Better acceleration with different firmware
I thought this deserved its own topic.
There is a rumour going around that the older versions of firmware push the MC harder to get better acceleration.
If you have a copy of firmware older than MC2012, please let me know.
I have just tried out MC1014PR, which did seem to give better acceleration than MC1017-68mph.
Mik and I suspect the PR may stand for Promotional, but we could be wrong.
my own bike may not give the most repeatable results, as my battery is of higher voltage.
at lower traction voltages, the difference in performance may not be as great (anyone feel like testing?)
anyway, testing the battery straight off charge gives the greatest difference as MC1017-68mph seems to give less acceleration when straight off charge.
anyway my pack voltage doesn't sag below 140vdc.
MC1017-68mph looks like this (current measured from battery):
MC1014PR looks like this:
even MC1014PR looks like it is holding back, but does seem to be an improvement acceleration wise.
do note that it is an old revision, so the using the killswitch and brake does not show pack voltage and highest cell temp.
so less useful for un-modded nimh Vectrix
Are these amperages reported via the Canbus or how do you measure them?
Below are the Canbus reported values with the software versions installed in the "Vectux":
Charger: Rev 2011
Motor controller: Rev 1014
ICM: Rev 1007
Instrument cluster: Rev D
I do not know what the installation file names for these were, the MC firmware might be MC1014PR version, or not. But I know that it does not have good acceleration off the line. It is good around 65km/h - 85km/h!
See http://visforvoltage.org/book/ev-collaborative-hand-books/6916 for details.
1km/h; 131V; 9A; = 1.179kW (00F00300: C5 02 14 30 C7 D1 00 A1)
12km/h; 126V; 58A; = 7.308kW @ full throttle , ~2.5s after start (00F00300: 42 03 14 30 45 17 00 E7) = LAME OFF THE LINE!
20km/h; 79A; 125V; = 9.875kW
29km/h ; 105A; 122V; =12.81kW
40km/h; 136A; 119V; =16.184kW
50km/h; 165A; 115V; =18.975kW
60km/h; 195A; 112V; =21.84kW
70km/h; 212A; 109V; =23.108kW
76km/h; 218A; 108V; = 23.544kW (00F00300= 4A 03 12 30 4D 46 00 16)=PEAK POWER
80km/h; 214A; 108V; =23.112kW
90km/h; 192A; 110V; =21.121kW
100km/h; 191A; 109V; =20.819kW
101km/h; 185A; 110V; = 20.35kW
103km/h; 93A; 118V; =10.974kW
102km/h; 62A; 121V; = 9.559kW
102km/h; 87A; 119V; = 10.353kW
The first V prototypes in 2005 performed like a 500CC TMAX. The older the firmware is, the better the Vectrix performs...
I hope that with better LI bats will vectrix recover some of this "lost" power...
Maybe the limit is the battery. Are you sure your battery can discharge all the instant power that the controller wants?