Oxygen supply system and control method for a hydrogen fuel cell vehicle

Abstract

The invention provides an oxygen supply system for a hydrogen fuel cell vehicle, comprising an air filter, an air compressor, a condenser, a gas storage device and a humidifier, the air filter, the air compressor, the The condenser, the gas storage device and the humidifier are connected in sequence through pipelines, the output end of the gas storage device is provided with a mechanical pressure relief valve, and the gas storage device communicates with the humidifier The pipeline is provided with a pressure stabilizing valve, a first solenoid valve and a second solenoid valve in sequence along the gas flow direction, and the first solenoid valve and the second solenoid valve are both electrically connected to the FCU control system of the automobile, and the gas storage The device is used to store oxygen, the first solenoid valve is used to control the closing and opening of the oxygen circuit, and the second solenoid valve is used to control the supply of oxygen.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cell vehicles, in particular to an oxygen supply system of a hydrogen fuel cell vehicle and a control method thereof. Background technique [0002] With the vigorous promotion of the development of hydrogen energy energy strategy, there has been a wave of research on hydrogen fuel cell vehicles at home and abroad, and a large number of hydrogen fuel cell system integration products have been interviewed and have been assembled into corresponding hydrogen fuel cell vehicles to start operation. [0003] With the mass production of hydrogen fuel cell systems, more and more problems have been exposed in the integrated system. For example, because the gas supply of the oxygen supply system lags by 1-2S, the output power response of the hydrogen fuel cell system will lag by 1-2S , the hysteresis of the hydrogen fuel cell power response leads to the weakening of the power performance of the hydroge...

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Problems solved by technology

[0003] With the mass production of hydrogen fuel cell systems, more and more problems have been exposed in the integrated system. For example, because the gas supply of the oxygen supply system lags by 1-2S, the output power response of the hydrogen fuel cell system will lag by 1-2S , the hysteresis of the hydrogen fuel cell power response leads to the weakening of the power performance of the hydrogen fuel vehicle, and at the same time increases the dependence on the auxiliary energy (power battery or super capacitor), which needs to increase the storage energy and discharge power requirements of the auxiliary energy, and increases the auxiliary energy. The volume increases the difficulty of layout

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