Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[tbombadil]

https://home.hasslers.net/zerologparser/logs/538SDDZ6XKCG10821_BmsD0_2019-12-15.txt
https://home.hasslers.net/zerologparser/logs/538SDDZ6XKCG10821_MbbD_2019-12-15.txt

I've been trying to determine why I get thermal throttle indicator so quickly and thermal throttling so easily. I've been perusing the logs and keep checking back randomly to try to make sense of things. I figured I'd just post here in case anyone was bored and knew how to read through these more easily than I.

I do push the bike hard, but I'm pretty sure the bike shouldn't be getting anywhere near its max thermal temperatures so quickly. If it truly is, any pro-tips on how to get some better air flow?

[motorrad36]

Just how quickly do you get the indicator coming on? Riding in cold temps (I read one of your post comments noting near 30F?) reduces performance by 10-20%, now lets couple that with aggressive riding. Theory: the BMS reduces output when approaching those cold temps along a function line of ambient temp vs output. The BMS assumes that you will change riding style to match the temp, e.g. colder weather means slower/more cautious riding. The BMS is "looking" for lower output temps while power is reduced. Pushing the bike to high speed in that cold weather confuses the BMS by going "outside" the range of temp it assumes is appropriate, thus turning on the indicator.

Does that make any sense? I could be way off, just my thought.

I also see your MotTemp getting very warm over the course of a 14km ride:

01060     10/18/2019 09:13:29   Riding                     PackTemp: h 15C, l 14C, PackSOC:100%, Vpack:114.928V, MotAmps: 185, BattAmps:  36, Mods: 10, MotTemp:  22C, CtrlTemp:  14C, AmbTemp:  10C, MotRPM: 677, Odo: 5785km
 01061     10/18/2019 09:14:29   Riding                     PackTemp: h 15C, l 14C, PackSOC:100%, Vpack:115.243V, MotAmps:  56, BattAmps:  15, Mods: 10, MotTemp:  30C, CtrlTemp:  16C, AmbTemp:  11C, MotRPM:1090, Odo: 5785km
 01062     10/18/2019 09:15:29   Riding                     PackTemp: h 15C, l 14C, PackSOC:100%, Vpack:115.394V, MotAmps:  29, BattAmps:  10, Mods: 10, MotTemp:  28C, CtrlTemp:  16C, AmbTemp:  11C, MotRPM:1280, Odo: 5786km
 01063     10/18/2019 09:16:29   Riding                     PackTemp: h 15C, l 14C, PackSOC:100%, Vpack:114.525V, MotAmps:  95, BattAmps:  36, Mods: 10, MotTemp:  26C, CtrlTemp:  17C, AmbTemp:  11C, MotRPM:1473, Odo: 5787km
 01064     10/18/2019 09:17:29   Riding                     PackTemp: h 15C, l 15C, PackSOC: 99%, Vpack:107.352V, MotAmps: 384, BattAmps: 283, Mods: 10, MotTemp:  47C, CtrlTemp:  21C, AmbTemp:  12C, MotRPM:2942, Odo: 5788km
 01065     10/18/2019 09:18:29   Riding                     PackTemp: h 16C, l 15C, PackSOC: 98%, Vpack:113.015V, MotAmps:  14, BattAmps:  17, Mods: 10, MotTemp:  65C, CtrlTemp:  28C, AmbTemp:  12C, MotRPM:4022, Odo: 5789km
 01066     10/18/2019 09:19:29   Riding                     PackTemp: h 16C, l 16C, PackSOC: 98%, Vpack:114.208V, MotAmps:   0, BattAmps:   1, Mods: 10, MotTemp:  63C, CtrlTemp:  23C, AmbTemp:  12C, MotRPM:   0, Odo: 5790km
 01067     10/18/2019 09:20:29   Riding                     PackTemp: h 17C, l 16C, PackSOC: 98%, Vpack:114.365V, MotAmps: -51, BattAmps: -11, Mods: 10, MotTemp:  70C, CtrlTemp:  26C, AmbTemp:  13C, MotRPM:1130, Odo: 5791km
 01068     10/18/2019 09:21:29   Riding                     PackTemp: h 17C, l 16C, PackSOC: 97%, Vpack:112.375V, MotAmps:  44, BattAmps:  39, Mods: 10, MotTemp:  72C, CtrlTemp:  28C, AmbTemp:  13C, MotRPM:3428, Odo: 5792km
 01069     10/18/2019 09:22:29   Riding                     PackTemp: h 19C, l 18C, PackSOC: 94%, Vpack:106.342V, MotAmps: 127, BattAmps: 173, Mods: 10, MotTemp:  96C, CtrlTemp:  36C, AmbTemp:  13C, MotRPM:5454, Odo: 5794km
 01070     10/18/2019 09:23:29   Riding                     PackTemp: h 21C, l 19C, PackSOC: 91%, Vpack:103.654V, MotAmps: 175, BattAmps: 272, Mods: 10, MotTemp: 103C, CtrlTemp:  35C, AmbTemp:  13C, MotRPM:5681, Odo: 5796km
 01071     10/18/2019 09:24:29   Riding                     PackTemp: h 22C, l 21C, PackSOC: 89%, Vpack:109.717V, MotAmps: -46, BattAmps:  -9, Mods: 10, MotTemp: 104C, CtrlTemp:  32C, AmbTemp:  13C, MotRPM:1023, Odo: 5799km
 01072     10/18/2019 09:25:29   Riding                     PackTemp: h 23C, l 21C, PackSOC: 89%, Vpack:110.593V, MotAmps:  -2, BattAmps:   1, Mods: 10, MotTemp:  91C, CtrlTemp:  31C, AmbTemp:  13C, MotRPM: 513, Odo: 5799km


it goes from 22C to 104C in 10 mins, maybe there is some sensor that throws the light on if the temp gets that warm over such a short time period?