2017 MotoGP Season (Spoilers Inside) - Page 80 - ZX6R Forum
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post #1186 of 1588 Old 07-18-2017, 05:24 PM Thread Starter
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https://www.gpone.com/en/2017/06/08/...-the-bike.html

“Right now, the tyres are more important than the bike - he states - To explain, at Mugello it looked like it was all going wrong for Honda and we seemed to be in crisis at Austin and Jerez, Yamaha struggled in Spain. Then in Italy, in practice, at a certain point there was 10 riders in 4 tenths, we're talking about MotoGP and a track as tough as Mugello! For the show it's great of course, because until Sunday no-one knows who might win”.

Watching the races from the sofa is very different from taking part in them though.

“As a rider, sometimes nothing works and the week after you find yourself fighting for the win. This makes it harder to understand your limits and that of the bike”.

The Michelin tyres change from track to track and this, in turn, changes everything.

“They're carrying out many tests - he continues - Different riders use different tyres on the same bike, I too sometimes use the soft and then at other times the hard. With Bridgestone it was different, there were tyres that worked well everywhere and you changed the compound to suit the temperatures. This year, tyre choice has become key”.

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post #1187 of 1588 Old 07-18-2017, 05:25 PM Thread Starter
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post #1188 of 1588 Old 07-18-2017, 08:38 PM
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Yep, and I love it. Hate it when sports is like what the NBA is right now...basically a guarantee between two teams.
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post #1189 of 1588 Old 07-19-2017, 10:14 AM Thread Starter
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More ECU changes are likely to be implemented in MotoGP for next season to "bridge the gap". Seems unnecessary at this point. . Magneti Marelli wanna keep making dat money

MotoGP electronics: 'Doping' the IMU



When MotoGP finally reached an agreement with the manufacturers for a mandatory single ECU (hardware and software) from 2016, the IMU escaped their grasp.

This would not matter if the IMU was just another sensor. But it is far cleverer than that. The IMU has its own programmable 'brain' and therefore the potential to pass on 'doped' figures that influence the unified ECU software.


"The IMU is a box full for sensors and there is firmware in it that applies maths. So there are calculations made and there is the chance of cheating with it," Cecchinelli told Crash.net.

"People believe the IMU measures lean angle. This is not true. The IMU measures the lean rate and then by mathematical integration it calculates the lean angle. But if, in this calculation, you don't just perform mathematical integration of the signal but also make an 'elaboration'...

"Imagine if I take the lean rate and I take the tyre temperature. I put them together and so I output a 'doped' lean angle to the ECU, which is not the 'real' lean angle and changes depending on if the tyre is hot or cold.

"Now I have a traction control that works differently to yours."

That would be illegal, since the MotoGP technical rules state: "The use of the Official MotoGP ECU software for engine and chassis control is mandatory for all machines, and no other engine and chassis control software strategies may be used on the machine at race events."

The part shown in italics, Cecchinelli confirmed, would be infringed by embedding strategies inside the IMU. However, it is virtually impossible to police without moving to a single system for all.

"It is unavoidable that you programme the IMU to do its legal job. So I cannot stop you connecting to your IMU with your PC. Because this must be done to make it work," Cecchinelli added. "But then I don't know what you actually do. There is room for cheating there.

"The IMU is actually a computer and as it is connected by a CAN line it could, in theory and out of our control - this is clearly forbidden - receive a number of inputs that it's not supposed to and so 'dope' the output.

"The IMU is upstream of the unified software in the ECU. So if you dope the IMU outputs you are actually altering the logic of the unified software. Only by a marginal amount, but still.

"Conceptionally, the IMU is a part of the ECU and so to me it should be unified."

Last year's MotoGP World Championship saw nine different race winners, an all-time record, with five riders already claiming a victory by the midway stage of 2017. If the IMU was standardised, Cecchinelli feels the racing would be even closer.

"Moving to a single IMU is a practical step that can be done now," he said.

"It would introduce a cost difference for sure. Even if only because the production numbers would be higher. This would be one benefit, but to me the main benefit is that it's another factor to close the technical gap.

"Because I think at the moment the reason some manufacturers are resisting to unify the IMU is because they have a better one. And if they believe so, it's true!"

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post #1190 of 1588 Old 07-19-2017, 12:06 PM
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More ECU changes are likely to be implemented in MotoGP for next season to "bridge the gap". Seems unnecessary at this point. . Magneti Marelli wanna keep making dat money

MotoGP electronics: 'Doping' the IMU



When MotoGP finally reached an agreement with the manufacturers for a mandatory single ECU (hardware and software) from 2016, the IMU escaped their grasp.

This would not matter if the IMU was just another sensor. But it is far cleverer than that. The IMU has its own programmable 'brain' and therefore the potential to pass on 'doped' figures that influence the unified ECU software.


"The IMU is a box full for sensors and there is firmware in it that applies maths. So there are calculations made and there is the chance of cheating with it," Cecchinelli told Crash.net.

"People believe the IMU measures lean angle. This is not true. The IMU measures the lean rate and then by mathematical integration it calculates the lean angle. But if, in this calculation, you don't just perform mathematical integration of the signal but also make an 'elaboration'...

"Imagine if I take the lean rate and I take the tyre temperature. I put them together and so I output a 'doped' lean angle to the ECU, which is not the 'real' lean angle and changes depending on if the tyre is hot or cold.

"Now I have a traction control that works differently to yours."

That would be illegal, since the MotoGP technical rules state: "The use of the Official MotoGP ECU software for engine and chassis control is mandatory for all machines, and no other engine and chassis control software strategies may be used on the machine at race events."

The part shown in italics, Cecchinelli confirmed, would be infringed by embedding strategies inside the IMU. However, it is virtually impossible to police without moving to a single system for all.

"It is unavoidable that you programme the IMU to do its legal job. So I cannot stop you connecting to your IMU with your PC. Because this must be done to make it work," Cecchinelli added. "But then I don't know what you actually do. There is room for cheating there.

"The IMU is actually a computer and as it is connected by a CAN line it could, in theory and out of our control - this is clearly forbidden - receive a number of inputs that it's not supposed to and so 'dope' the output.

"The IMU is upstream of the unified software in the ECU. So if you dope the IMU outputs you are actually altering the logic of the unified software. Only by a marginal amount, but still.

"Conceptionally, the IMU is a part of the ECU and so to me it should be unified."

Last year's MotoGP World Championship saw nine different race winners, an all-time record, with five riders already claiming a victory by the midway stage of 2017. If the IMU was standardised, Cecchinelli feels the racing would be even closer.

"Moving to a single IMU is a practical step that can be done now," he said.

"It would introduce a cost difference for sure. Even if only because the production numbers would be higher. This would be one benefit, but to me the main benefit is that it's another factor to close the technical gap.

"Because I think at the moment the reason some manufacturers are resisting to unify the IMU is because they have a better one. And if they believe so, it's true!"

lol I just came here to post this. Pretty fascinating and I had no idea previously.
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post #1191 of 1588 Old 07-20-2017, 11:34 AM Thread Starter
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MotoGP News - MotoGP: Yamaha, Honda, Ducati 'almost same level'

The Frenchman then explained that the single ECU, introduced at the start of 2016, has been the most important factor in making victory a realistic possibility for Independent teams:

"This situation, where satellite riders have the chance to win, didn't happen overnight, but we always gave priority to the show when deciding on the technical rules.

"For the show you need a battle, which means you need a competitive grid.The single tyre, frozen spec engine, maximum number of engines have all been important but the single ECU was the thing that helped most. In the past, that was the biggest difference between factory and satellite.

"It's an incredible feeling for us to compete with the factory guys. Sure Vinales and Rossi will finish ahead of us in the championship, but it is more exciting for everyone that we can sometimes beat them.

"And at the front of the championship, as Valentino was saying, after Catalunya he was almost out of the title chase and Pedrosa in the middle of it. One race later and Pedrosa is, some people think, out of it and Valentino right back in."



-------


WSBK is most likely going to follow with the spec ECU rule changes. World Superbike: FIM Considering Implementing A Control ECU Rule In 2018

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post #1192 of 1588 Old 07-20-2017, 11:40 AM
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Look at all that shit though in the tail!!! On my zx6r I have nothing in the tail. On my R3 I have the PCV lol....the GP bikes are packed with electronic devices and cables lol

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post #1193 of 1588 Old 07-20-2017, 11:56 AM
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Sticking to my original statement: Lorenzo will be at the front by the end of the year. Big changes for him, and adapting to an entirely different riding style is not easy.
$25 to the RRW air fence fund raiser that georgie won't get on the podium at all this year.
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post #1194 of 1588 Old 07-20-2017, 12:59 PM
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Hey guys, who's in first place right now in MotoGP? And when is the next race?
Thanks
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post #1195 of 1588 Old 07-20-2017, 02:18 PM
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Hey guys, who's in first place right now in MotoGP? And when is the next race?
Thanks
Dovi,Vinales, Marquez, Rossi are separated by I believe 10 pts

3 more weeks.
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post #1196 of 1588 Old 07-20-2017, 03:32 PM
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Hey guys, who's in first place right now in MotoGP? And when is the next race?
Thanks
Your google-fu must be very weak lol
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post #1197 of 1588 Old 07-20-2017, 03:35 PM
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$25 to the RRW air fence fund raiser that georgie won't get on the podium at all this year.
That's a bold claim! I dislike the guy a lot, but unless he gets injured and misses races there's no way he won't get on the podium at least once. There are some tracks in the 2nd half of the season where he goes really well. Brno, Silverstone, Phillip Island, Misano...he'll get on the podium at one of those I bet.

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post #1198 of 1588 Old 07-20-2017, 03:47 PM Thread Starter
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$25 to the RRW air fence fund raiser that georgie won't get on the podium at all this year.
What are you talking about?

You should pay up then . . .

3rd place in the Spanish GP 2017

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post #1199 of 1588 Old 07-20-2017, 04:36 PM Thread Starter
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Show proof of payment @Otto Man for RRW

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post #1200 of 1588 Old 07-20-2017, 06:28 PM
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Show proof of payment @Otto Man for RRW
I really have to specify that it's for the remainder of the season after the summer break? I think you should contribute to the AFF for making such a moronic comment.

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