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TBIS 15194:2019
4.2.13 Power management
4.2.13.1 Requirements
a) When tested by the method described in 4.2.13.2 the recordings shall show that
assistance shall be provided only when the cyclist pedals forward. This
requirement shall be checked according to the test methods described in
4.2.13.2.3;
b) assistance shall be cut off when the cyclist stops pedalling forward and the cut-off
distance shall not exceed 2 m;
c) If all braking devices (e.g. levers, back pedal) are equipped with cut-off switches,
the cut off distance shall not exceed 5 m;
d) the power output or assistance shall be progressively reduced (see Annex B) and
finally cut off as the EPAC reaches the maximum assistance speed as designed.
This requirement shall be checked according to the test methods described in
4.2.13.2;
e) the assistance shall be progressively and smoothly managed (e.g. no hunting);
f) two independent applying actions shall be required to start the electrical
assistance mode(e.g. power switch and forward pedalling activation); a traffic
caused stop (e.g. traffic lights) is not subject to this requirement;
g) after a deactivation of the electrical assistance mode due to any hazardous
electric drive malfunction, the electric drive shall not start automatically without
rider intervention (pedalling is not considered as rider intervention).
4.2.13.2 Test method – Electric motor management
4.2.13.2.1 Test conditions
a) The test may be performed either on a test track, a test bench or on a stand which
keeps the motor driven wheel free of the ground;
b) The test track shall be according to 4.2.13.2.2;
c) The time-measuring device shall have an accuracy of ± 2 %;
d) The ambient temperature shall be between 5 °C and 35 °C;
e) Maximum wind speed shall not exceed 3 m/s;
f) The battery shall be fully charged according to the manufacturer's instructions;
g) Speed measurement shall have an accuracy of ± 2 %.
The test to ensure the compliance to this clause shall be adapted to the
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