Page 163 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

nd
-Unit: Newton-meter (N-m); please round off to the 2 decimal place.
c) Driving speed: V
-The driving speed of the test machine in use.

-Set the tolerance lower than 5% of the target value.
st
-The unit is expressed by kilometer per hour (km/h); please round off to the 1
decimal place.
d) Wheel driving force: F
-The driving force calculated by using the dynamometer of the test machine.

- Set the tolerance lower than 5% of the target value.
st
-The unit is Newton (N), which is set as an integral (please round off to the 1
decimal place.).

e) Power loss of test machine: Pcl
- Please use the coasting or motor driving methods to test the power loss of the
test machine.

st
-Unit: Watt (W), which is set as an integral (please round off to the 1 decimal
place.).

5.2) Calculation equations
a) Revolution input of crank: P1

P1＝0.105×N×T
Here, P1: revolution input of crank (W)
-1
N: input revolution speed (min )
T: input torque (N‧m)

And, the unit is expressed by Watt (W), which is set as an integral (please
st
round off to the 1 decimal place).

b) Driving output of the bicycle before correction: P2'

P2'＝0.278×V×F
Here, P2': driving output of the bicycle before correction (W)

V: driving speed (km/h)
F: driving force of wheel (N)

And, the unit is expressed by Watt (W), which is set as an integral (please
st
round off to the 1 decimal place).

c) Driving output of the bicycle after correction: P2

P2＝P2'＋Pcl

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