Hello
I am opening this new topic for the tests I started last week with the ME1304 motor, so it is not mixed with the Buick Lacrosse moto-alternator topic.
In the first tests I was getting only 12 HP and the torque line was not flat, it started very quickly to decrease. But it seems the fault was in the battery (Pb 72V)
Here is one of the first tests on the dyno:
https://www.youtube.com/watch?v=5H20iD-CvtA&feature=youtu.be
Last Friday I changed to the LIPO batteries (24S x 3P x 16Ah x 10C) charged at 92V and the results were totally different, power reached first 22 HP (with a limit for the battery of 300A DC) and 25 HP (for a limit of 450 A DC). Although the battery was not fully charged (maybe about 40%) the important thing is that now torque is FLAT up to about 2200 RPM, and only starts to decrease when the battery voltage starts to drop (it is expected that the peak should happen at higher rpm for a full charged battery). Unfortunatelly I didn't start the voltage, current measurements and efficiency yet, but I will do this week
Torque is about 80 N*m for about 500A AC, which I think starts to be high as the manufacturer declares a maximum of 63 N*m and 420A AC
My goal is to measure max power and its efficiency (despite it is low), and efficiency with less power, for instance at the specified 63 N*m
I am opening this new topic for the tests I started last week with the ME1304 motor, so it is not mixed with the Buick Lacrosse moto-alternator topic.
In the first tests I was getting only 12 HP and the torque line was not flat, it started very quickly to decrease. But it seems the fault was in the battery (Pb 72V)
Here is one of the first tests on the dyno:
https://www.youtube.com/watch?v=5H20iD-CvtA&feature=youtu.be
Last Friday I changed to the LIPO batteries (24S x 3P x 16Ah x 10C) charged at 92V and the results were totally different, power reached first 22 HP (with a limit for the battery of 300A DC) and 25 HP (for a limit of 450 A DC). Although the battery was not fully charged (maybe about 40%) the important thing is that now torque is FLAT up to about 2200 RPM, and only starts to decrease when the battery voltage starts to drop (it is expected that the peak should happen at higher rpm for a full charged battery). Unfortunatelly I didn't start the voltage, current measurements and efficiency yet, but I will do this week
Torque is about 80 N*m for about 500A AC, which I think starts to be high as the manufacturer declares a maximum of 63 N*m and 420A AC
My goal is to measure max power and its efficiency (despite it is low), and efficiency with less power, for instance at the specified 63 N*m