Study on cruising range calculation of petrol vehicle

Cruising range display becomes a popular function to appeal customer in such a competition market. But, it is often complained because display value is always fluctuating. Cruising range depends on remaining fuel in tank and fuel economy. The author analyzes the problem of current calculation method of remaining fuel and fuel consumption and figures out how to improve it. The detail of calculation method of remaining fuel and fuel consumption is given in this paper. Fuel consumption damping is pointed out to be necessary for cruising range calculation. The simulation model is built with Matlab/Simulink to analyze cruising range calculation method and also to determine the suitable damping value. Moreover, the test on real car is done to validate the improved calculation method.