A windshield wiper liquid monitoring alarm method, device, system and vehicle

Abstract

The present invention provides a wiper washer fluid monitoring alarm method, device, system and vehicle, which relates to the field of automobile technology. The method includes: when the wiper washer switch is triggered, obtaining the on-time of the wiper washer switch; performing time compensation on the on-time of the wiper washer switch to determine the single discharge time of the wiper washer fluid; determining the single discharge amount of the wiper washer fluid according to the single discharge time and the pump flow of the wiper washer fluid; performing pipeline reflux compensation on the single discharge amount to determine the single usage of the wiper washer fluid; determining the actual usage of the wiper washer fluid according to the single usage and the number of pipeline reflux compensations; and alarming the user when the actual usage exceeds the alarm threshold. The actual usage of the wiper washer fluid can be accurately monitored through algorithm compensation and the user can be reminded to add the washer fluid in time, thereby ensuring a clear driving field of vision and driving safety, and there is no need to install a liquid level sensor, which reduces costs.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a windshield wiper and washer fluid monitoring and alarming method, device, system and vehicle. Background Art

[0002] When there are stains on the windshield of a car, the driver usually uses the wiper system to scrape and clean it to ensure a clear view ahead. However, in actual use, since most vehicles do not have a reminder function for filling the washer fluid, the driver cannot find out in time that the washer fluid in the washer pot is insufficient, and the glass cannot be scraped clean at this time, which not only easily causes damage to the wiper system, but also affects the driving field of vision and poses a safety hazard.

[0003] Currently, vehicles with a washer fluid refill reminder function all use a liquid level sensor to implement it. That is, the liquid level sensor monitors the washer fluid level in the washer pot in real time, and reminds the driver to refill washer fluid when the liquid level is low. However, the cost of this solution is relatively high. Summary of the invention

[0004] The present invention provides a windshield wiper washing liquid monitoring alarm method, device, system and vehicle, so as to solve the problem of high cost of using a liquid level sensor to detect the washing liquid level in a washing pot.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a wiper washer fluid monitoring and alarm method, the method comprising:

[0007] When the wiper and washing switch is triggered, obtaining the on-time of the wiper and washing switch;

[0008] Performing time compensation on the duration of the wiper and washer switch being turned on to determine a single discharge duration of the wiper and washer fluid;

[0009] Determining a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid;

[0010] Performing pipeline reflux compensation on the single discharge amount to determine the single usage amount of the wiper washer fluid;

[0011] Determining the actual usage of the wiper washer fluid according to the single usage amount and the number of times of pipeline reflux compensation;

[0012] When the actual usage exceeds the alarm threshold, an alarm is issued to the user.

[0013] In one embodiment of the present invention, time compensation is performed on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid, including:

[0014] Obtaining a network transmission duration between the wiper and washer switch and a pump motor of the wiper and washer fluid;

[0015] A single discharge duration of the wiper and washer fluid is determined according to a difference between a turn-on duration of the wiper and washer switch and a network transmission duration.

[0016] In one embodiment of the present invention, the pipeline reflux compensation is performed on the single discharge amount to determine the single usage amount of the wiper washer fluid, including:

[0017] Obtain the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline;

[0018] Determining a single return flow rate of the wiper washer fluid according to the volume of the wiper washer pipeline;

[0019] The single usage amount of the wiper washer fluid is determined according to the difference between the single discharge amount and the single return amount of the wiper washer fluid.

[0020] In one embodiment of the present invention, determining the actual usage of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation includes:

[0021] When the wiper and washing switch is turned off, obtaining the shutdown time of the wiper and washing switch;

[0022] Determining the number of times of pipeline reflux compensation according to the number of times the shutdown time of the wiper and washing switch exceeds the shutdown time threshold;

[0023] The actual usage amount of the wiper washer fluid is determined according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

[0024] In one embodiment of the present invention, the method further includes:

[0025] Acquire a wiper washer fluid calibration signal, and obtain an initial amount of the wiper washer fluid according to the wiper washer fluid calibration signal;

[0026] Obtaining a remaining capacity of the wiper washer fluid according to an initial amount of the wiper washer fluid and an actual usage amount of the wiper washer fluid;

[0027] After the user is warned, the windshield wiper and washer fluid purchase service information is pushed to the user according to the remaining capacity of the windshield wiper and washer fluid.

[0028] In an embodiment of the present invention, the push frequency of the windshield wiper and washer fluid purchase service information increases as the remaining capacity of the windshield wiper and washer fluid decreases.

[0029] In one embodiment of the present invention, after the user is warned, according to the remaining capacity of the wiper washer fluid, the user is pushed a service information for purchasing the wiper washer fluid, including:

[0030] After the user is alerted, a purchase link for the wiper washer fluid is sent to the user according to the remaining capacity of the wiper washer fluid;

[0031] The windshield wiper washer fluid purchase operation is performed according to the purchase instruction and address information input by the user.

[0032] In a second aspect, an embodiment of the present invention provides a wiper washer fluid monitoring and alarm device, the device comprising:

[0033] The on-time acquisition module is used to acquire the on-time of the wiper and washing switch when the wiper and washing switch is triggered;

[0034] A time compensation module, used for performing time compensation on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid;

[0035] a single discharge amount determination module, used to determine a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid;

[0036] A reflux compensation module, used for performing pipeline reflux compensation on the single discharge amount to determine a single usage amount of the wiper washer fluid;

[0037] An actual usage amount determination module, used to determine the actual usage amount of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation;

[0038] The alarm module is used to alarm the user when the actual usage exceeds the alarm threshold.

[0039] In one embodiment of the present invention, the time compensation module includes:

[0040] A network delay acquisition submodule, used to acquire the network transmission time between the wiper and washer switch and the pump motor of the wiper and washer fluid;

[0041] The single discharge duration determination submodule determines the single discharge duration of the wiper and washer fluid according to the difference between the on-time of the wiper and washer switch and the network transmission time.

[0042] In one embodiment of the present invention, the reflux compensation module includes:

[0043] A single reflux flow acquisition submodule, used to acquire the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline, and determine the single reflux flow of the wiper and washing fluid according to the volume of the wiper and washing pipeline;

[0044] The single usage amount determination submodule is used to determine the single usage amount of the wiper washer fluid according to the difference between the single discharge amount and the single return amount of the wiper washer fluid.

[0045] In one embodiment of the present invention, the actual usage determination module includes:

[0046] A downtime determination submodule, used for obtaining the downtime of the wiper and washer switch when the wiper and washer switch is turned off;

[0047] A first determining submodule, configured to determine the number of times the pipeline reflux compensation is performed according to the number of times the shutdown time of the wiper and washing switch exceeds a shutdown time threshold;

[0048] The second determining submodule is used to determine the actual usage of the wiper washer fluid according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

[0049] In one embodiment of the present invention, the wiper washer fluid monitoring and alarm device further includes:

[0050] an initial quantity acquisition module, used for acquiring a wiper washer fluid calibration signal, and obtaining an initial quantity of the wiper washer fluid according to the wiper washer fluid calibration signal;

[0051] a remaining capacity determination module, configured to determine the remaining capacity of the wiper washer fluid according to the initial amount of the wiper washer fluid and the actual usage amount of the wiper washer fluid;

[0052] The information push module is used to push the windshield wiper washer fluid purchase service information to the user according to the remaining capacity of the windshield wiper washer fluid after alerting the user.

[0053] In a third aspect, an embodiment of the present invention provides a wiper and washer fluid monitoring and alarm system, the system comprising: a body control module, a wiper and washer switch assembly connected to the body control module, a multimedia host, a front smart fuse box and a vehicle networking system, wherein:

[0054] The wiper and washer switch assembly is used to obtain the wiper and washer switch signal and input it to the body control module;

[0055] The body control module is used to transmit a spraying operation instruction of the wiper and washer fluid to the front smart fuse box according to the wiper and washer switch signal transmitted by the wiper and washer switch assembly; it is also used to determine whether the actual usage of the wiper and washer fluid exceeds the alarm threshold after executing the wiper and washer fluid monitoring and alarm method proposed in the first aspect of the embodiment of the present invention, and send an alarm instruction to the multimedia host when the actual usage of the wiper and washer fluid exceeds the alarm threshold; it is also used to execute the wiper and washer fluid monitoring and alarm method proposed in the first aspect of the embodiment of the present invention, and send a wiper and washer fluid purchase service information push instruction to the vehicle networking system;

[0056] The front intelligent fuse box is used to control the pump motor to spray the wiper and washer fluid according to the spray operation instruction of the wiper and washer fluid transmitted by the body control unit;

[0057] The multimedia host is used to perform an alarm operation according to the alarm instruction transmitted by the body control module;

[0058] The vehicle networking system is used to push the windshield wiper and washer fluid purchase service information to the user according to the windshield wiper and washer fluid purchase service information push instruction transmitted by the body control module.

[0059] In a fourth aspect, an embodiment of the present invention provides a vehicle, the vehicle at least comprising the wiper and washer fluid monitoring and alarm system as proposed in the third aspect of the embodiment of the present invention.

[0060] Compared with the prior art, the present invention has the following advantages:

[0061] In an embodiment of the present invention, by performing time compensation on the duration of the wiper and washer switch being turned on, a more accurate actual working time of the pump motor can be obtained; by performing pipeline reflux compensation on a single discharge amount, the influence of the washing liquid stored in the washing liquid pipeline can be eliminated, thereby obtaining a more accurate actual usage amount; when the actual usage amount exceeds the alarm threshold, an alarm can be issued to the user. The present invention can accurately monitor the actual usage amount of the wiper and washer liquid through time compensation and reflux compensation, and promptly remind the user to add washing liquid when the actual usage amount exceeds the alarm threshold, thereby ensuring a clear driving field of vision and driving safety, and there is no need to install a liquid level sensor, which can effectively reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 The present invention is a flowchart of a method for monitoring and alarming windshield wiper washing fluid in an embodiment of the present invention.

[0064] Figure 2 It is a schematic diagram of a windshield wiper and washer fluid monitoring and alarm device in an embodiment of the present invention.

[0065] Figure 3 Schematic diagram of a wiper washer fluid monitoring and alarm system in an embodiment of the present invention.

[0066] Figure 4 Schematic diagram of a vehicle in an embodiment of the present invention.

[0067] Figure markings: 201-on-time acquisition module; 202-time compensation module; 203-single emission determination module; 204-reflux compensation module; 205-actual usage determination module; 206-alarm module; 3-wiper and washer fluid monitoring and alarm system; 301-body control module; 302-wiper and washer switch assembly; 303-multimedia host; 304-front smart fuse box; 305-vehicle networking system; 306-pump motor. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] In response to the technical problems raised in the background technology of the present invention, an embodiment of the present application proposes a wiper washer fluid monitoring and alarm method, which aims to replace the liquid level sensor through an algorithm to monitor the actual usage of the wiper washer fluid, and taking into account the influence of network transmission delay and the reflux phenomenon of the wiper washer fluid stored in the wiper washing pipeline, the corresponding time compensation and reflux compensation are adopted to eliminate the above influences, thereby more accurately monitoring the actual usage of the wiper washer fluid and promptly reminding the user to add washer fluid when the actual usage exceeds the alarm threshold, thereby ensuring a clear driving field of vision and driving safety. Since there is no need to install a liquid level sensor, the cost can be effectively reduced while realizing the low liquid level alarm reminder.

[0070] Reference Figure 1 , shows a wiper washer fluid monitoring and alarming method according to an embodiment of the present invention, and the method may specifically include the following steps:

[0071] Step S101, when the wiper and washing switch is triggered, obtaining the on-time of the wiper and washing switch;

[0072] In this embodiment, when the wiper and washing switch is triggered, the wiper and washing switch transmits a switch signal to the body control module, and the body control module receives the switch signal transmitted by the wiper and washing switch for timing, thereby monitoring the on-time of the wiper and washing switch. It should be noted that the wiper and washing switch of the present invention may at least include a front wiper and washing switch and a rear wiper and washing switch, wherein the front wiper and washing switch corresponds to the front wiper, and the rear wiper and washing switch corresponds to the rear washer.

[0073] Step S102, performing time compensation on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid;

[0074] In this embodiment, during the actual operation of the wiper and washing switch, there is a certain network transmission delay in signal transmission. Therefore, the connection time of the wiper and washing switch cannot accurately reflect the actual working time of the washing motor. It is necessary to perform time compensation on the connection time of the wiper and washing switch to determine the actual working time of the washing motor, that is, the single discharge time of the wiper and washing fluid.

[0075] Step S103, determining a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid;

[0076] In this embodiment, when the washing motor for driving the pump is working, the pump flow rate of the wiper washer fluid is constant, so the single discharge amount of the washer fluid can be obtained by multiplying the single discharge time and the pump flow rate of the wiper washer fluid.

[0077] Step S104, performing pipeline reflux compensation on the single discharge amount to determine a single usage amount of the wiper washer fluid;

[0078] In this embodiment, after each operation of the wiper, a portion of washing liquid will remain in the washing pipeline. This portion of washing liquid will flow back into the washing pot within a certain period of time. Therefore, it is necessary to perform pipeline reflux compensation for the single discharge amount to determine the actual amount of washing liquid consumed each time, that is, the single usage amount of the wiper washing liquid.

[0079] Step S105, determining the actual usage of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation;

[0080] In this embodiment, taking into account the situation that the wiper washer fluid is used multiple times, that is, there may be multiple reflux phenomena, so by obtaining the single usage amount of each wiper operation and the number of pipeline reflux compensations, a more accurate actual usage amount of the wiper washer fluid can be obtained.

[0081] Step S106: When the actual usage exceeds the alarm threshold, an alarm is issued to the user.

[0082] In this embodiment, when it is detected that the actual usage exceeds the alarm threshold, a low liquid level alarm signal can be sent to the user, and the corresponding remaining washing liquid capacity information can be sent. The alarm signal can be sent to the vehicle display screen or the user's mobile phone terminal, so that the user can understand the specific usage of the washing liquid.

[0083] In this embodiment, through time compensation and reflux compensation, the actual usage of wiper washer fluid can be accurately monitored and the user can be promptly reminded to add washer fluid when the actual usage exceeds the alarm threshold, thereby ensuring a clear driving field of vision and driving safety, and there is no need to install a liquid level sensor, which can effectively reduce costs.

[0084] In a feasible implementation manner, in step S102, the time compensation is performed on the on-time of the wiper and washer switch, and the specific steps of determining the single discharge time of the wiper and washer fluid may be:

[0085] Step S102-1, obtaining the network transmission time between the wiper and washer switch and the wiper and washer fluid pump motor;

[0086] Step S102-2, determining a single discharge duration of the wiper and washer fluid according to a difference between the on-time of the wiper and washer switch and the network transmission time.

[0087] In this embodiment, for a vehicle equipped with only a front wiper, the calculation formula for time compensation may be:

[0088] T = T1 + T2 - T3 (1);

[0089] In this embodiment, for a vehicle equipped with both a front wiper and a rear wiper, double time compensation is required when performing time compensation. The calculation formula for time compensation can be:

[0090] T = T1 + T2 - 2*T3 (2);

[0091] Wherein, T is the single discharge duration of the wiper washer fluid, T1 is the on-time duration of the front wiper washer switch, T2 is the on-time duration of the rear wiper washer switch, and T3 is the network transmission duration between the front / rear wiper washer switch and the pump motor of the wiper washer fluid. In this embodiment, step S104 performs pipeline reflux compensation on the single discharge amount, and the specific steps of determining the single usage amount of the wiper washer fluid may be:

[0092] Step S104-1, obtaining the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline;

[0093] The calculation formula for the volume of the wiper washing pipeline is:

[0094] V1=πr 2*L1 (3);

[0095] Among them, V1 is the volume of the wiper and washing pipeline, r is the volume of the wiper and washing pipeline, and L1 is the length of the wiper and washing pipeline.

[0096] It should be further explained in the present embodiment that, for vehicles with a backflow prevention device in the rear wiper and washing pipe, when performing calculations, only the length of the front wiper and washing pipe needs to be taken into account and the setting can be made according to the actual situation.

[0097] Step S104-2, determining a single return flow rate of the wiper washer fluid according to the volume of the wiper washer pipeline;

[0098] Step S104 - 3 , determining a single usage amount of the wiper washer fluid according to a difference between the single discharge amount and a single return amount of the wiper washer fluid.

[0099] Wherein, the specific steps of step S105 for determining the actual usage of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation may be:

[0100] Step S105-1, when the wiper and washing switch is turned off, obtaining the shutdown time of the wiper and washing switch;

[0101] Step S105-2, determining the number of times of pipeline reflux compensation according to the number of times the shutdown time of the wiper and washing switch exceeds the shutdown time threshold;

[0102] Step S105 - 3 , determining the actual usage of the wiper washer fluid according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

[0103] It should be noted that in this embodiment, since the wiper washer fluid stored in the wiper washing pipeline requires a certain amount of time to completely flow back into the washing pot, in this embodiment, a downtime threshold is set to determine whether the wiper washer fluid in the wiper washing pipeline has completely flowed back into the washing pot. Preferably, the downtime threshold is set to 24 hours, that is, after 24 hours after the wiper washing switch is turned off, it is determined that the wiper washer fluid has completely flowed back into the washing pot. At this time, the reflux times are increased by one, and so on.

[0104] In this embodiment, the calculation formula for the actual usage of the final wiper washer fluid is:

[0105] Vwarning = T*C-V1*N (5);

[0106] In the formula, T is the single discharge duration of the wiper washer fluid, C is the pump flow rate, V1 is the volume of the wiper washer pipeline, and N is the number of reflux times of the wiper washer fluid pipeline.

[0107] In a feasible implementation manner, the wiper washer fluid monitoring and alarm method may further include:

[0108] Step S107, obtaining a wiper washer fluid calibration signal, and obtaining an initial amount of the wiper washer fluid according to the wiper washer fluid calibration signal;

[0109] It should be noted that, since no liquid level sensor is used, the vehicle cannot know the content of the washing liquid in the washing pot at the initial state. Therefore, after adding the wiper washer liquid, the user needs to calibrate the wiper washer liquid in the human-computer interaction interface to obtain the initial amount of the wiper washer liquid for subsequent calculations.

[0110] Step S108, determining the remaining capacity of the wiper washer fluid according to the initial amount of the wiper washer fluid and the actual usage amount of the wiper washer fluid;

[0111] Step S109: after the user is warned, according to the remaining capacity of the windshield wiper and washer fluid, a windshield wiper and washer fluid purchase service information is pushed to the user.

[0112] Specifically, after the user is alerted, the corresponding washer fluid purchase service information is pushed to the user based on the remaining capacity of the wiper washer fluid, which may include a corresponding purchase confirmation signal. The user confirms by clicking and directly fills in the address information, thereby realizing a quick one-click purchase function.

[0113] Preferably, the push frequency of the wiper washer fluid purchase service information increases as the remaining capacity of the wiper washer fluid decreases, thereby realizing the push of SMS service information with different frequencies when the remaining capacity of the wiper washer fluid is at different stages, ensuring that the user can be reminded in time to refill the wiper washer fluid.

[0114] Based on the same inventive concept, Figure 2 According to an embodiment of the present invention, a wiper washer fluid monitoring and alarm device is provided, the device comprising:

[0115] The on-time acquisition module 201 is used to acquire the on-time of the wiper and washing switch when the wiper and washing switch is triggered;

[0116] A time compensation module 202, used for performing time compensation on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid;

[0117] A single discharge amount determination module 203, configured to determine a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid;

[0118] A reflux compensation module 204, used to perform pipeline reflux compensation on the single discharge amount to determine a single usage amount of the wiper washer fluid;

[0119] The actual usage amount determination module 205 is used to determine the actual usage amount of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation;

[0120] The alarm module 206 is used to alarm the user when the actual usage exceeds the alarm threshold.

[0121] In a feasible implementation manner, the time compensation module includes:

[0122] A network delay acquisition submodule, used to acquire the network transmission time between the wiper and washer switch and the pump motor of the wiper and washer fluid;

[0123] The single discharge duration determination submodule determines the single discharge duration of the wiper and washer fluid according to the difference between the on-time of the wiper and washer switch and the network transmission time.

[0124] In a feasible implementation manner, the reflux compensation module includes:

[0125] A single reflux flow acquisition submodule, used to acquire the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline, and determine the single reflux flow of the wiper and washing fluid according to the volume of the wiper and washing pipeline;

[0126] The single usage amount determination submodule is used to determine the single usage amount of the wiper washer fluid according to the difference between the single discharge amount and the single return amount of the wiper washer fluid.

[0127] In a feasible implementation manner, the actual usage determination module includes:

[0128] A downtime determination submodule, used for obtaining the downtime of the wiper and washer switch when the wiper and washer switch is turned off;

[0129] A first determining submodule, configured to determine the number of times the pipeline reflux compensation is performed according to the number of times the shutdown time of the wiper and washing switch exceeds a shutdown time threshold;

[0130] The second determining submodule is used to determine the actual usage of the wiper washer fluid according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

[0131] In a feasible implementation manner, the wiper washer fluid monitoring and alarm device further includes:

[0132] an initial quantity acquisition module, used for acquiring a wiper washer fluid calibration signal, and obtaining an initial quantity of the wiper washer fluid according to the wiper washer fluid calibration signal;

[0133] a remaining capacity determination module, configured to determine the remaining capacity of the wiper washer fluid according to the initial amount of the wiper washer fluid and the actual usage amount of the wiper washer fluid;

[0134] The information push module is used to push the windshield wiper washer fluid purchase service information to the user according to the remaining capacity of the windshield wiper washer fluid after alerting the user.

[0135] Based on the same inventive concept, Figure 3 An embodiment of the present invention provides a wiper and washer fluid monitoring and alarm system 3, which includes: a body control module 301, a wiper and washer switch assembly 302, a multimedia host 303, a front smart fuse box 304 and a vehicle networking system 305 respectively connected to the body control module 301.

[0136] Specifically, the wiper and washing switch assembly 302 is used to obtain the wiper and washing switch signal and input it to the body control module 301, wherein the wiper and washing switch signal is an analog quantity. The body control module 301 converts the analog signal type of the washing switch signal input by the wiper and washing switch into a spray operation instruction of the digital signal type through a built-in analog-to-digital conversion device, and transmits the spray operation instruction to the front smart fuse box 304. The front smart fuse box 304 receives the spray operation instruction to control the pump motor 306 to spray the wiper and washing liquid. It should be noted that the wiper and washing switch assembly 302 and the body controller 301 usually use the CAN network for signal transmission. Combined with the network transmission characteristics of the CAN network in the vehicle system, as one of the preferred solutions, the network transmission time T3 between the front / rear wiper and washing switch and the wiper and washing liquid pump motor can be 130ms.

[0137] During the control process, the body control module 301 determines whether the actual usage of the wiper washer fluid exceeds the alarm threshold by executing the wiper washer fluid monitoring and alarm method proposed in the first aspect of the embodiment of the present invention, and sends an alarm instruction to the multimedia host 303 when the actual usage of the wiper washer fluid exceeds the alarm threshold. The multimedia host 303 performs an alarm operation according to the alarm instruction transmitted by the body control module 301, wherein the alarm signal can be a light alarm signal, and the corresponding pop-up information can be displayed on the vehicle-mounted display screen. Preferably, the multimedia host 303 receives the remaining washer fluid capacity information sent by the body control module 301, and realizes the human-computer interaction system query through the multimedia host 303.

[0138] The body control module 301 is also used to execute the wiper washer liquid monitoring and alarm method proposed in the first aspect of the embodiment of the present invention, and send a wiper washer liquid purchase service information push instruction to the vehicle networking system 305; the vehicle networking system 305 is used to push the wiper washer liquid purchase service information to the user according to the wiper washer liquid purchase service information push instruction transmitted by the body control module 301. Preferably, after receiving the wiper washer liquid purchase service information push instruction transmitted by the body control module 301, the vehicle networking system 305 forwards it to the backend service system. After receiving the wiper washer liquid purchase service information push instruction, the backend service system pushes the wiper washer liquid purchase service information to the user. The wiper washer liquid purchase service information may include corresponding purchase confirmation signaling. The user confirms by clicking and directly fills in the address information, so as to realize a quick one-click purchase function. Preferably, the push frequency of the wiper washer liquid purchase service information increases with the decrease of the remaining capacity of the wiper washer liquid, so as to realize the push of SMS service information of different frequencies when the remaining capacity of the wiper washer liquid is at different stages, so as to ensure that the user can be reminded to add the wiper washer liquid in time.

[0139] Based on the same inventive concept, Figure 4 The embodiment of the present invention provides a vehicle, the vehicle at least comprising the wiper washer fluid monitoring alarm system 3 as proposed in the third aspect of the embodiment of the present invention. The system is used to perform time compensation and reflux compensation during the use of the wiper washer fluid, and the actual usage of the wiper washer fluid can be accurately monitored and the user can be reminded to add the washer fluid in time when the actual usage exceeds the alarm threshold, thereby ensuring a clear driving field of vision and vehicle driving safety, and there is no need to install a liquid level sensor, which can reduce vehicle costs.

[0140] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0141] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0142] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0143] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0144] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0145] Finally, it should be noted that, in this article, relational terms such as first and second, etc. 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 terminal 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 terminal 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 terminal device including the elements.

[0146] The above is a detailed introduction to the wiper washer fluid monitoring alarm method, device, medium and vehicle provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A windshield wiper washer fluid monitoring and alarm method, characterized in that: The method comprises: When the wiper and washing switch is triggered, obtaining the on-time of the wiper and washing switch; Performing time compensation on the duration of the wiper and washer switch being turned on to determine a single discharge duration of the wiper and washer fluid; Determining a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid; Performing pipeline reflux compensation on the single discharge amount to determine the single usage amount of the wiper washer fluid; The single discharge amount is compensated for by pipeline reflux to determine the single usage amount of the wiper washer fluid, including: Obtain the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline; Determining a single return flow rate of the wiper washer fluid according to the volume of the wiper washer pipeline; determining a single usage amount of the wiper washer fluid according to a difference between the single discharge amount and a single return amount of the wiper washer fluid; Determining the actual usage of the wiper washer fluid according to the single usage amount and the number of times of pipeline reflux compensation; When the actual usage exceeds the alarm threshold, an alarm is issued to the user.

2. The windshield wiper and washer fluid monitoring and alarm method according to claim 1, characterized in that: Performing time compensation on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid includes: Obtaining a network transmission duration between the wiper and washer switch and a pump motor of the wiper and washer fluid; A single discharge duration of the wiper and washer fluid is determined according to a difference between a turn-on duration of the wiper and washer switch and a network transmission duration.

3. The windshield wiper and washer fluid monitoring and alarm method according to claim 1, characterized in that: According to the single usage amount and the number of times of pipeline reflux compensation, the actual usage amount of the wiper washer fluid is determined, including: When the wiper and washing switch is turned off, obtaining the shutdown time of the wiper and washing switch; Determining the number of times of pipeline reflux compensation according to the number of times the shutdown time of the wiper and washing switch exceeds the shutdown time threshold; The actual usage amount of the wiper washer fluid is determined according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

4. The windshield wiper and washer fluid monitoring and alarm method according to claim 1, characterized in that: The method further comprises: Acquire a wiper washer fluid calibration signal, and obtain an initial amount of the wiper washer fluid according to the wiper washer fluid calibration signal; determining a remaining capacity of the wiper washer fluid according to an initial amount of the wiper washer fluid and an actual usage amount of the wiper washer fluid; After the user is warned, the windshield wiper and washer fluid purchase service information is pushed to the user according to the remaining capacity of the windshield wiper and washer fluid.

5. The windshield wiper and washer fluid monitoring and alarming method according to claim 4, characterized in that: The push frequency of the windshield wiper and washer fluid purchase service information increases as the remaining capacity of the windshield wiper and washer fluid decreases.

6. A windshield wiper and washing fluid monitoring and alarm device, characterized in that: include: A switch-on duration acquisition module, used to acquire the switch-on duration of the wiper and washing switch when the wiper and washing switch is triggered; A time compensation module, used for performing time compensation on the on-time of the wiper and washer switch to determine a single discharge time of the wiper and washer fluid; A single discharge amount determination module, used to determine a single discharge amount of the wiper washer fluid according to the single discharge duration and the pump flow rate of the wiper washer fluid; A reflux compensation module, used for performing pipeline reflux compensation on the single discharge amount to determine a single usage amount of the wiper washer fluid; Wherein, the reflux compensation module comprises: A single reflux flow acquisition submodule, used to acquire the volume of the wiper and washing pipeline according to the radius and length of the wiper and washing pipeline, and determine the single reflux flow of the wiper and washing fluid according to the volume of the wiper and washing pipeline; a single usage amount determination submodule, configured to determine a single usage amount of the wiper washer fluid according to a difference between the single discharge amount and a single return amount of the wiper washer fluid; An actual usage amount determination module, used to determine the actual usage amount of the wiper washer fluid according to the single usage amount and the number of times of the pipeline reflux compensation; The alarm module is used to alarm the user when the actual usage exceeds the alarm threshold.

7. The windshield wiper and washer fluid monitoring and alarm device according to claim 6, characterized in that: The actual usage determination module includes: A downtime determination submodule, used for obtaining the downtime of the wiper and washer switch when the wiper and washer switch is turned off; A first determining submodule, configured to determine the number of times the pipeline reflux compensation is performed according to the number of times the shutdown time of the wiper and washing switch exceeds a shutdown time threshold; The second determining submodule is used to determine the actual usage of the wiper washer fluid according to the single usage amount and the number of refluxes of the wiper washer fluid pipeline.

8. A windshield wiper and washing fluid monitoring and alarm system, characterized in that: include: Body control module, wiper and washer switch assembly, multimedia host, front smart fuse box and vehicle networking system connected to the body control module, among which, The wiper and washer switch assembly is used to obtain the wiper and washer switch signal and input it to the body control module; The body control module is used to transmit a spraying operation instruction of the wiper and washer fluid to the front smart fuse box according to the wiper and washer switch signal transmitted by the wiper and washer switch assembly; it is also used to determine whether the actual usage of the wiper and washer fluid exceeds the alarm threshold after executing the method according to any one of claims 1 to 3, and send an alarm instruction to the multimedia host when the actual usage of the wiper and washer fluid exceeds the alarm threshold; it is also used to execute the method according to claim 4 to send a wiper and washer fluid purchase service information push instruction to the car networking system; The front intelligent fuse box is used to control the pump motor to spray the wiper and washer fluid according to the spray operation instruction of the wiper and washer fluid transmitted by the body control module; The multimedia host is used to perform an alarm operation according to the alarm instruction transmitted by the body control module; The vehicle networking system is used to push the windshield wiper and washer fluid purchase service information to the user according to the windshield wiper and washer fluid purchase service information push instruction transmitted by the body control module.

9. A vehicle, characterized in that: At least includes the wiper and washer fluid monitoring and alarm system as described in claim 8.

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