MOTOGP » 02 July 2013
Phil Borley (PBM MotoGP) - Q&A
If they're not in harmony you can get a vibration which is amplified depending on the distance of the components from each other. It's inherent in the whole bike so these kind of parameters probably wouldn't be relevant.
It can be difficult to solve, if HRC can't do it then small teams will have even more difficulty. Your heart falls a little when a rider reports chatter because that will be a limiting factor and needs to be solved first to increase your speed.
Because it's so fundamental you have to basically design your bike around the tyres.
Can you set a bike up differently for each corner?
You can on the engine management side, yes, on certain parameters. Those would usually be the torque, engine braking, wheelie control and the traction control maps. The corner is identified on a distance basis because GPS is banned from MotoGP, though I believe GPS can be used in WSBK.
All that can be controlled from the ECU.
For those that don't know, what is an ECU (Electronic Control Unit)?
To look at, an ECU is just a box of about 10cm by 10cm by 30cm. It will vary according to what your ECU's controlling. Some control everything and are big, whereas separate boxes are sometimes used for aspects such as lambda control or fuel management.
Which one are you using in the PB1?
That's the Magneti Marelli Dorna supplied ECU complete with their software. That ECU comes free of charge as part of the Dorna package. I think the replacement cost would be something over 10,000 Euros, though I'm not certain of the exact price.
When you've got your new bike and ECU, do all parameters have to be set?
Yes they do, though some come as part of the package that Dorna provide and is done with the support of Magneti Marelli. Some of the parameters are pre-set by MM [Magneti Marelli] and a lot like the ignition and fuelling tables are down to the team to at least have a starting map. The ECU will be supplied by MM set for a particular engine.
It might take perhaps two days work to try and find a base setting that you can work from and then take the bike to the circuit as long as there are no issues along the way. There are usually bugs and issues to sort out though. With the knowledge that Magneti Marelli now have from the issues with this project hopefully it will be easier for them to fit the ECU to other manufacturers' bikes.
If you want to transfer the settings between bikes, you can just connect a laptop, upload them and then download them to the receiving bike. In theory the receiving bike should then feel like the donor bike.
And next season, everyone has to use this standard ECU…
Yes, everyone has to use the ECU. The manufacturer teams though, if they want to use their own software will have to run on 20 litres of fuel [instead of 24].
We all have to run the same physical hardware, the same box with the same components. The ECU can run with a number of softwares though and we're using the software supplied as part of the package which will be regularly updated by MM.
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