Humidity self-adjusting system and method for fuel cell vehicle

Abstract

The invention discloses a humidity self-adjusting system and method for a fuel cell vehicle. The system comprises a tail gas mixed exhaust subsystem, a humidity adjusting subsystem and an air conditioner air supply subsystem. The tail gas mixed exhaust subsystem comprises a gas-liquid separator, a drainage tank and an exhaust tank, the humidity adjusting subsystem comprises a humidity controller, a humidity adjusting valve, an outside temperature detector and a cabin humidity detector, and the humidity adjusting valve is communicated with a water outlet of the drainage tank, an exhaust port of the exhaust tank and an air inlet of the air conditioner air supply subsystem through pipelines. The humidity controller is used for adjusting the opening degree of the humidity adjusting valve based on the actually-measured temperature value collected by the vehicle exterior temperature detector and the actually-measured humidity value collected by the cabin humidity detector so as to control the mixing proportion of liquid flowing out of the drainage box and gas exhausted from the exhaust box, and mixed gas flows into the air conditioner air supply subsystem. The air conditioner air supply subsystem is used for feeding the mixed gas into the cabin so as to adjust the air humidity in the cabin.

Description

technical field [0001] The invention relates to the technical field of fuel cell vehicle control, in particular to a humidity self-regulating system and method for fuel cell vehicles. Background technique [0002] Environmental comfort has important implications for drivers, especially humidity. If the humidity is high, it will be difficult for the human body to dissipate heat. If the humidity in the cabin is too high, it will also cause fog, water droplets, icing and other phenomena in the cabin, resulting in problems such as the reproduction of microorganisms in the interior and wiring harness. The skin is rough and prone to infectious diseases. Long-term drying will reduce work efficiency, especially when the heater is turned on in the car in winter, it will appear abnormally dry. In order to improve driving comfort, improve the air humidity in the cabin. [0003] At present, there are many shortcomings in the after-sale humidity adjustment devices on the market, such as...

AI Technical Summary

Problems solved by technology

If the humidity is high, it will be difficult for the human body to dissipate heat. Excessive humidity in the cockpit will also cause fog, water droplets, icing and other phenomena in the cabin, leading to problems such as interior decoration and wiring harness microbial reproduction; if the humidity is low, the nasopharynx, lips, and eyes will dry out. The skin is rough and prone to infectious diseases. Drying for a long time will reduce work efficiency, especially in winter when the car is heated, it will appear abnormally dry. In order to improve driving comfort, improve the air humidity in the cabin

[0003] At present, there are many shortcomings in the after-sales humidity adjustment devices on the market, such as: the humidity adjustment is not smart enough and the control accuracy is poor.

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