Japan's Hitachi Technology Group's two automotive sensor systems automatically adjust the air quality and humidity inside the car.
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In addition to the gas detector in the cab, the car odor sensor is mounted around the front bumper of the vehicle. Exhaust gas from the front vehicle, or harmful gas from the front of the vehicle, enters the cab from the front of the car. The odor sensor around the front bumper can detect the carbon monoxide CO, nitrogen dioxide NO, hydrocarbon HC and volatilization. Sexual organic compound VOC. When the concentration exceeds the reference value, the car air conditioner will be switched from the external cycle to the internal cycle, and the sensor will activate the exhaust function of the system, and the harmful gas will be discharged out of the vehicle as soon as possible.
In rainy and snowy days, or when the temperature difference between the inside and outside of the car is large, the interior glass, especially the front windshield, will condense a layer of fog, which seriously affects driving safety. Many drivers don't realize that turning on the air conditioner in the car and adjusting the humidity inside the car to eliminate the fog on the glass. At this time, the humidity sensor inside the car will help you solve this problem automatically.
The humidity sensor is mounted on the top of the center console below the inside of the front windshield to monitor the air humidity inside the car in real time. When the air humidity in the car is higher than 75%, the moisture in the air inside the car will gradually condense into small water drops and condense on the inner wall of the car with a large temperature difference, which seriously affects the driver's front line of sight. At this time, the humidity sensor installed in the car will detect that the air humidity exceeds the standard, so the system will automatically turn on the car air conditioning system, and automatically adjust the air conditioning temperature and exhaust air volume according to the temperature inside and outside the car. In addition, a part of the humidity sensor is installed outside the vehicle for detecting the humidity of the air entering the engine outside the vehicle, and the air combustion ratio of the engine can be automatically adjusted according to the difference in humidity. The product is expected to be used soon in production cars.
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