Method and system for evaluating mileage of fuel cell hybrid electric vehicles

Abstract

The invention discloses a method for evaluating the mileage of a fuel cell hybrid electric vehicle, which includes: acquiring vehicle parameters in each communication cycle, the vehicle parameters including: fuel cell stack voltage V fc , current I fc , battery voltage V Bat , current I Bat , supercapacitor voltage V Cap , current I Cap , Fuel cell system bench test efficiency η fcs测 ;Real-time calculation of the equivalent fuel consumption per kilometer cycle Q t ;Real-time calculation of cycle mileage S t , get the real-time equivalent fuel consumption per kilometer Q s ; Calculate the real-time mileage S' of the vehicle. The mileage can be evaluated in real time to obtain a more accurate mileage.

Description

technical field [0001] The invention belongs to the technical field of fuel cell vehicles, and in particular relates to a method and system for evaluating the mileage of a fuel cell hybrid vehicle. Background technique [0002] Fuel cell vehicles, such as hydrogen fuel cell hybrid buses, for fuel cell hybrid buses, the driver needs to know the real-time mileage of the vehicle, but the current existing practice is: the driver can only use hydrogen on the dashboard The hydrogen pressure in the bottle and the SOC of the battery and supercapacitor state of charge are used to estimate the real-time mileage of the vehicle, but it often breaks down on the road due to misjudgment. [0003] At present, there is no standard method for calculating the real-time driving mileage in China. One method is to use the ratio of the real-time remaining total energy of the vehicle to the real-time average energy consumption per kilometer. Little value, maybe even misleading. Therefore, there i...

AI Technical Summary

Problems solved by technology

[0002] Fuel cell vehicles, such as hydrogen fuel cell hybrid buses, for fuel cell hybrid buses, the driver needs to know the real-time mileage of the vehicle, but the current practice is: the driver can only use the hydrogen on the dashboard The hydrogen pressure in the bottle and the SOC of the battery and supercapacitor state of charge are used to estimate the real-time mileage of the vehicle, but often there are situations where the car breaks down on the road due to misjudgment

[0003] At present, there is no standard method for calculating the real-time driving mileage in China. One method is to use the ratio of the real-time remaining total energy of the vehicle to the real-time average energy consumption per kilometer. Little value and maybe even misleading

Images