Originally Posted by
Dennis King
FWIW the TT zero guys can't go full throttle for the entire run on the mountain course. Also, with the current motogp rules those bikes can't make a whole race at full power with the fuel limits currently in place. so motogp/FIM is already used to programing and throttling back the bikes to make sure they complete the race, adapting that to electric bikes with help from the TTzero and other data shouldn't be all that hard. For reference, the fastest lap of the TTzero the first year in 2010 that was 100% privateer teams was a 23:22; since then professional team/sponsors like Mugen have entered bikes and the record this year was 18:34. The lap records for 1000 and 600cc bikes are 16:42 and 17:31
The biggest hurdle will be battery power and heat late race. As the battery voltage drops during the race you'll still be asking for the same power to the motors, less volts with the same watts means higher amperage, higher amperage means more heat and more cooling required of the battery and motor. In the big Tesla a fully charge battery is about 400V and can provide 450kW to the motors which is 1,125amps. At the lower stages of battery (10-15%) its around 340v. If the motors are commanding the same 450kW then you now have 1,323amps. One of two things happens, the battery overheats or the motor overheats (or both.) In the case of the Tesla Model S and X it's the motors and the computer limits the the amount of power at low states of charge and prolonged full throttle applications, Regardless of car/bike or type of motor they will all face this issue and need to deal with additional cooling and/or reduced power in the later stages of the race.
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