A multiple zone electronic control system and method are provided to control a heating, ventilation and air conditioning (HVAC) system for a vehicle. The control system includes a plurality of sensors to provide inputs relating to multiple zones of an occupant compartment of the vehicle and a plurality...http://www.google.ca/patents/US6640890?utm_source=gb-gplus-sharePatent US6640890 - Multiple zone automatic HVAC control system and method
