A method for estimating the driving range of a hydrogen fuel cell hybrid new energy vehicle

Abstract

The invention discloses an estimating method for endurance mileage of a hydrogen fuel cell hybrid-power new energy vehicle. The method comprises the following steps: S1, calculating energy consumptionQ1 within a calling period of each module, and energy consumption Qsum within certain time quantum, wherein U is high-voltage bus voltage with unit being V, I is high-voltage bus current with unit being A, dt is a module calling period with unit being s; S2, calculating a travelling distance S1 within the calling period of each module, and a travelling distance S sum within certain time quantum,wherein V is vehicle speed, and unit is km / h; S3, calculating real-time average energy consumption per hundred kilometers Q=Qsum*100000 / Ssum; S4, obtaining current energy residual amount WS of the newenergy vehicle to provide total energy to a power battery, a super-capacitor and a fuel battery; and S5, calculating endurance mileage S=(Wbat+Wcap+Wfcs) / Q*100. The estimating method disclosed by theinvention can effectively solve the user mileage anxiety problem by monitoring the energy state of the power battery, the energy state of super-capacitor and the energy state of the fuel cell in realtime, and integrating the whole vehicle energy consumption rate to estimate the whole vehicle endurance mileage.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy vehicles, in particular to a method for estimating the mileage of a hydrogen fuel cell hybrid new energy vehicle. Background technique [0002] With the continuous development of human society, the demand for energy is increasing day by day. At present, fossil energy, as the primary energy source, is also facing the problem of resource depletion, and the earth's ecological environment is deteriorating day by day. Therefore, we must develop new energy sources, which have the characteristics of both energy supply and environmental damage. The concept of new energy is also Came into being. At present, the main types of new energy are wind energy, solar energy, hydrogen energy, etc., and hydrogen energy is known as the "ultimate energy" due to its high energy efficiency, renewable, and low pollution. Its future industrialization has unlimited imagination. At the same time, it is also the mos...

AI Technical Summary

Problems solved by technology

However, since the current layout of the hydrogen energy industry is still in its infancy, especially with few hydrogen refueling stations, this will cause users to worry about the mileage, worrying that the driving range of the vehicle will not be able to support the driving to the hydrogen refueling station