The role of the height sensor is:
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1, the car height sensor is used in the air suspension and active suspension on the car, and its role is to detect the height of the body (the relative displacement of the distance between the body and the lower cantilever or the support under the shock absorber). Photoelectric sensor is usually used; The sensor body is installed at the end of the body, the up and down motion of the suspension is transformed into the rotating motion of the disk slot by controlling the connecting rod, and the height of the vehicle is measured by the change of the output of the optical breaker, and it is converted into an electrical signal input control device.
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2. Inside the sensor, there is a sensor shaft driven by a connecting rod to rotate, and a disk with many narrow slots is fixed on the sensor shaft. The shutter is composed of light-emitting diode and photosensitive diode transistor, the rotation of the disc can convert the output of the shutter ON\/OFF, and the ON\/OFF conversion signal is transmitted to the suspension electronic control device through the signal line. Depending ON this ON\/OFF conversion, the electronic control device can detect the rotation Angle of the disc. When the body height changes, that is, when the suspension deformation changes, the disc rotates under the drive of the sensor shaft, so that the electronic control device can detect the change of the body height.
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3, in the actual structure, the height sensor is fixed on the frame, the outer end of the sensor shaft is equipped with a guide rod, and the other end of the guide rod is connected with the lower swing arm of the independent suspension through a connecting rod.