slope mode resistance is getting 'soft' on sprints (BLE - FTMS)

[dvmarinoff]

110 rpm, 50/13 gear, and 7 % grade tops at about 600-700 watts, with a feeling of the resistance lowering down at the unit the harder you try to go.

• try to reproduce it in resistance mode (BLE),
• check if ERG mode can hold around its' advertised maximum (BLE),
• test with ANT+ FEC for resistance mode and simulation mode

[dvmarinoff]

It does not appear with ANT+ FE-C. So maybe some FTMS params are missing, or it's the firmware on my unit.

[dvmarinoff]

It seems to be related to heat accumulation in the unit. Happens after climbs in simulation mode only, ERG is capable of keeping the resistance.

[dvmarinoff]

Nope, it was the missing wind resistance coefficent parameter. I set all of the indoor simulation parameters to their corresponding default values from the FE-C spec and it now works. Sprints on 2.0% don't get soft at all got up to 700 watts on an easy gear.