Method and system for testing and evaluating energy-saving effect of automobile predictive cruise technology

The invention relates to the technical field of vehicle testing, and discloses a method and system for testing and evaluating the energy-saving effect of an automobile predictive cruise technology, and the method comprises the steps: respectively obtaining the comprehensive fuel consumption of a tested vehicle in a driver free driving mode, a constant-speed cruise mode and a predictive cruise mode; respectively calculating the standard deviation of the comprehensive fuel consumption of the test vehicle in each mode, and respectively comparing the difference of the comprehensive fuel consumption of the test vehicle in each mode with the standard deviation; according to a comparison result, selecting effective data to calculate an arithmetic average value as the fuel consumption of the test vehicle in each mode; and calculating the energy-saving effect of predictive cruise of the test vehicle according to the fuel consumption of the test vehicle in each mode. A driver can visually observe the slope condition of