An automatic gear intelligent control method and device for a car wiper

Abstract

The application discloses an intelligent control method and device for an automatic gear of a car wiper, and the method comprises the following steps: a manual trigger setting module sends a switching signal to a microprocessor; and the microprocessor controls the mutual switching of a "manual intermittent" working state and an "automatic intermittent" working state after receiving the switching signal. The application realizes the "intermittent gear" function of a traditional fixed intermittent time manual wiper and the automatic sensing wiper function of an automatic intermittent time through one-key operation, and the two functions can be switched by one key. The application avoids the malpractice that the simultaneous configuration of the two functions leads to complicated operation, improves the use experience, guarantees safe driving, and simultaneously reduces the cost of the simultaneous configuration of the two functions.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic control technology of automobile, and particularly relates to an intelligent control method and device for automatic gear of automobile wiper. BACKGROUND

[0002] The wiper is an indispensable electrical device for automobile. The automobile driver selects different adjustment gears of the wiper to make the wiper perform corresponding wiping operation, so as to help the automobile driver to obtain better observation field of view when driving in the rain, thereby effectively ensuring the driving safety.

[0003] It is known that the automobile wiper is divided into two categories: manual wiper and automatic induction wiper. The function realized by the "intermittent gear" in the adjustment gears of the manual wiper is to keep a pause time interval, i.e. intermittent time, between two continuous wiping actions of the wiper. In the working state of the "intermittent gear", the wiper performs periodic motion, and each complete wiper wiping motion cycle includes a motion time in which the wiper is in a motion state and an intermittent time in which the wiper is in a pause state. The motion state and the pause state of the wiper are alternately performed, and the process is repeated. In order to set a fixed intermittent time matched with the rain amount, the manual wiper intermittent gear usually selects one from a plurality of fixed intermittent time values (for example, the industry usually adjusts different intermittent times in the range of 2-12 seconds in several time values) through a manual gear switch. With the development of wiper technology, the automatic induction wiper with the automatic intermittent time adjustment function emerges as the times require. The automatic induction wiper can automatically adjust the intermittent time according to the rain amount sensed by the rain amount sensor: when the rain amount is large, the intermittent time is reduced, and when the rain amount is small, the intermittent time is increased, without any manual intervention. However, the automatic induction wiper still has the following disadvantages: due to the complexity and unpredictability of the change of the environment outside the vehicle during driving, such as the change of wind direction or wind force, road bumps, buildings or trees beside the road, etc., combined with the delay of the mechanical execution mechanism of the wiper and the individual differences of the driver's preference for the wiper wiping motion state, some drivers often feel that the wiper wiping motion (for example, suddenly starting to wipe for a few times or suddenly pausing) of the automatic induction wiper cannot be completely matched with the expectation of the driver, thereby making the driver feel that the automatic induction wiper is unstable and affecting the user experience.

[0004] In summary, on the one hand, the automatic induction wiper has poor stability during use, and on the other hand, although the manual wiper "intermittent gear" can fix the intermittent time, the wiper motion state will not be unstable due to the sudden change of the external environment, but it is obvious that the selection and setting of the intermittent time need manual operation, which is tedious. The ideal intermittent time matched with the rain amount can be accurately selected only through manual adjustment, which will inevitably distract the driver's attention and bring potential safety driving risks.

[0005] In addition, if it is required to have both manual intermittent gear and automatic gear functions, it is obviously necessary to configure both manual intermittent gear and automatic gear for the driver to select: if manual adjustment of fixed intermittent time is required, the wiper combination switch is set to manual intermittent gear; if automatic adjustment of intermittent time is required, the wiper combination switch is set to automatic gear; however, the reality is that the wiper with both manual and automatic functions is not only complicated to operate, but also increases the manufacturing cost, so the current configuration of the automobile wiper is that the wiper system with automatic adjustment of intermittent time and automatic sensing function no longer has the "manual intermittent gear" function, only an automatic gear, without a manual intermittent gear, which means that the automatic gear of the current automobile automatic sensing wiper loses the function of manual adjustment of intermittent time by the driver. The traditional practice of selecting only one of the "manual intermittent gear" function or the "automatic intermittent gear" function for the automobile wiper is undoubtedly a pity for the automobile driver, because different drivers always have different preferences in selecting functions. In the current automatic gear working state of the automobile wiper, although there is a sensitivity adjustment switch for the driver to set the intermittent time by setting different sensitivity of the rain sensor, but it cannot set the fixed intermittent time by sensitivity adjustment, i.e. it cannot set the intermittent time to a fixed value independent of the amount of rain, so as to effectively solve the problem of instability often occurring in the automatic gear working state. SUMMARY

[0006] The purpose of the present application is to solve the problems mentioned in the background section by an intelligent control method and device for the automatic gear of an automobile wiper.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] An intelligent control method for the automatic gear of an automobile wiper, the method comprising: a manual trigger setting module sending a switching signal to a microprocessor, the microprocessor receiving the switching signal and controlling the mutual switching of "manual intermittent" working state and "automatic intermittent" working state; wherein the "manual intermittent" working state and the "automatic intermittent" working state are two working states of the automatic gear of the automobile wiper; in the "manual intermittent" working state, the microprocessor no longer sends instructions to change the fixed intermittent time according to the amount of rain sensed by the rain sensor; in the "automatic intermittent" working state, the intermittent time changes with the change of the amount of rain sensed by the rain sensor.

[0009] In particular, the setting module comprises several setting switches, and the action of the microprocessor after each setting switch is triggered is predefined; when the automatic gear of the automobile wiper is in the "automatic intermittent" working state, manually triggering any setting switch in the setting module, the microprocessor will control the automobile wiper automatic gear to switch to the "manual intermittent" working state and execute the predefined action when the setting switch is triggered; when the automatic gear of the automobile wiper is in the "manual intermittent" working state, manually triggering any setting switch in the setting module, the microprocessor will control the automobile wiper automatic gear to switch to the "automatic intermittent" working state.

[0010] In particular, the action of the microprocessor after each setting switch is triggered is predefined, specifically including: presetting a virtual switch table with several time values, setting the corresponding relationship principle of the trigger signal of the setting switch and the virtual switch table, and after the setting switch is triggered, the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle, and sets the found time value as the fixed intermittent time of the "manual intermittent" working state.

[0011] In particular, when the automatic gear of the automobile wiper is in the "automatic intermittent" working state, if the function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "automatic intermittent" working state, wherein the expansion function includes but is not limited to adjusting the sensitivity of the rain sensor in the "automatic intermittent" working state, and different positions of the function expansion switch correspond to different sensitivities of the rain sensor.

[0012] In particular, when the automatic gear of the automobile wiper is in the "manual intermittent" working state, if the function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "manual intermittent" working state, wherein the expansion function includes but is not limited to setting the fixed intermittent time, and different positions of the function expansion switch correspond to different fixed intermittent times.

[0013] In particular, the display module displays the working state of the automobile wiper automatic gear under the control of the microprocessor, wherein the working state of the automobile wiper automatic gear includes but is not limited to whether the automobile wiper automatic gear is in the "manual intermittent" working state or the "automatic intermittent" working state, the fixed intermittent time in the "manual intermittent" working state, the intermittent time in the "automatic intermittent" working state, and the sensitivity of the rain sensor.

[0014] Based on the above-mentioned intelligent control method of the automatic gear of the automobile wiper, the application further discloses an intelligent control device of the automatic gear of the automobile wiper, which comprises a setting module and a microprocessor; the setting module is connected with the microprocessor and is used for sending a switching signal to the microprocessor after being triggered by a person; the microprocessor is used for controlling the mutual switching of a "manual intermittent" working state and an "automatic intermittent" working state after receiving the switching signal; the "manual intermittent" working state and the "automatic intermittent" working state are two working states of the automatic gear of the automobile wiper; in the "manual intermittent" working state, the microprocessor no longer sends an instruction to change the fixed intermittent time according to the rain amount sensed by the rain amount sensor; in the "automatic intermittent" working state, the intermittent time changes with the change of the rain amount sensed by the rain amount sensor.

[0015] In particular, the setting module comprises a plurality of setting switches and a setting signal generating circuit, the setting switches are electrically connected with the setting signal generating circuit, the setting signal generating circuit is connected with the microprocessor, the microprocessor is electrically connected with the rain amount sensor and an intermittent time output / control interface, and the intermittent time output / control interface is electrically connected with the wiper device; the intermittent time output / control interface is used for receiving the intermittent time setting instruction and the intermittent time value sent by the microprocessor and sending the intermittent time setting instruction and the intermittent time value to the wiper device; the action of the microprocessor after each setting switch in the setting module is triggered is predefined, when the automatic gear of the automobile wiper works in the "automatic intermittent" working state, any setting switch in the setting module is manually triggered by a person, the setting signal generating circuit converts the action of the switch into a corresponding setting electric signal and sends the setting electric signal to the microprocessor, and the microprocessor receives the setting signal and controls the automatic gear of the automobile wiper to switch to the "manual intermittent" working state and executes the predefined action of the setting switch when the setting switch is triggered; wherein the predefined action of the microprocessor after each setting switch is triggered includes but is not limited to: presetting a virtual switch table with a plurality of time values, setting the corresponding relationship principle of the trigger signal of the setting switch and the virtual switch table, finding the corresponding time value from the virtual switch table according to the corresponding relationship principle after the setting switch is triggered, and setting the found time value as the fixed intermittent time of the "manual intermittent" working state; when the automatic gear of the automobile wiper works in the "manual intermittent" working state, any setting switch in the setting module is manually triggered by a person, the setting signal generating circuit converts the action of the switch into a corresponding setting electric signal and sends the setting electric signal to the microprocessor, and the microprocessor receives the setting signal and controls the automatic gear of the automobile wiper to switch to the "automatic intermittent" working state.

[0016] In particular, the intelligent control device of the automatic gear of the automobile wiper further comprises a function expansion switch; the function expansion switch is connected with the microprocessor, and is used for: 1. When the automobile wiper automatic gear works in the "automatic intermittent" working state, if it is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "automatic intermittent" working state, wherein the expansion function includes but is not limited to adjusting the sensitivity of the rain sensor in the "automatic intermittent" working state, and the sensitivity of the rain sensor corresponding to different gears in the function expansion switch is different; 2. When the automobile wiper automatic gear works in the "manual intermittent" working state, if it is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "manual intermittent" working state, wherein the expansion function includes but is not limited to setting a fixed intermittent time, and the fixed intermittent time corresponding to different gears in the function expansion switch is different.

[0017] In particular, the intelligent control device of the automatic gear of the automobile wiper further comprises a display module; the display module is connected with the microprocessor, and is used for displaying the working state of the automobile wiper automatic gear under the control of the microprocessor, wherein the working state of the automobile wiper automatic gear includes but is not limited to whether the automobile wiper automatic gear is in the "manual intermittent" working state or the "automatic intermittent" working state, the fixed intermittent time in the "manual intermittent" working state, the intermittent time in the "automatic intermittent" working state, and the sensitivity of the rain sensor.

[0018] Compared with the prior art, the intelligent control method and device of the automatic gear of the automobile wiper provided by the application realize the "intermittent gear" function of the traditional fixed intermittent time manual wiper and the automatic intermittent time automatic sensing wiper function through one-key operation, and the two functions can be switched by one key. The application avoids the operation inconvenience caused by the simultaneous configuration of the two functions, improves the use experience, ensures safe driving, and reduces the cost of simultaneously configuring the two functions. Through one-key operation of the setting switch and the assistance of the rain sensor, the application can not only set the fixed intermittent time in the automatic gear working state of the wiper, but also set the ideal intermittent time matched with the current rainfall and the use preference of the driver through the assistance of the rain sensor. In the application, the driver can accurately and conveniently set the wiper to the "manual intermittent" working state or the "automatic intermittent" working state through one-key operation of a switch in the "automatic gear" working state of the wiper. The application uses the principle of automatically adjusting the corresponding intermittent time according to the real-time sensing of the rain amount outside the vehicle by the rain sensor, and through the assistance of the rain sensor, the ideal fixed intermittent time required by the driver can be selected and set by one-key operation, and the fixed intermittent time is displayed through the display module for the driver to check. Conversely, the driver can also realize the automatic gear returning to the "automatic intermittent" working state by one-key operation. In the control device of the application, the traditional method of setting the fixed intermittent time by manually selecting the gear position is not used, and the multi-gear physical electric gear switch contained in the manual wiper is not used. The application uses a virtual switch table with several time values, that is, a virtual multi-gear electric gear switch to realize the accurate selection of the ideal fixed intermittent time required by the driver and the display of the fixed intermittent time through the display module. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic diagram of the intelligent control device of the automatic gear of the automobile wiper provided by the embodiment of the application is shown in the figure.

[0020] Figure 2 The structure schematic diagram of the setting module circuit provided by the embodiment of the application is shown in the figure.

[0021] Figure 3 The application schematic diagram of the setting module provided by the embodiment of the application is shown in the figure.

[0022] Figure 4 The application schematic diagram of the setting module provided by the embodiment of the application is shown in the figure.

[0023] Figure 5 The application schematic diagram of the function expansion switch provided by the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0024] For the purpose of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. There can, of course, be many embodiments of the application and the specific embodiments described herein are not intended to limit the scope of the application but rather they are intended to provide exemplary embodiments of the application. It should be noted that, in the description of embodiments of the application, relative terms are used to generally describe their relationship to other elements. The terms "first", "second", "third", etc. are used to identify different elements, however, these elements should not be limited by these terms. The terms "and / or" and "at least one of" include any and all combinations of one or more of the associated listed items. The terms "comprises", "comprising", "including", "including", "having" and their conjugates mean "including but not limited to". This term encompasses the terms "consisting of" and "consisting essentially of".

[0025] The intelligent control method of the automatic gear of the automobile wiper in the embodiment comprises: a manual trigger setting module sends a switching signal to a microprocessor, and the microprocessor controls the mutual switching of a "manual intermittent" working state and an "automatic intermittent" working state after receiving the switching signal; wherein, the "manual intermittent" working state and the "automatic intermittent" working state are two working states of the automatic gear of the automobile wiper; in the "manual intermittent" working state, the microprocessor no longer sends an instruction to change the fixed intermittent time according to the amount of rainfall sensed by the rainfall sensor; in the "automatic intermittent" working state, the intermittent time changes with the change of the amount of rainfall sensed by the rainfall sensor, and the corresponding relationship between the amount of rainfall and the intermittent time is pre-set by the microprocessor.

[0026] Specifically, in the embodiment, the setting module comprises a plurality of setting switches, and the action of the microprocessor after each setting switch is triggered is pre-defined; when the automatic gear of the automobile wiper works in the "automatic intermittent" working state, any setting switch in the setting module is manually triggered, and the microprocessor will control the automatic gear of the automobile wiper to switch to the "manual intermittent" working state and execute the pre-defined action when the setting switch is triggered; when the automatic gear of the automobile wiper works in the "manual intermittent" working state, any setting switch in the setting module is manually triggered, and the microprocessor will control the automatic gear of the automobile wiper to switch to the "automatic intermittent" working state.

[0027] Specifically, in the embodiment, the action of the microprocessor after each setting switch is triggered is pre-defined, and specifically comprises: a virtual switch table with a plurality of time values is pre-set, the corresponding relationship principle between the trigger signal of the setting switch and the virtual switch table is set, and after the setting switch is triggered, the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle, and sets the found time value as the fixed intermittent time of the "manual intermittent" working state.

[0028] Specifically, in this embodiment, when the automatic mode of the car wipers is working in the "automatic intermittent" working state, if the function extension switch is manually triggered, the microprocessor executes the extended functions defined by the function extension switch in the "automatic intermittent" working state. The extended functions include, but are not limited to, adjusting the sensitivity of the rain sensor in the "automatic intermittent" working state. Different levels of the function extension switch correspond to different rain sensor sensitivities when triggered.

[0029] Specifically, in this embodiment, when the automatic mode of the car wiper is working in the "manual intermittent" working state, if the function extension switch is manually triggered, the microprocessor executes the extended function defined by the function extension switch in the "manual intermittent" working state. The extended function includes, but is not limited to, setting a fixed interval time, and different fixed interval times corresponding to different gears in the function extension switch.

[0030] The following detailed description of the intelligent control method for automatic windshield wipers from a practical application perspective, in conjunction with specific embodiments, is provided to support its technical concept: The implementation of the intelligent control method for automatic windshield wipers relies on the following intelligent control device for automatic windshield wipers.

[0031] like Figure 1 As shown, in this embodiment, the intelligent control device for the automatic mode of the car windshield wipers specifically includes a setting module and a microprocessor. The setting module is connected to the microprocessor and is used to send a switching signal to the microprocessor after manual triggering. The microprocessor is used to control the switching between the "manual intermittent" working state and the "automatic intermittent" working state after receiving the switching signal. The "manual intermittent" working state and the "automatic intermittent" working state are two working states of the automatic mode of the car windshield wipers. In the "manual intermittent" working state, the microprocessor no longer issues instructions to change the fixed interval time according to the changes in the amount of rainfall sensed by the rain sensor. In the "automatic intermittent" working state, the interval time changes with the changes in the amount of rainfall sensed by the rain sensor.

[0032] Specifically, such as Figure 2As shown, in the embodiment, the setting module includes a plurality of setting switches and a setting signal generating circuit, the setting switches are electrically connected with the setting signal generating circuit, the setting signal generating circuit is connected with the microprocessor, the microprocessor is electrically connected with the rain sensor and the intermittent time output / control interface, the intermittent time output / control interface is electrically connected with the windshield wiper device; the intermittent time output / control interface is used for receiving the intermittent time setting instruction and the intermittent time value sent by the microprocessor, and sending the intermittent time setting instruction and the intermittent time value to the windshield wiper device; the action of the microprocessor after each setting switch in the setting module is triggered is predefined, when the automatic gear of the automobile windshield wiper works in the "automatic intermittent" working state, any setting switch in the setting module is manually triggered, the setting signal generating circuit converts the switch action into a corresponding setting electric signal and sends it to the microprocessor, and the microprocessor controls the automatic gear of the automobile windshield wiper to switch to the "manual intermittent" working state after receiving the setting signal and executes the predefined action when the setting switch is triggered; wherein, the predefined action of the microprocessor after each setting switch is triggered includes but is not limited to: a virtual switch table with a plurality of time values is preset, the corresponding relationship principle between the trigger signal of the setting switch and the virtual switch table is set, the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle after the setting switch is triggered, and the found time value is set as the fixed intermittent time of the "manual intermittent" working state; when the automatic gear of the automobile windshield wiper works in the "manual intermittent" working state, any setting switch in the setting module is manually triggered, the setting signal generating circuit converts the switch action into a corresponding setting electric signal and sends it to the microprocessor, and the microprocessor controls the automatic gear of the automobile windshield wiper to switch to the "automatic intermittent" working state after receiving the setting signal.

[0033] Specifically, in the embodiment, the microprocessor is composed of MCU and corresponding peripheral components to receive, calculate, process and send control instructions and signals; the rain sensor is used for sensing the rain amount information outside the vehicle and sending the real-time rain amount information to the microprocessor in the form of digital (or analog) electric signal; the intermittent time output / control interface receives the intermittent time setting instruction and the intermittent time value sent by the microprocessor, and sends the intermittent time setting instruction and the intermittent time value to the windshield wiper device. The windshield wiper device includes a windshield wiper motor, a speed reduction mechanism, a mechanical execution mechanism (a connecting rod mechanism), a windshield wiper arm / wiper blade mechanism and an electrical driving / control unit, the electrical driving / control unit drives the windshield wiper motor to rotate, the motor rotation drives the mechanical execution mechanism (the connecting rod mechanism) to reciprocate after speed reduction through the speed reduction mechanism, and the windshield wiper device ultimately drives and controls the windshield wiper arm / wiper blade mechanism to reciprocate in the corresponding movement mode set by the microprocessor according to the intermittent time setting instruction and the intermittent time value received by the intermittent time output / control interface.

[0034] For the "manual intermittent" working state, "automatic intermittent" working state, the specific description as follows:

[0035] "Manual intermittent" working state refers to the fixed intermittent time does not change, not with the size of the rain changes. In the "manual intermittent" working state, the microprocessor according to the setting module set fixed intermittent time to intermittent time output / control interface issued setting instructions and fixed intermittent time value, and via intermittent time output / control interface to the wiper device to issue corresponding control signal, through the wiper device in electrical drive / control unit control rain brush to the fixed intermittent time do periodic intermittent water movement. In the "manual intermittent" working state, the microprocessor no longer according to the size of the rain sensor sensing rain changes issued instructions to change the fixed intermittent time.

[0036] "Automatic intermittent" working state refers to the intermittent time changes with the size of the rain sensor sensing rain changes, the corresponding relationship between the size of the rain and the intermittent time is set by the microprocessor in advance. In the "automatic intermittent" working state, the rain sensor senses the size of the rain outside the car and generates corresponding electrical signal, the microprocessor receives the real-time size of the rain sensor issued rain electrical signal, according to the pre-set corresponding relationship between the size of the rain and the intermittent time real-time intermittent time output / control interface issued setting instructions and corresponding real-time intermittent time value, and via intermittent time output / control interface to the wiper device to issue corresponding control signal, through the wiper device in electrical drive / control unit control rain brush to the real-time intermittent time (automatic intermittent time) do periodic intermittent water movement, when the size of the rain changes, automatic intermittent time also changes with it, so as to realize the automatic intermittent time automatic adjustment of the automatic wiper.

[0037] In the prior art, the manual intermittent mode of the automobile wiper is controlled by a controller. In order to adjust the fixed intermittent time, a physical multi-position electric gear shifting switch needs to be configured. The controller sets a fixed intermittent time corresponding to each gear in advance. The driver adjusts the different intermittent times of the "intermittent mode" by manually shifting the gear shifting switch. In the automatic gear intelligent control device of the automobile wiper provided in the embodiment, in the "automatic intermittent" working state, the rain amount sensor senses the rain amount outside the vehicle and generates a corresponding electrical signal. The microprocessor receives the real-time rain amount size electrical signal sent by the rain amount sensor, and according to the pre-set corresponding relationship between the rain amount size and the intermittent time, sends a setting instruction and a corresponding real-time intermittent time value to the intermittent time output / control interface in real time, and sends a corresponding control signal to the wiper device through the intermittent time output / control interface, and controls the wiper through the electrical driving / control unit in the wiper device to make periodic intermittent wiping motion at the real-time intermittent time (automatic intermittent time). When the rain amount size changes, the automatic intermittent time also changes, thereby realizing automatic adjustment of the intermittent time of the automatic gear of the wiper. In the automatic gear intelligent control device of the automobile wiper provided in the embodiment, in the "automatic intermittent" working state, the driver can switch the "automatic intermittent" working state to the "manual intermittent" working state by manually triggering the setting switch in the setting module.

[0038] For presetting a virtual switch table with several time values, the corresponding relationship principle between the trigger signal of the setting switch and the virtual switch table is set, and after the setting switch is triggered, the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle and sets the found time value as the fixed intermittent time of the "manual intermittent" working state. The specific description is as follows: when the microprocessor receives the switching electrical signal sent by the setting module, the microprocessor immediately compares the intermittent time automatically set by the microprocessor in the "automatic intermittent" working state according to the rainfall size sensed by the rainfall sensor at this moment with the several time values in the virtual switch table, finds the time value closest to the automatic intermittent time at this moment from the table by the principle of rounding off, the microprocessor judges which setting switch in the setting module sends the setting signal, finds the corresponding time value required by the setting switch sending the electrical signal from the virtual switch table according to the pre-set corresponding relationship principle between the setting signal of the setting switch and the virtual switch table, and sets the found corresponding time value as the fixed intermittent time. After that, the microprocessor no longer changes the fixed intermittent time according to the change of the rainfall size sensed by the rainfall sensor, the microprocessor sends the setting instruction and the fixed intermittent time value to the intermittent time output / control interface, and sends the corresponding control instruction to the wiper device through the intermittent time output / control interface, controls the wiper to make periodic intermittent wiping motion at the fixed intermittent time through the electrical driving / control unit in the wiper device, so that the wiper automatic gear enters the "manual intermittent" working state.

[0039] In the embodiment, the microprocessor selects the fixed intermittent time value set by the manual setting module from the table, i.e. the fixed intermittent time value of the "manual intermittent" working state of the wiper automatic gear. As can be seen, the virtual switch table plays the role of the physical multi-gear electrical gear switch in the traditional scheme. As can be seen, the intelligent control method and device of the automobile wiper automatic gear proposed in the embodiment realizes that the physical electrical gear switch is not needed, but a virtual electrical gear switch (virtual switch table) is used, with the assistance of the rainfall sensor and the setting module, the driver can "one-key operation" to switch the working state to the "manual intermittent" working state, and accurately set the required fixed intermittent time for the "manual intermittent" working state. By pre-setting the table with different time values, i.e. different virtual switch tables, different virtual electrical gear switches can be obtained, so that the parameters such as the fixed intermittent time adjustment range, resolution and time period allocation can be flexibly modified.

[0040] Similarly, by manually triggering the setting module, the driver can switch the wiper automatic gear from the "manual intermittent" working state to the "automatic intermittent" working state. In the "manual intermittent" working state, when the microprocessor receives the switching electrical signal sent by the setting module, the microprocessor receives the real-time rainfall size electrical signal sent by the rainfall sensor, sends a setting instruction and a corresponding real-time intermittent time value to the intermittent time output / control interface according to the corresponding relationship between the rainfall size and the intermittent time set by the microprocessor in advance, and sends a corresponding control signal to the wiper device through the intermittent time output / control interface, controls the wiper through the electrical driving / control unit in the wiper device to make periodic intermittent wiping motion at the real-time intermittent time (automatic intermittent time), and when the rainfall size changes, the automatic intermittent time also changes, thereby realizing automatic adjustment of the intermittent time of the wiper automatic gear and enabling the wiper automatic gear to enter the "automatic intermittent" working state.

[0041] It should be noted that in the intelligent control method and device for the automatic gear of the automobile wiper proposed in the embodiment, the setting module is composed of setting switches of different types, different numbers, and different combinations thereof, and can realize one-key operation for switching between the "automatic intermittent" working state and the "manual intermittent" working state in the intelligent control of the wiper automatic gear, and set fixed intermittent times with different effects for the "manual intermittent" working state, thereby meeting the user demand and improving the user experience.

[0042] Specifically, in the embodiment, the intelligent control device for the automatic gear of the automobile wiper further includes a function expansion switch; the function expansion switch is connected with the microprocessor and is used for: 1. when the automobile wiper automatic gear works in the "automatic intermittent" working state, if the function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "automatic intermittent" working state, wherein the expansion function includes but is not limited to adjusting the sensitivity of the rainfall sensor in the "automatic intermittent" working state, and different positions of the function expansion switch correspond to different sensitivities of the rainfall sensor; 2. when the automobile wiper automatic gear works in the "manual intermittent" working state, if the function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "manual intermittent" working state, wherein the expansion function includes but is not limited to setting a fixed intermittent time, and different positions of the function expansion switch correspond to different fixed intermittent times.

[0043] Specifically, the intelligent control device for the automatic gear of the automobile wiper further comprises a display module; the display module is connected with the microprocessor and is used for displaying the working state of the automobile wiper under the control of the microprocessor, wherein the working state of the automobile wiper includes but is not limited to whether the automobile wiper is in a "manual intermittent" working state or an "automatic intermittent" working state, the fixed intermittent time in the "manual intermittent" working state, the intermittent time in the "automatic intermittent" working state, the sensitivity of the rain sensor

[0044] The "manual intermittent" working state, the "automatic intermittent" working state and the process of selecting the fixed intermittent time by using the virtual switch table are briefly described below by taking two examples:

[0045] Example 1

[0046] In this example, a virtual 6-gear electric appliance gear shifting switch is set to replace a physical 6-gear electric appliance gear shifting switch, and the physical gear shifting switch is used for manually setting different manual intermittent gear intermittent times by the driver. For the convenience of description, it is assumed that the adjustable full range of the manual intermittent gear intermittent time is 2-12 seconds, and six intermittent time gears are evenly set, and the intermittent times corresponding to the six gear shifting switch gears are respectively: 1st gear-2 seconds, 2nd gear-4 seconds, 3rd gear-6 seconds, 4th gear-8 seconds, 5th gear-10 seconds and 6th gear-12 seconds. The setting switches in the module of the present embodiment include three self-resetting button switches: switch 1, switch 2 and switch 3. When the self-resetting button switch is "lightly pressed", the switch is turned on; when the hand is released, the self-resetting button switch returns to the original position, and the switch is turned off again. The function diagram is as shown in Figure 3 .

[0047] In the present embodiment, the microprocessor sets a virtual switch table with six time values as a virtual 6-gear electric appliance gear shifting switch, which is consistent with the aforementioned physical electric appliance gear shifting switch. In the virtual switch table: 1st gear-2 seconds, 2nd gear-4 seconds, 3rd gear-6 seconds, 4th gear-8 seconds, 5th gear-10 seconds and 6th gear-12 seconds.

[0048] When the three setting switches are triggered, the generated electrical signals are defined as:

[0049] Switch 1 is triggered: it represents that the fixed intermittent time is set to the time value of the previous gear set by switch 2 in the table;

[0050] Switch 2 is triggered: it represents that the fixed intermittent time is set to the time value in the virtual switch table closest to the triggered automatic intermittent time;

[0051] Switch 3 is triggered: it represents that the fixed intermittent time is set to the time value of the next gear set by switch 2 in the table.

[0052] For example:

[0053] Traditional: using manual intermittent file of wiper, for the current amount of rain, 6 seconds is the driver's ideal fixed intermittent time matching the amount of rain, that is, the dial switch is dialled to the 3rd gear, and the wiper is intermittently operated with a fixed intermittent time of 6 seconds.

[0054] Using the intelligent control method of the automatic gear of the automobile wiper proposed in the present application, for the same current amount of rain as above, the process of setting the fixed intermittent time by one-key operation is as follows:

[0055] In the automatic gear working state of the wiper, the corresponding relationship between the preset amount of rain and the intermittent time should be consistent with the expectation of most drivers, for example, for the current amount of rain as above, the automatic intermittent time value set by the microprocessor according to the amount of rain sensed by the rain sensor is 5.8 seconds, the driver hopes that the wiper is intermittently operated with a fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of the three setting switches in the setting module, the microprocessor receives the setting electrical signal sent by the setting module, the automatic gear of the wiper is switched to the "manual intermittent" working state, the microprocessor compares the intermittent time value 5.8 seconds corresponding to the amount of rain sensed by the rain sensor and automatically set by the microprocessor with each time value in the time value table preset in the virtual dial switch, selects the time value in the table by rounding off, and sets the time value as the fixed intermittent time in the "manual intermittent" working state. If the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical dial switch, finds that the 3rd gear 6 seconds is closest to 5.8 seconds, that is, 6 seconds is set as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 6 seconds; if the setting switch 1 is triggered, the microprocessor compares the time value table of the virtual electrical dial switch, that is, the time value 8 seconds of the previous gear of the 3rd gear is set as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 8 seconds; if the setting switch 3 is triggered, the microprocessor compares the time value table of the virtual electrical dial switch, that is, the time value 4 seconds of the next gear of the 3rd gear is set as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 4 seconds.

[0056] For example, for the above-mentioned current rain size, the automatic intermittent time value set by the microprocessor according to the rain size sensed by the rain sensor is 11.8 seconds, and the driver wants the wiper to move intermittently with a fixed intermittent time to wipe water, and the driver immediately sets the fixed intermittent time by manually triggering one of the three setting switches in the setting module, the microprocessor receives the setting electrical signal sent by the setting module, and the automatic gear of the wiper is switched to the "manual intermittent" working state, and the microprocessor compares the corresponding intermittent time value 11.8 seconds set by the microprocessor according to the rain size sensed by the rain sensor at this time and each time value in the time value table preset by the virtual gear shifting switch, selects the time value in the table through rounding off, and sets the time value as the fixed intermittent time of the "manual intermittent" working state. If the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, finds that the 6th grid 12 seconds is closest to 11.8 seconds, i.e., 12 seconds is set as the fixed intermittent time, and controls the wiper device to make the wiper move intermittently with a fixed intermittent time of 12 seconds to wipe water; if the setting switch 1 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, because the sixth grid is the highest grid, so the time value 12 seconds of the 6th grid is still set as the fixed intermittent time, and the wiper device is controlled to make the wiper move intermittently with a fixed intermittent time of 12 seconds to wipe water; if the setting switch 3 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, i.e., the time value 10 seconds of the next grid of the 6th grid is set as the fixed intermittent time, and the wiper device is controlled to make the wiper move intermittently with a fixed intermittent time of 10 seconds to wipe water.

[0057] For example, for the current rainfall size, the automatic intermittent time value set by the microprocessor according to the rainfall size sensed by the rainfall sensor is 2.3 seconds, and the driver wants the wiper to be intermittently operated with a fixed intermittent time. The driver immediately triggers one of the three setting switches in the setting module to set the fixed intermittent time. The microprocessor receives the setting electrical signal sent by the setting module, and the wiper automatic gear is switched to the "manual intermittent" working state. The microprocessor compares the corresponding intermittent time value 2.3 seconds set by the microprocessor automatically according to the rainfall size sensed by the rainfall sensor with each time value in the time value table preset by the virtual gear shifting switch, selects the time value in the table through rounding off, and sets the time value as the fixed intermittent time in the "manual intermittent" working state. If the triggered setting switch is setting switch 2, the microprocessor compares the time value table of the virtual electrical gear shifting switch, finds that the first 2-second time value is closest to 2.3 seconds, sets 2 seconds as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 2 seconds. If the triggered setting switch is setting switch 1, the microprocessor compares the time value table of the virtual electrical gear shifting switch, sets the time value of the previous 4-second time value in the first grid as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 4 seconds. If the triggered setting switch is setting switch 3, the microprocessor compares the time value table of the virtual electrical gear shifting switch, and sets the time value 2 seconds in the first grid as the fixed intermittent time because the first one is the lowest one, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 2 seconds.

[0058] The above control method first selects a time value consistent with the current rainfall size in the whole intermittent time adjustment range with the assistance of the rainfall sensor, and the driver further sets a fixed intermittent time more matched with the personal preference from the three intermittent time values through one-key operation, so that the adjustment range covered by the one-key operation is wider, thereby achieving the purpose of replacing the physical electrical gear shifting switch with the virtual gear shifting switch in the whole fixed intermittent time adjustment range.

[0059] The microprocessor can also display the working state of the wiper automatic gear and the executed fixed intermittent time through the display module, so that the driver can check at any time.

[0060] It is worth mentioning that the microprocessor in the embodiment can also define that the electrical signals generated by the three setting switches in the setting module represent different fixed intermittent time setting schemes, which are illustrated as follows:

[0061] Scheme one: in any rainfall size, triggering the setting switch 2 sets the fixed intermittent time to a specific value, for example, 4 seconds, triggering the setting switch 1 sets it to 2 seconds, and triggering the setting switch 3 sets it to 6 seconds.

[0062] Scheme two, in any rain size, trigger set switch 2, set fixed interval time is a particular value, for example, 4 seconds, trigger set switch 1, set to the longest fixed interval time 12 seconds, trigger set switch 3, set to the shortest fixed interval time 2 seconds. It should be noted that the setting module in this embodiment can have other more implementation, here will not be repeated.

[0063] Wiper automatic in "manual interval" working state, microprocessor control wiper wiper with fixed interval time intermittent movement of water. In the driver wants to brush according to the size of the rain sensor microprocessor automatically adjust the interval time of intermittent movement of water when the driver immediately through the manual trigger setting module in any one of the set switch, the setting module is through the "or" logic circuit to microprocessor sends switching electrical signal to switch the current "manual interval" working state into "automatic interval" working state, complete the switching automatic working in "automatic interval" working state. The setting module in the setting signal generating circuit logic circuit or gate chip model: SN74LVC1G332, as shown in Figure 3 .

[0064] Example two

[0065] The following by example two illustrates the present application by one key operation of the setting module accurate selection and setting of fixed interval time control process.

[0066] In this example, the microprocessor set a virtual 6 gear electric gear switch instead of a physical 6 gear electric gear switch, the physical gear switch for the driver to manually set different manual interval gear interval time use. For the convenience of description, assume that the manual interval gear interval time adjustable full range of 2-12 seconds, 6 interval time evenly set value, 6 gear switch gear corresponding interval time is: 1st gear - 2 seconds, 2nd gear - 4 seconds, 3rd gear - 6 seconds, 4th gear - 8 seconds, 5th gear - 10 seconds, 6th gear - 12 seconds.

[0067] The setting switch in the setting module of this embodiment includes a self reset button switch and a self reset double shift switch, as shown in Figure 4 .

[0068] Self reset button switch 1: button "light press", switch on; hand off, self reset button switch back to the original position, the switch is re disconnected;

[0069] Self-resetting double-position toggle switch 2: toggle the toggle lever from position 0 to the right position 1, the right switch is turned on, the hand is released, the toggle lever returns to the original position 0, and the right switch is turned off again; toggle the toggle lever from position 0 to the left position 2, the left switch is turned on, the hand is released, the toggle lever returns to the original position 0, and the left switch is turned off again.

[0070] In this embodiment, the microprocessor sets a table with 6 time values consistent with the aforementioned physical appliance toggle switch as a virtual 6-position appliance toggle switch. In the time table: 1st position - 2 seconds, 2nd position - 4 seconds, 3rd position - 6 seconds, 4th position - 8 seconds, 5th position - 10 seconds, 6th position - 12 seconds.

[0071] When the three setting switches are triggered, the generated electrical signals are defined as:

[0072] Setting switch 1 is triggered: it represents setting the fixed intermittent time to the time value in the virtual switch table closest to the triggered automatic intermittent time;

[0073] Setting switch 2 position 1 is triggered: it represents setting the fixed intermittent time to the previous position of the time value set by setting switch 1 in the table;

[0074] Setting switch 2 position 2 is triggered: it represents setting the fixed intermittent time to the next position of the time value set by setting switch 1 in the table.

[0075] For example:

[0076] Using the manual wiper intermittent position, for the current rain size, 6 seconds is the ideal fixed intermittent time for the driver to match the rain size, that is, the toggle switch is toggled to the 3rd position, and the wiper wiper is intermittently moved with a fixed intermittent time of 6 seconds.

[0077] Using the automatic position of the present application, for the same current rain size as described above, the process of setting the fixed intermittent time with one-key operation is as follows:

[0078] In the automatic mode of the wiper, the correspondence between the rain amount and the intermittent time set by the microprocessor should be consistent with the expectation of most drivers, for example, for the current rain amount, the automatic intermittent time set by the microprocessor according to the rain amount sensed by the rain sensor is 5.8 seconds, and the driver expects the wiper to be intermittently operated at a fixed intermittent time. The driver immediately sets the fixed intermittent time by manually triggering one of the three setting switches in the setting module, and the microprocessor receives the setting signal from the setting module. The wiper automatically switches to the "manual intermittent" mode, and the microprocessor compares the corresponding intermittent time value 5.8 seconds set by the microprocessor according to the rain amount sensed by the rain sensor with the time value table preset by the virtual gear shift switch, selects the time value in the table by rounding off, and sets the time value as the fixed intermittent time in the "manual intermittent" mode. If the setting switch 1 is triggered, the microprocessor compares the time value table of the virtual electric gear shift switch and finds that the third 6-second time value is closest to 5.8 seconds, i.e., 6 seconds is set as the fixed intermittent time, and the wiper device is controlled to intermittently operate the wiper at a fixed intermittent time of 6 seconds. If the position 1 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electric gear shift switch, i.e., the previous 8-second time value in the third position is set as the fixed intermittent time, and the wiper device is controlled to intermittently operate the wiper at a fixed intermittent time of 8 seconds. If the position 2 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electric gear shift switch, i.e., the next 4-second time value in the third position is set as the fixed intermittent time, and the wiper device is controlled to intermittently operate the wiper at a fixed intermittent time of 4 seconds.

[0079] For example, for the above-mentioned current rain size, according to the automatic intermittent time value 11.8 seconds set by the microprocessor according to the rain size sensed by the rain sensor, the driver wants the wiper to be intermittently operated with a fixed intermittent time to wipe water, the driver immediately sets the fixed intermittent time by manually triggering one of the three setting switches in the setting module, the microprocessor receives the setting electrical signal sent by the setting module, the automatic gear of the wiper is switched to the "manual intermittent" working state, and the microprocessor compares the corresponding intermittent time value 11.8 seconds set by the microprocessor according to the rain size sensed by the rain sensor at this time with each time value in the time value table preset in the virtual gear shifting switch, selects the time value in the table through rounding off, and sets the time value as the fixed intermittent time in the "manual intermittent" working state. If the setting switch 1 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, finds that the 6th 12-second time value is closest to 11.8 seconds, i.e., 12 seconds is set as the fixed intermittent time, and controls the wiper device to make the wiper intermittently operate with a fixed intermittent time of 12 seconds to wipe water; if the position 1 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, because the 6th is the highest one, so the time value 12 seconds in the 6th is still set as the fixed intermittent time, and the wiper device is controlled to make the wiper intermittently operate with a fixed intermittent time of 12 seconds to wipe water; if the position 2 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, i.e., the time value 10 seconds in the next position of the 6th is set as the fixed intermittent time, and the wiper device is controlled to make the wiper intermittently operate with a fixed intermittent time of 10 seconds to wipe water.

[0080] For example, if the current rainfall size is 0.3mm / min, the automatic intermittent time value 2.3 seconds set by the microprocessor according to the rainfall size sensed by the rainfall sensor, the driver wants the wiper to do intermittent motion with a fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of the three setting switches in the setting module, the microprocessor receives the setting electrical signal sent by the setting module, and the wiper automatic gear is switched to the "manual intermittent" working state. The microprocessor compares the corresponding intermittent time value 2.3 seconds set by the microprocessor according to the rainfall size sensed by the rainfall sensor and each time value in the time value table preset by the virtual gear shifting switch, selects the time value in the table through rounding off, and sets the time value as the fixed intermittent time in the "manual intermittent" working state. If the setting switch 1 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, finds that the first 2 seconds is the closest to 2.3 seconds, i.e., 2 seconds is set as the fixed intermittent time, and controls the wiper device to make the wiper do intermittent motion with a fixed intermittent time of 2 seconds; if the position 1 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, i.e., the time value 4 seconds in the first 1 is set as the fixed intermittent time, and controls the wiper device to make the wiper do intermittent motion with a fixed intermittent time of 4 seconds; if the position 2 of the setting switch 2 is triggered, the microprocessor compares the time value table of the virtual electrical gear shifting switch, because the first 1 is the lowest, so the time value 2 seconds in the first 1 is still set as the fixed intermittent time, and controls the wiper device to make the wiper do intermittent motion with a fixed intermittent time of 4 seconds.

[0081] Since the above control method first selects a time value consistent with the current rainfall size in the whole intermittent time adjustment range with the assistance of the rainfall sensor, and the driver further sets a fixed intermittent time more matched with personal preference in the three intermittent time values through one-key operation, the adjustment range covered by one-key operation is wider, so that the purpose of replacing the physical electrical gear shifting switch with the virtual gear shifting switch in the whole fixed intermittent time adjustment range is achieved.

[0082] The microprocessor displays the working state of the wiper automatic gear and the executed fixed intermittent time through the display module, so that the driver can check at any time. It should be noted that the setting module can have other embodiments in this embodiment, which will not be described here.

[0083] The wiper automatic gear is in the "manual intermittent" working state, the microprocessor controls the wiper to make intermittent movement with fixed intermittent time. When the driver wants the wiper to make intermittent movement with intermittent time automatically adjusted by the microprocessor according to the rain amount sensed by the rain amount sensor, the driver immediately sets any one of the setting switches in the setting module by manual triggering, the setting module sends switching electrical signal to the microprocessor through the "or" logic circuit to switch the current "manual intermittent" working state to the "automatic intermittent" working state, and the automatic gear works in the "automatic intermittent" working state after the switching is completed. The chip model of the logic circuit or gate in the setting signal generating circuit in the setting module is SN74LVC1G332, as shown in Figure 4

[0084] Example Three

[0085] The following describes the application of the function expansion switch in the control of the wiper automatic gear of the automobile according to the present application through the third embodiment.

[0086] In addition to the switching and setting of the fixed gap time between the "automatic intermittent" working state and the "manual intermittent" working state completed by the one-key operation setting switch in the setting module, the present embodiment further includes a function expansion switch, Figure 5

[0087] The addition of the function expansion switch in the setting module can further enhance the control ability of the driver on the wiper automatic gear and realize more adjustment functions.

[0088] A 4-gear electric appliance toggle switch is added in the setting module in the present embodiment. The same electric appliance toggle switch is set by the microprocessor to different function switches in different working states of the wiper automatic gear. In the "automatic intermittent" working state, the microprocessor sets the function expansion switch to the "sensitivity adjustment switch": the driver adjusts the function expansion switch by hand to select different gears, and the microprocessor pre-sets the corresponding relationship between different rain amounts and the automatically set intermittent time for different gears of the function expansion switch, in other words, the different gears of the function expansion switch show different sensitivities of the rain amount sensor under the same rain amount, for example: the microprocessor receives the signal of the switch in gear I position, and uses the pre-set relationship between the high-definition sensitivity rain amount and the automatic intermittent time of the microprocessor to set the automatic intermittent time.

[0089] ​​In the "manual intermittent" working state, the microprocessor sets the function expansion switch to the "intermittent time adjustment switch": the driver adjusts the function expansion switch by hand to select different gears, and the microprocessor pre-sets different fixed intermittent times corresponding to different function expansion switch gears, so that in the "manual intermittent" working state, the driver can further adjust the fixed intermittent time according to the needs, for example: the microprocessor receives the signal of the switch in gear I position, that is, the microprocessor resets the fixed intermittent time of the wiper to the intermittent wiping motion of the wiper.

[0090] In all the above embodiments and embodiments, the working state of the automatic gear of the wiper after adjustment is displayed by the display module, so that the driver can check at any time.

[0091] In all the above embodiments and embodiments, the core microprocessor MCU chip in the microprocessor adopts NXP microprocessor MCU S9KEA128P80M48SF0, which is a commonly used microprocessor MCU in automotive electronics, and its main functions are as follows:

[0092] Working range: 1) voltage range: 2.7 to 5.5V, 2) Flash programming, voltage range: 3) temperature range (environment): -40 to 125℃.

[0093] Performance: 1) up to 48MHz Cortex-M0+ core, 2) single-cycle 32-bit x 32-bit multiplier, 3) single-cycle I / O access port.

[0094] Memory and memory interface: 1) up to 128KB Flash, 2) up to 16KB RAM Clock: 1) oscillator (OSC): supports 32.768kHz crystal oscillator or 4MHz to 24MHz crystal oscillator or ceramic resonator; can select low power or high gain oscillator, 2) internal clock source (ICS): internal or external reference clock source and internal FLL composition, wherein the internal 37.5kHz pre-calibration reference clock source can be used for 48MHz system clock, 3) internal 1kHz low power oscillator (LPO).

[0095] System peripherals: 1) power management module (PMC) has three power modes: Run, Wait and Stop, 2) low voltage detection (LVD) module that can be reset, interrupted and with optional jump point, 3) watchdog (WDOG) with independent clock source, 4) configurable cyclic redundancy check (CRC) module, 5) serial wire debug (SWD) interface, 6) SRAM bit operation mapping area (BIT-BAND), 7) bit processing engine (BME).

[0096] Security and integrity module: 1) Each chip has an 80-bit unique identification (ID) number.

[0097] Human machine interface: 1) Up to 71 general purpose input / output (GPIO), 2) Two 32-bit keyboard interrupt (KBI) modules, 3) External interrupt request (IRQ) module.

[0098] Analog module: 1) One 12-bit SAR ADC up to 16 channels, works in Stop mode, optional hardware trigger source (ADC), 2) Two analog comparators (ACMP) with 6-bit DAC and configurable reference input.

[0099] Timer: 1) One 6-channel FlexTimer / PWM (FTM) - two 2-channel FlexTimer / PWM (FTM), 2) One 2-channel periodic interrupt timer (PIT), 3) One pulse width timer (PWT), 4) One real-time clock (RTC).

[0100] Communication interface: 1) Two SPI modules (SPI), 2) Up to three UART modules (UART), 3) Two I2C modules (I2C), 4) One MSCAN module (MSCAN).

[0101] This invention provides a one-button operation that enables both the traditional fixed-interval manual wiper "intermittent" function and the automatic intermittent wiper function, allowing for seamless switching between the two. This avoids the cumbersome operation associated with simultaneously configuring two functions, improves the user experience, ensures safe driving, and reduces the cost of configuring two functions concurrently. Through a one-button operation of the setting switch and the assistance of a rain sensor, this invention not only allows setting a fixed intermittent time in automatic wiper mode but also, with the aid of the rain sensor, allows setting an ideal intermittent time that matches the current rainfall and the driver's preferences. In this invention, with the car wipers in "automatic" mode, the driver can accurately and conveniently switch between "manual intermittent" and "automatic intermittent" modes with a single button operation. This invention utilizes the principle of a rain sensor automatically adjusting the interval time based on the real-time sensing of rainfall outside the vehicle. With the assistance of the rain sensor, a single button operation allows the driver to select and set an ideal fixed interval time that meets their requirements. This fixed interval time is then displayed on a display module for the driver's reference. Conversely, the driver can also return the automatic transmission to "automatic intermittent" mode with a single button operation. This invention eliminates the need for the traditional method of manually selecting a fixed interval time using a physical multi-position electrical toggle switch included in a manual wiper. Instead, it employs a virtual switch table with several time values—a virtual multi-position electrical toggle switch—allowing the driver to precisely select the desired ideal fixed interval time, which is then displayed on the display module.

[0102] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. The scope of protection of the present invention is determined by the scope of the appended claims.

Claims

1. A method for intelligent control of an automatic gear of an automobile wiper, characterized in that, The application relates to a manual trigger setting module which sends a switching signal to a microprocessor, and the microprocessor controls the mutual switching of a "manual intermittent" working state and an "automatic intermittent" working state after receiving the switching signal; wherein the "manual intermittent" working state and the "automatic intermittent" working state are two working states of an automatic gear of an automobile windscreen wiper; in the "manual intermittent" working state, the microprocessor no longer sends an instruction to change a fixed intermittent time according to the size of rainfall sensed by a rainfall sensor; and in the "automatic intermittent" working state, the intermittent time changes with the size of rainfall sensed by the rainfall sensor. The setting module comprises a plurality of setting switches, and the action of the microprocessor after each setting switch is triggered is predefined; when the automatic gear of the automobile windscreen wiper works in the "automatic intermittent" working state, any setting switch in the setting module is manually triggered, and the microprocessor controls the automatic gear of the automobile windscreen wiper to switch to the "manual intermittent" working state and executes the predefined action of the setting switch when the setting switch is triggered; when the automatic gear of the automobile windscreen wiper works in the "manual intermittent" working state, any setting switch in the setting module is manually triggered, and the microprocessor controls the automatic gear of the automobile windscreen wiper to switch to the "automatic intermittent" working state. The predefined action of the microprocessor after each setting switch is triggered specifically comprises: a virtual switch table with a plurality of time values is preset, the corresponding relationship principle between the trigger signal of the setting switch and the virtual switch table is set, the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle after the setting switch is triggered, and the found time value is set as the fixed intermittent time of the "manual intermittent" working state. The microprocessor compares the intermittent time automatically set by the microprocessor in the "automatic intermittent" working state according to the size of rainfall sensed by the rainfall sensor with the plurality of time values in the virtual switch table, and finds the time value closest to the automatic intermittent time at the moment from the virtual switch table by using the rounding principle. When the automatic gear of the automobile windscreen wiper works in the "automatic intermittent" working state, if a function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "automatic intermittent" working state, wherein the expansion function includes but is not limited to adjusting the sensitivity of the rainfall sensor in the "automatic intermittent" working state, and different positions of the function expansion switch correspond to different sensitivities of the rainfall sensor.

2. The method of claim 1, wherein, When the automatic gear of the automobile windscreen wiper works in the "manual intermittent" working state, if a function expansion switch is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "manual intermittent" working state, wherein the expansion function includes but is not limited to setting the fixed intermittent time, and different positions of the function expansion switch correspond to different fixed intermittent times.

3. The method of claim 1, wherein, ​ 4. The method of claim 1, 2 or 3, wherein, The display module displays the working state of the automatic gear of the automobile wiper under the control of a microprocessor, wherein the working state of the automatic gear of the automobile wiper includes but is not limited to whether the automatic gear of the automobile wiper is in a "manual intermittent" working state or an "automatic intermittent" working state, the fixed intermittent time in the "manual intermittent" working state, the intermittent time in the "automatic intermittent" working state, and the sensitivity of a rain sensor.

5. An intelligent control device for an automatic transmission of an automobile wiper based on the intelligent control method of the automatic transmission of an automobile wiper according to claim 1, characterized by, The device comprises a setting module and a microprocessor; the setting module is connected with the microprocessor and is used to send a switching signal to the microprocessor after being triggered manually; the microprocessor is used to control the mutual switching between the "manual intermittent" working state and the "automatic intermittent" working state after receiving the switching signal; wherein the "manual intermittent" working state and the "automatic intermittent" working state are two working states of the automatic gear of the automobile wiper; in the "manual intermittent" working state, the microprocessor no longer sends an instruction to change the fixed intermittent time according to the rain amount sensed by the rain sensor; in the "automatic intermittent" working state, the intermittent time changes with the change of the rain amount sensed by the rain sensor.

6. The automatic gear intelligent control device for automobile wiper according to claim 5, characterized in that, The setting module comprises a plurality of setting switches and a setting signal generating circuit; the setting switches are electrically connected with the setting signal generating circuit; the setting signal generating circuit is connected with the microprocessor; the microprocessor is electrically connected with the rain sensor and an intermittent time output / control interface; the intermittent time output / control interface is electrically connected with the wiper device; the intermittent time output / control interface is used to receive the intermittent time setting instruction and the intermittent time value sent by the microprocessor and send the intermittent time setting instruction and the intermittent time value to the wiper device; the action of the microprocessor after each setting switch in the setting module is triggered is predefined; when the automatic gear of the automobile wiper works in the "automatic intermittent" working state, any setting switch in the setting module is manually triggered; the setting signal generating circuit converts the action of the switch into a corresponding setting electric signal and sends the setting electric signal to the microprocessor; the microprocessor receives the setting signal and controls the automatic gear of the automobile wiper to switch to the "manual intermittent" working state and performs the predefined action of the setting switch when the setting switch is triggered; wherein the predefined action of the microprocessor after each setting switch is triggered includes but is not limited to: a virtual switch table with a plurality of time values is preset; the corresponding relationship principle between the trigger signal of the setting switch and the virtual switch table is set; the microprocessor finds the corresponding time value from the virtual switch table according to the corresponding relationship principle after the setting switch is triggered and sets the found time value as the fixed intermittent time in the "manual intermittent" working state; when the automatic gear of the automobile wiper works in the "manual intermittent" working state, any setting switch in the setting module is manually triggered; the setting signal generating circuit converts the action of the switch into a corresponding setting electric signal and sends the setting electric signal to the microprocessor; the microprocessor receives the setting signal and controls the automatic gear of the automobile wiper to switch to the "automatic intermittent" working state.

7. The automatic gear intelligent control device for automobile wiper according to claim 6, characterized in that, Further comprising a function expansion switch; the function expansion switch is connected with the microprocessor, for:

1. When the automobile wiper automatic gear works in the "automatic intermittent" working state, if it is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "automatic intermittent" working state, wherein the expansion function includes but is not limited to adjusting the sensitivity of the rain sensor in the "automatic intermittent" working state, and the different positions of the function expansion switch correspond to different sensitivities of the rain sensor; 2. When the automobile wiper automatic gear works in the "manual intermittent" working state, if it is manually triggered, the microprocessor executes the expansion function defined by the function expansion switch in the "manual intermittent" working state, wherein the expansion function includes but is not limited to setting a fixed intermittent time, and the different positions of the function expansion switch correspond to different fixed intermittent times.

8. The intelligent control device for automatic transmission of an automobile wiper according to one of claims 5 to 7, characterized in that, Further comprising a display module; the display module is connected with the microprocessor, for displaying the working state of the automobile wiper automatic gear under the control of the microprocessor, wherein the working state of the automobile wiper automatic gear includes but is not limited to whether the automobile wiper automatic gear is in the "manual intermittent" working state or the "automatic intermittent" working state, the fixed intermittent time in the "manual intermittent" working state, the intermittent time in the "automatic intermittent" working state, and the sensitivity of the rain sensor.

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