Having done some extra reading on the HSD system in Toyotas hybrids, I got the thought, that I could use solar modules to feed power to the auxillery 12 V battery, which - as far as I understand it - provides the power for lights, fans heated seats etc, but not the AC-system.
It seems to me that the 12 v battery gets charged form either the HV battey or the ICE depending on conditions.
So charging the 12 v battery via roofmounted solarmodules and a 12 v solar charge controller should get some power to the 12 v battry, that the ICE or HV battery then shall not deliver, thus save some energy, thus get a bit better milage dues to running the ICE less for charging HV battery?
Any thoughts?
Links on the HSD system:
Hybrid Synergy Drive - Wikipedia, the free encyclopedia
http://techno-fandom.org/~hobbit/car...f/thsiicon.pdf