A method and system for enhanced battery control improves the performance of a hybrid electric vehicle (HEV). The HEV includes an internal combustion engine, at least one motor operable as a generator and a battery. A hybrid control module determines various discharge and recharge allowances limiting...http://www.google.co.uk/patents/US7173396?utm_source=gb-gplus-sharePatent US7173396 - Hybrid electric vehicle with enhanced battery control
