A control method for operating internal combustion engine electric hybrid vehicles with smaller battery packs, particularly in configurations where an electric motor (E/M) or electric motor/generator (E/MG), a battery, and associated controls are inserted between the engine and a continuously variable...http://www.google.com.au/patents/US6847189?utm_source=gb-gplus-sharePatent US6847189 - Method for controlling the operating characteristics of a hybrid electric vehicle
