The original post was about a software feature requests. Here is a proposal workable for software.
Let user set a comfort temperature range with a low temperature threshold and a high temperature threshold.
1. When the cabin temperature is below the low threshold, turn on the heater like the "auto" now.
2. When the cabin temperature is above the high threshold, turn on the AC like "auto" now
3. When the cabin temperature is between the two threads, turn off heater and AC, just run the fan per user settings.
Note this is purely software control, not hardware physics.
Let user set a comfort temperature range with a low temperature threshold and a high temperature threshold.
1. When the cabin temperature is below the low threshold, turn on the heater like the "auto" now.
2. When the cabin temperature is above the high threshold, turn on the AC like "auto" now
3. When the cabin temperature is between the two threads, turn off heater and AC, just run the fan per user settings.
Note this is purely software control, not hardware physics.
