Method and system for testing road sliding resistance of electric automobile

The invention provides a method and system for testing the road sliding resistance of an electric automobile. The method comprises the following steps: acquiring a first road sliding resistance curve corresponding to a low-roll-resistance tire in a road sliding process; testing a finished automobile internal resistance corresponding to the low-roll-resistance tire in an environmental bin, so as to obtain a first finished automobile internal resistance, and testing a finished automobile internal resistance corresponding to a standard tire, so as to obtain a second finished automobile internal resistance; and determining a second road sliding resistance curve corresponding to the standard tire according to the first road sliding resistance curve, the first finished automobile internal resistance and the second finished automobile internal resistance. According to the method provided by the embodiment of the invention, the road sliding resistance curves corresponding to different tire roll-resistance coefficient