The invention provides a method and apparatus for controlling an alternator (605) by turning it ON or OFF depending upon the battery conditions and the operating conditions of the automobile monitored by various sensors (606, 609 and 611). By allowing the batteries of the automobile (610), controlled...http://www.google.co.uk/patents/US6166523?utm_source=gb-gplus-sharePatent US6166523 - Smart alternator method and apparatus for optimizing fuel efficiency and monitoring batteries in an automobile