A successful motorcycle
racing team relies on many things: well-sorted bikes, for a
start; talented riders; skilled and dedicated mechanics; a
strong team ethos; and information. Lots and lots of
information.
How the team analyses
and uses that information - known as data-logging - can
often mean the difference of a few precious tenths of a
second per lap; and that, in turn, can mean the difference
between victory and the almost unbearable alternative.
The Winston Ten Kate
Honda team takes its information gathering very seriously
and uses it in conjunction with rider feedback to make
crucial performance decisions.
Peter Bom looks after
all the necessary hardware - sensors, wiring, laptop
computers - and the Superbike side of the garage while
Gerard van Laar develops chassis programs and has
responsibility for Supersport data-logging.
The team's Honda
machines carry more than a dozen sensors all over the bike,
measuring wheel speed, water and oil temperature, battery
voltage, suspension, rpm, throttle position, acceleration,
deceleration, clutch and brake pressure, gear selection,
etc.
The data gathered during
each outing is stored on a hard disk on the bike and
downloaded as soon as the rider returns to the pit box.
Because there is so much
information to digest, it is separated into channels and
then it's up to Peter and Gerard to interpret it and convey
it to the riders and their mechanics.
"There's only so much
you can conclude from the data," says Peter, "no matter how
many sensors you have on the bike. That's because there are
a lot of grey areas - for a start, you have a 70kg rider
moving around on top, compensating for all kinds of things
that you can't simulate on a computer."
Peter reckons the riders
can even be too talented at times: "At this
level, they can sometimes be riding around a problem without
even being aware of it. For example, if the front suspension
is too soft, they might subconsciously brake less
aggressively to compensate."
For all that though, the
riders remain the primary source of information about how
the bike is behaving and the data is used to corroborate
their feedback.
Peter continues: "These
are very experienced riders, who know what's happening
underneath them but we always tell new riders to the team to
concentrate on what they are feeling, not to think about
solutions. We use those feelings and the data to make
decisions about which direction to go in."
It's the practice and qualifying sessions
that tend to be the most frantic for the data-logging
engineers, when they must download and interpret the data
and then make informed decisions with technicians and riders
about what changes to make.
When the session is over, the team will spend
more time looking at the data and then, back at base after
the racing weekend is over, they will go even deeper and
engine tuners will look at sensors that are not even
monitored during the weekend.
"By definition, the sensors are sensitive,"
says Peter, "because if a rider can feel a 1mm change in
ride height, our computers must be able to see a 0.1mm
difference.
"But," he concludes, "the computers don't
give us answers, just the information. It's still the riders
and team who make the decisions."