Hydrogen supply control system and method for fuel cell hydrogen energy automobile

Abstract

The invention provides a hydrogen supply control system and method for a fuel cell hydrogen energy automobile. The hydrogen supply control system comprises a hydrogen storage tank, a cylinder valve, amechanical pressure reducing valve, a temperature sensor, a pressure sensor, a hydrogen concentration sensor and a hydrogen supply controller HCU. The hydrogen supply controller HCU is electrically connected with a hydrogen fuel cell vehicle FCU controller; the method comprises the steps that the hydrogen supply controller HCU judges the fault state of a hydrogen supply system through data of thecylinder valve, the mechanical pressure reducing valve and all sensors; the hydrogen fuel cell vehicle FCU sends a control instruction to the hydrogen supply controller HCU according to the hydrogensupply system fault state; the hydrogen supply controller HCU controls the cylinder valve to be opened and closed according to the control instruction, so that the hydrogen supply safety is ensured; the hydrogen supply system fault detection method and the multi-mode control method provided by the invention have the beneficial effects that the hydrogen supply safety of the fuel cell hydrogen energy automobile is greatly improved.

Description

technical field [0001] The invention relates to the field of hydrogen energy vehicles, in particular to a hydrogen supply control system and method for fuel cell hydrogen energy vehicles. Background technique [0002] Under the theme of low-carbon, environment-friendly, high-efficiency and energy-saving global energy use, the role of hydrogen energy as a vehicle power system has re-emerged on the stage of history. With the rapid development of electronic power technology and battery technology, new energy vehicles are fully in line with the current trend of the times, and hydrogen fuel cell engines plus power batteries are generally considered to be the ultimate power form of human energy. [0003] Due to the low ignition energy of hydrogen fuel, fast flame propagation speed, and easy diffusion in sealed containers, the hydrogen storage pressure in the hydrogen supply system adopts a standard value of 35MPa or 70MPa. High hydrogen storage pressure is crucial to the safety of...

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Problems solved by technology

[0004] In view of this, in order to solve the problem of insufficient control safety of the hydrogen supply system in the prior art, this application proposes a hydrogen supply control system and method for fuel cell hydrogen vehicles, which adopts multi-mode fault detection and control, greatly increasing the fuel consumption. Safety of Hydrogen Supply for Battery Hydrogen Vehicles

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