The continuously variable transmission (CVT) offers the potential of allowing the engine operate near the optimal efficiency curve throughout a continuous range of velocity ratios. So the fuel economy of the automobile will be improved distinctly with the CVT having high mechanical efficiency. The double parameter shifting rule is used more frequently in the automatic transmission. The accurate model of CVT was developed and integrated with the control strategy in this paper. The CVT enables the engine to operate under the most economical conditions, which makes the fuel consumption be reduced and the efficiency be improved.