May be similar to these:Cees said:What is the nominal power of this Bafang motor and the max rpm ? What will be the expected max speed with 20 inch tires on a flat road ?
Cees said:Is there an expert on this forum who can help me please ?
Cees said:What is the nominal power of this Bafang motor and the max rpm ? What will be the expected max speed with 20 inch tires on a flat road ?
Cees said:Thanks wturber,
Unload (so the rear wheel is from the floor) the C965 diplay (Tucano branded but it probably a Dillinger made LCD) gives a speed of 35.4 kmh (= 22.1 mph). Does this mean like you suggested that my battery pack is not ok if I only get a speed of 17.5 mph loaded (i am not really heavy 80 kg, flat road and the tire are at 22 psi which is really high for fat tires). I assume that if a bike supplier advertises with a speed of 20 mph it is loaded since it makes no sense to give a speed unloaded.
Cees said:Edit ok I found it already :
CUL 15 (ranging from 10 - 30) : MAX Current Limit set
HAL 1 (ranging from 1 - 15) : Magnetic Pole numbers of speed sensor
AS5 12 (ranging from 0 - 12) : # of Cadence magnets
Hd6 0 (ranging from 0 or 1) : sets the throttle to 6km/h; 1=ON, 0=OFF (default 0)
HdP 0 (ranging from 0 or 1) : toggles the throttle power/current level to match the PAS level. 1=ON; 0=OFF (default 0, full power
independent of PAS level)
So what will happen if I increase the CUL from 15 to 18 (controller has max of 20 A) ??
Does it help to increase the top speed ?
Will it overheat my motor (or even the wires to the motor get burned ? ) ????
Cees said:@wturber
If i look at the power reading at full throttle during acceleration the displsy shows 960 W so i guess the motor power is not limited.
Cees said:So which wheel diameter you put in the display settings ???? I have a 20 inch wheel diameter fat tire bike BUT if i measure the actual diameter it is even at least 23 inch. So what do you put in the display ? the actual diameter or the theoretical diameter the bike is rated at.
Cees said:@ chalo
Reading at full speed is 17.5 mph
Aeron said:I don't know the hardware you have, but the proper answer should be "none of that": a decent bike computer / speedometer should require the wheel perimeter, i.e. the distance the bike moves forward when the wheel makes one turn.
Cees said:@ chalo
In both simulators I get more than 25 mph (that is even 40 kmh) !!!