DIY FFB Wheel Arduino Leonardo. 2 2

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DIY PWM+DIR DC Motor driver with DPDT Relay & MOSFET IRLB3034.

Schematics: PWM-pin11, DIR - pin10

Ai-Wave 2016, some desktop effects on slight set ups. ) 

 

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Find out the config with aiwave 2016 to work. The "constant force" slider, should not be zeroed. And that's it.
The relay driver works!

test run)

 

 

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SOLVED.

The DD config with 540 dc motor was too fast. It works but if gonna make a drift with it, or a like, i.m. release the wheel out, the motor runs away. Made the gear ratio smth like 1:6, and here we go)))

 

https://youtu.be/dMeOD56qgVw

https://youtu.be/CVFK2zGWokk

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And 100% ffb gain. That one was 80%.

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EMC 0.9. Wheelcheck 300 ms.

Constant should be checked) 

 

 

https://youtu.be/dkmy-lq6eL4

 

Figured out that the ffb greatly depends on this slider. EMC is alright for all the other games, with this slider being active) 

Edited June 16 by Sieben

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The relay module is assembled in such a way.

 

  

 

Test.

 

              

 

 

Determination of the freewheeling diodes locations and connection. Just with ordinary 1N4007.

 

  

 

 

And schematics for them.

 

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Advanced pwm+dir driver version is assembled. Got to test with MY1025.

 

 

 

                       

 

Capacitors.

 

 

Capacitors ripple current.

220uf50v x24 + 2200uf50v x2 + 3300uf63v x2

19A

 

220uf50v x24 + 2200uf50v x4

16,5A

 

Total

35,5A

 

 

Flyback diodes 30u60DN ~ 60A

 

Mosfets.

 

IRLB3034 x3pc.  Total allowed power should comprise  ~ 90 / 120A.

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And test with MY 1025 motor 

 

          

 

Cycle test.

 

https://drive.google.com/open?id=18xhuRHq46gW4J--yL3UAsAJd2QK6TINt

 

Wheel rotation rate - 220 rev/min. Wheel weight - 1,4 kg.

 

 

 

Step log 600ms

 

 

 

 

Checking  the MOSFETS temperature during the test run   PWM frequency - 16 khz.

 

Edited July 8 by Sieben

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Made some adjustments with min force for the wheel for the step test 2. To eliminate the zero responce zone. 

For the game have got some other set ups on it. 

 

And new link to encoder. 

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Made some corrections on the "gear to the shaft connection". 

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Noname wheel from oklick. 240mm  0.4 kg weight. )

 

Step test.

300/600

 

 

 

 

 

https://youtu.be/UwYMtKqMirE

 

Some current limiting tests with bulb 60/55w H4 12v. 

And linearity test with it. May be someone can find it useful) The FFB is less with it, but no motor overheat etc. 

 

[Krassi 690]

I follow this interesting project... Can I ask you why you choose chain instead of belt? As Motorbiker I know that to operate proper need to have some loose, if you tight too much it will become too hard and will kill the FFB effects, but in the same if it is too loose it will have some gap I think....There is a reason nobody to produce chain FFb wheel:) But will be happy to hear what you think and have in mind?;)

Cheers!

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I can give a number of builds with bike chains and sprockets, and can, may be even bet, that the only main reason, if the builders switched to the belts drive, is a chain noze, compared to belts ofcourse. On the other issues it is quite a good actually, as it appeared to be later on)

But generally, it's the most quick and dirty simple way to get everything work and be tested) Many aspects underwent under this scope. But ofcourse I too prone swithing to the belts, if build another base, with cars steering rack, i posted here before.    

Yea i made a bit loose to the chain, by adjusting the nuts on the motor mount. So that's not an issue. It do can have the right tension by that. 

Thank you Krassi for following this build) 

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Checked the torque test and a wheel under 12V12.5A Power supply appeared to be of having - 3.67 Nm of force. I made units conversion of the obtained data measured not with 1 meter lever of force, but with 7.5cm force lever. That has 5 kg at that applied point of measurement, fastened just right on that gear sprocket)    

Edited 16 hours ago by Sieben