Vehicle fuel saving systems comprising computer hardware, sensors used to determine highway grade for purposes of gasoline conservation, and computer control software used to program engine speed, clutch and transmission functions

'clutch':28 'compris':5 'comput':6,20 'conserv':18 'control':21 'determin':11 'engin':26 'fuel':2 'function':31 'gasolin':17 'grade':13 'hardwar':7 'highway':12 'program':25 'purpos':15 'save':3 'sensor':8 'softwar':22 'speed':27 'system':4 'transmiss':30 'use':9,23 'vehicl':1

ECO-ROLL

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