Vehicle window glass, vehicle window assembly, and vehicle

CN118952970BActive Publication Date: 2026-08-28FUYAO GLASS IND GROUP CO LTD
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Patent Information

Application Number
CN202410990480.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2026-08-28
Estimated Expiration
2044-07-23

AI Technical Summary

Technical Problem

然而,当激光雷达放置于车内时,激光雷达发射和接收的905nm波长或1550nm波长的信号均需要穿过前挡风玻璃,目前使用的为了满足隔热需求的前挡风玻璃对780-2500nm的红外线具有较高阻隔率,使激光雷达发射和接收信号在穿过前挡风玻璃时损失较大,无法满足激光雷达的正常工作和高精度测量要求

Benefits of technology

[0027]综上所述,本申请实施例提供的车窗玻璃,供激光雷达的探测信号和回波信号穿过,能够减少探测信号和回波信号在穿过信号透过区时的衰减损失,使位于车内的激光雷达接收到足够多的点云数据,实现对目标物体的高精度识别,从而同时满足激光雷达的看得远、看得清和看得稳的三重使用需求。

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Abstract

The application relates to the technical field of vehicle windows, in particular to a vehicle window glass, a vehicle window assembly and a vehicle. The vehicle window glass provided by the application has a signal transmission area for probe signals and echo signals to pass through, the signal transmission area has a transmittance of at least 75% for probe signals incident at an angle of 50-70 degrees; the number of spatial points scanned by each line of the probe signals each time is N, when the detection distance between the target object and the laser radar is 100 meters, the echo signals received by the laser radar include at least X1 point cloud data, X1 is greater than or equal to N / 200 and X1 is greater than or equal to 3, and N is greater than or equal to 400. The application can reduce the attenuation loss of the probe signals and the echo signals when passing through the signal transmission area, so that the laser radar located in the vehicle can receive sufficient point cloud data, high-precision identification of the target object is realized, and the triple use requirements of long-distance observation, clear observation and stable observation of the laser radar are simultaneously met.
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Citation Information

Patent Citations

  • Windshield

    CN111566067A

  • Vehicle-mounted laser radar device and control method thereof

    CN116106932A

  • Vehicle window glass assembly and vehicle

    CN117863837A