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Post Info TOPIC: Suzuki VanVan RV125 help wanted
ant


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Suzuki VanVan RV125 help wanted


Hi all,

First of all, Im new to this forum, so thanks all for the bunch of interesting info shared.

I own a Suzuki VanVan, a little one with 125 motor, but funny to ride, nice looking and fuel saver for the city day.

RV125 model has a tacho, but not a RPM counter and not a gear indicator.

I learnt to ride three years ago and I remember that it would be fantastic to know which gear was engaged or revs to shift !! This little motor have 6 gears!!

Im plannig to get codes for a few basic commands, but I cant find in the forum a sort of command byte mapping of the so called KWP packages

Here, there are a few JPG links but seem to be broken.

KWP package explained 1 and 2.JPG

http://ecuhacking.activeboard.com/t28314610/engine-data-from-gen2/

My goal is retrieving a few basic data, RPM, motor temp, gear maybe? and show them real time using a lcd panel on the handlebar, using a microcontroller.

Could you please point me in the right direction, or at least send me these JPG files?

Thanks in advance

By the way...does anybody knows if ecueditor works for my bike?



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Hi ant,

to determine which bytes correspond to which parameters, you may look at answer frames from ECU and compare them when you set the gear to 1, and when you set it to 2 for example.
The current gear position is probably represented by an entire byte (0 for Neutral, 1 for 1, 2 for 2, and so on up to 6)
For RPM, there is a computation, look posts on this forum, you will find the answer

But one question, are you sure the ECU may determine the gear ? (check ecu wiring schematics).

good luck



-- Edited by cranor on Friday 19th of July 2013 11:14:48 PM

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ant


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Thanks Cranor for your reply.

No, I really dontt think my ECU knows about the gear position :( I've cheched the electric system datasheet and nothing to do with this.

But I would be happy just with the RPM's.

A last question... Im not sure after reading the forum if the different Suzuki models show the RPM in the same byte positions. If that were right, mine probably has the RPM's in the usual bytes. Is it right? or different models have different byte positions for the RPM's?

Thanks in advance



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Hi,

If I am not wrong, on Bandits and on GSXRs, the rpm bytes are at the same place, so maybe it is on vanvan too.

For the gear, you may get it by calculating the vehicle speed/rpm ratio and comparing this ratio to a table you previously determined (comparison with a small delta).



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Hello, first I apologize for my English, I'm Spanish and I speak very bad English. I own a Suzuki van van RV125 and am interested in doing the same thing you are looking for. Have you found anything? I was planning to do so by an Arduino UNO and the ELM327 AT commands, as shown in the post:

ecuhacking.activeboard.com/t22573776/sds-protocol/

And comments from kashima.

Please if you have any other ideas or new information be sure to inform is very little information on this topic for this bike.

A greeting.

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