Joined Oct 2012
3K Posts | 725+
Crab Key
yamaka46
I was waiting for someone to bring up FMEA.
I don't see anything particularly wrong with the cable positioning. There are brake cables to be snagged and gear levers that can be leaned on. It's a tiny target, but in this case, yes, it got crushed, so move or protect it.
Second, do we know what Ducati's twin sensors do? Are we sure it's redundancy?
Anyway, the real question concerns what is to be done. You suggest turning the TC up. But no sensor, no TC, so default to a base max torque level until the rider over-rides it? Sounds good, but here's a scenario, power is cut immediately in the middle of turn one. Five riders spud into the back of the poor ........ Better or worse than losing the rear?
I would guess they have - as you suggest - an over-ride of some sort, which is why I'm annoyed at him lobbing it (seemingly) before noticing an issue. It'd have been interesting to see the performance of the bike sans TC.
3621581380580951
I do blame Honda, partly for cable positioning and partly for the lack of proper FMEA anaysis.
The system "design" that causes TC to be turned off when the wheel speed sensor is lost, the FMEA on that was done very poorly. From my experience in Aerospace and Automotive, I'd have designed it to turn TC up ("TC" without a rear wheel speed sensor would simply cut the power available, possibly quite dramatically.), then have a light on the dash to inform the rider, then have a rider override control to allow the rider to turn the TC off. It's crazy for HRC to have not considered this failure mode, regardless of what causes the sensor input to fail. Even Ducrapi have two sensors, one either side of the swing arm.
It does show (again) that TC allows the riders to open the throttle too hard/fast for the track conditions/corner angle without consequences. Ban this level of TC IMHO, not Marques.
I was waiting for someone to bring up FMEA.
I don't see anything particularly wrong with the cable positioning. There are brake cables to be snagged and gear levers that can be leaned on. It's a tiny target, but in this case, yes, it got crushed, so move or protect it.
Second, do we know what Ducati's twin sensors do? Are we sure it's redundancy?
Anyway, the real question concerns what is to be done. You suggest turning the TC up. But no sensor, no TC, so default to a base max torque level until the rider over-rides it? Sounds good, but here's a scenario, power is cut immediately in the middle of turn one. Five riders spud into the back of the poor ........ Better or worse than losing the rear?
I would guess they have - as you suggest - an over-ride of some sort, which is why I'm annoyed at him lobbing it (seemingly) before noticing an issue. It'd have been interesting to see the performance of the bike sans TC.