Vehicle sensor cleaning device

Abstract

The invention provides a vehicle sensor cleaning device which is configured to clean protective glass of a sensor part of a vehicle. The vehicle sensor cleaning device includes: a driving portion configured to be rotatable; and a moving part coupled to the driving part. The moving portion is configured to move along the cover glass by rotation of the driving portion to clean the cover glass, in which the moving portion is configured to contact the cover glass and perform reciprocating motion to clean a surface of the cover glass.

Description

Technical Field

[0001] The present invention relates to a vehicle cleaning device, and more particularly to a cleaning device configured to clean the protective glass covering the sensor section of a vehicle, and to clean and remove foreign matter (e.g., contaminants that cause sensor performance degradation) adhering to the exposed outer surface of the protective glass. Background Technology

[0002] Autonomous vehicles can be configured to recognize the vehicle's external environment and the driver's condition without driver intervention, use recognition / judgment algorithms to identify and judge the surrounding environment, and control the vehicle based on the information obtained through the recognition / judgment algorithms to reach the vehicle's destination without driver intervention.

[0003] For example, autonomous vehicles can utilize multiple sensors and a Global Positioning System (GPS) to identify surrounding objects in the forward, backward, left, and right directions. Examples of sensors used in autonomous vehicles include cameras, radio detection and ranging (radar) sensors, and light detection and ranging (LiDAR) sensors. Because each of these sensors has different characteristics, advantages, and disadvantages, autonomous driving can be achieved by combining various sensor systems with each other.

[0004] In some examples, autonomous vehicles may include a variety of integrated sensors such as cameras, lidar sensors, and radar sensors. For instance, a camera sensor may be mounted on the vehicle's roof to identify the conditions ahead of the autonomous vehicle. In some cases, the external lenses of sensors mounted on the exterior of the vehicle may become contaminated with foreign matter such as dust, dirt, and asphalt, and may be further contaminated by natural phenomena such as insect carcasses, bird droppings, rainwater, and snowfall. When the lens is contaminated, the sensor may receive incorrect information or malfunction. When a sensor fails to function properly or cannot accurately identify external conditions, serious vehicle accidents may occur due to sensor malfunction. Summary of the Invention

[0005] This invention describes a device that can intuitively and effectively clean the protective glass covering vehicle sensors.

[0006] According to one aspect of the subject matter described in this application, a vehicle sensor cleaning device for a vehicle having a sensor section includes: a drive unit configured to be rotatable; and a moving unit coupled to the drive unit and configured to move along a protective glass of the sensor section by rotation of the drive unit, thereby cleaning the protective glass. The moving unit is configured to contact the surface of the protective glass and reciprocate to clean the surface of the protective glass, the surface of the protective glass having: (i) a first region corresponding to a sensor disposed in the sensor section of the vehicle; and (ii) a second region disposed outside the first region. The moving unit is configured to move at a first speed in the first region of the protective glass and at a second speed in the second region of the protective glass, the second speed being different from the first speed.

[0007] According to the embodiments of this aspect, one or more of the following features may be included. For example, the first speed is a constant speed, and the second speed includes an acceleration speed and a deceleration speed, wherein the moving part is configured to: (i) move at an acceleration speed in a first portion of the second region of the protective glass; (ii) move at a first speed in the first region; and (iii) move at a deceleration speed in a second portion of the second region of the protective glass.

[0008] In some embodiments, the vehicle sensor cleaning device may further include: a housing defining a receiving space that houses a drive unit and a moving unit, the receiving space having an open front side. In some examples, the drive unit may include a motor configured to perform forward and reverse rotation. In some examples, the moving unit may include: a boom arm coupled to the drive unit; a retainer hinged vertically to the boom arm; and a scraper coupled to the retainer and configured to wipe the protective glass.

[0009] In some embodiments, the wiper may include: a wiper holder detachably coupled to the retainer; and a wiper disposed parallel to the front surface of the wiper holder. In some examples, the moving part may also include an elastic member disposed parallel to one side surface of the arm head and configured to pull the moving part toward the drive part. In some examples, the wiper is located on the wiper holder and configured to contact the surface of the protective glass using the elasticity of the elastic member.

[0010] In some embodiments, the elastic member may include a tension spring or a compression spring configured to pull the scraper toward the drive unit. In some examples, the moving part has a cantilever shape fixed to the drive unit.

[0011] In some embodiments, the vehicle sensor cleaning device may further include a nozzle located near the protective glass and configured to spray cleaning fluid onto the protective glass. In some embodiments, the vehicle sensor cleaning device may further include a cooling fan disposed in the housing and configured to circulate and cool the air within the housing.

[0012] In some embodiments, the boom head can be one of a plurality of boom heads, wherein the moving part further includes an elastic member coupled to at least one of the plurality of boom heads. In some examples, the moving part can include: at least two boom heads branching from a portion coupled to the drive part; and elastic members coupled to each of the at least two boom heads.

[0013] In some embodiments, the movable part may further include: a plurality of retainers, each hinged to at least two armheads; and a plurality of scrapers, each attached to a retainer and configured to wipe the protective glass.

[0014] According to another aspect, a vehicle sensor cleaning device for a vehicle having a sensor section includes: a motor; a boom arm connected to the motor and configured to rotate by rotation of the motor; and a wiper connected to the boom arm and configured to contact the surface of a protective glass of the sensor section and reciprocate to clean the surface of the protective glass, the surface of the protective glass having: (i) a first region corresponding to a sensor disposed in the sensor section of the vehicle; and (ii) a second region disposed outside the first region. The wiper is configured to move at a first speed in the first region of the protective glass and at multiple second speeds in the second region of the protective glass, the multiple second speeds being different from the first speed.

[0015] According to embodiments of this aspect, it is possible to include one or more of the following features or the features described above. For example, the first speed is a constant speed, and the plurality of second speeds include an acceleration speed and a deceleration speed, wherein the wiper is configured to: (i) move at an acceleration speed in a first portion of a second region of the protective glass; (ii) move at a first speed in the first region; and (iii) move at a deceleration speed in a second portion of the second region of the protective glass.

[0016] In some embodiments, the vehicle sensor cleaning device may further include a retainer hinged to the arm head, wherein the wiper is attached to the retainer. In some examples, the vehicle sensor cleaning device may also include a resilient member disposed parallel to one side surface of the arm head and configured to pull the retainer toward the motor. In some examples, the arm head is one of a plurality of arm head branches branching from the portion attached to the motor.

[0017] It should be understood that the terms “vehicle,” “of a vehicle,” and other similar terms used herein generally encompass motor vehicles, such as passenger cars including SUVs, buses, trucks, various commercial vehicles, watercraft including various vessels, aircraft, etc., and include hybrid electric vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., vehicles powered by fuels derived from resources other than petroleum). As mentioned herein, a hybrid electric vehicle is a vehicle with two or more power sources, such as a vehicle powered by both gasoline and electricity. Attached Figure Description

[0018] The above and other features of the invention will now be described in detail with reference to certain exemplary embodiments, which are shown in the accompanying drawings given below. These embodiments are merely examples and therefore do not constitute a limitation on the invention, wherein:

[0019] Figure 1 This is a schematic diagram illustrating an example of the overall appearance of a vehicle sensor cleaning device;

[0020] Figure 2 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device;

[0021] Figure 3 This is a schematic diagram showing an example of a vehicle sensor cleaning device on the side;

[0022] Figure 4 This is a schematic diagram showing an example of the front of a vehicle sensor cleaning device;

[0023] Figure 5 This is a schematic diagram showing the moving part and the driving part of the vehicle sensor cleaning device that are combined with each other;

[0024] Figure 6 This is a side view of the moving part of the vehicle sensor cleaning device;

[0025] Figure 7 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device;

[0026] Figure 8 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device;

[0027] Figures 9A to 9F These are schematic diagrams showing examples of vehicle sensor cleaning devices.

[0028] In these figures, reference numerals refer to the same or equivalent parts of the invention throughout several figures. Detailed Implementation

[0029] One or more embodiments will now be described in detail with reference to the accompanying drawings. In describing embodiments with reference to the drawings, the same or corresponding parts will be given the same reference numerals, and repeated descriptions of them will be omitted.

[0030] Figure 1 This is a schematic diagram illustrating an example of the overall appearance of a vehicle sensor cleaning device. Figure 2 This is a schematic diagram showing the driving state of the moving part of the vehicle sensor cleaning device. Figure 3 This is a schematic diagram showing the side of the vehicle sensor cleaning device. Figure 4 This is a schematic diagram showing the front of the vehicle sensor cleaning device. Figure 5 This is a schematic diagram showing the combined state of the moving part and the driving part of the vehicle sensor cleaning device. Figure 6 This is a side view of the moving part of the vehicle sensor cleaning device. Figure 7 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device. Figure 8 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device, and Figures 9A to 9F These are schematic diagrams showing examples of vehicle sensor cleaning devices.

[0031] In some implementations, refer to Figures 1 to 6 The vehicle sensor cleaning device 10 can be integrated into the sensor unit 20 of the vehicle and is housed in the housing 400 described later.

[0032] In some embodiments, sensors 21, such as radar sensors, camera sensors, and lidar sensors, are integrally mounted in the sensor unit 20. Multiple sensor systems can be used in the sensor unit to identify the vehicle's surrounding environment. Furthermore, a camera sensor can be mounted on the roof of the autonomous vehicle to identify the situation in front of the vehicle. Additionally, sensor 21 can be configured to identify the situation in front of the vehicle, and any sensor capable of identifying the situation in front of the vehicle can be used.

[0033] The vehicle sensor cleaning device 10 includes: a drive unit 100 having a rotary output mechanism; a moving unit 200 moved by the drive unit 100; a protective glass 300 attached to a housing 400 and configured to transparently enclose the front side of the sensor 21; a housing 400 housing the drive unit 100 and the moving unit 200; a nozzle 500 configured to spray cleaning fluid; and a cooling fan 600 configured to circulate air inside the housing 400 for cooling. For example, the cleaning fluid may contain water and detergent.

[0034] In some examples, the drive unit 100 of the vehicle sensor cleaning device 10 includes a motor 110 and a motor shaft 120, and has a rotary output mechanism.

[0035] The motor 110 of the drive unit 100 is located within the internal space (“internal space”) of the housing 400, transmitting power to the motor shaft 120, adjusting its predetermined speed, and being driven to rotate in either the forward or reverse direction. Specifically, the motor 110 is driven by a controller to rotate in either the forward or reverse direction. Here, the motor 110 can be equipped with a programmable microcontroller unit (MCU) and coding system to control and adjust the angle of forward and reverse rotation. Furthermore, the motor 110 can communicate with the vehicle via a local area network (LIN) or a controller area network (CAN). Additionally, the motor 110 can be a brushless direct current (BLDC) motor.

[0036] In some examples, the motor shaft 120 of the drive unit 100 can be connected to the motor 110. In some examples, the motor shaft is connected to a worm gear and worm that can convert the driving force of the motor 110 into rotational force. Furthermore, the motor shaft rotates via the worm gear and worm and is used to rotate the moving part 200, which will be described later.

[0037] In some embodiments, the moving part 200 of the vehicle sensor cleaning device 10 includes: a head arm 210, a retainer 220, a scraper 230, and an elastic member 240.

[0038] For example, the arm head 210 of the moving part 200 is formed in a straight line shape. One end of the arm head 210 is connected to the motor shaft 120 via a fixing nut, and the other end is hinged to the retainer 220 (described later). The arm head 210 is driven by the rotation of the motor shaft 120 to perform forward and reverse rotation. Furthermore, the position of the arm head 210 is adjusted by a guide device (not shown), and the arm head is used to transmit rotational force to the retainer 220. Additionally, the arm head 210 can be configured to include at least one horizontal member 211, which is arranged horizontally to the vehicle roof and in a direction parallel to the arm head 210. The horizontal member 211 can be used to engage with the elastic member 240 and can be located at the other end of the arm head 210 that is hinged to the retainer 220. Furthermore, the horizontal member 211 is configured to withstand the elastic force of the elastic member 240 and press the scraper 230 against the protective glass 300. This horizontal member can be located near the retainer 220.

[0039] Specifically, refer to Figure 5 The horizontal component 211 is equipped with an elastic component 240. Here, the elasticity of the elastic component 240 is used to pull the arm head bar 210 toward the drive unit 100, thereby making the scraper 230 in close contact with the protective glass 300.

[0040] In addition, refer to Figure 7 Depending on the type of elastic member 240 installed on the arm head 210, the moving part 200 may also include a compression spring bracket 211'.

[0041] The compression spring bracket 211' of the boom head 210 is located at the other end of the boom head 210 and on the upper surface of the boom head 210. The compression spring bracket is configured to withstand the elastic force of the elastic member 240 by mounting the elastic member 240 to the compression spring bracket. In some examples, a compression spring is incorporated into the compression spring bracket 211' to pull the retainer 220 toward the protective glass 300 (by pushing the retainer 220 toward the protective glass 300 side).

[0042] Depending on the type of implementation, the arm head 210 can employ a horizontal component 211 or a compression spring bracket 211'. In this case, any component can be used, as long as it is possible to install an elastic component 240 configured to pull the scraper 230 toward the protective glass 300.

[0043] In some embodiments, the retainer 220 of the moving part 200 is vertically hinged to the arm head 210 and rotates about the hinge point. Furthermore, the retainer 220 transmits the rotational force of the arm head 210 to the scraper 230 and converts the elasticity of the elastic member 240 into a force pressing the scraper 230. Additionally, the position where the retainer 220 is hinged to the arm head 210 can be on the same vertical line as the position where the scraper 230 and the retainer 220 are hinged. Depending on the type of embodiment, the position where the retainer 220 and the scraper 230 are hinged can be located at a predetermined distance vertically behind the position where the retainer 220 and the arm head 210 are hinged.

[0044] Specifically, the retainer 220 of the moving part 200 performs a force conversion to press the scraper 230 against the protective glass 300 using the elastic member 240. Here, the retainer 220 reciprocates along the protective glass 300 in the left-right direction due to the drive of the drive unit 100. Furthermore, considering the length of the scraper 230 and the pressing force of the elastic member 240, the retainer 220 can clean any foreign matter attached to the protective glass by combining the pressing direction and force of the elastic member 240 with the rotation direction and rotational force of the wiper 232 of the scraper 230.

[0045] In some embodiments, the scraper 230 of the moving part 200 is attached to the retainer 220. The scraper 230 is in close contact with the protective glass 300 due to the pressing force of the arm 210, and achieves the function of cleaning the protective glass 300 by being driven by the forward and reverse rotation of the arm 210. Here, the scraper 230 includes a scraper holder 231 and a wiper 232.

[0046] The scraper 230 consists of a scraper holder 231 attached to the retainer 220 and a wiper 232 for cleaning the protective glass 300. The scraper holder 231 of the scraper 230 is stably attached to the retainer 220, and the wiper 232 is attached to a surface of the scraper holder 231 so that the wiper 232 cleans the protective glass 300 by rotating the arm 210.

[0047] The elastic member 240 of the moving part 200 can be constructed from a tension spring or a compression spring, as described above. Figure 6 and Figure 7 As shown, when a tension spring is used, the tension spring is installed on the horizontal component 211; when a compression spring is used, the compression spring is installed on the compression spring bracket 211' to give elasticity to the retainer 220, thereby enabling the wiper blade 230 to make close contact with the protective glass 300.

[0048] The cleaning device 10 includes a protective glass 300. The protective glass 300 is configured to protect the front of the sensor 21 and transparently closes the open front side of the housing 400. The protective glass 300 can be fixed to the housing 400 by adhesive and can be made of glass or synthetic resin. Furthermore, the protective glass 300 is formed to have a flat or curved shape and has a structure in which the horizontal length is greater than the vertical length.

[0049] The cleaning device 10 also includes a housing 400 configured such that the protective glass 300 can be bonded to its open front surface and houses the drive unit 100 and the moving unit 200 therein. The housing 400 consists of a lower cover housing the drive unit 100, the moving unit 200 and the cooling fan 600, and an upper cover protecting the drive unit 100, the moving unit 200 and the cooling fan 600.

[0050] The cleaning device 10 also includes a nozzle 500 for spraying cleaning fluid onto the protective glass 300. The nozzle 500 can be attached to the lower cover of the housing and can be oriented at an angle rather than a right angle onto the lower cover. If the cleaning fluid is sprayed onto the protective glass 300 at an angle rather than a right angle, the cleaning fluid can be optimally sprayed onto the protective glass 300. Therefore, the amount of cleaning fluid sprayed onto the protective glass 300 can be effectively controlled.

[0051] In some embodiments, the cleaning device 10 also includes a cooling fan 600. The cooling fan 600 exhausts air from inside the housing 400 to the outside and circulates air to cool the interior space of the housing 400.

[0052] In some examples, the moving part 200 of the cleaning device 10 is formed as a cantilever shape fixed to the drive part 100. The moving part 200 has another end with a retainer 220 attached, and the scraper 230 attached to the retainer 220 reciprocates in the left and right directions by the forward and reverse rotation of the retainer 220, thereby moving along the outer surface of the protective glass 300.

[0053] Specifically, the moving part 200 reciprocates as it moves in the left-right direction via a guide device (not shown) to clean the protective glass 300. In areas of the protective glass where the sensor 21 is located, it moves along the protective glass 300 at a constant speed (first speed), while in areas of the protective glass 300 where the sensor 21 is not located, it moves along the protective glass 300 at an accelerating or decelerating speed. This accelerating and decelerating speed can be referred to as a second speed, which differs from the first speed. For example, by controlling the forward rotation, reverse rotation, angle, and speed of the drive unit 100, the moving part 200 can move at an accelerating or decelerating speed in areas of the protective glass 300 where the sensor 21 is not located, and can move at a constant speed in areas of the protective glass 300 where the sensor 21 is located. For example, when the moving part 200 is driven, it moves to an area of ​​the protective glass 300 where the sensor 21 is not located. At this time, the moving part 200 accelerates. When the moving part moves to an area of ​​the protective glass 300 where the sensor 21 is located, the moving part 200 moves at a constant speed. Furthermore, when the moving part moves again to the area of ​​the protective glass 300 where the sensor 21 is not installed, the moving part 200 slows down.

[0054] When the moving part 200 moves in the reverse direction, its moving speed is the same as described above. That is, the moving part 200 moves along the surface of the protective glass 300 in a sequence of acceleration, constant speed, and deceleration. In this way, the moving part 200 can clean contaminants from the surface of the protective glass 300.

[0055] As described above, in the area of ​​the protective glass where the sensor 21 is not installed, reversal noise and the like can be minimized, and the moving part 200 can move at a low speed, while in the area of ​​the protective glass where the sensor 21 is installed, the moving part 200 can move at maximum speed.

[0056] Figure 8 This is a schematic diagram illustrating an example of the moving part of a vehicle sensor cleaning device. Figures 9A to 9F These are schematic diagrams showing examples of vehicle sensor cleaning devices.

[0057] The following will refer to Figure 8 An example of a vehicle sensor cleaning device is described. For example, the arm 210' of the moving part 200 can be configured to branch out at least two arm ferrules. Figure 8 As shown, each arm head 210' can be configured to be equipped with a resilient member 240' to pull the scraper towards the drive unit. For example, in this moving part, one or more retainers 220' can be hinged to one or more arm head 210' respectively, and one or more scraper blades 230' can be respectively attached to one or more retainers 220'. Furthermore, at least one protective glass 300 is provided, and the angles of each arm head 210' can be set differently. In this way, the arm head can be used to clean the protective glass 300' located near the sensor within the protective glass.

[0058] Specifically, refer to Figures 9A to 9F For example, the retainer 220', hinged to the centrally located arm head 210', bends at an angle different from the other retainers. In other words, the end of the centrally located arm head 210' bends at an obtuse angle (see...). Figure 9C and Figure 9E Here, as the retainers 220' rotate about their respective hinge points, the structure of the retainers 220', which are coupled to the arm head bar at different angles, causes the centrally located retainer 220' to move in a straight line to clean the protective glass 300' (see...). Figure 9D and Figure 9E Therefore, by attaching retainers 220' to the two arm head bars 210' respectively located on either side of the central arm head bar 210', the protective glass 300 near the sensor 21 can be cleaned, and by attaching the retainers 220' to the central arm head bar 210', the protective glass 300' separated from the protective glass 300 can be cleaned simultaneously. The moving part can also move at an accelerated or decelerated speed in the area of ​​the protective glass where the sensor is not installed, and can also move at a constant speed in the area of ​​the protective glass where the sensor is installed.

[0059] In some implementations, the vehicle sensor cleaning device can not only clean the protective glass visually, but also quickly remove contaminants that cannot be removed by air and cleaning fluid cleaning systems.

[0060] In addition, the protective glass is located in front of the sensor, which effectively protects the expensive sensor.

[0061] Furthermore, a cooling fan is installed inside the housing to prevent moisture buildup inside and to cool the sensor, thereby effectively enabling the sensor to function.

[0062] As can be clearly seen from the above description, the construction, combination, and usage relationships described in the embodiments of the present invention can achieve the following effects.

[0063] This invention provides a device that allows for intuitive and efficient cleaning of the protective glass covering a sensor.

[0064] The present invention has been described in detail with reference to exemplary embodiments, and it can be used in various other combinations, modifications, and environments. That is, those skilled in the art should understand that changes can be made to these embodiments without departing from the spirit and essence of the invention, the scope of which is defined by the scope claimed and its equivalents. These embodiments describe the best mode for implementing the inventive concept, and the invention can also be varied in specific fields of application and uses. Therefore, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. Furthermore, the scope claimed should be interpreted to include other embodiments as well.

Claims

1. A vehicle sensor cleaning device for a vehicle having a sensor section, comprising: It is configured as a rotatable drive unit; as well as A movable part, which is integrated with the drive part, is configured to move along the protective glass of the sensor part by rotating the drive part, thereby cleaning the protective glass. The movable part is configured to contact the surface of the protective glass and reciprocate to clean the surface of the protective glass. The surface of the protective glass has: (i) a first region corresponding to a sensor disposed in the sensor unit of the vehicle; and (ii) a second region disposed outside the first region. The moving part is configured to move at a first speed in the first region of the protective glass and at a second speed in the second region of the protective glass, the second speed being different from the first speed.

2. The vehicle sensor cleaning device according to claim 1, wherein, The first speed is a constant speed, and the second speed includes acceleration and deceleration. The moving part is configured to: (i) move at the acceleration speed in a first portion of the second region of the protective glass; (ii) move at the first speed in the first region; and (iii) move at the deceleration speed in a second portion of the second region of the protective glass.

3. The vehicle sensor cleaning device according to claim 1, further comprising: A housing defining a receiving space, within which the drive unit and the moving unit are housed, and the receiving space having an open front side.

4. The vehicle sensor cleaning device according to claim 1, wherein, The drive unit includes a motor configured to perform forward and reverse rotation.

5. The vehicle sensor cleaning device according to claim 1, wherein, The moving part includes: The arm head rod is attached to the drive unit; A retainer hinged vertically to the arm head; and A scraper, which is incorporated into the retainer and configured to wipe the protective glass.

6. The vehicle sensor cleaning device according to claim 5, wherein, The scraper blade includes: The scraper bracket is detachably attached to the retainer; and A wiper is disposed parallel to the front surface of the wiper holder.

7. The vehicle sensor cleaning device according to claim 6, wherein, The moving part further includes an elastic member, which is arranged parallel to one side of the arm head bar and configured to pull the moving part toward the driving part.

8. The vehicle sensor cleaning device according to claim 7, wherein, The wiper is located on the wiper holder and is configured to contact the surface of the protective glass using the elasticity of the elastic member.

9. The vehicle sensor cleaning device according to claim 7, wherein, The elastic component includes a tension spring or a compression spring configured to pull the scraper toward the drive unit.

10. The vehicle sensor cleaning device according to claim 1, wherein, The moving part has a cantilever shape that is fixed to the driving part.

11. The vehicle sensor cleaning device according to claim 1, further comprising a nozzle located near the protective glass and configured to spray cleaning fluid onto the protective glass.

12. The vehicle sensor cleaning device according to claim 3 further includes a cooling fan disposed in the housing and configured to circulate and cool the air within the housing.

13. The vehicle sensor cleaning device according to claim 5, wherein, The boom head is one of a plurality of boom head sections, and The movable part further includes an elastic component attached to at least one of the plurality of armheads.

14. The vehicle sensor cleaning device according to claim 1, wherein, The moving part includes: At least two armheads branching off from the portion connected to the drive unit; and The elastic component is incorporated into each of the at least two armheads.

15. The vehicle sensor cleaning device according to claim 14, wherein, The moving part includes: Multiple retainers, each hinged to one of the at least two arm head rods; and Multiple wipers are attached to the multiple retainers and configured to wipe the protective glass.

16. A vehicle sensor cleaning device for a vehicle having a sensor section, comprising: Electric motor; The arm head rod is connected to the motor and is configured to rotate by the rotation of the motor; as well as A wiper is connected to the arm head and configured to contact the surface of the protective glass of the sensor unit, and reciprocates to clean the surface of the protective glass, the surface of which has: (i) a first area corresponding to the sensor provided in the sensor unit of the vehicle; And (ii) a second region located outside the first region, The wiper is configured to move at a first speed in the first region of the protective glass and at a plurality of second speeds in the second region of the protective glass, the plurality of second speeds being different from the first speed.

17. The vehicle sensor cleaning device according to claim 16, wherein, The first speed is a constant speed, and the plurality of second speeds include acceleration speed and deceleration speed, and The wiper is configured to: (i) move at the acceleration speed in a first portion of the second region of the protective glass; (ii) move at the first speed in the first region; and (iii) move at the deceleration speed in a second portion of the second region of the protective glass.

18. The vehicle sensor cleaning device of claim 16, further comprising a retainer hinged to the arm head, wherein, The wiper is attached to the retainer.

19. The vehicle sensor cleaning device according to claim 18, further comprising an elastic member disposed parallel to one side of the arm head and configured to pull the retainer toward the motor.

20. The vehicle sensor cleaning device according to claim 16, wherein, The arm head is one of a plurality of arm head branches that branch off from the part connected to the motor.

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