CN-121989868-A - Sensor cover

Abstract

The present disclosure provides a sensor cover including a base layer, a cover layer disposed on the base layer and formed of a self-healing material, and a heating film disposed between the base layer and the cover layer and configured to generate heat. The base layer and the cover layer are integrally formed by a double injection molding process.

Inventors

• LI HONGXI
• JIN DONGHE
• YIN ZHENYONG
• Sun Huanhao
• JIN YINGZHU
• JIN TAIYUAN

Assignees

• 现代自动车株式会社
• 起亚株式会社
• 埃科塑料株式会社

Dates

Publication Date

20260508

Application Date

20250528

Priority Date

20241105

Claims (20)

1. 1. A sensor cover, comprising: A base layer; A cover layer disposed on the base layer and formed of a self-healing material, the cover layer and the base layer being integrally formed, and A heating film disposed between the base layer and the cover layer, the heating film configured to generate heat.
2. 2. The sensor cover of claim 1, wherein each of the base layer and the cover layer is made of a material configured to transmit radio waves therethrough.
3. 3. The sensor cover of claim 1, wherein the base layer is made of polycarbonate and the cover layer is made of polyurethane.
4. 4. The sensor cover of claim 3, wherein the base layer further comprises fiberglass.
5. 5. The sensor cover of claim 1, wherein the base layer has a thickness of 2.34 millimeters to 2.86 millimeters.
6. 6. The sensor cover of claim 1, wherein the cover layer has a thickness of 0.4 millimeters to 1.0 millimeters.
7. 7. The sensor cover of claim 1, wherein the cover layer is made of soft polyurethane or of soft polyurethane and hard polyurethane.
8. 8. The sensor cover of claim 1, wherein the heating film comprises: Film layer, and A plurality of heating wires disposed on the film layer and spaced apart from each other at preset intervals.
9. 9. The sensor cover of claim 8, wherein the film layer is made of polyethylene terephthalate (PET) and the plurality of heater wires are made of copper and silver.
10. 10. The sensor cover of claim 8, wherein each of the plurality of heater wires has a thickness of 70 microns to 90 microns.
11. 11. The sensor cover of claim 8, wherein the predetermined spacing is 5 millimeters to 7 millimeters.
12. 12. The sensor cover of claim 8, wherein the heating film further comprises a connector connected to the heating film, the connector configured to supply an electrical signal to the heating film, the connector disposed on a side of the sensor cover.
13. 13. A vehicle, comprising: Radar sensor, and A sensor cover covering at least a portion of the radar sensor, Wherein the sensor cover comprises: The base layer is formed by a base layer, A cover layer disposed on the base layer and formed of a self-healing material, and A heating film disposed between the base layer and the cover layer, the heating film configured to generate heat.
14. 14. The vehicle of claim 13, further comprising: An external temperature sensor configured to detect an external temperature; a cover temperature sensor configured to measure a temperature of the sensor cover, and A controller configured to receive information from the external temperature sensor, the cover temperature sensor, and the radar sensor, and configured to control operation of the heating film based on the collected information.
15. 15. The vehicle of claim 14, wherein the controller is configured to: Receiving an external temperature from the external temperature sensor while the vehicle is running, and The heating film is operated in response to an external temperature being lower than 0 degrees celsius.
16. 16. The vehicle of claim 15, wherein the controller is further configured to stop operation of the heating film in response to the temperature of the sensor cover being greater than or equal to a preset temperature.
17. 17. The vehicle of claim 14, wherein the controller is configured to: Determining whether the radar sensor performs a normal operation while the vehicle is running, and The heating film is operated based on a determination that the radar sensor performs an abnormal operation while the vehicle is running.
18. 18. The vehicle of claim 17, wherein the controller is configured to: Determining whether the radar sensor performs a normal operation while the heating film is operating, and And stopping the operation of the heating film based on the normal operation performed by the radar sensor.
19. 19. The vehicle of claim 13, further comprising a controller configured to collect status information of the heating film and control operation of the heating film based on the collected information.
20. 20. The vehicle of claim 19, wherein the controller is configured to: Determining whether the heating film performs a normal operation based on state information of the heating film while the vehicle is running; Determining, based on determining that the heating film is operating normally, whether i) the temperature of the heating film exceeds a preset threshold temperature, or ii) there is an overcurrent flowing through the heating film, and And stopping the operation of the heating film based on determining that the temperature of the heating film exceeds the preset threshold temperature or determining that an overcurrent flows through the heating film.

Description

Sensor cover Technical Field The present invention relates to a vehicle sensor cover (sensor cover). Background The vehicle may include heating wires arranged at various locations of the vehicle for various purposes. For example, the heating wire may be mounted on a mirror or a rear window of the vehicle to remove snow, frost, etc. from the surface thereof, thereby ensuring visibility for the driver. As another example, the heating wire may be installed in a seat or steering wheel of a vehicle, which may quickly warm a driver or occupant in the vehicle in cold weather. In some cases, the vehicle may include environmental sensors, such as radar sensors, liDAR sensors, and cameras, configured to monitor and analyze environmental conditions to assist in safe driving of the vehicle or to enable autonomous driving of the vehicle by detecting the surrounding environment. The performance of the environmental sensor may be deteriorated due to foreign matters, snow, frost, etc. attached to the surface of the environmental sensor. To ensure the performance of the environmental sensor, the heating wire may be applied to a device adapted to protect the environmental sensor, or the heating wire may be directly applied to the environmental sensor. Disclosure of Invention A sensor cover is described that is configured to protect an environmental sensor of a vehicle. For example, the present disclosure describes a sensor cover configured to enable an environmental sensor of a vehicle to operate normally in a low temperature environment. According to one aspect of the presently described subject matter, a sensor cover includes a base layer, a cover layer disposed on the base layer and formed of a self-healing material, the cover layer integrally formed with the base layer, and a heating film disposed between the base layer and the cover layer, the heating film configured to generate heat. Implementations in accordance with this aspect may include one or more of the following features. For example, each of the base layer and the cover layer may be made of a material configured to transmit radio waves therethrough. In some examples, the base layer is made of polycarbonate and the cover layer is made of polyurethane. In some examples, the base layer may also include fiberglass. In some embodiments, the thickness of the base layer is 2.34 millimeters (mm) to 2.86 mm. In some embodiments, the thickness of the cover layer may be 0.4 millimeters to 1.0 millimeters. In some embodiments, the cover layer may be made of soft polyurethane or of soft polyurethane and hard polyurethane. In some embodiments, the heating film may include a film layer and a plurality of heating wires disposed on the film layer at preset intervals. For example, the preset interval may be 5 mm to 7 mm. In some examples, the film layer may be made of polyethylene terephthalate (PET) and the plurality of heating wires are made of copper and silver. In some examples, each of the plurality of heating wires has a thickness of 70 microns to 90 microns. In some embodiments, the heating film may further include a connector connected to the heating film, the connector configured to supply an electrical signal to the heating film, the connector disposed at a side of the sensor housing. According to another aspect, a vehicle includes a radar sensor and a sensor cover covering at least a portion of the radar sensor. The sensor cover includes a base layer, a cover layer disposed on the base layer and formed of a self-healing material, and a heating film disposed between the base layer and the cover layer, the heating film configured to generate heat. Implementations in accordance with this aspect may include one or more of the following features. For example, the vehicle may include an external temperature sensor configured to detect an external temperature, a cover temperature sensor configured to measure a temperature of the sensor cover, and a controller configured to receive information from the external temperature sensor, the cover temperature sensor, and the radar sensor, the controller configured to control operation of the heating film based on the collected information. In some embodiments, the controller may be configured to receive an external temperature from the external temperature sensor while the vehicle is running, and to operate the heating film in response to the external temperature being below 0 degrees celsius. In some examples, the controller may be further configured to stop operation of the heating film in response to the temperature of the sensor cover being greater than or equal to a preset temperature. In some embodiments, the controller may be configured to determine whether the radar sensor performs a normal operation while the vehicle is running, and to operate the heating film based on determining that the radar sensor performs an abnormal operation while the vehicle is running. In some examples, the controller is configured to determine w