| abstract |
The invention discloses a vehicle height sensor based on laser radar ranging in an airbag, comprising a sensor body and a reflector; the sensor body is connected with an air intake passage of an ECAS system airbag, the sensor body includes a laser emission probe and a laser receiving module; the reflector plate It is installed on the inner bottom surface of the airbag, and is located directly below the laser transmitting probe and the laser receiving module; the invention adopts the laser radar ranging principle to effectively measure the absolute height information of the airbag to characterize the height of the vehicle frame, and the measurement process occurs in the closed airbag interior space. , has the characteristics of high measurement accuracy, long service life and good reliability; at the same time, the height sensor has a simple structure, and the assembly process does not require a calibration link, which has higher assembly efficiency and easy maintenance. |