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An information display system includes an information display that communicates relevant information relating to the operation of a vehicle. The information display conveys a score representing lifetime or long-term driving or operating efficiency of the vehicle. The score can be conveyed numericall

An information display system includes an information display that communicates relevant information relating to the operation of a vehicle. The information display conveys a score representing lifetime or long-term driving or operating efficiency of the vehicle. The score can be conveyed numerically or graphically using a number of indicators, or both. Each indicator may correspond to a different achievement level attained for efficient driving or vehicle use behavior.

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1. An information display system for a vehicle comprising: an information display for displaying an economy level score; anda controller in communication with the information display and configured to:determine a point score based on an energy consumption rate;andincrement the economy level score up

1. An information display system for a vehicle comprising: an information display for displaying an economy level score; anda controller in communication with the information display and configured to:determine a point score based on an energy consumption rate;andincrement the economy level score upon a determination that the point score exceeds the level promotion threshold. 2. The information display system of claim 1, wherein the information display includes one or more economy level indicators corresponding to the economy level score, and the economy level score is displayed on the information display using the one or more economy level indicators. 3. The information display system of claim 2, wherein incrementing the economy level score comprises transmitting a command signal so that an additional economy level indicator is added to the information display. 4. The information display system of claim 1, wherein the controller determines the point score based on the energy consumption rate upon a determination that the energy consumption rate is less than a first efficiency threshold. 5. The information display system of claim 1, wherein the step of determining a point score based on an energy consumption rate comprises: determining a point score increment amount based on the energy consumption rate; andincreasing the point score by the point score increment amount. 6. The information display system of claim 1, further comprising determining the level promotion threshold based on the economy level score. 7. The information display system of claim 6, wherein an amount of additional points necessary for the point score to exceed a next level promotion threshold is greater than the amount of additional points required for the point score to exceed a preceding level promotion threshold. 8. The information display system of claim 1, wherein display of the economy level score is hidden from a driver until the point score exceeds a first level promotion threshold. 9. The information display system of claim 1, wherein the economy level score is based on a number of level promotion thresholds exceeded over a life of the vehicle. 10. The information display system of claim 1, wherein the step of determining a point score based on an energy consumption rate comprises: determining whether the energy consumption rate exceeds a second efficiency threshold;determining a point score decrement amount based on the energy consumption rate upon a determination that the energy consumption rate exceeds the second efficiency threshold; anddecreasing the point score by the point score decrement amount. 11. The information display system of claim 10, wherein the controller is further configured to: determine a level demotion threshold based on the economy level score;determine whether the point score drops below the level demotion threshold; anddecrement the economy level score upon a determination that the point score dropped below the level demotion threshold. 12. An information display system for a vehicle comprising: an information display including a number of economy level indicators displayed in a non-linear pattern on the information display; anda controller in communication with the information display and configured to:receive an economy level score based on a long-term vehicle operating efficiency, wherein the number of economy level indicators is based on the economy level score;calculate an energy consumption rate;receive a point score based on the energy consumption rate;receive a level promotion threshold based on the economy level score; andtransmit a command signal so that another economy level indicator is added to the information display upon a determination that the point score exceeds the level promotion threshold. 13. The information display system of claim 12, wherein display of the economy level score is hidden from a driver until the point score exceeds a first level promotion threshold. 14. The information display system of claim 12, wherein the controller comprises: a display control unit coupled to the information display for storing the economy level score; anda vehicle controller in communication with the display control unit, the vehicle controller configured to receive a status signal from the display control unit corresponding to the economy level score. 15. The information display system of claim 14, wherein the vehicle controller transmits the command signal to the display control unit to increment the economy level score upon the determination that the point score exceeds the level promotion threshold. 16. The information display system of claim 12, wherein the information display further comprises a number of efficiency indicators based on a short-term vehicle operating efficiency. 17. The information display system of claim 12, wherein the number of economy level indicators are displayed randomly on the information display. 18. The information display system of claim 12, wherein the number of economy level indicators are revealed on the information display according to a predetermined order. 19. An information display system for a vehicle comprising: an information display including one or more economy level indicators associated with an economy level score; and a controller in communication with the information display and configured to determine the economy level score based on a lifetime vehicle operating efficiency, calculate a point score based on an energy consumption rate, and increment the economy level score when the point score exceeds a level promotion threshold. 20. The information display system of claim 19, wherein the level promotion threshold is based on a current economy level score.