Windscreen wiper health state monitoring method and device, storage medium and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a windscreen wiper health state monitoring method and device, a storage medium and a vehicle. The method for monitoring the health state of the windscreen wiper comprises the steps that the number of movement blocking times of a transmission mechanism of the windscreen wiper within set time is obtained; and comparing the motion blocking times with a motion blocking time threshold value corresponding to the fatigue life of the transmission mechanism, and determining the health state of the windscreen wiper according to a comparison result. According to the technical scheme, the driving safety is improved, the personal safety is guaranteed, and then the user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a method, a device, a storage medium and a vehicle for monitoring the health status of a wiper. Background Art

[0002] With the improvement of vehicle manufacturing technology and user needs, the application of intelligence in vehicles is becoming more and more popular. As one of the indispensable safety parts in vehicles, wipers have also been widely added with intelligent elements such as electronic wipers. Compared with traditional wipers, electronic wipers can adapt to more severe working conditions. Since wipers are moving parts and encounter complex working conditions, especially when facing stalling and snow jam conditions, it is very easy to cause deformation of the wiper's transmission mechanism and parts, thereby affecting the wiper's wiping effect and the user's experience.

[0003] When the working conditions are complex, such as stalling and snow jam, the connecting rod and crank of the transmission mechanism in the wiper are greatly affected, causing a certain degree of damage to the connecting rod and crank in the transmission mechanism. Since the connecting rod and crank of the transmission mechanism have a limited life, when encountering multiple complex working conditions, it is easy to cause the connecting rod and crank to deform, causing the related parts to fall off, resulting in the failure of the wiper transmission mechanism, affecting the function of the wiper, and thus directly affecting the user's field of vision and reducing driving safety. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a wiper health status monitoring method, device, storage medium and vehicle, which are beneficial to improving driving safety and ensuring personal safety, thereby improving user experience.

[0005] In a first aspect, the present disclosure provides a method for monitoring the health status of a wiper blade, comprising:

[0006] Obtain the number of times the wiper's transmission mechanism is blocked within a set time;

[0007] The movement obstruction times are compared with a movement obstruction times threshold corresponding to the fatigue life of the transmission mechanism, and the wiper health state is determined according to the comparison result.

[0008] In some embodiments, before obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within a set time, the wiper health status monitoring method further includes:

[0009] Based on the fact that the motor speed of the wiper is less than the speed threshold, it is determined that the movement of the transmission mechanism of the wiper is blocked.

[0010] In some embodiments, obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within a set time includes:

[0011] Obtain the number of times the wiper's transmission mechanism is blocked in the middle area, the starting area, and the end area of ​​the wiper strip's motion range within a set time.

[0012] In some embodiments, obtaining the number of times that the transmission mechanism of the wiper is blocked from moving in the middle area of ​​the wiper strip moving range within a set time includes:

[0013] Determining the wiper strip position corresponding to the current crank rotation angle according to the relationship between the crank rotation angle of the transmission mechanism and the wiper strip position;

[0014] Determining that the wiper strip is located in the middle area of ​​the wiper strip motion range, and controlling to increase the motor torque of the wiper to make the transmission mechanism break free from the blocked position;

[0015] The number of times the motor torque of the wiper is increased is determined as the number of movement obstruction times;

[0016] The number of times the motor torque of the wiper is increased is controlled to be less than or equal to a threshold number.

[0017] In some embodiments, the wiper blade health status monitoring method further includes:

[0018] Obtain the crank fatigue life and connecting rod fatigue life of the transmission mechanism;

[0019] The shorter of the crank fatigue life and the connecting rod fatigue life is determined as the transmission mechanism fatigue life.

[0020] In some embodiments, after determining the wiper blade health status according to the comparison result, the wiper blade health status monitoring method further includes:

[0021] Output prompt information;

[0022] Among them, different wiper health states correspond to different prompt messages.

[0023] In some embodiments, determining the health status of the wiper according to the comparison result includes:

[0024] Dividing the threshold interval of the number of motion obstruction corresponding to the fatigue life of the transmission mechanism into at least two range intervals;

[0025] Determine the failure risk corresponding to the range interval to which the number of motion obstruction times belongs as the healthy state of the wiper;

[0026] Among them, different range intervals correspond to different failure risks; the larger the minimum value of the range interval is, the higher the corresponding failure risk is.

[0027] In a second aspect, the present disclosure further provides a wiper health status monitoring device, comprising:

[0028] An acquisition module, used to acquire the number of times the movement of the transmission mechanism of the wiper is blocked within a set time;

[0029] The determination module is used to compare the number of movement obstructions with a threshold of the number of movement obstructions corresponding to the fatigue life of the transmission mechanism, and determine the health state of the wiper according to the comparison result.

[0030] In a third aspect, the present disclosure further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a program or instruction, wherein the program or instruction enables a computer to execute the wiper health status monitoring method as described in the first aspect.

[0031] In a fourth aspect, the present disclosure further provides a vehicle, comprising: a processor and a memory, wherein the processor executes the wiper health status monitoring method as described in the first aspect by calling a program or instruction stored in the memory.

[0032] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0033] The wiper health status monitoring method provided in the disclosed embodiment includes: obtaining the number of movement obstructions of the wiper's transmission mechanism within a set time; comparing the number of movement obstructions with the number of movement obstruction thresholds corresponding to the fatigue life of the transmission mechanism, and determining the wiper health status according to the comparison result. Thus, the wiper health status is determined by the number of movement obstructions of the wiper's transmission mechanism within the set time and the comparison result of the number of movement obstructions and the number of movement obstruction thresholds. After obtaining the wiper health status, the wiper risk level can be identified according to the wiper health status, and the user can be reminded to promptly inspect or replace the wiper according to the risk level of the wiper to prevent the wiper from failing when driving in rainy days, which is beneficial to improving driving safety and ensuring personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 A schematic diagram of a flow chart of a method for monitoring the health status of a wiper provided in an embodiment of the present disclosure;

[0037] Figure 2A schematic diagram of a wiper strip motion range provided by an embodiment of the present disclosure;

[0038] Figure 3 A schematic diagram of the structure of a wiper health status monitoring device provided by an embodiment of the present disclosure;

[0039] Figure 4 A schematic diagram of the structure of a vehicle provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0042] The wiper health status monitoring method provided by the disclosed embodiment determines the wiper health status by comparing the number of movement obstructions of the wiper transmission mechanism within a set time with the movement obstruction threshold. After obtaining the wiper health status, the wiper risk level can be identified based on the wiper health status. According to the wiper risk level, the user can be reminded to perform timely inspection or replacement of the wiper to prevent the wiper from failing when driving in rainy days, which is beneficial to improving driving safety and ensuring personal safety.

[0043] The wiper health status monitoring method, device, storage medium and vehicle provided in the embodiments of the present disclosure are exemplarily described below in conjunction with the accompanying drawings.

[0044] Figure 1 The present invention provides a flow chart of a method for monitoring the health status of a windshield wiper provided in an embodiment of the present invention. The method is applicable to application scenarios for monitoring the health status of a windshield wiper. The method can be executed by a windshield wiper health monitoring device provided in an embodiment of the present invention, and the windshield wiper health monitoring device can be implemented in software and / or hardware. Figure 1 As shown, the wiper health monitoring method includes the following steps:

[0045] S101, obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within a set time.

[0046] The set time is, for example but not limited to, one month, thereby obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within one month.

[0047] Specifically, during the operation of the wiper, the wiper strip in the wiper moves back and forth within the wiper strip movement range. When the wiper strip encounters working conditions such as stalling and snow blocking during the back and forth wiping process, the wiper strip is obstructed, resulting in the wiper strip being unable to continue to move, and correspondingly, the transmission mechanism of the wiper is also obstructed.

[0048] Compared with the normal movement of the wiper transmission mechanism, when the wiper transmission mechanism is blocked, i.e., moves abnormally, damage is caused to the wiper transmission mechanism, such as a certain degree of damage to the connecting rod and the crank in the wiper transmission mechanism. Therefore, obtaining the number of times the movement of the wiper transmission mechanism is blocked is equivalent to obtaining the number of times the wiper transmission mechanism is damaged.

[0049] Among them, the wiper includes a wiper strip, a transmission mechanism and a motor. The transmission mechanism includes a connecting rod and a crank. The transmission mechanism drives the wiper strip to move, and the motor provides power for the transmission mechanism. The specific working principle of the wiper is a well-known technology for technicians in this field and will not be described in detail here.

[0050] In some embodiments, before obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within a set time, the wiper health status monitoring method further includes:

[0051] Based on the motor speed of the wiper being less than the speed threshold, it is determined that the movement of the transmission mechanism of the wiper is obstructed.

[0052] Specifically, during the operation of the wiper, the motor speed is obtained, and when it is detected that the motor speed is less than the speed threshold, it can be determined that the movement of the wiper transmission mechanism is blocked. For example, the speed threshold can be calibrated in advance, for example, when the wiper strip is blocked or blocked by snow, the corresponding motor speed can be obtained and used as the speed threshold.

[0053] In some embodiments, obtaining the number of times the movement of the transmission mechanism of the wiper is blocked within a set time includes:

[0054] Obtain the number of times the wiper's transmission mechanism is blocked in the middle area, the starting area, and the end area of ​​the wiper strip's motion range within a set time.

[0055] Specifically, the wiper strip performs upward and downward reciprocating motion on the vehicle's windshield, the starting area is the starting area for the upward motion of the wiper strip, and the end area is the end area for the upward motion of the wiper strip; or, the starting area is the end area for the downward motion of the wiper strip, and the end area is the starting area for the downward motion of the wiper strip.

[0056] For example, Figure 2 Schematic diagram of a wiper strip motion range provided by an embodiment of the present disclosure. Figure 2As shown, the movement range of the wiper strip in the field of view windshield is, for example, a 90-degree fan-shaped area. Wherein, the fan-shaped area includes the middle area, the starting area and the end area of ​​the movement range of the wiper strip.

[0057] When it snows, the snow on the windshield is scraped by the wiper strips to both sides, namely the starting area and the end area, resulting in snow accumulation in the starting area and the end area. When the wiper strips move to the starting area and the end area, they are blocked by the snow. The wiper strips are blocked in the starting area and the end area, and the number of times the wiper transmission mechanism is blocked in the starting area and the end area can be obtained. The blocked working conditions of the wiper strips in the starting area and the end area are regarded as the working conditions of the wiper strips encountering snow as mentioned above.

[0058] If there is a foreign object in the middle area of ​​the wiper strip's motion range, the wiper strip's motion may be obstructed. If the wiper strip is obstructed in the middle area, the number of times the wiper's transmission mechanism is obstructed in the middle area can be obtained. The obstruction condition of the wiper strip in the middle area is regarded as the wiper strip's stall condition mentioned above.

[0059] Thus, the number of times the movement of the transmission mechanism of the wiper is blocked in the middle area, the starting area and the end area of ​​the movement range of the wiper strip within a set time can be obtained.

[0060] In some embodiments, obtaining the number of times that the transmission mechanism of the wiper is blocked in the middle area of ​​the wiper strip motion range within a set time includes:

[0061] Determining the wiper strip position corresponding to the current crank rotation angle according to the relationship between the crank rotation angle of the transmission mechanism and the wiper strip position;

[0062] Determine that the wiper strip is located in the middle of the wiper strip motion range, and control to increase the motor torque of the wiper to free the transmission mechanism from the blocked position;

[0063] The number of times the motor torque of the wiper is increased is determined as the number of movement obstruction times;

[0064] The number of times the motor torque of the wiper is increased is controlled to be less than or equal to a threshold number.

[0065] Specifically, there is a one-to-one correspondence between the rotation angle of the crank and the position of the wiper strip. According to the one-to-one correspondence, after obtaining the rotation angle of the crank in the transmission mechanism, the specific position of the wiper strip in its motion range can be determined. Figure 2In other embodiments, the location area of ​​the wiper strip may be obtained according to well-known technical means of those skilled in the art, which is not specifically limited here.

[0066] When it is determined that the movement of the wiper's transmission mechanism is obstructed and the wiper strip is located in the middle area, in order to avoid the wiper strip being located in the middle area blocking the user's field of vision, the motor torque of the wiper is controlled to increase in an attempt to break free from the obstructed position of the transmission mechanism, and the number of times the motor torque of the wiper is controlled to increase is determined as the number of movement obstructions.

[0067] Exemplarily, the number threshold is, for example but not limited to, 3. When it is determined that the transmission mechanism of the wiper is blocked and the wiper strip is located in the middle area, the motor torque of the wiper is increased to make a first attempt. If the transmission mechanism fails to break free from the blocked position, it can be recorded as a movement blockage. If the transmission mechanism successfully breaks free from the blocked position, it can also be recorded as a movement blockage. That is, the transmission mechanism is recorded as a movement blockage regardless of whether it successfully breaks free from the blocked position.

[0068] If the transmission mechanism fails to break free from the obstructed position in the first attempt, the motor torque of the wiper is increased for a second attempt. If the transmission mechanism fails to break free from the obstructed position, it can be recorded as a movement obstruction. If the transmission mechanism successfully breaks free from the obstructed position, it can also be recorded as a movement obstruction. In other words, regardless of whether the transmission mechanism successfully breaks free from the obstructed position, it can be recorded as a movement obstruction.

[0069] If the transmission mechanism fails to break free from the obstructed position in the second attempt, the motor torque of the wiper is increased again for the third attempt. If the transmission mechanism fails to break free from the obstructed position, it can be recorded as one movement obstruction. If the transmission mechanism successfully breaks free from the obstructed position, it can also be recorded as one movement obstruction. That is, whether the transmission mechanism successfully breaks free from the obstructed position or not, it is recorded as one movement obstruction. Therefore, the number of times the motor torque of the wiper is increased is determined as the number of movement obstructions.

[0070] If the third attempt to break free is unsuccessful, it can be considered that the transmission mechanism cannot break free from the obstructed position by controlling to increase the motor torque of the wiper. At this time, the transmission mechanism is no longer freed from the obstructed position by controlling to increase the motor torque of the wiper, that is, the number of times the motor torque of the wiper is controlled to be increased is less than or equal to the number threshold.

[0071] It should be noted that, for the middle area of ​​the wiper strip's movement range, in order to avoid the wiper strip being located in the middle area and blocking the user's field of vision, the motor torque of the wiper is controlled to increase in an attempt to break free from the obstructed position of the transmission mechanism, and the number of times the motor torque of the wiper is controlled to increase is determined as the number of movement obstructions.

[0072] For the starting area or the end area of ​​the wiper strip movement range, the main consideration in the starting area or the end area is the obstruction caused by snow. Once the wiper strip movement is determined to be obstructed, the movement obstruction is recorded once, and there is no need to break free from the obstructed position. Because it is impossible to break free when there is snow in the starting area or the end area, the wiper strip can be controlled to move in the opposite direction. For example, Figure 2 As shown, when snow jam occurs in the starting area or the end area, a motion obstruction is recorded. When the wiper strip encounters snow jam, the wiper strip moves in the opposite direction, and the wiping angle of the wiper strip is reduced, for example, from the normal wiping angle of 90 degrees to 85 degrees. After the wiper strip has been wiping for a period of time, the wiper strip tries to increase the wiping angle, for example, from 85 degrees to 90 degrees. If there is still snow obstruction, that is, the wiper strip fails to increase the wiping angle, and a motion obstruction is recorded. In this way, the number of times the wiper's transmission mechanism is obstructed in the starting area and the end area of ​​the wiper strip's motion range is determined.

[0073] S102: Compare the number of motion obstruction times with a threshold of the number of motion obstruction times corresponding to the fatigue life of the transmission mechanism, and determine the health state of the wiper according to the comparison result.

[0074] Specifically, one obstruction of the transmission mechanism movement is equivalent to one damage to the wiper transmission mechanism. After the wiper transmission mechanism is damaged multiple times, the wiper transmission mechanism undergoes micro-deformation, which results in the risk of failure of the wiper function. Based on this, the number of obstructions to the movement of the wiper transmission mechanism when micro-deformation occurs is used as the threshold of the number of obstructions to the fatigue life of the transmission mechanism.

[0075] Thus, the acquired number of movement obstructions of the wiper transmission mechanism within the set time is compared with the movement obstruction number threshold to obtain a comparison result, and the wiper health state is determined according to the comparison result. How to determine the wiper health state according to the comparison result is described in detail below.

[0076] It should be noted that the transmission mechanism also includes the transmission mechanism fatigue extension life and the transmission mechanism failure life. Among them, the transmission mechanism fatigue extension life is equivalent to the number of times the wiper's transmission mechanism can continue to withstand movement obstruction after slight deformation occurs until the wiper's transmission mechanism is significantly deformed. When the wiper's transmission mechanism is significantly deformed, the wiper's function is at a greater risk of failure. The transmission mechanism failure life is equivalent to the number of times the wiper's transmission mechanism can continue to withstand movement obstruction after significant deformation occurs until the wiper's transmission mechanism fails.

[0077] In some embodiments, the wiper blade health status monitoring method further includes:

[0078] Obtain the crank fatigue life and connecting rod fatigue life of the transmission mechanism;

[0079] The shorter of the crank fatigue life and the connecting rod fatigue life is determined as the transmission mechanism fatigue life.

[0080] Specifically, the transmission mechanism includes a crank and a connecting rod, the crank and the connecting rod are mechanically connected, and the rotation of the crank drives the rotation of the connecting rod. The fatigue life of the crank and the fatigue life of the connecting rod are obtained respectively, and the shorter of the fatigue life of the crank and the fatigue life of the connecting rod is determined as the fatigue life of the transmission mechanism.

[0081] Exemplarily, a calibration experiment is performed to obtain the first number of obstructions to the transmission mechanism corresponding to when the crank is slightly deformed, and the second number of obstructions to the transmission mechanism corresponding to when the connecting rod is slightly deformed. The relationship between the first number of obstructions to the transmission mechanism and the second number of obstructions to the transmission mechanism is compared. If the first number of obstructions to the transmission mechanism is smaller than the second number of obstructions to the transmission mechanism, it can be considered that the fatigue life of the crank is smaller. In this case, the fatigue life of the crank is determined as the fatigue life of the transmission mechanism.

[0082] In some embodiments, determining the wiper health status according to the comparison result includes:

[0083] Dividing the threshold interval of the number of motion obstruction corresponding to the fatigue life of the transmission mechanism into at least two range intervals;

[0084] The failure risk corresponding to the range interval of the number of motion obstruction times is determined as the health state of the wiper;

[0085] Among them, different range intervals correspond to different failure risks; the larger the minimum value of the range interval, the higher the corresponding failure risk.

[0086] Specifically, the threshold interval of the number of motion obstructions corresponding to the fatigue life of the transmission mechanism can be divided into multiple range intervals, and the failure risks of the transmission mechanism corresponding to different range intervals are different. Based on the obtained number of motion obstructions of the transmission mechanism, the range interval to which the number of motion obstructions belongs is compared. After determining the range interval to which the number of motion obstructions belongs, the failure risk corresponding to the range interval is obtained, and the failure risk is determined as the healthy state of the wiper.

[0087] Exemplarily, the motion obstruction number threshold corresponding to the fatigue life of the transmission mechanism is N, and the motion obstruction number threshold interval is divided into five range intervals, for example, the first range interval is less than 0.2N, the second range interval is greater than or equal to 0.2N and less than 0.5N, the third range interval is greater than or equal to 0.5N and less than 0.9N, the fourth range interval is greater than or equal to 0.9N and less than N, and the fifth range interval is greater than or equal to N. Among them, the failure risks corresponding to the first range interval, the second range interval, the third range interval, the fourth range interval and the fifth range interval increase in sequence.

[0088] For example, the first range interval may correspond to normal function of the wiper, and when the number of obstructions to the transmission mechanism is obtained and is within the first range interval, the healthy state of the wiper can be determined as normal function of the wiper; the second range interval may correspond to the existence of first maintenance level damage of the wiper, and when the number of obstructions to the transmission mechanism is obtained and is within the second range interval, the healthy state of the wiper can be determined as the risk of first maintenance level damage; the third range interval may correspond to the existence of second maintenance level damage of the wiper, and when the number of obstructions to the transmission mechanism is obtained and is within the third range interval, the healthy state of the wiper can be determined as the risk of second maintenance level damage; the fourth range interval may correspond to the existence of third maintenance level damage of the wiper, and when the number of obstructions to the transmission mechanism is obtained and is within the fourth range interval, the healthy state of the wiper can be determined as the risk of third maintenance level damage; the fifth range interval may correspond to the existence of replacement level damage of the wiper, and when the number of obstructions to the transmission mechanism is obtained and is within the fifth range interval, the healthy state of the wiper can be determined as the risk of replacement level damage.

[0089] Among them, the damage degrees represented by the first maintenance level damage, the second maintenance level damage and the third maintenance level damage increase in sequence.

[0090] In some embodiments, after determining the wiper blade health status according to the comparison result, the wiper blade health status monitoring method further includes:

[0091] Output prompt information;

[0092] Among them, different wiper health states correspond to different prompt messages.

[0093] Specifically, after determining the health status of the wiper according to the comparison result, corresponding prompt information can be output according to the corresponding health status of the wiper, and the user can obtain the health status of the wiper through the prompt information to replace or repair the wiper. For example, the prompt information can be output through a vehicle-mounted display device such as a display screen to remind the user to replace or repair the wiper in time to improve driving safety. The prompt information can also be issued through a vehicle-mounted sound device such as a speaker to remind the user to replace or repair the wiper in time to improve driving safety.

[0094] In combination with the foregoing, when it is determined that the wiper health status is that the wiper functions normally, for example, a green prompt message may be issued to the user through the vehicle display screen; when it is determined that the wiper health status is that there is a risk of first maintenance level damage, for example, a blue prompt message may be issued to the user through the vehicle display screen; when it is determined that the wiper health status is that there is a risk of second maintenance level damage, for example, a yellow prompt message may be issued to the user through the vehicle display screen; when it is determined that the wiper health status is that there is a risk of third maintenance level damage, an orange prompt message may be issued to the user through the vehicle display screen; when it is determined that the wiper health status is that there is a risk of replacement level damage, a prompt message of "replace transmission mechanism" may be output to the user through the vehicle display screen.

[0095] The wiper health status monitoring method provided by the disclosed embodiment includes: obtaining the number of movement obstructions of the wiper's transmission mechanism within a set time; comparing the number of movement obstructions with the number of movement obstruction thresholds corresponding to the fatigue life of the transmission mechanism, and determining the wiper health status according to the comparison result. Thus, the wiper health status is determined by the number of movement obstructions of the wiper's transmission mechanism within a set time and the comparison result of the number of movement obstructions and the number of movement obstruction thresholds. After obtaining the wiper health status, the wiper risk level can be identified based on the wiper health status. According to the wiper risk level, the user can be reminded to promptly inspect or replace the wiper to prevent the wiper from failing when driving in rainy days, which is beneficial to improving driving safety and ensuring personal safety.

[0096] Based on the same inventive concept, the present disclosure also provides a wiper health status monitoring device. Figure 3 The structure diagram of a wiper health status monitoring device provided by the embodiment of the present disclosure is shown in FIG. Figure 3 As shown, the wiper health status monitoring device includes: an acquisition module 31, used to obtain the number of movement obstructions of the wiper's transmission mechanism within a set time; a determination module 32, used to compare the number of movement obstructions with the number of movement obstructions threshold corresponding to the fatigue life of the transmission mechanism, and determine the wiper health status based on the comparison result.

[0097] The wiper health status monitoring device provided in the above embodiments can execute any of the wiper health status monitoring methods provided in the above embodiments, and has the same or corresponding beneficial effects, which will not be described one by one here.

[0098] The embodiment of the present disclosure also provides a computer storage medium, which stores a program or instruction, and the program or instruction enables a computer to execute the steps of any one of the wiper health status monitoring methods provided in the above embodiments.

[0099] Exemplarily, the program or instruction enables the computer to execute a method for monitoring the health status of a wiper, the method for monitoring the health status of a wiper comprising:

[0100] Obtain the number of times the wiper's transmission mechanism is blocked within a set time;

[0101] The number of motion obstruction times is compared with a threshold of the number of motion obstruction times corresponding to the fatigue life of the transmission mechanism, and the health state of the wiper is determined based on the comparison result.

[0102] In some embodiments, the computer executable instructions, when executed by a computer processor, can also be used to execute the technical solutions of any of the above-mentioned wiper health status monitoring methods provided in the embodiments of the present disclosure to achieve corresponding beneficial effects.

[0103] Through the above description of the implementation methods, the technical personnel in the relevant field can clearly understand that the present disclosure can be implemented with the help of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present disclosure can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the wiper health status monitoring method in each embodiment of the present invention.

[0104] Based on the above implementation, the present disclosure also provides a vehicle. Figure 4 A schematic diagram of the structure of a vehicle provided in an embodiment of the present disclosure. Figure 4 As shown, it includes a processor 401 and a memory 402. The processor 401 executes the steps of any one of the wiper health status monitoring methods provided in the above-mentioned embodiments by calling the program or instructions stored in the memory. Therefore, it has the beneficial effects described in the above-mentioned embodiments and will not be repeated here.

[0105] like Figure 4As shown, the vehicle may include at least one processor 401, at least one memory 402, and at least one communication interface 403. The various components in the vehicle are coupled together via a bus system 404. The communication interface 403 is used to transmit information with external devices. It is understood that the bus system 404 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 404 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 404 is not described in detail. Figure 4 Various buses are labeled as bus system 404 .

[0106] It can be understood that the memory 402 in this embodiment can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. In some embodiments, the memory 402 stores the following elements: executable units or data structures, or their subsets, or their extended sets of operating systems and applications. In an embodiment of the present invention, the processor 401 executes the steps of each embodiment of the wiper health status monitoring method provided in the embodiment of the present disclosure by calling the program or instruction stored in the memory 402.

[0107] The wiper health status monitoring method provided by the embodiment of the present disclosure can be applied to the processor 401, or implemented by the processor 401. The processor 401 can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 401 or the instructions in the form of software. The above-mentioned processor 401 can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0108] The steps of the wiper health status monitoring method provided by the embodiment of the present disclosure can be directly embodied as being executed by a hardware decoding processor, or being executed by a combination of hardware and software units in the decoding processor. The software unit can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the method in combination with its hardware.

[0109] The vehicle may also include a physical component, or multiple physical components, according to the instructions generated by the processor 401 when executing the wiper health status monitoring method provided in the embodiment of the present application. Different physical components can be set inside the vehicle, or outside the vehicle, such as a cloud server, etc. Each physical component cooperates with the processor 401 and the memory 402 to realize the function of the wiper health status monitoring in this embodiment.

[0110] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0111] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for monitoring the health status of a wiper, characterized in that: include: Obtain the number of times the wiper's transmission mechanism is blocked within a set time; The movement obstruction times are compared with a movement obstruction times threshold corresponding to the fatigue life of the transmission mechanism, and the wiper health state is determined according to the comparison result.

2. The wiper blade health status monitoring method according to claim 1, characterized in that: Before obtaining the number of times the wiper transmission mechanism is blocked within a set time, it also includes: Based on the fact that the motor speed of the wiper is less than the speed threshold, it is determined that the movement of the transmission mechanism of the wiper is blocked.

3. The wiper blade health status monitoring method according to claim 1, characterized in that: The method of obtaining the number of times the wiper transmission mechanism is blocked within a set time includes: Obtain the number of times the wiper's transmission mechanism is blocked in the middle area, the starting area, and the end area of ​​the wiper strip's motion range within a set time.

4. The method for monitoring the health status of a wiper blade according to claim 3, characterized in that: The obtaining of the number of times that the transmission mechanism of the wiper is blocked from moving in the middle area of ​​the wiper strip moving range within a set time includes: Determining the wiper strip position corresponding to the current crank rotation angle according to the relationship between the crank rotation angle of the transmission mechanism and the wiper strip position; Determining that the wiper strip is located in the middle area of ​​the wiper strip motion range, and controlling to increase the motor torque of the wiper to make the transmission mechanism break free from the blocked position; The number of times the motor torque of the wiper is increased is determined as the number of movement obstruction times; The number of times the motor torque of the wiper is increased is controlled to be less than or equal to a threshold number.

5. The method for monitoring the health status of a wiper blade according to claim 1, characterized in that: Also includes: Obtain the crank fatigue life and connecting rod fatigue life of the transmission mechanism; The shorter of the crank fatigue life and the connecting rod fatigue life is determined as the transmission mechanism fatigue life.

6. The method for monitoring the health status of a wiper blade according to claim 1, characterized in that: Determining the health status of the wiper according to the comparison result includes: Dividing the threshold interval of the number of motion obstruction corresponding to the fatigue life of the transmission mechanism into at least two range intervals; Determine the failure risk corresponding to the range interval to which the number of motion obstruction times belongs as the healthy state of the wiper; Among them, different range intervals correspond to different failure risks; the larger the minimum value of the range interval is, the higher the corresponding failure risk is.

7. The method for monitoring the health status of a wiper blade according to claim 1, characterized in that: After determining the health status of the wiper according to the comparison result, the method further includes: Output prompt information; Among them, different wiper health states correspond to different prompt messages.

8. A wiper health status monitoring device, characterized in that: include: An acquisition module, used to acquire the number of times the movement of the transmission mechanism of the wiper is blocked within a set time; The determination module is used to compare the number of movement obstructions with a threshold of the number of movement obstructions corresponding to the fatigue life of the transmission mechanism, and determine the health state of the wiper according to the comparison result.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program or an instruction, and the program or the instruction enables a computer to execute the wiper blade health status monitoring method according to any one of claims 1 to 7.

10. A vehicle, characterized in that: include: A processor and a memory, wherein the processor executes the wiper health status monitoring method as described in any one of claims 1 to 7 by calling a program or instruction stored in the memory.

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