How much energy does the i-MiEV use when it is turned on just sitting there?
I started the i-MiEV and turned off the radio and the heat/AC, and took a Canion reading at 5PM and the battery was at 62.5% state of charge.
I left the car on overnight and took another Canion reading at 7AM (14 hours later) and the battery was at 51.5%.
16kWh times 11% equals 1.76kWH divided by 14 hours equals 126 watts.
At a DC battery voltage of 346 volts the actual amps should be 0.36 amps, not 1.0 amps. There are two current sensors in the main traction battery, a high and a low. We may be getting the output of the high current sensor on Canion, and not the low current sensor. The output of the high current sensor would not be accurate at low currents.
My i-MiEV was outside and the temperature was in the 50's and 60's, so I am not sure how much the water pump ran. I'm also not sure how much the water pump draws, but it is a tiny thing that is fed from a 15 amp fuse. If it drew 10 amps that would only be 120 watts at 12 volts.
The coolant starts at the radiator condenser tank and runs to the water pump, the on board charger/dc-dc converter, the inverter, the electric traction motor, the radiator, and back to the radiator condenser tank. I would think that the pump circulates the coolant at regular intervals, plus whenever the water temperature sensor (located on the inverter) calls for circulation, or the the three temperature sensors in the on board charger call for circulation. I'm not sure at what temperature the radiator cooling fan (that is on a 40 amp fusible link) runs. When driving the car, the inverter and electric traction motor are creating heat and would probably also call for more cooling.