Bike Sport Developments News
  • News
  • Home
  • Services
  • Privacy & Cookies
  • Contact Us

Tech notes : Ducati V4 - ABS

19/9/2019

1 Comment

 
Picture
I have decided to start pouring out some of the knowledge I have picked up over the years and for no other reason than ‘its good to share’
​
So as the whim takes I will be adding stuff on these pages and maybe some of it will be interesting or even useful.

This is the first entry.

---

​Last year I spent a heap of time trying to figure out how to get rid of the ABS pump on the new Ducati V4, this was a spin off project while I was doing the same thing for the older 1199, 959 and 899.

The hardware wasn’t a problem as we already have a generic control board that can capture the wheel speed signals and then route them back over the CAN line. Easy, or at least it should be.
The first stages went pretty smoothly, just hacking CAN stuff and running the whole bike on a front and rear wheel speed simulator to get the system to react.

But like all CAN hacking the easy stuff is very easy, and the hard stuff can be seriously hard as there are so many bit flags, uneven channel alignments and just random stuff that seems to happen and no real way to truly understand what they all are, or what is important.

So after hundreds of hours and lots of riding with a data logger it eventually became apparent that we would never actually do this and still keep an element of safety.

The electronics package on the V4 is very clever and not all of it is inside the ECU. It works something like this.

- The ECU controls the throttles (no big surprise there), and probably has built in torque mapping for each gear

- The IMU (inertial platform) sends raw data about the bike movements to the ABS pump.

- The ABS pump also gets the wheel speed data, adds this to the IMU data, adds a bit more from the rider modes, more still from the brake pressures, stirs it all up with some fancy calculations and then spits out throttle (torque) corrections to the ECU both for acceleration and braking.

​So to make a product that does all this would pretty much mean we are re-inventing all the work Bosch has done over the years and Ducati during their testing. And I’m not going down that road.
1 Comment
Christof Birkenmaier
3/4/2021 12:32:52 pm

I have been researching the web on knowledge about the coding of the Panigale Can-Bus, because I would like to feed some ECU and IMU data into RaceChrono via a BTLE ODBII-interface when I am on my track days.
In principle, once the coding for things like throttle, lean angle, traction control, brake pressure, etc. are known, custom channels can be configured within RaceChrono.

But since Ducati is extremely secretive about their Can-Bus structure, it would require specialized equipment and knowledge to reverse-engineer this data.
Personally, I am neither equipped nor trained to do any of this - I am a spine surgeon.

But after reading through your post on figuring out the ABS, it appeared to me that the knowledge that I am seeking might already be known.
If there are any Can-Bus specs that you know and would be willing to share, I would appreciate it big time!

Reply



Leave a Reply.

    Archives

    July 2020
    June 2020
    February 2020
    January 2020
    November 2019
    September 2019
    July 2019
    May 2019
    December 2018
    November 2018
    July 2018
    May 2018
    January 2018
    November 2017
    September 2017
    May 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    February 2016
    January 2016
    November 2015
    October 2015
    September 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    January 2014
    November 2013
    October 2013
    September 2013
    July 2013
    June 2013

    RSS Feed

    Categories

    All
    Aim
    Bimota
    BMW
    Drag Racing
    Ducati
    Idm
    Kawasaki
    KTM
    Off Road
    Racing
    Supersport
    Yamaha

Company Info  |  Terms of Use  |  Product Index  |  Help
  • Copyright © 2021  Bike Sport Developments Ltd.   Website by Qanvas