Krohpit Topol-M 16x16 base E-Maxx

Tested power station with a spark ignition system and with the new rectifier module.
The load using a spiral of nichrome wire.
The only caveat that the spirals they heating resistance increases and the current drops by more than twice.


PCB rectifiers yet not completed due to lack of some details, but suitable for testing. In the rectifier applied Schottky diodes DSS60-0045B (If = 60A, Vr = 45V, Vf = 0,57 V).

Diodes are attached to the radiator through the insulating thermal pads.
Power paths on PCB soldered copper wires to reduce the resistance. Currents can exceed 100A.
Besides diodes put current sensors ACS758KCB-150B (current measurement in two directions to 150A) to the battery and ACS755LCB-130 (current measurement in one direction to 130A) output to power motors of transmission.
On one side the wire are soldered to the left and right battery and left and right motor of  transmission.
Batteries are connected to the generator through a rectifier protection diodes from reverse current (Schottky diodes IR 100BGQ015 If = 100A, Vr = 15V, Vf = 0,38 V).
On the other side the wire are soldered to the starter controller output  and three-phase input to the generator.
Exit to the starter is powered through the protection diodes from reverse current (Schottky diodes DSS60-0045B).


Thermo photos of the working motor to the imager.


Video


Spark Ignition System pleased, engine start instantly when opening flaps carburetor.
Temperature sensors work, but maybe there is measurement error, I do not calibrated to temperatures above 100 ° C.
But current sensors incorrectly displayed on the screen will look for errors in the controller program.
Well, in this time did not forget to take a voltmeter and an ammeter.
Did a load test with disconnected battery voltage drops to 5.5 volts at 40 amps, the motor is unstable.
Have a suspicion on poorly adjusted the ignition and quality of the mixture.
New carburetor did not put together with the new ignition system.
I still have a weak cooling fan, which is only enough to idle, so the tests were short.
Rectifier radiator and generator is not particularly heated on short tests.

More photo - http://www.krohpit.ru/2013/11/hybrid-car-power-station-eng.html

Rarely go to the forum - summer ...
So continue
17.05.2014 Made the mount for carburetor Walbro WT-499.

Small tube connects the motor crankcase with vacuum pump of carburetor.

03.07.2014 So, problems with parcells resolved, all missing parts in place


Decided to use for a hybrid control unit and vehicle controller Crius Multiwii AIO Pro v2, due to the larger number of ports.
Addition to the various ports, gyroscopes, accelerometers on this board soldered flash-memory, it is possible to get used in the future to save the telemetry.

controller Crius Multiwii AIO Pro v2 - http://www.ebay.com/itm/281316963752

Housing for power module made of aluminum radiator and aluminum profile, it sealed.
Initially, I received information from the current and voltage sensor with an ADC of the microcontroller, but it has little ports (8 sensors and 8 for the radio receiver), also had to be used to transmit analog signals long multi-conductor ribbon cable.
So put an external ADC (12-bit, 8-channel) directly into the power module.
This ADC module is connected to the microcontroller via I2C bus using only 3 wires.
To power the ADC (Vref) and current sensors installed on a separate 5V regulator, since it strongly depends on the accuracy of measurement.
Measured voltages are applied to the ADC through a divider resistor (150k and 51K), ie, the measured voltage with a range of 0-20V is converted to 0-5V range.



I2C ADC - http://www.robotshop.com/en/8-ch-12-bit-i2c-analog-digital-converter.html
power converter 5V - http://www.ebay.com/itm/131162659147

Put a larger color RGB OLED display with a resolution of 160x128 pixels.
The display is connected to the I2C bus as well as an external ADC.
The display supports hardware fonts of different sizes and hardware graphics accelerations (lines, squares, circles, etc) that you will need later.


RGB OLED display 160x128 - http://www.digole.com/index.php?productID=883

Telemetry is sent using NRF24L01+ transceiver to remote control of the vehicle.
Transceiver is connected to the microcontroller via SPI bus. Transmission frequency 2,4 GHz.
I used version NRF24L01+ transceiver with an amplifier and an external antenna, it provides a range of line of sight up to one kilometer.
Small board under transceiver - power converter 3.3 V.


NRF24L01+ transceiver - http://www.ebay.com/itm/131132832737
power converter 3.3V - http://www.ebay.com/itm/161235913779

Telemetry receiver made on the controller Multiwii SE, at the receiving unit will display the same as on the vehicle - RGB OLED 160x128.


To cool the ICE will try two small turbines 50mm EDF.
To install them you need to make air ducts.

EDF 50мм - http://www.ebay.com/itm/301024579891

27.07.2014 Replaced the motor/generator Turnigy AquaStar T20 3T 730KV to Turnigy Aerodrive SK3 - 6374-192kv this is due to the fact that the first version gave out the necessary voltage for operation with 3s LiPo batteries only at maximum speed engine. The second version should provide such an option already idling engine (about 2000 rev / min), the same can increase the number of LiPo batteries in series to increase board voltagethat allows to increase power and efficiency.




Conducted another test.
Stayed computer type cooling fan 120mm, has not yet made fasteners for EDF.
New motor/generator Turnigy Aerodrive SK3 - 6374-192kv was more high-torque, but like last motor/generator can not always starting the engine. In my opinion this is a common problem sensorless systems at start rotate, maybe my controller firmware feature ESC Mamba Monster.
Looking ahead repeat radioman commandment - do not rotate simultaneously two handles.
So I replaced the carburetor and the motor/generator.
Engine started, I started to adjust the carburetor, but there were glitches in setting the minimum idling and setting maximum gas.
The main problem is that the maximum speed does not exceed 3500 rev / min and the reaction to the gas throttle was almost no, quality mixture for the most part changed only the exhaust smoke.
Load do not use.
I looked at the telemetry, and there unrealistic values of currents in batteries, the voltage is normal.
Touched the radiator rectifier, and it's hot.
At the working Engine disconnect the battery and then the engine started to sing as laid and throttle responds correctly.
I looked at the voltage rectifier - about 40V!!!
Tried to include the load, but Nichrome spiral were picked up under 12V, 40V is obtained a large current that Engine stops immediately.
Further sad things happen.
After a few runs without batteries burn battery protection diodes from reverse current ESC. Trying to connect the battery directly to the ESC, when I turn on ESC during initialization started a little twitch motor, then when I try to start the system burnt ESC with a strong smoke.
While I can not say for sure - short circuit in motor or burned down transistors in ESC.
Incline to the second, because when battery is connected the had a lot of entries and it worked fine.
ESC Mamba Monster maximum targeted at 6S LiPo, ie about 25V, when the battery is disconnected it delivers about 40V, which caused internal problems, the battery connections just burned output transistors.

Why is it so affects the battery is disconnected.
Battery again worked as a voltage stabilizer, as I already had at the very first system startup, but because I already stand diodes protect against reverse current. Only here diodes I selected on the basis of a large direct current and low voltage drop so low reverse voltage - 15V. I thought that would be enough, but here with a generator replacement easily exceeded it twice. Hence, there is a problem that Engine persistently gained more than 3500 rev / min. Strange that still did not burn rectifiers against overload because LiPo batteries internal resistance is very small, an almost short circuit after the rectifier.
Batteries again spoiled overcharging - got about 4.35 volts per cell after all the experimentation.
The computer fan also burned after increasing the voltage up to 40V.

Total: carburetor must first be configured and start experimenting with the Engine idling, increasing speed and control all the currents and voltages.

Now a long pause - need to replace some of the elements.

Still made ​​for him FPV monitor with built-in battery and receiver - http://www.krohpit.ru/2014/07/fpv-monitor-aio-eng.html

Oo c'est carrément un système de la NASA !!!!

OO juste   

Se mec est un génie *-*

La NASA pour un Russe

C'est clair que ça me laisse rêveur un projet pareil   

@Gsx : grave !!!!!

Mais du coup si je comprend bien c'est une propulsion hybride? Le moteur thermique entraîne un moteur électrique qui recharge les accu quand ils sont décharge et le moteur elec fait une assistance au moteur thermique quand les accu sont full ?
Du coup si je me trompe pas comment un moteur brushless peut générer du courant Electrique ( j'ai l'impression sur les videos et photos que c'est du brushless ).

C'est comme sur ma Yaris hsd  

Hi! The longest Rc all around the world?? Incredible!!

woww awesome job !!

Magistral !

Prepared a set of springs with shocks. 32 pieces for the entire machine.

Traxxas Shocks E-MAXX TRA4962 Big Bore with E-Maxx Black Three Rate Springs Set (8 pcs) Krohpit Editions three times stiffer original - 5kg compression instead of 1,6kg in the original E-MAXX.

Top part of the frame.

It's just AMAZING !!

I can't wait to see the finished project ! It's the craziest machine I've ever seen !

:-)

@Krohpit
Alway Great Job Man !

Hello Krohpit, All,

It is completely amazing      
C'est complètement incroyable      

Very nice work      
Très beau travail      

Thank for sharing your project with us
Merci de partager votre projet avec nous

Have a nice day.
Bonne journée.

Renaud

+1 just amazing.
+1 Juste incroyable !

@A tous ceux qui post.
In English et en Français, please.

Adjust the steering servo.
Each wheel is the personal drive for implementing additional functionality Control as it was on the BTR-80.
Now axes are controlled similarly to the original car - 1,2,3,6,7,8.
The axes 4 and 5 are fixed, but the servo mount made for the future.





Installed servo for shifting gear in the gearbox.


Comparison with a plastic model of the old Topol scale 1/72


Load test frame

just one question: where are you going to ride with?

very impressive....thing...

waiting for more evolution.

BRAAAVVVOOOOOOO.

It's a great job. I'm waiting to see a video of ride.

C'est du bon boulot. J'attends une vidéo d'une sortie.

@Tous
En Anglais et en Français, please.

Installed motor-generator to the frame with rubber mounts

Wow travail de maître!!!

Wow real good job,you are a master!!!

Vraiment superbe, je n'ai pas d'autres mots.