Vibrate the brake pedal when wheel's blocking

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Re: Vibrate the brake pedal when wheel's blocking

Postby yokoyoko » Fri 2. Aug 2013, 18:51

All dc motors with a decentral mass for vibration are really small or crazy expensive. What about using something like a mabuchi 540 and attach a weight (also decentral) to its 3,17mm axis?
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Re: Vibrate the brake pedal when wheel's blocking

Postby vicpopo » Fri 2. Aug 2013, 19:40

Hi Yokoyoko,

Why you wouldn't use the motors from vibrating joystick as other made ?
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Re: Vibrate the brake pedal when wheel's blocking

Postby yokoyoko » Sat 3. Aug 2013, 11:13

Hi Vicpopo,
I have no real experience!? Perhaps these "joystick" motors are fine. I just know the solution fanatec is using for their clubsport pedals - and in my opinion the used motor could be alot stronger for better immersion. At the clubsport pedals it feels kind of toyish.
But as said just a suggestion.

The greatest would be if someone have the knowledge to "rewrite" the bass shaker plugin to directinput. Would be cool to use a multichannel soundcard + amp and use a "real seperate" bass shaker for pedals aswell. I have a shaker at my brake pedal atm but all effects are transfered to this (as to the others aswell). If you could split effects per channel this would be great!

On the other hand a multichannel soundcard + amp + shaker is much more expenensive as a arduino + dc motor ?!? ;-)

What is yours opinion?
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Re: Vibrate the brake pedal when wheel's blocking

Postby vicpopo » Sat 3. Aug 2013, 11:36

Hi Yokoyoko,

My opinion is like we all proceed by testing all solutions ...

:D
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Re: Vibrate the brake pedal when wheel's blocking

Postby RacingMat » Sat 3. Aug 2013, 12:53

Yes, I agree : I want strong effects in the pedals for the best immersion feelings ! no cheap vibration

My approach will be to test my available "hacked" motors : RC plane motors, Wingman logitech FFB motors...
The H-bridge board I intend to use can handle 2 x 800 mA, I'll have to measure the current while running.

I'll use an electrical connecting block ("domino") to make an excentric mass
1934

and the Wingman FFB logitech Joystick as a USB board
1933
after analysis, there no motors dedicated to vibration inside : the force motors are used as well to shake (back/forth).

For bass shaker plugin, it's a good idea Yokoyoko : once you got an amp, it could be cheap to add Loud Speaker buttkicker on pedals... but I won't explore the subject now ! I'm overwhelmed (3DOF and pedal, and lurking to Mizoo Wheel ...)
2 DOF playseat : arduino, motomonster, 12V truck wiper motors
http://www.x-sim.de/forum/viewtopic.php?f=37&t=943
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Re: Vibrate the brake pedal when wheel's blocking

Postby yokoyoko » Sat 3. Aug 2013, 18:31

A normal lock brake in a car has a frequency of ~10hz and a "bosch race brake" uses around 15hz... this would be important too finding the best solution. Perhaps rc motors are to fast for this task... we will have to test.
Good news my arduinos (and dashboard parts) arrived today from dx :-)
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Re: Vibrate the brake pedal when wheel's blocking

Postby RacingMat » Sat 3. Aug 2013, 22:26

10Hz !
-> all DC motors will turn too fast
i'll have to find a solution ... probably moving it back and forth at this frequency ?...

my plugin works fine !! :ugeek:

How do you test the fps ? i'd like to know how much it impacts performance
2 DOF playseat : arduino, motomonster, 12V truck wiper motors
http://www.x-sim.de/forum/viewtopic.php?f=37&t=943
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Re: Vibrate the brake pedal when wheel's blocking

Postby yokoyoko » Sun 4. Aug 2013, 10:35

Hi mat,
Gratz for your working plugin!!!

If we run dc-motors back and forward the current probably will become to high? The current at starting (and during direction change) is much higher as if the motor is running. Look at this example (a 13 turn motor... much to fast for your project indeed):
http://www.wuelfing-web.de/imws_homepage/motde.gif
The current during start is around 90A and at max revs ~ 6A.

Do you mean ingame fps? I always want to be my fps higher 60fps. Better would be ~100fps. If i get under 60 i notice input lag on my steering wheel and the motion of the sim gets worse, as the motion is updated with every frame!
You can use programs like fraps but i dont like it, or you use the ingame fps counter of the game. F.e. with my gtx680 4gb Edition and triple screen i have to turn down shadows, aa etc in pcars alot to get smooth input reaction and good motion.

If you think your plugin kills fps measure on time without it and after with same settings with the plugin?.
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Re: Vibrate the brake pedal when wheel's blocking

Postby johnnyfive » Fri 15. Nov 2013, 11:26

Hi RacingMat.

Can you tell me why did rfactor2python complicate things by the time you used it?

It's supposed to do the opposite! ;)

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Re: Vibrate the brake pedal when wheel's blocking

Postby RacingMat » Tue 19. Nov 2013, 19:42

johnnyfive wrote:Can you tell me why did rfactor2python complicate things by the time you used it?


Because it's an additional brick... rFactor / internal plugin / python / arduino / Hbridge / motor
Instead, if the internal rFactor plugin is modified to send data over USB serial, it's straightforward : directly from game plugin to Arduino board. 8-)

I'll post some pics and some more comments about the tuning that is needed.
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http://www.x-sim.de/forum/viewtopic.php?f=37&t=943
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