A system for controlling a vehicle drivetrain in a fuel-efficient manner includes a control computer operable to define a contour from substantially zero engine load to substantially full engine load, wherein the contour may correspond to a fuel-efficient path from no-load to full-load engine operating...http://www.google.de/patents/US6957139?utm_source=gb-gplus-sharePatent US6957139 - System for controlling drivetrain components to achieve fuel efficiency goals
