Question
EV 4.9.1 states that the energy meter must be wired in such a way that all of the energy “supplying the tractive system” must flow through it. However, if we are using a DC-DC converter to draw LV power from the battery (but not go to the tractive system) can we wire it before the energy meter so the energy used for powering LV electronics does not count towards our efficiency score? Similarly, can we wire the DC-DC converter in such a way that it is always powered by the accumulator thus eliminating the need for an LV battery entirely? This would require putting it before the AIRs but it will be disconnected whenever the LV master power switch is off.
