


devin wrote:A= 29.40a = Battery Amps
B= 75.28a = Motor Amps
C= 39.05% = Duty Cycle
D= 16.94v = Back EMF Voltage
E= 18.82v = PWM Voltage
F= 0.025ohm = Winding Resistance
G= 48.2v = Battery Voltage
H= 1417.12w = Electrical Wattage
I= 120kv = Motor KV
J= 2032.81rpm = Present RPM
K= 90% = Desired Efficiency % Setting
L= 500w = Desired Min Watts Available
M= 100% = Throttle % Setting
N= 1417.12 = Desired Full Throttle Wattage
P= 4500w = Desired Max Watts Available
Y= 120a = Max Motor Amps
Z= 95% = Max Duty Cycle %
Hummie wrote:looking at the grin tech motor simulator you can see when the load is increased the efficiency drops with every motor on there regardless of the power applied. having the esc programmed to only apply a voltage within a close proximity of the back voltage, which would limit the power, still has the motor at much lower efficiency than 90 percent with a big load
http://www.ebikes.ca/tools/simulator.ht ... se&grade=9
devin wrote:Efficiency Control in Least Code Steps
A= 29.40a = Battery Amps
B= 75.28a = Motor Amps
C= 39.05% = Duty Cycle
D= 16.94v = Back EMF Voltage
E= 18.82v = PWM Voltage
F= 0.025ohm = Winding Resistance
G= 48.2v = Battery Voltage
H= 1417.12w = Electrical Wattage
I= 120kv = Motor KV
J= 2032.81rpm = Present RPM
K= 90% = Desired Efficiency % Setting
L= 500w = Desired Min Watts Available
M= 100% = Throttle % Setting
N= 1417.12 = Desired Full Throttle Wattage
P= 4500w = Desired Max Watts Available
Y= 120a = Max Motor Amps
Z= 95% = Max Duty Cycle %
devin 9/28/17 12:25 wrote:E=0
&
N=0
&
if D>0 then E=D/(K/100)
&
if E>0 then N=(E*(E-D))/F
&
if N<L then N=L
&
if N>P then N=P
&
E=(1/10)*(sqrt((25*(D^2))+(F*M*N))+(5*D))
&
if E>(G*(Z/100)) then E=(G*(Z/100))
&
B=(E-D)/F
&
if B>Y then B=Y
&
C=(100*((B*F)+D))/G
&
repeat
devin wrote:Efficiency Control in Least Code Steps
devin wrote:A= 29.40a = Battery Amps
B= 75.28a = Motor Amps
C= 39.05% = Duty Cycle
D= 16.94v = Back EMF Voltage
E= 18.82v = PWM Voltage
F= 0.025ohm = Winding Resistance
G= 48.2v = Battery Voltage
H= 1417.12w = Electrical Wattage
I= 120kv = Motor KV
J= 2032.81rpm = Present RPM
K= 90% = Desired Efficiency % Setting
L= 500w = Desired Min Watts Available
M= 100% = Throttle % Setting
N= 1417.12 = Desired Full Throttle Wattage
P= 4500w = Desired Max Watts Available
Y= 120a = Max Motor Amps
Z= 95% = Max Duty Cycle %
devin 9/28/17 12:25 wrote:E=0
&
N=0
&
if D>0 then E=D/(K/100)
&
if E>0 then N=(E*(E-D))/F
&
if N<L then N=L
&
if N>P then N=P
&
E=(1/10)*(sqrt((25*(D^2))+(F*M*N))+(5*D))
&
if E>(G*(Z/100)) then E=(G*(Z/100))
&
B=(E-D)/F
&
if B>Y then B=Y
&
C=(100*((B*F)+D))/G
&
repeat
devin wrote:Efficiency Control in Least Code Steps
devin wrote:A= 29.40a = Battery Amps
B= 75.28a = Motor Amps
C= 39.05% = Duty Cycle
D= 16.94v = Back EMF Voltage
E= 18.82v = PWM Voltage
F= 0.025ohm = Winding Resistance
G= 48.2v = Battery Voltage
H= 1417.12w = Electrical Wattage
I= 120kv = Motor KV
J= 2032.81rpm = Present RPM
K= 90% = Desired Efficiency % Setting
L= 500w = Desired Min Watts Available
M= 100% = Throttle % Setting
N= 1417.12 = Desired Full Throttle Wattage
P= 4500w = Desired Max Watts Available
Y= 120a = Max Motor Amps
Z= 95% = Max Duty Cycle %
devin 9/28/17 12:25 wrote:E=0
&
N=0
&
if D>0 then E=D/(K/100)
&
if E>0 then N=(E*(E-D))/F
&
if N<L then N=L
&
if N>P then N=P
&
E=(1/10)*(sqrt((25*(D^2))+(F*M*N))+(5*D))
&
if E>(G*(Z/100)) then E=(G*(Z/100))
&
B=(E-D)/F
&
if B>Y then B=Y
&
C=(100*((B*F)+D))/G
&
repeat
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