I would assume that essentially the voltage regulator could be programmed to be dynamic based on engine parameters related to acceleration vs. coasting. If the regulator calls for a lower voltage under acceleration, the load on the engine from the alternator would be greatly reduced. Under deceleration, the regulator calls for higher voltage and increases the load on the engine, further enhancing engine braking.
I would guess it's very similar logic to regenerative braking in a hybrid
I had nissan rep/tech look at my dimming lights Wednesday.
Showed them a video I made showing them when I turn steering wheel the lights dim and had a voltage meter showing the drop in voltage to around 11.8 volts.
They checked the lights with a light meter.
They applied a load to the battery and tested the lights.
In the end I was told the lights are fine.
Since I did not like the way the car runs off the battery so much, the nissan rep suggested that they can adjust the alternators logic output so it charges more.
That way the car will not run off the battery as much and the lights will not dim as much.
I was told it shouldn't affect gas consumption
The meter I have hooked up to the 12v outlet is showing car voltage higher. (Usually the meter ran 11.8 to 14.2v now it's running around constant 14v.
Haven't driven it at night yet to see if there is a difference..
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