Hydrogenation device and hydrogenation method

Abstract

The invention particularly discloses a hydrogenation device and a hydrogenation method. The hydrogenation method comprises the steps that S10, the real-time environment temperature Tn is acquired, thetarget pressure Pn obtained when a hydrogen storage bottle on a to-be-tested vehicle is full of hydrogen through filling is calculated according to the environment temperature Tn, and n=1; S20, the hydrogen storage bottle is filled with hydrogen, and the actual pressure of hydrogen in the hydrogen storage bottle is adjusted to the target pressure Pn; S30, the to-be-tested vehicle is subjected tostanding for a set time, and the environment temperature Tn+1 at this moment and the actual pressure Pn' of hydrogen in the hydrogen storage bottle are acquired; and S40, according to the environmenttemperature Tn+1, the target pressure Pn+1 generated when the hydrogen storage bottle on the to-be-tested vehicle is full of hydrogen through filling is calculated. According to the hydrogenation device and the hydrogenation method, the temperature factor is fully considered, and through constant calculation and hydrogenation adjusting, it can be guaranteed that the hydrogen storage bottle is fullof hydrogen through filling.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel vehicles, in particular to a hydrogenation device and a hydrogenation method thereof. Background technique [0002] With the development of hydrogen fuel cell vehicles, the requirements for testing and certification of fuel cell vehicle driving range and energy consumption have become increasingly prominent. When the vehicle testing and certification agency tests the driving range and energy consumption of fuel cell vehicles, it must ensure that the fuel tank of the vehicle (that is, the on-board hydrogen bottle) is filled with hydrogen before the driving range test experiment, that is, the SOC (state of charge, hydrogen charging state) reaches 100% ± 1%, and must be able to accurately calculate the amount of hydrogen consumed by the vehicle during the mileage test. SOC is the filling level of hydrogen in the vehicle-mounted hydrogen cylinder. It is usually expressed as a percentage, and it...

AI Technical Summary

Problems solved by technology

[0003] The vehicle-mounted hydrogen cylinders in the prior art usually cannot directly test the temperature. Conventional hydrogen refueling stations or hydrogenation devices usually do not have a temperature compensation function. During hydrogenation, the hydrogen in the vehicle-mounted hydrogen cylinder is usually filled to 35MPa or 70MPa and then stops. continue hydrogenation

During the hydrogenation process of the vehicle-mounted hydrogen cylinder, the amount of hydrogen added will be affected by temperature and pressure. The hydrogenation process will cause the temperature and pressure inside the vehicle-mounted hydrogen cylinder to rise. After ambient temperature, the pressure inside the bottle also drops, and the hydrogen in the hydrogen storage bottle is not actually filled up.

Therefore, the hydrogenation device in the prior art cannot accurately measure whether the hydrogen in the hydrogen cylinder is full

Images