of the few parameters in motor design that is positive to all motor performances.
Since E600/3508, we have adapted the single strand winding, though very difficult to handle, it provided a completely new level of slot fill factor that you can achieve. As a result, DJI 3508 keeps the record of slot fill factor in the makert untill now. In E800/3510, we have refined our manufactering process and achieved even higher slot filling factor. The DJI 3510 motor is more efficient than its little brother 3508. One byproduct of the neat winding is that the airflow path is larger than the multiple strand winding, and thus the motor can be better cooled.
3. 345 mm/13.5 inch new rotors, now comes with two different mounting options, both with quick release mechanism.
If you think 13.5 inch rotor is just a magnified 1242 prop, you are wrong. Yes, many players in this market simply scale up or scale down one aerodynamic design to have a full familiy of props, but we are not one of them. The whole rotor is designed from the sketchs to maximize its perfomamce. New carbon fiber compond is used to produce the 13.5 inch rotor, which allows us to keep the chord length short while expanding its wing span and keep its stength, to minimize its momentum of inertial. We know, the acceleration of thurst is as important as the maximium thurst.
The standard self-tightening hub is compatible with E600 3508 motors, E600 users who want to trade high wind stability with longer indurance could try it, but taking their own risk.
As for the second mounting mechanism, please allow me to keep this secret to the end, giving our IP guys enough time to submit the patent.
That is for today,
Cheers,
Dr. Turbo
4. Programmable ESC
Yes, just as we have discussed in earlier post, DJI propulsion system is haunted by ESC firmware compatibility for a while. Becauce we constantly upgrade our motor and our ESC software was written so to optimize a certain motor. This approach brings higher efficiency as well as troubles for our old custmer, who want to use their old ESC to drive the new motor.
This time, we want to solve this problem once and for all. Starting from E800, all DJI propulsion system ESC will be equiped with a data port. Firmwares could be flashed into the ESC as long as the hardware supports it. For example, E800 ESC, namely ESC 620S will be supported as long as the R&D team is here, new algorithm and control strategy could be enjoyed by early customers. When new motors are released, and the hardware of ESC 620S is capable to drive it, we will release a corresponding firmware for it. You could mount the motor and flash the ESC and good to go.
ESC 620S will be pre-loaded with 3508/3510 firmware at the factory. we will also release firmware for 620S to support 2212 and 2312 motor.
That is for today.
Dr. Turbo
0. 800g/motor recommended thrust.
It goes withoug saying.
1. Ever Higher Slot Fill Factor.
As many of you may know, slot fill factor describes how much copper do you wind into the slots. The higher the fill factor, the higher the torque constant, the lower the stator armature resistency, the higher effeciency you have. For short, slot fill factor is about all, its one of the few parameters in motor design that is positive to all motor performances.
Since E600/3508, we have adapted the single strand winding, though very difficult to handle, it provided a completely new level of slot fill factor that you can achieve. As a result, DJI 3508 keeps the record of slot fill factor in the makert untill now. In E800/3510, we have refined our manufactering process and achieved even higher slot filling factor. The DJI 3510 motor is more efficient than its little brother 3508. One byproduct of the neat winding is that the airflow path is larger than the multiple strand winding, and thus the motor can be better cooled.
3. 345 mm/13.5 inch new rotors, now comes with two different mounting options, both with quick release mechanism.
If you think 13.5 inch rotor is just a magnified 1242 prop, you are wrong. Yes, many players in this market simply scale up or scale down one aerodynamic design to have a full familiy of props, but we are not one of them. The whole rotor is designed from the sketchs to maximize its perfomamce. New carbon fiber compond is used to produce the 13.5 inch rotor, which allows us to keep the chord length short while expanding its wing span and keep its stength, to minimize its momentum of inertial. We know, the acceleration of thurst is as important as the maximium thurst.
The standard self-tightening hub is compatible with E600 3508 motors, E600 users who want to trade high wind stability with longer indurance could try it, but taking their own risk.
As for the second mounting mechanism, please allow me to keep this secret to the end, giving our IP guys enough time to submit the patent.
That is for today,
Cheers,
Dr. Turbo
4. Programmable ESC
Yes, just as we have discussed in earlier post, DJI propulsion system is haunted by ESC firmware compatibility for a while. Becauce we constantly upgrade our motor and our ESC software was written so to optimize a certain motor. This approach brings higher efficiency as well as troubles for our old custmer, who want to use their old ESC to drive the new motor.
This time, we want to solve this problem once and for all. Starting from E800, all DJI propulsion system ESC will be equiped with a data port. Firmwares could be flashed into the ESC as long as the hardware supports it. For example, E800 ESC, namely ESC 620S will be supported as long as the R&D team is here, new algorithm and control strategy could be enjoyed by early customers. When new motors are released, and the hardware of ESC 620S is capable to drive it, we will release a corresponding firmware for it. You could mount the motor and flash the ESC and good to go.
ESC 620S will be pre-loaded with 3508/3510 firmware at the factory. we will also release firmware for 620S to support 2212 and 2312 motor.
That is for today.
Dr. Turbo
E400 ?
Spannend, es tut sich grad richtig viel bei DJI.
Zuletzt erst die neue Ausführung vom E600, aktuell die neuen Phantom 2 Upgrades.
Mal schauen, was noch alles 2015 kommen wird
