Wiper arm assembly, wiper assembly, control method of wiper assembly and vehicle

Abstract

The invention discloses a windscreen wiper arm assembly, a windscreen wiper assembly, a control method of the windscreen wiper assembly and a vehicle, and the windscreen wiper arm assembly comprises a first windscreen wiper arm, a second windscreen wiper arm and a third windscreen wiper arm, when the first windscreen wiper arm does not operate, the first windscreen wiper arm is vertically arranged and is suitable for being attached to a column A; the windscreen wiper comprises a first windscreen wiper arm and a second windscreen wiper arm, the second windscreen wiper arm is arranged in the first windscreen wiper arm in a telescopic mode, and when the second windscreen wiper arm stretches out of the first windscreen wiper arm, the cleaning length of the windscreen wiper arm can be increased. The windscreen wiper arms are designed in a two-stage telescopic mode, and when the second windscreen wiper arm extends out of the first windscreen wiper arm, the cleaning length of the windscreen wiper arms can be increased, so that the cleaning area of the windscreen wiper arm assembly on the front windshield can be adjusted in a self-adaptive mode according to rainfall, and the cleaning area of the windscreen wiper arm assembly on the front windshield is greatly increased; therefore, the cleaning coverage rate of the wiper arm assembly can be increased, the wiper arm assembly can be hidden to a certain degree, and the problem of wind resistance caused by airflow disturbance of the wiper arm assembly in the running process of a vehicle is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a wiper arm assembly, a wiper assembly, a control method for a wiper assembly, and a vehicle. Background Art

[0002] In the related art, the wiper arm assembly includes: a first fixed block, a baffle, a fixed plate and a scraper head, the first fixed block is arranged on the upper surface of the baffle, the baffle is fixed to the lower surface of the wiper body by the first fixed block, the fixed plate is arranged on the lower surface of the baffle, and at least two scraper heads are vertically arranged on the lower surface of the fixed plate.

[0003] However, the existing wiper arm assembly also has significant defects: the wiper arm assembly cannot adaptively adjust the cleaning area of ​​the front windshield according to the rainfall, the cleaning area of ​​the front windshield remains unchanged, the cleaning coverage cannot be increased, and when the wiper arm assembly is not in operation, the setting of the wiper arm assembly will increase a certain amount of wind resistance. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a wiper arm assembly, which can increase the cleaning area of ​​the front windshield and increase the cleaning coverage.

[0005] The present invention further provides a wiper assembly.

[0006] The present invention further provides a control method for a wiper assembly.

[0007] The present invention further provides a vehicle.

[0008] The wiper arm assembly according to the present invention comprises: a first wiper arm, which is vertically arranged and suitable for fitting against the A-pillar when the first wiper arm is not in operation; and a second wiper arm, which is telescopically arranged in the first wiper arm, and when the second wiper arm is extended from the first wiper arm, the cleaning length of the wiper arm can be increased.

[0009] According to the wiper arm assembly of the present invention, a two-stage telescopic design is implemented for the wiper arm, and the second wiper arm can be telescopically arranged in the first wiper arm, and when the second wiper arm is extended from the first wiper arm, the cleaning length of the wiper arm can be increased, so that the cleaning area of ​​the front windshield by the wiper arm assembly can be adaptively adjusted according to the rainfall, and the cleaning area of ​​the front windshield by the wiper arm assembly is greatly increased, thereby increasing the cleaning coverage rate of the wiper arm assembly, and the wiper arm assembly can be hidden to a certain extent, effectively avoiding the wind resistance problem introduced by the airflow disturbance caused by the wiper arm assembly during driving of the vehicle.

[0010] In some examples of the present invention, the invention further includes: a first driving member, wherein the first driving member is disposed in the first wiper arm, and the second wiper arm is connected to the first driving member.

[0011] In some examples of the present invention, the first driving member is a linear motor, and the linear motor extends along the extension and retraction direction of the second wiper arm.

[0012] In some examples of the present invention, it also includes: a distance measuring sensor, the second wiper arm has an extending end, the extending end can extend from the first wiper arm, and the distance measuring sensor is arranged at the extending end to detect the straight-line distance between the extending end and the top of the front windshield.

[0013] In some examples of the present invention, it further includes: a controller, and the first driving member and the distance measuring sensor are electrically connected to the controller respectively.

[0014] In some examples of the present invention, the present invention further includes: a heating element, wherein the heating element is disposed in the first wiper arm and the second wiper arm, and the heating element is electrically connected to the controller.

[0015] In some examples of the present invention, the heating element is a flexible resistance wire.

[0016] In some examples of the present invention, it further includes: a rain sensor and a snow sensor, and the rain sensor and the snow sensor are electrically connected to the controller respectively.

[0017] In some examples of the present invention, the invention further comprises: a fairing, wherein the fairing is arranged on the outer side of the first wiper arm.

[0018] The wiper assembly according to the present invention comprises: a second driving member; a transmission assembly, wherein the second driving member is drivingly matched with the transmission assembly; and the wiper arm assembly described above, wherein the wiper arm assembly is connected to the transmission assembly to drive the wiper arm assembly to rotate.

[0019] In some examples of the present invention, the transmission assembly includes: a rocker, a pull rod and a crank, the rocker is connected to the rotating shaft of the second driving member, one end of the pull rod is connected to the rocker, the other end of the pull rod is hingedly engaged with one end of the crank, and the other end of the crank is connected to the wiper arm assembly.

[0020] In some examples of the present invention, the transmission assembly further includes: a hinge, the wiper arm assembly is rotatably disposed on the hinge, and the other end of the crank is also hingedly engaged with the hinge.

[0021] The control method of the wiper assembly according to the present invention includes: a rain sensor detects whether it is raining, and a snow sensor detects whether it is snowing; if the rain sensor detects that it is not raining, and the snow sensor detects that it is not snowing, the wiper assembly does not operate; if the rain sensor detects that it is raining, or the snow sensor detects that it is snowing, the wiper assembly operates.

[0022] In some examples of the present invention, in the step of operating the wiper assembly if the rain sensor detects rain or the snow sensor detects snow: the rain sensor detects rain, the snow sensor detects no snow, and detects whether the rainfall is less than a first preset value; if the rainfall is less than the first preset value, the second drive element is started and the first drive element is not started; if the rainfall is greater than or equal to the first preset value, the second drive element is started first, and then the first drive element is started.

[0023] In some examples of the present invention, in the step of operating the wiper assembly if the rain sensor detects rain or the snow sensor detects snow: the rain sensor detects no rain, the snow sensor detects snow, and detects whether the amount of snow accumulation is less than a second preset value; if the amount of snow accumulation is less than the second preset value, the second drive element is started, the heating element is started, and the first drive element is not started; if the amount of snow accumulation is greater than or equal to the second preset value, the second drive element is started first, and then the first drive element is started, and the heating element is started.

[0024] In some examples of the present invention, before the step of starting the first drive member, it also includes: whether the straight-line distance between the extended end detected by the ranging sensor and the top of the front windshield is greater than a third preset value; if it is greater than the third preset value, starting the first drive member; if it is less than or equal to the third preset value, not starting the first drive member.

[0025] In some examples of the present invention, in the step of starting the first driving member if it is greater than the third preset value: the straight-line distance between the extended end detected by the ranging sensor and the top of the front windshield is d, and the third preset value is d0, then the extended distance of the second wiper arm is: d-d0.

[0026] The vehicle according to the present invention comprises: an A-pillar; the wiper assembly described above, wherein when the wiper assembly is not in operation, the wiper arm assembly is attached to the A-pillar, and the wiper arm assembly closes the water flow channel between the engine hood and the front windshield.

[0027] In some examples of the present invention, the A-pillar is provided with a drainage groove.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a first structural schematic diagram of a wiper arm assembly according to an embodiment of the present invention; Figure 2 is a second structural schematic diagram of a wiper arm assembly according to an embodiment of the present invention; Figure 3 is a partial structural schematic diagram of a wiper arm assembly according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a wiper assembly according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention; Figure 6 is a partial structural schematic diagram of a vehicle according to an embodiment of the present invention; Figure 7 is a first block diagram of a method for controlling a wiper assembly according to an embodiment of the present invention; Figure 8 4 is a second block diagram of a method for controlling a wiper assembly according to an embodiment of the present invention.

[0030] Reference numerals: 1. Wiper arm assembly; 10. First wiper arm; 20. Second wiper arm; 200. Extending end; 30. First drive member; 40. Distance sensor; 50. Controller; 60. Heating member; 70. Fairing; 2. Wiper assembly; 80. Second drive member; 90. Transmission assembly; 900. Rocker; 901. Pull rod; 902. Crank; 100. Hinge; 3. Vehicle; 110. A-pillar; 111. Drain gutter. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0032] Reference below Figure 1-Figure 8 A wiper arm assembly 1 according to an embodiment of the present invention is described.

[0033] like Figure 1-Figure 3 As shown, the wiper arm assembly 1 according to the embodiment of the present invention comprises: a first wiper arm 10 and a second wiper arm 20. The first wiper arm 10 and the second wiper arm 20 are components of the wiper arm assembly 1, and both can support and control the wiper strip to move on the front windshield of the vehicle 3 to clear obstacles such as rain, snow, and dust, and ensure that the driver has a clear view.

[0034] like Figure 5As shown, when the first wiper arm 10 is not in operation, the first wiper arm 10 is vertically arranged, and the first wiper arm 10 is suitable for being attached to the A-pillar 110. That is to say, when the wiper arm assembly 1 is not in operation, the first wiper arm 10 is vertically arranged, and the first wiper arm 10 is attached to the A-pillar 110, so that the curvature of the outer surface profile of the wiper arm assembly 1 and the A-pillar 110 can be consistent. Compared with the existing arrangement, the wiper arm assembly 1 can be hidden to a certain extent, effectively avoiding the wind resistance problem caused by the airflow disturbance caused by the wiper arm assembly 1 during the driving of the vehicle 3.

[0035] like Figure 1-Figure 3 As shown, the second wiper arm 20 is telescopically arranged in the first wiper arm 10, and when the second wiper arm 20 is extended from the first wiper arm 10, the cleaning length of the wiper arm can be increased. The second wiper arm 20 is arranged inside the first wiper arm 10, and the second wiper arm 20 is telescopic. When the second wiper arm 20 is extended from the first wiper arm 10, the cleaning length of the wiper arm can be increased, so that the cleaning area of ​​the front windshield of the wiper arm assembly 1 can be adaptively adjusted according to the rainfall, and the cleaning area of ​​the front windshield of the wiper arm assembly 1 is greatly increased, thereby increasing the cleaning coverage rate of the wiper arm assembly 1.

[0036] Therefore, the wiper arm is designed with a two-stage telescopic design, and the second wiper arm 20 can be telescopically arranged in the first wiper arm 10, and when the second wiper arm 20 is extended from the first wiper arm 10, the cleaning length of the wiper arm can be increased, so that the cleaning area of ​​the front windshield of the wiper arm assembly 1 can be adaptively adjusted according to the rainfall. The cleaning area of ​​the front windshield of the wiper arm assembly 1 is greatly increased, thereby increasing the cleaning coverage rate of the wiper arm assembly 1, and the wiper arm assembly 1 can be hidden to a certain extent, effectively avoiding the wind resistance problem introduced by the wiper arm assembly 1 to disturb the airflow during the driving of the vehicle 3.

[0037] Specifically, Figure 1 and Figure 2 As shown, the wiper arm assembly 1 further includes: a first driving member 30, the first driving member 30 is arranged in the first wiper arm 10, and the second wiper arm 20 is connected to the first driving member 30. The first driving member 30 can mainly play a driving role, the first driving member 30 is arranged in the first wiper arm 10, and the second wiper arm 20 is connected to the first driving member 30. The first driving member 30 is arranged inside the first wiper arm 10, and the first driving member 30 is connected to the second wiper arm 20. Under the driving action of the first driving member 30, the second wiper arm 20 can be extended and retracted, and at this time, the wiper arm assembly 1 can achieve an ultra-high cleaning coverage rate.

[0038] Among them, Figure 1 and Figure 2As shown, the first driving member 30 is a linear motor, and the linear motor extends along the extension direction of the second wiper arm 20. The linear motor has the advantages of simple structure, high precision and easy control. The first driving member 30 is set as a linear motor. At this time, the first driving member 30 is more in line with the actual working conditions. The linear motor extends along the extension direction of the second wiper arm 20, and the linear motor can accurately control the position of the second wiper arm 20 along a specific direction. Under the driving action of the linear motor, the second wiper arm 20 can be extended and retracted, and at this time, the wiper arm assembly 1 can achieve an ultra-high cleaning coverage rate.

[0039] In addition, if Figure 1 and Figure 2 As shown, the wiper arm assembly 1 further includes: a distance sensor 40, the second wiper arm 20 has an extension end 200, the extension end 200 can be extended from the first wiper arm 10, and the distance sensor 40 is arranged at the extension end 200 to detect the straight-line distance between the extension end 200 and the top of the front windshield. The distance sensor 40 can mainly measure the distance between the object and the sensor and provide accurate distance data, the second wiper arm 20 has an extension end 200, the extension end 200 can mainly play an extension role, the extension end 200 can be extended from the first wiper arm 10, the second wiper arm 20 can extend from the first wiper arm 10 through the extension end 200, the distance sensor 40 is arranged at the extension end 200 to detect the straight-line distance between the extension end 200 and the top of the front windshield, and the extension end 200 is provided with the distance sensor 40, which can detect the straight-line distance between the extension end 200 and the top of the front windshield, thereby judging the extension distance of the second wiper arm 20.

[0040] Of course, if Figure 1 and Figure 2 As shown, the wiper arm assembly 1 further includes: a controller 50, and the first driving member 30 and the distance sensor 40 are electrically connected to the controller 50 respectively. The controller 50 can mainly play a control role, and the first driving member 30 and the distance sensor 40 are electrically connected to the controller 50 respectively. At this time, the controller 50 can receive data from the distance sensor 40, and decide how to control the first driving member 30 based on this information, so that the intelligence and automation of the wiper arm assembly 1 can be realized, and the cleaning efficiency of the wiper arm assembly 1 can be improved.

[0041] Furthermore, if Figure 1 and Figure 2As shown, the wiper arm assembly 1 further includes: a heating element 60, which is disposed in the first wiper arm 10 and the second wiper arm 20, and is electrically connected to the controller 50. The heating element 60 can mainly play a heating role, and can heat and remove snow and ice in snowy weather. The heating element 60 is disposed in the first wiper arm 10 and the second wiper arm 20, and the first wiper arm 10 and the second wiper arm 20 are both provided with the heating element 60, so that the performance of the wiper arm assembly 1 can be improved in cold weather conditions. The heating element 60 is electrically connected to the controller 50, and the heating function can be automatically turned on or off by programming, so that the intelligence and automation of the wiper arm assembly 1 can be realized, and the cleaning efficiency and performance of the wiper arm assembly 1 can be improved.

[0042] In addition, Figure 1 and Figure 2 As shown, the heating element 60 is a flexible resistance wire. The flexible resistance wire has good flexibility and high efficiency. The heating element 60 is set as a flexible resistance wire, so that the heating element 60 can be bent and shaped, so as to adapt to the complex shapes and structures inside the first wiper arm 10 and the second wiper arm 20. Secondly, it can provide a more uniform heat distribution to ensure that the entire wiper arm assembly 1 is effectively heated. In addition, the resistance wire usually has a faster heating speed, so as to ensure that the first wiper arm 10 and the second wiper arm 20 can reach the required temperature in a short time.

[0043] It should be noted that the wiper arm assembly 1 further includes: a rain sensor and a snow sensor, and the rain sensor and the snow sensor are electrically connected to the controller 50 respectively. The rain sensor can be used to detect the amount of rain falling on the windshield, and the snow sensor can be used to identify the presence of snow or ice. The rain sensor and the snow sensor are electrically connected to the controller 50 respectively. At this time, the rain sensor and the snow sensor can monitor the environmental conditions in real time and send the data to the controller 50, so as to realize the automatic control of the action of the wiper arm assembly 1, which can enhance the automation of the wiper arm assembly 1, improve the user experience, and enhance the safety of the vehicle 3 under various weather conditions.

[0044] In addition, if Figure 6 As shown, the wiper arm assembly 1 further includes: a fairing 70, which is arranged on the outside of the first wiper arm 10. The fairing 70 can mainly improve the aerodynamic performance and protect the internal components. It should be noted that the vertical first wiper arm 10 is more in line with the streamline direction of the incoming flow. The fairing 70 is arranged on the outside of the first wiper arm 10, so that the fairing 70 can eliminate the flow loss caused by the irregular surface of the first wiper arm 10. The arrangement method of fitting the A-pillar 110 can reduce the gap of the vehicle body and make the body shape smoother, thereby effectively avoiding the wind resistance and wind noise generated by the vehicle 3 during driving.

[0045] like Figure 4 As shown, the wiper assembly 2 according to the embodiment of the present invention comprises: a second driving member 80 and a transmission assembly 90, wherein the second driving member 80 drives and cooperates with the transmission assembly 90, and the wiper arm assembly 1 described in the above embodiment is connected with the transmission assembly 90 to drive the wiper arm assembly 1 to rotate. The second driving member 80 can be a driving motor, which can mainly play a driving role, and the transmission assembly 90 can mainly play a transmission role, and can convert the rotational motion of the second driving member 80 into the reciprocating swing of the wiper arm assembly 1. The second driving member 80 drives and cooperates with the transmission assembly 90, and the second driving member 80 can drive the transmission assembly 90 to move, and the wiper arm assembly 1 is connected with the transmission assembly 90 to drive the wiper arm assembly 1 to rotate, that is, the second driving member 80 drives the transmission assembly 90 to move, thereby realizing the drive of the wiper arm assembly 1 so that it can rotate.

[0046] Specifically, Figure 4 As shown, the transmission assembly 90 includes: a rocker 900, a pull rod 901 and a crank 902, the rocker 900 is connected to the rotating shaft of the second driving member 80, one end of the pull rod 901 is connected to the rocker 900, the other end of the pull rod 901 is hingedly matched with one end of the crank 902, and the other end of the crank 902 is connected to the wiper arm assembly 1. The rocker arm 900, the pull rod 901 and the crank 902 are components of the transmission assembly 90. The rocker arm 900 is a key part connecting the output shaft of the second drive member 80 and other transmission components. The entire transmission assembly 90 is driven by rotational motion. The pull rod 901 can be used to transmit force, usually used to change the direction or amplitude of motion. The crank 902 can mainly convert rotational motion into reciprocating motion. The rocker arm 900 is connected to the rotating shaft of the second drive member 80, one end of the pull rod 901 is connected to the rocker arm 900, and the other end of the pull rod 901 is hingedly matched with one end of the crank 902, and the other end of the crank 902 is connected to the wiper arm assembly 1. The rocker arm 900, the second drive member 80, the pull rod 901, the crank 902 and the wiper arm assembly 1 are connected respectively. That is to say, the second drive member 80, the transmission assembly 90 and the wiper arm assembly 1 are connected. At this time, the rotational motion of the second drive member 80 can be converted into the reciprocating swing of the wiper arm assembly 1, so that the second drive member 80 can drive the wiper arm assembly 1 to rotate.

[0047] Among them, Figure 4As shown, the transmission assembly 90 further includes: a hinge 100, on which the wiper arm assembly 1 is rotatably disposed, and the other end of the crank 902 is also hingedly matched with the hinge 100. The hinge 100 can play a connecting role, and can make the wiper arm assembly 1 swing flexibly. The wiper arm assembly 1 is rotatably disposed on the hinge 100, and the other end of the crank 902 is also hingedly matched with the hinge 100, so that the wiper arm assembly 1 can swing flexibly, which can improve the efficiency and reliability of the wiper assembly 2, and at the same time can enhance the adaptability to different vehicle models and windshield shapes.

[0048] like Figure 7 As shown, the control method of the wiper assembly 2 according to the present invention includes: the rain sensor detects whether it is raining, the snow sensor detects whether it is snowing, if the rain sensor detects no raining, and the snow sensor detects no snowing, the wiper assembly 2 does not operate, if the rain sensor detects raining, or the snow sensor detects snowing, the wiper assembly 2 operates. The control method of the wiper assembly 2 includes: using the rain sensor and the snow sensor to detect whether rain or snow falls on the front windshield, if the rain sensor detects no raining, and the snow sensor detects no snowing, the wiper assembly 2 does not operate, if the rain sensor and the snow sensor detect that there is neither rain nor snow on the front windshield, the wiper assembly 2 does not operate, if the rain sensor detects raining, or the snow sensor detects snowing, the wiper assembly 2 operates, if the rain sensor detects rain on the front windshield, or the snow sensor detects snow on the front windshield, the wiper assembly 2 starts to operate to clean the rain or snow on the front windshield. This allows for more intelligent identification, allowing for better rain and snow clearing work.

[0049] Of course, if Figure 7As shown, if the rain sensor detects rain, or the snow sensor detects snow, the wiper assembly 2 operates in the following steps: the rain sensor detects rain, the snow sensor detects no snow, and detects whether the rainfall is less than a first preset value. If the rainfall is less than the first preset value, the second drive member 80 is started, and the first drive member 30 is not started. If the rainfall is greater than or equal to the first preset value, the second drive member 80 is started first, and then the first drive member 30 is started. If the rain sensor detects rain, or the snow sensor detects snow, the wiper assembly 2 operates in the following steps: if it is just raining, the rain sensor will detect that there is rain on the front windshield, while the snow sensor will detect that there is no snow on the front windshield, and detect whether the rainfall is less than a first preset value. Then the rain sensor detects whether the amount of rain on the front windshield is less than the first preset value. If the rainfall is less than the first preset value, the second drive member 80 is started, and the first drive member 30 is not started. If the rainfall is less than the first preset value, the pollution degree of the rain on the front windshield is relatively light, and only the second drive member 80 needs to be started, and the first drive member 30 does not need to be started. The second drive member 80 is started. The first wiper arm 10 is moved to complete wiping of a part of the front windshield area, which can meet the driver's basic requirement for visual clarity. If the rainfall is greater than or equal to the first preset value, the second drive member 80 is started first, and then the first drive member 30 is started. If the rainfall is greater than or equal to the first preset value and the pollution degree of the rain on the front windshield is relatively serious, it is necessary to start the second drive member 80 to drive the first wiper arm 10 to move, and then start the first drive member 30 to extend the second wiper arm 20. At this time, an ultra-high cleaning coverage rate of the wiper arm assembly 1 can be achieved, and the wiping of the front windshield area can be completed, which meets the driver's basic requirement for visual clarity.

[0050] Furthermore, if Figure 7As shown, if the rain sensor detects rain, or the snow sensor detects snow, the wiper assembly 2 operates in the following steps: the rain sensor detects no rain, the snow sensor detects snow, and detects whether the amount of snow accumulation is less than a second preset value. If the amount of snow accumulation is less than the second preset value, the second drive member 80 is started, the heating member 60 is started, and the first drive member 30 is not started. If the amount of snow accumulation is greater than or equal to the second preset value, the second drive member 80 is started first, and then the first drive member 30 is started, and the heating member 60 is started. If the rain sensor detects rain, or the snow sensor detects snow, the wiper assembly 2 operates in the following steps: if it is just snowing, the rain sensor will detect that there is no rain on the front windshield, while the snow sensor will detect that there is snow on the front windshield, and detect whether the amount of snow accumulation is less than a second preset value. Then the snow sensor detects whether the amount of snow accumulation on the front windshield is less than the second preset value. If the amount of snow accumulation is less than the second preset value, the second drive member 80 is started, the heating member 60 is started, and the first drive member 30 is not started. If the snowfall is less than the second preset value, the degree of snow pollution to the front windshield is almost light, and only the second drive member 80 needs to be started, and the first drive member 30 does not need to be started. The second drive member 80 is started and the heating member 60 set in the first wiper arm 10 is started synchronously, driving the first wiper arm 1 0 movement, to complete the snow melting and scraping of part of the front windshield area, so that the driver's basic requirement for visual clarity can be met. If the amount of snow is greater than or equal to the second preset value, the second drive member 80 is started first, and then the first drive member 30 is started, and then the heating member 60 is started. If the snowfall is greater than or equal to the second preset value, the degree of snow pollution to the front windshield is relatively serious at this time, then it is necessary to start the second drive member 80 and synchronously start the heating member 60 to drive the first wiper arm 10 to move, and then start the first drive member 30 and synchronously start the heating member 60 arranged in the second wiper arm 20 to achieve the extension of the second wiper arm 20. At this time, the wiper arm assembly 1 can achieve an ultra-high cleaning coverage rate, complete the snow melting and scraping of the front windshield area, and meet the driver's basic requirement for visual clarity.

[0051] In addition, Figure 8As shown, before the step of starting the first driving member 30, it also includes: whether the straight-line distance between the protruding end 200 and the top of the front windshield detected by the distance measuring sensor 40 is greater than the third preset value, if it is greater than the third preset value, the first driving member 30 is started, if it is less than or equal to the third preset value, the first driving member 30 is not started. Before the step of starting the first driving member 30, it also includes: using the distance measuring sensor 40 to detect the straight-line distance between the protruding end 200 and the top of the front windshield, judging whether it is greater than the third preset value, if it is greater than the third preset value, the first driving member 30 is started, if the straight-line distance between the protruding end 200 and the top of the front windshield is greater than the third preset value, at this time, the first driving member 30 starts to work, driving the second wiper arm 20 to extend, if it is less than or equal to the third preset value, the first driving member 30 is not started, if the straight-line distance between the protruding end 200 and the top of the front windshield is less than or equal to the third preset value, at this time, the first driving member 30 does not work, and the second wiper arm 20 does not extend.

[0052] It should be noted that if Figure 8 As shown, in the step of starting the first driving member 30 if it is greater than the third preset value: the straight-line distance between the extended end 200 detected by the distance-measuring sensor 40 and the top of the front windshield is d, the third preset value is d0, and the distance the second wiper arm 20 extends is: d-d0. In the step of starting the first driving member 30 if it is greater than the third preset value: the straight-line distance between the extended end 200 and the top of the front windshield detected by the distance-measuring sensor 40 is d, the third preset value is d0, and the distance the second wiper arm 20 extends is: d-d0, the third preset value is set to d0, and the length the second wiper arm 20 needs to extend is: d-d0, and at this time, an ultra-high cleaning coverage rate of the wiper arm assembly 1 can be achieved, and there will be no interference between the second wiper arm 20 and the front windshield.

[0053] like Figure 5 As shown, a vehicle 3 according to an embodiment of the present invention comprises: an A-pillar 110 and the wiper assembly 2 described in the above embodiment. When the wiper assembly 2 is not in operation, the wiper arm assembly 1 is attached to the A-pillar 110, and the wiper arm assembly 1 closes the water flow groove between the engine hood and the front windshield. The A-pillar 110 is an important component of the vehicle 3, which can mainly help maintain the overall rigidity and stability of the vehicle 3. When the wiper assembly 2 is not in operation, the wiper arm assembly 1 is attached to the A-pillar 110, that is, the curvature of the outer profile of the wiper arm assembly 1 and the A-pillar 110 is consistent, which can effectively avoid the wind resistance and wind noise problems caused by the airflow disturbance caused by the wiper arm assembly 1 during the driving process of the vehicle 3, and the wiper arm assembly 1 closes the water flow groove between the engine hood and the front windshield, that is, thanks to the vertical wiper arm assembly 1, the water flow groove between the engine hood and the front windshield can be completely closed, which can further improve the smoothness of the airflow and reduce the wind resistance.

[0054] In addition, if Figure 5As shown, the A-pillar 110 is provided with a drainage groove 111. The drainage groove 111 can play a role in drainage. The A-pillar 110 is provided with the drainage groove 111, so that the water flow swept by the wiper assembly 2 can be effectively discharged.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wiper arm assembly (1), characterized in that: include: a first wiper arm (10); when the first wiper arm (10) is not in operation, the first wiper arm (10) is vertically arranged and is suitable for being attached to the A-pillar (110); A second wiper arm (20) is telescopically arranged inside the first wiper arm (10), and when the second wiper arm (20) is extended from the first wiper arm (10), the cleaning length of the wiper arm can be increased.

2. The wiper arm assembly (1) according to claim 1, characterized in that: Also includes: A first driving member (30), wherein the first driving member (30) is arranged in the first wiper arm (10), and the second wiper arm (20) is connected to the first driving member (30).

3. The wiper arm assembly (1) according to claim 2, characterized in that: The first driving member (30) is a linear motor, and the linear motor extends along the telescopic direction of the second wiper arm (20).

4. The wiper arm assembly (1) according to claim 2, characterized in that: Also includes: The second wiper arm (20) has an extended end (200), the extended end (200) can extend from the first wiper arm (10), and the distance measuring sensor (40) is arranged on the extended end (200) to detect the straight-line distance between the extended end (200) and the top of the front windshield.

5. The wiper arm assembly (1) according to claim 4, characterized in that: Also includes: A controller (50), wherein the first driving member (30) and the distance measuring sensor (40) are respectively electrically connected to the controller (50).

6. The wiper arm assembly (1) according to claim 5, characterized in that: Also includes: A heating element (60), the heating element (60) being arranged in the first wiper arm (10) and the second wiper arm (20), the heating element (60) being electrically connected to the controller (50).

7. The wiper arm assembly (1) according to claim 6, characterized in that: The heating element (60) is a flexible resistance wire.

8. The wiper arm assembly (1) according to claim 5, characterized in that: Also includes: A rain sensor and a snow sensor, wherein the rain sensor and the snow sensor are electrically connected to the controller (50) respectively.

9. The wiper arm assembly (1) according to claim 1, characterized in that: Also includes: A fairing (70) is arranged on the outside of the first wiper arm (10).

10. A wiper assembly (2), characterized in that: include: A second driving member (80); A transmission assembly (90), wherein the second driving member (80) is drivingly matched with the transmission assembly (90); The wiper arm assembly (1) according to any one of claims 1 to 9, wherein the wiper arm assembly (1) is connected to the transmission assembly (90) to drive the wiper arm assembly (1) to rotate.

11. The wiper assembly (2) according to claim 10, characterized in that: The transmission assembly (90) comprises: a rocker (900), a pull rod (901) and a crank (902); the rocker (900) is connected to the rotating shaft of the second driving member (80); one end of the pull rod (901) is connected to the rocker (900); the other end of the pull rod (901) is hingedly matched with one end of the crank (902); and the other end of the crank (902) is connected to the wiper arm assembly (1).

12. The wiper assembly (2) according to claim 11, characterized in that: The transmission assembly (90) further comprises a hinge (100), the wiper arm assembly (1) being rotatably arranged on the hinge (100), and the other end of the crank (902) being also hingedly matched with the hinge (100).

13. A control method for a wiper assembly (2) according to any one of claims 10 to 12, characterized in that: include: The rain sensor detects whether it is raining, and the snow sensor detects whether it is snowing; If the rain sensor detects that there is no rain and the snow sensor detects that there is no snow, the wiper assembly (2) does not operate; If the rain sensor detects rain, or the snow sensor detects snow, the wiper assembly (2) operates.

14. The control method of the wiper assembly (2) according to claim 13, characterized in that: In the step of operating the wiper assembly (2) if the rain sensor detects rain or the snow sensor detects snow: The rain sensor detects rain, the snow sensor detects no snow, and detects whether the rainfall is less than a first preset value; If the rainfall is less than a first preset value, the second driving member (80) is activated, and the first driving member (30) is not activated; If the rainfall is greater than or equal to the first preset value, the second driving member (80) is started first, and then the first driving member (30) is started.

15. The control method of the wiper assembly (2) according to claim 13, characterized in that: In the step of operating the wiper assembly (2) if the rain sensor detects rain or the snow sensor detects snow: The rain sensor detects that it is not raining, and the snow sensor detects that it is snowing, and detects whether the amount of snow is less than a second preset value; If the amount of snow accumulation is less than a second preset value, the second driving member (80) is activated, the heating member (60) is activated, and the first driving member (30) is not activated; If the amount of snow accumulation is greater than or equal to a second preset value, the second driving member (80) is started first, and then the first driving member (30) is started, and then the heating member (60) is started.

16. The control method of the wiper assembly (2) according to claim 14 or 15, characterized in that: Before the step of starting the first driving member (30), the method further comprises: Whether the straight-line distance between the extended end (200) and the top of the front windshield detected by the distance measuring sensor (40) is greater than a third preset value; If it is greater than a third preset value, starting the first driving member (30); If it is less than or equal to the third preset value, the first driving member (30) is not started.

17. The control method of the wiper assembly (2) according to claim 16, characterized in that: In the step of starting the first driving member (30) if the value is greater than the third preset value: The straight-line distance between the extended end (200) detected by the distance measuring sensor (40) and the top of the front windshield is d, and the third preset value is d0, so the extended distance of the second wiper arm (20) is: d-d0.

18. A vehicle (3), characterized in that include: A-pillar (110); The wiper assembly (2) according to any one of claims 10 to 12, wherein when the wiper assembly (2) is not in operation, the wiper arm assembly (1) is attached to the A-pillar (110), and the wiper arm assembly (1) closes the water flow channel between the engine bonnet and the front windshield.

19. The vehicle (3) according to claim 18, characterized in that The A-pillar (110) is provided with a drainage groove (111).

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