What is a car microwave radar cover plate
The cover plate of the automotive microwave radar is a protective device installed outside the millimeter-wave radar. It is mainly used to protect the radar from external environmental interference (such as wind, sand, rain, snow, collisions, etc.), and at the same time ensure that the millimeter-wave signal can penetrate to achieve precise detection.
Core function
Youdaoplaceholder0 Environmental protection : By using a multi-layer structure (such as plastic substrate, primer, color paint, etc.), it isolates the direct impact of rain, dust, etc. on the radar, enhancing its durability.
Youdaoplaceholder0 Signal protection : Low dielectric constant materials (such as polypropylene) are used to reduce signal attenuation, ensuring the radar detection range and accuracy.
Youdaoplaceholder0 Aesthetic integration : Usually integrated with components such as the logo, bumper, and grille, it maintains the overall appearance of the vehicle.
Key technologies
Youdaoplaceholder0 Heating function : Some models are equipped with heating wires to prevent ice and snow coverage from affecting radar operation.
Youdaoplaceholder0 Wave transmission design : Low-loss materials (such as polypropylene) are used to reduce signal reflection and transmission losses, ensuring the accuracy of radar Angle measurement.
Application scenarios
It is commonly found in intelligent driving assistance systems (such as adaptive cruise control ACC), and needs to meet the requirements of weather resistance, structural strength and electromagnetic compatibility.
The automotive microwave radar cover plate (usually referring to the millimeter-wave radar hood) mainly serves the following functions:
Protect radar equipment
The radar is protected from external environmental interference such as wind, sand, rain, snow and collisions through a multi-layer material structure (such as plastic substrate, primer, color paint, etc.), ensuring stable operation of the radar in bad weather or complex road conditions.
Ensure signal transmission
By using special materials and structural design, millimeter-wave signals can penetrate the cover plate and accurately detect the surrounding environment, while avoiding the interference of reflected signals with the radar detection target.
Enhance the vehicle's aesthetic appeal
Integrate with the body design (such as the logo, bumper, grille, etc.) to maintain the integrity of the vehicle's overall appearance.
Adapt to extreme climates
The radar covers of some models are equipped with a heating function, which can melt ice and snow to prevent coverage and ensure reliability in winter use.
Take the JETOUR Dasheng as an example. Its millimeter-wave radar cover plate adopts Huawei's automotive-grade hardware, achieving L2.5-level intelligent driving functions. It can accurately detect and provide early warnings in complex road conditions.
The damage to the cover plate of an automotive microwave radar is usually irreparable and requires the replacement of a new part. The following is the specific explanation:
Maintenance suggestions
The radar cover plate is a vulnerable part. Once damaged, it cannot be restored to its original state by welding or repair. It must be replaced with a new cover plate from the original factory or a compatible model. If not replaced in time, it may cause the radar bracket to fall off, increasing the maintenance cost.
Common causes
Youdaoplaceholder0 Installation issue : Inadequate or loose installation can easily cause detachment
Youdaoplaceholder0 High-temperature influence : After being exposed to intense sunlight in summer, the body temperature of the vehicle can reach over 70℃, which may cause the cover plate to deform or melt
Youdaoplaceholder0 Product quality : Some cheap accessories have design flaws
It is recommended to contact a 4S store or a professional maintenance institution to replace the parts to avoid secondary damage caused by self-handling.
Faults in automotive microwave radar cover plates usually involve abnormalities in radar sensors or related components. The specific solutions need to be determined based on the manifestations of the faults:
Common causes and solutions of faults
Youdaoplaceholder0 Foreign objects blocking : Foreign objects such as leaves and snow blocking the sensor can cause the radar to fail. It is necessary to clear the covering and ensure that the sensor is clean.
Youdaoplaceholder0 Wiring issue : Check whether the wiring harness between the radar sensor and the control unit is loose or damaged. Repair or replace it if necessary.
Youdaoplaceholder0 Sensor failure : If the sensor is damaged (such as broken after collision), it needs to be replaced with an original or compatible model sensor.
Youdaoplaceholder0 System setting anomaly : Restart the radar system or update the software version. For some models, the firmware can be upgraded through the OBD interface.
Situations requiring professional maintenance
Youdaoplaceholder0 Complex faults : such as calibration deviation of the radar system, internal circuit faults or maintenance involving control modules, it is recommended to contact the 4S store or professional maintenance institution for handling.
Youdaoplaceholder0 Warranty period issues : If the vehicle malfunctions during the warranty period, please contact the manufacturer 's after-sales service first for free repair.
If the fault persists, it is recommended to use a diagnostic tool to read the specific fault code to further confirm the scope of the problem.
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