CN110712624A

CN110712624A - Intelligent control method and device for automatic gear of automobile windscreen wiper

Info

Publication number: CN110712624A
Application number: CN201911205788.9A
Authority: CN
Inventors: 徐育
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-01-21
Also published as: WO2021104339A1

Abstract

The invention discloses an intelligent control method and device for automatic gears of automobile windscreen wipers, wherein the method comprises the following steps: the manual trigger setting module sends a switching signal to the microprocessor, and the microprocessor controls the switching between the manual intermittent working state and the automatic intermittent working state after receiving the switching signal. The invention realizes the traditional manual wiper 'intermittent gear' function of fixing intermittent time and the automatic sensing wiper function of automatically intermittent time by one-key operation, and the two can realize one-key switching. The invention avoids the defect of complicated operation caused by simultaneously configuring two functions, improves the use experience, ensures safe driving and simultaneously reduces the cost for simultaneously configuring the two functions.

Description

Intelligent control method and device for automatic gear of automobile windscreen wiper

Technical Field

The invention relates to the technical field of automatic control of automobiles, in particular to an intelligent control method and device for an automatic gear of an automobile windscreen wiper.

Background

The windscreen wiper is an indispensable electrical device of the automobile, and a driver of the automobile selects different adjusting gears of the windscreen wiper to enable the windscreen wiper to perform corresponding wiping operation so as to help the driver of the automobile to obtain a better observation visual field when driving in the rain, thereby effectively guaranteeing driving safety.

As is well known, automotive wipers fall into two broad categories: the manual windscreen wiper and the automatic sensing windscreen wiper realize the function of keeping a pause time interval, namely pause time, between two continuous wiping actions of the windscreen wiper. In the 'intermittent gear' working state, the wiper makes periodic movement, each complete wiper movement period comprises two parts of movement time of the wiper in a movement state and intermittent time of the wiper in a pause state, the movement state and the pause state of the wiper are alternately carried out, and the operation is repeated in cycles. In order to set a fixed pause time matched with the rain amount, a manual wiper pause gear is usually selected from a plurality of preset fixed pause time values through a manual shift switch (for example, different pause times within a range of 2-12 seconds are usually adjusted by a plurality of time values in the industry). With the technical development of the windscreen wiper, the automatic sensing windscreen wiper with the automatic intermittent time adjusting function comes along with the production. The automatic induction windscreen wiper can automatically adjust the intermittent time according to the external rainfall sensed by the rainfall sensor: when the rainfall is large, the intermittent time is reduced, when the rainfall is small, the intermittent time is increased, and any manual intervention is not needed. However, the above-described auto-induction wiper blade has the following disadvantages: due to the complexity and unpredictability of the environmental changes outside the vehicle during driving, for example: in addition to the time delay of a mechanical execution mechanism of the windscreen wiper and the individual difference of the preference of a driver on the wiping motion state of the windscreen wiper, some drivers often feel that the wiping motion (for example, the windscreen wiper is started suddenly for several times or stopped suddenly) of the automatic sensing windscreen wiper cannot be completely matched with the expectation of the driver, so that the driver can generate unstable work of the automatic sensing windscreen wiper, and the user experience is influenced.

In summary, on one hand, the stability of the automatic sensing windscreen wiper is poor in the using process, on the other hand, although the intermittent time can be fixed by the manual windscreen wiper in the 'intermittent gear' mode, the movement state of the windscreen wiper cannot be unstable along with the sudden change of the external environment, the defect that manual operation is complex in selecting and setting the intermittent time is obvious, the ideal intermittent time matched with the rainfall size can be accurately selected through manual adjustment, the attention of a driver is certainly dispersed, and potential safety driving hidden dangers are brought.

Furthermore, if it is required to have both the manual intermittent gear and the automatic gear, it is obvious that two gears, namely the manual intermittent gear and the automatic gear, must be configured for the driver to select: the wiper combination switch is shifted to a manual intermittent gear when the fixed intermittent time needs to be manually adjusted; shifting a wiper combined switch to an automatic gear if the intermittent time needs to be automatically adjusted; however, in reality, since the wiper blade having both manual and automatic functions is complicated to operate and the manufacturing cost is increased, the wiper blade of the automobile is generally disposed at present: the windscreen wiper system with the automatic sensing function for automatically adjusting the intermittent time is not provided with the manual intermittent gear function any more, only has one automatic gear and does not have the manual intermittent gear, which means that the automatic gear of the existing automobile automatic sensing windscreen wiper loses the function of manually adjusting the intermittent time by a driver. The conventional practice of configuring only one of the "manual intermittent" function or the "automatic intermittent" function of the wiper blade for the automobile is undoubtedly unfortunate to the automobile driver because different drivers always have different preferences in selecting the function. In the automatic shelves operating condition of present car wiper, though there is sensitivity adjustment switch, supplies the driver to revise the intermittent type time through setting up the different sensitivity of rainfall sensor, can not set up fixed intermittent type time through sensitivity adjustment, promptly: the intermittent time cannot be set to a fixed value irrespective of the magnitude of rainfall, so that the problem that the automatic gear operation often becomes unstable cannot be effectively solved.

Disclosure of Invention

The invention aims to solve the problems mentioned in the background technology section by an intelligent control method and device for an automatic gear of a windscreen wiper of an automobile.

In order to achieve the purpose, the invention adopts the following technical scheme:

an intelligent control method for an automatic gear of an automobile windscreen wiper comprises the following steps: the manual trigger setting module sends a switching signal to the microprocessor, and the microprocessor controls 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor.

Particularly, 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 an 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 be switched to the manual intermittent working state and executes a predefined action 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 be switched to the 'automatic intermittent' working state.

Specifically, the predefining an action of the microprocessor after each setting switch is triggered specifically includes: presetting a virtual switch table with a plurality of time values, setting a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state.

Particularly, when the automatic gear of the automobile windscreen wiper operates in an automatic intermittent working state, if a function expansion switch is triggered manually, a microprocessor executes an expansion function defined by the function expansion switch in the automatic intermittent working state, wherein the expansion function comprises but is not limited to adjusting the sensitivity of a rainfall sensor in the automatic intermittent working state, and the sensitivity of different rainfall sensors corresponds to different triggered gears in the function expansion switch.

Particularly, when the automatic gear of the automobile windscreen wiper operates in a manual intermittence working state, if a function expanding switch is triggered manually, a microprocessor executes an expanding function defined by the function expanding switch in the manual intermittence working state, wherein the expanding function comprises but is not limited to setting of fixed intermittence time, and different gears in the function expanding switch are triggered corresponding to different fixed intermittence time.

Particularly, the display module displays the working state of the automatic gear of the automobile windscreen wiper under the control of the microprocessor, wherein the working state of the automatic gear of the automobile windscreen wiper comprises but is not limited to whether the automatic gear of the automobile windscreen wiper is in a manual intermittent working state or an automatic intermittent working state, fixed intermittent time in the manual intermittent working state, intermittent time in the automatic intermittent working state and sensitivity of a rainfall sensor.

Based on the intelligent control method for the automatic gear of the automobile windscreen wiper, the invention also discloses an intelligent control device for the automatic gear of the automobile windscreen wiper, which comprises a setting module and a microprocessor; the setting module is connected with the microprocessor and used for sending a switching signal to the microprocessor after manually triggering the setting module; the microprocessor is used for controlling the mutual 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor.

Particularly, 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 an electric microprocessor, the microprocessor is electrically connected with a rainfall sensor and an intermittent time output/control interface, and the intermittent time output/control interface is electrically connected with the windscreen wiper device; the intermittent time output/control interface is used for receiving an intermittent time setting instruction and an intermittent time value sent by the microprocessor and sending the intermittent time setting instruction and the intermittent time value to the windscreen wiper device; the method comprises the steps that the action of a microprocessor in a setting module is predefined after each setting switch is triggered, when an automatic gear of the automobile windscreen wiper works in an automatic intermittent working state, any setting switch in the setting module is manually triggered, a 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 controls the automatic gear of the automobile windscreen wiper to be switched to the manual intermittent working state and executes the predefined action when the setting switch is triggered after receiving the setting signal; wherein the predefining 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 a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, any setting switch in the setting module is manually triggered, a setting signal generating circuit converts the switch action into a corresponding setting electric signal and sends the setting electric signal to the microprocessor, and the microprocessor receives the setting signal and then controls the automatic gear of the automobile windscreen wiper to be switched to the automatic intermittent working state.

Particularly, the intelligent control device for the automatic gear of the automobile windscreen wiper further comprises a function expansion switch; the function expansion switch is connected with the microprocessor and used for: when an automatic gear of an automobile windscreen wiper works in an automatic intermittent working state, if the automatic gear is triggered manually, a microprocessor executes an extended function defined by the function extension switch in the automatic intermittent working state, wherein the extended function comprises but is not limited to adjusting the sensitivity of a rainfall sensor in the automatic intermittent working state, and the sensitivities of different rainfall sensors correspond to different triggered gears in the function extension switch; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, if the automatic gear is manually triggered to work, the microprocessor executes an extended function defined by the function extension switch in the manual intermittent working state, wherein the extended function comprises but is not limited to setting of fixed intermittent time, and different gears in the function extension switch are triggered to correspond to different fixed intermittent time.

Particularly, the intelligent control device for the automatic gear of the automobile windscreen wiper further comprises a display module; the display module is connected with the microprocessor and used for displaying the working state of the automatic gear of the automobile windscreen wiper under the control of the microprocessor, wherein the working state of the automatic gear of the automobile windscreen wiper comprises but is not limited to the working state of the automatic gear of the automobile windscreen wiper, the working state of.

Compared with the prior art, the intelligent control method and the intelligent control device for the automatic gear of the automobile windscreen wiper realize the traditional manual windscreen wiper 'intermittent gear' function with fixed intermittent time and the automatic sensing windscreen wiper function with automatic intermittent time through one-key operation, and the two can realize one-key switching. The invention avoids the defect of complicated operation caused by simultaneously configuring two functions, improves the use experience, ensures safe driving and simultaneously reduces the cost for simultaneously configuring the two functions. According to the invention, through one-key operation of the setting switch and the assistance of the rainfall sensor, not only can fixed intermittent time be set in the automatic gear working state of the windscreen wiper, but also ideal intermittent time matched with the current rainfall and the use preference of a driver can be set through the assistance of the rainfall sensor. In the invention, under the working state of an automatic gear, a driver can accurately and conveniently set the windscreen wiper into a manual intermittent working state or an automatic intermittent working state by one-key operation on a switch. The invention utilizes the principle that the rainfall sensor senses the rainfall outside the automobile in real time and automatically adjusts the corresponding intermittent time, can select and set the ideal fixed intermittent time meeting the requirements of the driver by one-key operation with the assistance of the rainfall sensor, and displays the fixed intermittent time through the display module for the inspection of the driver. On the contrary, the driver can realize the automatic gear return to the automatic intermittent working state by one-key operation. The control device of the invention does not need to adopt a multi-gear physical electric appliance shift switch contained in a manual windscreen wiper, and adopts a traditional method of manually and accurately selecting gears to set fixed intermittent time.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent control device for an automatic shift of an automobile wiper according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of a setting module according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an application of a setup module according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an application of a setup module according to an embodiment of the present invention;

fig. 5 is an application schematic diagram of the function expanding switch according to the embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The intelligent control method for the automatic gear of the automobile windscreen wiper in the embodiment comprises the following steps: the manual trigger setting module sends a switching signal to the microprocessor, and the microprocessor controls 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor, and the corresponding relation between the rainfall and the rest time is preset by the microprocessor.

Specifically, in this embodiment, the setting module includes 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 an 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 be switched to the manual intermittent working state and executes a predefined action 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 be switched to the 'automatic intermittent' working state.

Specifically, in this embodiment, the predefining an action of the microprocessor after each setting switch is triggered specifically includes: presetting a virtual switch table with a plurality of time values, setting a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state.

Specifically, in this embodiment, when the automatic gear of the automotive wiper operates in the "automatic intermittent" operating state, if the function extension switch is manually triggered, the microprocessor executes an extension function defined by the function extension switch in the "automatic intermittent" operating state, where the extension function includes, but is not limited to, adjusting the sensitivity of the rain sensor in the "automatic intermittent" operating state, and the sensitivity of the function extension switch corresponds to different rain sensors when different gears are triggered.

Specifically, in this embodiment, when the automatic gear of the automotive wiper operates in the "manual pause" operating state, if the function extension switch is manually triggered, the microprocessor executes an extension function defined by the function extension switch in the "manual pause" operating state, where the extension function includes, but is not limited to, setting a fixed pause time, and different gears in the function extension switch are triggered corresponding to different fixed pause times.

The following describes the intelligent control method for automatic shift of the automobile wiper in detail from the practical application level with reference to the specific embodiment to support the technical idea: the implementation of the intelligent control method for the automatic gear of the automobile windscreen wiper depends on the following intelligent control device for the automatic gear of the automobile windscreen wiper.

As shown in fig. 1, the intelligent control device for an automatic gear of an automobile wiper in the present embodiment specifically includes a setting module and a microprocessor; the setting module is connected with the microprocessor and used for sending a switching signal to the microprocessor after manually triggering the setting module; the microprocessor is used for controlling the mutual 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor.

Specifically, as shown in fig. 2, in this embodiment, the setting module includes a plurality of setting switches and a setting signal generating circuit, the setting switches are electrically connected to the setting signal generating circuit, the setting signal generating circuit is connected to an electrical microprocessor, the microprocessor is electrically connected to a rainfall sensor and an intermittent time output/control interface, and the intermittent time output/control interface is electrically connected to the wiper device; the intermittent time output/control interface is used for receiving an intermittent time setting instruction and an intermittent time value sent by the microprocessor and sending the intermittent time setting instruction and the intermittent time value to the windscreen wiper device; the method comprises the steps that the action of a microprocessor in a setting module is predefined after each setting switch is triggered, when an automatic gear of the automobile windscreen wiper works in an automatic intermittent working state, any setting switch in the setting module is manually triggered, a 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 controls the automatic gear of the automobile windscreen wiper to be switched to the manual intermittent working state and executes the predefined action when the setting switch is triggered after receiving the setting signal; wherein the predefining 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 a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, any setting switch in the setting module is manually triggered, a setting signal generating circuit converts the switch action into a corresponding setting electric signal and sends the setting electric signal to the microprocessor, and the microprocessor receives the setting signal and then controls the automatic gear of the automobile windscreen wiper to be switched to the automatic intermittent working state.

Specifically, in this embodiment, the microprocessor is composed of an MCU and corresponding peripheral components for receiving, computing, processing, and sending control commands and signals; the rainfall sensor is used for sensing rainfall size information outside the vehicle and sending the real-time rainfall size information to the microprocessor in a digital (or analog) electric signal mode; the intermittent time output/control interface receives an intermittent time setting instruction and an intermittent time value sent by the microprocessor and sends the intermittent time setting instruction and the intermittent time value to the windscreen wiper device. The windscreen wiper device comprises a windscreen wiper motor, a speed reducing mechanism, a mechanical actuating mechanism (link mechanism), a windscreen wiper arm/windscreen wiper blade mechanism and an electric driving/controlling unit, wherein the electric driving/controlling unit drives the windscreen wiper motor to rotate, the motor rotates to drive the mechanical actuating mechanism (link mechanism) to reciprocate after being decelerated by the speed reducing mechanism, the windscreen wiper device sets an instruction and an interval time value according to the interval time of a microprocessor received by an interval time output/control interface, and finally the electric driving/controlling unit drives and controls the windscreen wiper arm/windscreen wiper blade mechanism to reciprocate in a corresponding motion mode set by the microprocessor.

The "manual intermittent" operating state and the "automatic intermittent" operating state are specifically described as follows:

the 'manual intermittent' working state means that the intermittent time is fixed and does not change along with the change of the rainfall. In the 'manual intermittent' working state, the microprocessor sends a setting instruction and a fixed intermittent time value to the intermittent time output/control interface according to the fixed intermittent time set by the setting module, sends a corresponding control signal to the windscreen wiper device through the intermittent time output/control interface, and controls the windscreen wiper to do periodical intermittent wiping motion at the fixed intermittent time through the electric driving/control unit in the windscreen wiper device. In the working state of manual intermittence, the microprocessor does not send out an instruction to change the fixed intermittence time according to the change of the rainfall sensed by the rainfall sensor.

The 'automatic intermittent' working state means that the intermittent time changes along with the change of the rainfall sensed by the rainfall sensor, and the corresponding relation between the rainfall and the intermittent time is preset by the microprocessor. In the 'automatic intermittent' working state, the rainfall sensor senses the rainfall outside the vehicle and generates a corresponding electric signal, the microprocessor receives the real-time rainfall magnitude electric 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 in real time according to the preset corresponding relation between the rainfall magnitude and the intermittent time, sends a corresponding control signal to the windscreen wiper device through the intermittent time output/control interface, controls the windscreen wiper to do periodic intermittent wiping motion with the real-time intermittent time (automatic intermittent time) through the electric driving/control unit in the windscreen wiper device, and when the rainfall magnitude changes, the automatic intermittent time also changes along with the change, so that the automatic gear intermittent time automatic adjustment of the windscreen wiper is realized.

In the prior art, the manual intermittent gear work of the automobile windscreen wiper is controlled by a controller, in order to adjust fixed intermittent time, an entity multi-gear electric appliance shifting switch needs to be configured, the controller sets a fixed intermittent time for each gear in advance to correspond to the fixed intermittent time, and a driver manually shifts the shifting switch to realize the adjustment of different intermittent times of 'intermittent gear'. In the intelligent control device for the automatic shift of the automobile windscreen wiper provided by the embodiment, the automatic shift of the windscreen wiper is in an automatic intermittent working state, the rainfall sensor senses the rainfall outside the vehicle and generates corresponding electric signals, the microprocessor receives the real-time rainfall magnitude electric signals sent by the rainfall sensor, sending a setting instruction and a corresponding real-time intermittent time value to an intermittent time output/control interface in real time according to the preset corresponding relation between the rainfall and the intermittent time, and sends a corresponding control signal to the wiper device via the intermittent time output/control interface, the electric driving/controlling unit in the wiper device controls the wiper to do periodical intermittent wiping motion in real-time intermittent time (automatic intermittent time), when the rainfall changes, the automatic intermittent time also changes, so that the automatic adjustment of the automatic gear intermittent time of the windscreen wiper is realized. In the intelligent control device for the automatic gear of the automobile windscreen wiper, provided by the embodiment, the automatic gear of the windscreen wiper is in an automatic intermittent working state, and a driver can switch the automatic intermittent working state into a manual intermittent working state by manually triggering a setting switch in a setting module.

For a virtual switch table with a plurality of preset time values, setting a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as a fixed intermittent time of a manual intermittent working state, which is specifically described as follows: when the microprocessor receives the switching electric signal sent by the setting module, the microprocessor immediately compares the intermittent time automatically set by the microprocessor under the 'automatic intermittent' working state according to the rainfall sensed by the rainfall sensor at the moment with a plurality of time values in the virtual switch table, finds out the time value closest to the automatic intermittent time at the moment from the table by using a rounding principle, judges which setting switch in the setting module specifically sends the setting signal, finds out the time value corresponding to the requirement of the setting switch sending the electric signal from the virtual switch table according to the preset corresponding relation principle between the setting signal of the setting switch and the virtual switch table, sets the found corresponding time value as the fixed intermittent time, and then the microprocessor does not change the fixed intermittent time according to the change of the rainfall sensed by the rainfall sensor any more, the microprocessor sends a setting instruction and the fixed intermittent time value to the intermittent time output/control interface, sends a corresponding control instruction to the windscreen wiper device through the intermittent time output/control interface, and controls the windscreen wiper to do periodic intermittent wiping motion in the fixed intermittent time through an electric driving/control unit in the windscreen wiper device, so that the automatic gear of the windscreen wiper enters a manual intermittent working state.

In the embodiment, a virtual switch table is preset, and the microprocessor selects a fixed intermittent time value set by the manual operation setting module, namely the fixed intermittent time value of the automatic gear manual intermittent working state of the windscreen wiper from the table. Therefore, the virtual switch table can be used as a physical multi-gear electric appliance gear shifting switch in the traditional scheme. Therefore, the intelligent control method and device for automatic gear of the automobile windscreen wiper provided by the embodiment realize that the driver can switch the working state into the manual intermittent working state by one-key operation through the virtual electric appliance gear shifting switch (virtual switch table) without an actual electric appliance gear shifting switch, and with the assistance of the rainfall sensor and the setting module, and accurately set the required fixed intermittent time for the manual intermittent working state. Different virtual electric appliance gear shifting switches can be obtained by presetting tables with different time values, namely different virtual switch tables, so that parameters such as fixed intermittent time adjusting range, resolution and time period distribution can be flexibly modified.

Similarly, the manual trigger setting module can be used for switching the 'manual intermittent' working state of the automatic windscreen wiper into the 'automatic intermittent' working state by a driver. In the 'manual intermittent' working state, after the microprocessor receives the switching electric signal sent by the setting module, the microprocessor receives the real-time rainfall magnitude electric signal sent by the rainfall sensor, sending a setting instruction and a corresponding real-time intermittent time value to an intermittent time output/control interface in real time according to the corresponding relation between the rainfall and the intermittent time preset by the microprocessor, and sends a corresponding control signal to the wiper device via the intermittent time output/control interface, the electric driving/controlling unit in the wiper device controls the wiper to do periodical intermittent wiping motion in real-time intermittent time (automatic intermittent time), when the rainfall changes, the automatic intermittent time also changes, therefore, the automatic interval time of the automatic gear of the windscreen wiper is automatically adjusted, and the automatic gear of the windscreen wiper enters an automatic interval working state.

It should be noted that, in the intelligent control method and device for automatic shift of the vehicle wiper provided by this embodiment, the setting module adopts different types and different numbers of manual electric switches and the setting switches formed by different combinations thereof, so that the mutual switching of one-key operation between the "automatic intermittent" working state and the "manual intermittent" working state in the automatic shift intelligent control of the wiper can be realized, the fixed intermittent time with different effects is set for the "manual intermittent" working state, the user requirements are met, and the user experience is improved.

Specifically, in this embodiment, the intelligent control device for an automatic shift of an automobile windscreen wiper further includes a function extension switch; the function expansion switch is connected with the microprocessor and used for: when an automatic gear of an automobile windscreen wiper works in an automatic intermittent working state, if the automatic gear is triggered manually, a microprocessor executes an extended function defined by the function extension switch in the automatic intermittent working state, wherein the extended function comprises but is not limited to adjusting the sensitivity of a rainfall sensor in the automatic intermittent working state, and the sensitivities of different rainfall sensors correspond to different triggered gears in the function extension switch; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, if the automatic gear is manually triggered to work, the microprocessor executes an extended function defined by the function extension switch in the manual intermittent working state, wherein the extended function comprises but is not limited to setting of fixed intermittent time, and different gears in the function extension switch are triggered to correspond to different fixed intermittent time.

Specifically, in this embodiment, the intelligent control device for an automatic shift of an automobile wiper further includes a display module; the display module is connected with the microprocessor and used for displaying the working state of the automatic gear of the automobile windscreen wiper under the control of the microprocessor, wherein the working state of the automatic gear of the automobile windscreen wiper comprises but is not limited to the working state of the automatic gear of the automobile windscreen wiper 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 the rainfall sensor

The following briefly describes the "manual pause" operating state, the "automatic pause" operating state, and the process of selecting a fixed pause time using a virtual switch table by two examples:

example one

In this example, a virtual 6-gear electric appliance shift switch is provided to replace a physical 6-gear electric appliance shift switch, and the physical shift switch is used for the driver to manually set different manual intermittent time. For convenience of explanation, assuming that the adjustable full range of the intermittent time of the manual intermittent gear is 2-12 seconds, and the values are uniformly set in 6 intermittent time gears, the intermittent time corresponding to the 6 gear shifting switch gears is respectively as follows: gear 1-2 seconds, gear 2-4 seconds, gear 3-6 seconds, gear 4-8 seconds, gear 5-10 seconds, and gear 6-12 seconds. The setting switch in the setting module of this embodiment includes three self-resetting button switches: the switch 1, the switch 2 and the switch 3 are used for pressing the self-reset button switch lightly, and the switch is switched on; after the hand is released, the self-reset button switch returns to the original position, and the switch is disconnected again. The functional schematic of which is shown in figure 3.

In this embodiment, the microprocessor sets a virtual switch table having 6 time values consistent with the aforementioned physical appliance shift switch as a virtual 6-shift appliance shift switch, where: lattice 1-2 seconds, lattice 2-4 seconds, lattice 3-6 seconds, lattice 4-8 seconds, lattice 5-10 seconds, and lattice 6-12 seconds.

When the three setting switches are triggered, the generated electric signals are defined as:

the switch 1 is triggered: representing the previous gear setting the fixed pause time to the time value set by switch 2 in the table;

the switch 2 is triggered: representing the setting of the fixed pause time to the time value in the virtual switch table closest to the triggering of the automatic pause time;

the switch 3 is triggered: representing the next gear in which the fixed pause time is set to the time value set by switch 2 in the table.

For example:

the method comprises the following steps: and (3) using an intermittent gear of a manual windscreen wiper, wherein 6 seconds is the ideal fixed intermittent time matched with the rainfall for the driver for the current rainfall, namely, a gear shifting switch is shifted to a 3 rd gear, and the windscreen wiper performs intermittent motion to wipe water in 6 seconds of fixed intermittent time.

The intelligent control method for the automatic gear of the automobile windscreen wiper provided by the invention has the following steps of setting fixed intermittent time by one-key operation for the same current rainfall:

in the working state of the automatic gear of the windscreen wiper, the preset corresponding relation between the rainfall capacity and the intermittent time is consistent with the expectation of most drivers, for example, for the current rainfall capacity, the automatic intermittent time value set by the microprocessor according to the rainfall capacity sensed by the rainfall sensor is 5.8 seconds, the driver hopes the windscreen wiper to perform intermittent wiping in fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of three setting switches in the setting module, the microprocessor receives a setting electric signal sent by the setting module, the automatic gear of the windscreen wiper is switched into the working state of manual intermittent, the microprocessor automatically sets the corresponding intermittent time value 5.8 seconds according to the rainfall capacity sensed by the rainfall sensor and compares the time value with each time value in a time value table preset by a virtual gear shifting switch, the time value of the table is selected by rounding off and set to a fixed pause time for this "manual pause" operating state. If the setting switch 2 is triggered, the microprocessor compares the virtual appliance toggle switch time value table to find out that the 3 rd 6 second time value is closest to 5.8 seconds, namely, 6 seconds are set as fixed intermittent time, and the wiper device is controlled to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 6 seconds; if the setting switch 1 is triggered, the microprocessor compares the virtual electric appliance with a toggle switch time value table, namely, the time value of the last grid of the 3 rd grid of 8 seconds is set as a fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water within the fixed intermittent time of 8 seconds; if the setting switch 3 is triggered, the microprocessor compares the virtual electric appliance with a toggle switch time value table, namely, the time value 4 seconds of the next grid of the 3 rd grid is set as fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 4 seconds.

For example, for the current rainfall, the automatic intermittent time value set by the microprocessor according to the rainfall sensed by the rainfall sensor is 11.8 seconds, a driver wants the wiper to wipe water in an intermittent motion at a fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of three setting switches in the setting module, the microprocessor receives a setting electric signal sent by the setting module, the automatic gear of the wiper is switched into a manual intermittent working state, the microprocessor automatically sets the corresponding intermittent time value 11.8 seconds according to the rainfall sensed by the rainfall sensor and is compared with each time value in a time value table preset by the virtual gear shifting switch, the time value of the table is selected by rounding off, and the time value is set as the fixed intermittent time of the manual intermittent working state. If the setting switch 2 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table to find out that the 12 second time value in the 6 th grid is closest to 11.8 seconds, namely 12 seconds is set as fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 12 seconds; if the setting switch 1 is triggered, comparing the time value table of the toggle switch of the virtual electric appliance by the microprocessor, setting the time value of the 6 th grid of 12 seconds as the fixed intermittent time because the sixth grid is the highest grid, and controlling the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 12 seconds; if the setting switch 3 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table, namely, the time value of the next grid of the 6 th grid of 10 seconds is set as a fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 10 seconds.

For example, for the current rainfall, the automatic intermittent time value set by the microprocessor according to the rainfall sensed by the rainfall sensor is 2.3 seconds, a driver wants the wiper to wipe water in an intermittent motion at a fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of three setting switches in the setting module, the microprocessor receives a setting electric signal sent by the setting module, the automatic gear of the wiper is switched into a manual intermittent working state, the microprocessor automatically sets the corresponding intermittent time value of 2.3 seconds according to the rainfall sensed by the rainfall sensor and is compared with each time value in a time value table preset by the virtual gear shifting switch, the time value of the table is selected by rounding off, and the time value is set as the fixed intermittent time of the manual intermittent working state. If the setting switch 2 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table to find out that the 1 st grid time value of 2 seconds is closest to 2.3 seconds, namely 2 seconds is set as fixed intermittent time, and controls a wiper device to enable a wiper to perform intermittent motion for wiping water in the fixed intermittent time of 2 seconds; if the setting switch 1 is triggered, the microprocessor compares the virtual electric appliance with a toggle switch time value table, namely, the time value 4 seconds of the last grid of the 1 st grid is set as fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion wiping in the fixed intermittent time of 4 seconds; if the setting switch 3 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table, because the 1 st is the lowest 1, the 1 st time value is set as the fixed intermittent time for 2 seconds, and the wiper device is controlled to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 2 seconds.

According to the control method, a time value which can be consistent with the current rainfall is selected in the whole intermittent time adjusting range through the assistance of the rainfall sensor, and then a driver flexibly sets one of three intermittent time values to be matched with personal preference of the driver through one-key operation, so that the adjusting range covered by one-key operation is wider, and the purpose of replacing an entity electric appliance gear shifting switch with a virtual gear shifting switch in the whole fixed intermittent time adjusting range is achieved.

The microprocessor can also display the working state of the automatic gear of the wiper and the fixed intermittent time of execution through the display module so that a driver can conveniently view the working state and the fixed intermittent time at any time.

It should be noted that, in this embodiment, the microprocessor can further define that the electrical signals generated by the three setting switches in the setting module represent different fixed pause time setting schemes, which are illustrated as follows:

in the first scheme, under the condition of any rainfall amount, the setting switch 2 is triggered, the setting fixed gap time is set to be a specific value, for example, 4 seconds, the setting switch 1 is triggered and set to be 2 seconds, and the setting switch 3 is triggered and set to be 6 seconds.

In the second scheme, in the case of any rainfall, the setting switch 2 is triggered, the setting fixed gap time is set to be a specific value, for example, 4 seconds, the setting switch 1 is triggered, the longest fixed intermittent time is set to be 12 seconds, and the setting switch 3 is triggered, the shortest fixed intermittent time is set to be 2 seconds. It should be noted that the setting module in this embodiment can also have other more embodiments, which are not described herein again.

When the automatic gear of the windscreen wiper is in a manual intermittent working state, the microprocessor controls the windscreen wiper to intermittently wipe water in a fixed intermittent time. When a driver wants the windshield wiper to automatically adjust the intermittent time to perform intermittent movement for wiping water according to the rainfall sensed by the rainfall sensor, the driver immediately triggers any one setting switch in the setting module through manual operation, the setting module sends a switching electric signal to the microprocessor through the OR logic circuit to switch the current manual intermittent working state into the automatic intermittent working state, and the automatic gear works in the automatic intermittent working state after switching is completed. The setting module is used for setting the chip model of a logic circuit or gate in the signal generating circuit: SN74LVC1G332, as shown in FIG. 3.

Example two

The control process of precisely selecting and setting a fixed pause time by one-key operation of the setting module according to the present invention is described below by way of example two.

In this example, the microprocessor sets a virtual 6-gear electrical appliance shift switch to replace an entity 6-gear electrical appliance shift switch, and the entity shift switch is used for the driver to manually set different manual intermittent time. For convenience of explanation, assuming that the adjustable full range of the intermittent time of the manual intermittent gear is 2-12 seconds, and the values are uniformly set in 6 intermittent time gears, the intermittent time corresponding to the 6 gear shifting switch gears is respectively as follows: gear 1-2 seconds, gear 2-4 seconds, gear 3-6 seconds, gear 4-8 seconds, gear 5-10 seconds, and gear 6-12 seconds.

The setting switch in the setting module of this embodiment includes a self-resetting button switch and a self-resetting two-gear toggle switch, as shown in fig. 4.

Self-reset button switch 1: the button is lightly pressed, and the switch is switched on; after the hand is released, the self-reset button switch returns to the original position, and the switch is disconnected again;

the self-reset double-gear toggle switch 2: the shifting lever is shifted from the position 0 to the right position 1, the switch on the right side is switched on, after the hand is released, the shifting lever returns to the original position 0, and the switch on the right side is switched off again; the shifting lever is shifted from the position 0 to the left position 2, the switch on the left side is switched on, after the hand is released, the shifting lever returns to the original position 0, and the switch on the left side is switched off again.

In this embodiment, the microprocessor sets a table having 6 time values consistent with the aforementioned physical appliance shift switch as a virtual 6-gear appliance shift switch, where: lattice 1-2 seconds, lattice 2-4 seconds, lattice 3-6 seconds, lattice 4-8 seconds, lattice 5-10 seconds, and lattice 6-12 seconds.

the setting switch 1 is triggered: representing the setting of the fixed pause time to the time value in the virtual switch table closest to the triggering of the automatic pause time;

position 1 of the setting switch 2 is triggered: representing the previous gear setting the fixed pause time to the time value set by the setting switch 1 in the table;

position 2 of the setting switch 2 triggers: representing the setting of the fixed pause time to the next gear of the time value set in the table by the setting switch 1.

For example:

and (3) using an intermittent gear of a manual windscreen wiper, wherein 6 seconds is the ideal fixed intermittent time matched with the rainfall for the driver for the current rainfall, namely, a gear shifting switch is shifted to a 3 rd gear, and the windscreen wiper performs intermittent motion to wipe water in 6 seconds of fixed intermittent time.

The process of setting the fixed intermittent time by one-key operation for the same current rainfall by using the automatic gear of the invention is as follows:

in the working state of the wiper for removing the automatic gear, the corresponding relation between the rainfall amount preset by the microprocessor and the pause time is consistent with the expectation of most drivers, for example, for the current rainfall amount, the automatic pause time value set by the microprocessor according to the rainfall amount sensed by the rainfall amount sensor is 5.8 seconds, the driver hopes the wiper of the wiper to perform intermittent motion for wiping water in fixed pause time, the driver immediately sets the fixed pause time by manually triggering one of three setting switches in the setting module, the microprocessor receives the setting electric signal sent by the setting module, the automatic gear of the wiper is switched into the 'manual pause' working state, the microprocessor automatically sets the corresponding pause time value 5.8 seconds according to the rainfall amount sensed by the rainfall amount sensor and compares the time values in the time value table preset by the virtual gear shifting switch, the time value of the table is selected by rounding off and set to a fixed pause time for this "manual pause" operating state. If the setting switch 1 is triggered, the microprocessor compares the virtual electric appliance toggle switch time value table to find out that the 3 rd 6 second time value is closest to 5.8 seconds, namely, 6 seconds are set as fixed intermittent time, and the wiper device is controlled to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 6 seconds; if the position 1 of the setting switch 2 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table, namely, the last time value 8 seconds of the 3 rd grid is set as a fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water within the 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 toggle switch of the virtual electric appliance, namely, the time value 4 seconds of the next grid of the 3 rd grid is set as the fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 4 seconds.

For example, for the current rainfall, according to the rainfall sensed by the rainfall sensor, the automatic intermittent time value set by the microprocessor is 11.8 seconds, a driver wants the wiper to wipe water in an intermittent motion at a fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of three setting switches in the setting module, the microprocessor receives a setting electric signal sent by the setting module, the automatic gear of the wiper is switched into a manual intermittent working state, the microprocessor automatically sets the corresponding intermittent time value 11.8 seconds according to the rainfall sensed by the rainfall sensor and automatically compares the time value with each time value in a time value table preset by a virtual gear shifting switch, the time value of the table is selected by rounding off, and the time value is set as the fixed intermittent time of the manual intermittent working state. If the setting switch 1 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table to find out that the 12 second time value in the 6 th grid is 11.8 seconds in the first place, namely 12 seconds is set as fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 12 seconds; if the position 1 of the setting switch 2 is triggered, comparing the time value table of the toggle switch of the virtual electric appliance by the microprocessor, setting the time value 12 seconds of the 6 th grid as the fixed intermittent time because the 6 th grid is the highest one, and controlling the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 12 seconds; if the position 2 of the setting switch 2 is triggered, the microprocessor compares the time value table of the toggle switch of the virtual electric appliance, namely, the time value 10 seconds of the next grid of the 6 th grid is set as the fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent movement for wiping water in the fixed intermittent time of 10 seconds.

For example, for the current rainfall, the automatic intermittent time value 2.3 seconds set by the microprocessor according to the rainfall sensed by the rainfall sensor is required by a driver to intermittently wipe water in fixed intermittent time, the driver immediately sets the fixed intermittent time by manually triggering one of three setting switches in the setting module, the microprocessor receives a setting electric signal sent by the setting module, the automatic gear of the windscreen wiper is switched into a manual intermittent working state, the microprocessor automatically sets the corresponding intermittent time value 2.3 seconds according to the rainfall sensed by the rainfall sensor and automatically compares the time value with each time value in a time value table preset by a virtual gear shifting switch, the time value of the table is selected by rounding off, and the time value is set as the fixed intermittent time of the manual intermittent working state. If the setting switch 1 is triggered, the microprocessor compares the virtual electric appliance toggle switch time value table to find out that the 1 st grid 2 second time value is closest to 2.3 seconds, namely 2 seconds is set as fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 2 seconds; if the position 1 of the setting switch 2 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table, namely, the time value 4 seconds of the last grid of the 1 st grid is set as a fixed intermittent time, and controls the wiper device to enable the wiper to perform intermittent motion for wiping water in the fixed intermittent time of 4 seconds; if the position 2 of the setting switch 2 is triggered, the microprocessor compares the virtual appliance with a toggle switch time value table, because the 1 st grid is the lowest grid, the time value of the 1 st grid for 2 seconds is set as a fixed intermittent time, and the wiper device is controlled to enable the wiper to perform intermittent movement for wiping water in 4 seconds.

The microprocessor displays the working state of the automatic gear of the wiper and the fixed intermittent time of execution through the display module so that a driver can conveniently check the working state and the fixed intermittent time at any time. It should be noted that the setting module in this embodiment can also have other embodiments, which are not described herein again.

When the automatic gear of the windscreen wiper is in a manual intermittent working state, the microprocessor controls the windscreen wiper to intermittently wipe water in a fixed intermittent time. When a driver wants the windshield wiper to automatically adjust the intermittent time to perform intermittent movement for wiping water according to the rainfall sensed by the rainfall sensor, the driver immediately triggers any one setting switch in the setting module through manual operation, the setting module sends a switching electric signal to the microprocessor through the OR logic circuit to switch the current manual intermittent working state into the automatic intermittent working state, and the automatic gear works in the automatic intermittent working state after switching is completed. The setting module is used for setting the chip model of a logic circuit or gate in the signal generating circuit: SN74LVC1G332, as shown in FIG. 4.

Example three

The application of the function extension switch to the control of the automatic range of the wiper blade of the automobile according to the present invention will be described below with reference to a third embodiment.

The present embodiment further includes a function extension switch, as shown in fig. 5, in addition to the setting module switching between the "automatic pause" operating state and the "manual pause" operating state and setting the fixed gap time by including the above one-key operation setting switch.

By adding the function extension switch in the setting module, the control capability of a driver on the automatic gear of the windscreen wiper can be further enhanced, and more adjusting functions are realized.

A4-gear electrical appliance toggle switch and the same electrical appliance toggle switch are added in the setting module of the embodiment, and the microprocessor sets the electrical appliance toggle switch into different functional switches through the microprocessor in different working states of automatic gears of the windscreen wiper. In the "automatic pause" operating state, the microprocessor sets the function expansion switch to the "sensitivity adjustment switch": the driver selects different gears by manually adjusting the function expansion switch, and the microprocessor presets the corresponding relation between different rainfall sizes and the automatically-set intermittent time for different gears of the function expansion switch, in other words, different gears of the function expansion switch show different sensitivities at the same rainfall size, for example: the microprocessor receives a signal of the switch at the position of the gear I, namely the relation between the high-definition sensitivity rainfall and the automatic intermittent time preset by the microprocessor is used for setting the automatic intermittent time.

In the "manual pause" operating state, the microprocessor sets the function expansion switch as a "pause time adjusting switch": the driver selects different gears through manually adjusting the function extension switch, and the microprocessor presets corresponding different fixed intermittent time for different gear positions of the function extension switch, so that in the working state of 'manual intermittent', the driver can further adjust the fixed intermittent time according to the requirement, for example: and the microprocessor receives a signal of the switch at the position of the gear I, namely, the fixed intermittent time preset by the microprocessor is used for resetting the intermittent wiping motion of the wiper of the windscreen wiper.

In all the above embodiments and implementations, the working state of the wiper blade of the present invention after the automatic shift adjustment is completed is displayed by the display module, so that the driver can check the working state at any time.

In all the above embodiments and implementations, the core microprocessor MCU chip in the microprocessor adopts an enwispu (NXP) microprocessor MCU S9KEA128P80M48SF0, and the product is a microprocessor MCU commonly used in automotive electronics, and its main functions are as follows:

the working range is as follows: 1) voltage range: 2.7 to 5.5V, 2) Flash programming, voltage range: 3) temperature range (ambient): -40 to 125 ℃.

Performance: 1) up to 48MHz

Cortex-M0+ kernel, 2) single-cycle 32-bit x 32-bit multiplier, 3) single-cycle I/O access port.

Memory and memory interface: 1) flash of maximum 128KB, 2) RAM clock of maximum 16 KB: 1) oscillator (OSC): supporting a 32.768kHz crystal oscillator or a 4MHz to 24MHz crystal oscillator or a ceramic resonator; selectable low power or high gain oscillators, 2) Internal Clock Source (ICS): an internal or external reference clock source and an internal FLL, where the internal 37.5kHz pre-calibrated reference clock source can be used for the 48MHz system clock, 3) an internal 1kHz Low Power Oscillator (LPO).

System peripheral: 1) the power management module (PMC) has three power modes: run, Wait and Stop, 2) Low Voltage Detection (LVD) module which can reset, interrupt and has selectable jump points, 3) Watchdog (WDOG) with independent clock source, 4) configurable Cyclic Redundancy Check (CRC) module, 5) serial line debugging (SWD) interface, 6) SRAM BIT operation mapping area (BIT-BAND), 7) BIT processing engine (BME).

Security and integrity module: 1) each chip has an 80-bit unique Identification (ID) number.

A human-computer interface: 1) a maximum of 71 general purpose input/output (GPIO), 2) two 32-bit keyboard interrupt (KBI) modules, 3) an external Interrupt (IRQ) module.

A simulation module: 1) a 12-bit SAR ADC up to 16 channels, operable in Stop mode, an optional hardware trigger source (ADC), 2) two Analog Comparators (ACMP) comprising 6-bit DACs and configurable reference inputs.

A timer: 1) a 6-channel FlexTimer/pwm (ftm) -two 2-channel FlexTimer/pwm (ftm), 2) a 2-channel Periodic Interrupt Timer (PIT), 3) a Pulse Width Timer (PWT), 4) a Real Time Clock (RTC).

A communication interface: 1) two SPI modules (SPI), 2) up to three UART modules (UART), 3) two I2C modules (I2C), 4) one MSCAN Module (MSCAN).

The technical scheme of the invention realizes the traditional manual wiper 'intermittent gear' function of fixing intermittent time and the automatic sensing wiper function of automatically intermittent time by one-key operation, and the two can realize one-key switching. The invention avoids the defect of complicated operation caused by simultaneously configuring two functions, improves the use experience, ensures safe driving and simultaneously reduces the cost for simultaneously configuring the two functions. According to the invention, through one-key operation of the setting switch and the assistance of the rainfall sensor, not only can fixed intermittent time be set in the automatic gear working state of the windscreen wiper, but also ideal intermittent time matched with the current rainfall and the use preference of a driver can be set through the assistance of the rainfall sensor. In the invention, under the working state of an automatic gear, a driver can accurately and conveniently set the windscreen wiper into a manual intermittent working state or an automatic intermittent working state by one-key operation on a switch. The invention utilizes the principle that the rainfall sensor senses the rainfall outside the automobile in real time and automatically adjusts the corresponding intermittent time, can select and set the ideal fixed intermittent time meeting the requirements of the driver by one-key operation with the assistance of the rainfall sensor, and displays the fixed intermittent time through the display module for the inspection of the driver. On the contrary, the driver can realize the automatic gear return to the automatic intermittent working state by one-key operation. The control device of the invention does not need to adopt a multi-gear physical electric appliance shift switch contained in a manual windscreen wiper, and adopts a traditional method of manually and accurately selecting gears to set fixed intermittent time.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. The scope of the invention is to be determined by the scope of the appended claims.

Claims

1. An intelligent control method for an automatic gear of an automobile windscreen wiper is characterized by comprising the following steps: the manual trigger setting module sends a switching signal to the microprocessor, and the microprocessor controls 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor.

2. The intelligent control method for the automatic gear of the automobile windscreen wiper as claimed in claim 1, wherein 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 an 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 be switched to the manual intermittent working state and executes a predefined action 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 be switched to the 'automatic intermittent' working state.

3. The intelligent control method for the automatic shift of the automobile windscreen wiper as claimed in claim 2, wherein the action of the microprocessor after each setting switch is triggered is predefined, and the method specifically comprises the following steps: presetting a virtual switch table with a plurality of time values, setting a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state.

4. The intelligent control method for the automatic gear of the automobile windscreen wiper as claimed in claim 1, wherein when the automatic gear of the automobile windscreen wiper is operated in the automatic intermittent operating state, if the function extension switch is manually triggered, the microprocessor executes an extended function defined by the function extension switch in the automatic intermittent operating state, wherein the extended function includes but is not limited to adjusting the sensitivity of the rain sensor in the automatic intermittent operating state, and different positions in the function extension switch are triggered corresponding to different sensitivities of the rain sensor.

5. The intelligent control method of the automatic gear of the automobile windscreen wiper as claimed in claim 1, wherein when the automatic gear of the automobile windscreen wiper is operated in the "manual pause" operating state, if the function extension switch is triggered manually, the microprocessor executes the extended function defined by the function extension switch in the "manual pause" operating state, wherein the extended function includes but is not limited to setting a fixed pause time, and different gears in the function extension switch are triggered corresponding to different fixed pause times.

6. The intelligent control method for the automatic gear of the automobile windscreen wiper as claimed in one of claims 1 to 5, wherein the working state of the automatic gear of the automobile windscreen wiper is displayed by a display module under the control of a microprocessor, wherein the working state of the automatic gear of the automobile windscreen wiper comprises but is not limited to whether the automatic gear of the automobile windscreen wiper is in a manual intermittent working state or an automatic intermittent working state, a fixed intermittent time in the manual intermittent working state, an intermittent time in the automatic intermittent working state and the sensitivity of a rainfall sensor.

7. An intelligent control device for an automatic gear of a vehicle wiper based on the intelligent control method for the automatic gear of the vehicle wiper of claim 1, wherein the device comprises a setting module and a microprocessor; the setting module is connected with the microprocessor and used for sending a switching signal to the microprocessor after manually triggering the setting module; the microprocessor is used for controlling the mutual 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 an automatic gear of the automobile windscreen wiper; in the manual intermittent working state, the microprocessor does not send out an instruction to change the fixed intermittent time according to the rainfall change sensed by the rainfall sensor; the rest time in the 'automatic rest' working state changes along with the change of the rainfall sensed by the rainfall sensor.

8. The intelligent control device for the automatic shift of the automobile windscreen wiper device as recited in claim 7, wherein said setting module comprises a plurality of setting switches and a setting signal generating circuit, said setting switches are electrically connected with the setting signal generating circuit, said setting signal generating circuit is connected with an electric microprocessor, said microprocessor is electrically connected with a rainfall sensor and an intermittent time output/control interface, said intermittent time output/control interface is electrically connected with the windscreen wiper device; the intermittent time output/control interface is used for receiving an intermittent time setting instruction and an intermittent time value sent by the microprocessor and sending the intermittent time setting instruction and the intermittent time value to the windscreen wiper device; the method comprises the steps that the action of a microprocessor in a setting module is predefined after each setting switch is triggered, when an automatic gear of the automobile windscreen wiper works in an automatic intermittent working state, any setting switch in the setting module is manually triggered, a 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 controls the automatic gear of the automobile windscreen wiper to be switched to the manual intermittent working state and executes the predefined action when the setting switch is triggered after receiving the setting signal; wherein the predefining 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 a corresponding relation principle of a trigger signal of a setting switch and the virtual switch table, finding a corresponding time value from the virtual switch table by a microprocessor according to the corresponding relation principle after the setting switch is triggered, and setting the found time value as fixed intermittent time of a manual intermittent working state; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, any setting switch in the setting module is manually triggered, a setting signal generating circuit converts the switch action into a corresponding setting electric signal and sends the setting electric signal to the microprocessor, and the microprocessor receives the setting signal and then controls the automatic gear of the automobile windscreen wiper to be switched to the automatic intermittent working state.

9. The intelligent control device for the automatic shift of the automobile windscreen wiper device as recited in claim 8, further comprising a function expanding switch; the function expansion switch is connected with the microprocessor and used for: when an automatic gear of an automobile windscreen wiper works in an automatic intermittent working state, if the automatic gear is triggered manually, a microprocessor executes an extended function defined by the function extension switch in the automatic intermittent working state, wherein the extended function comprises but is not limited to adjusting the sensitivity of a rainfall sensor in the automatic intermittent working state, and the sensitivities of different rainfall sensors correspond to different triggered gears in the function extension switch; when the automatic gear of the automobile windscreen wiper works in a manual intermittent working state, if the automatic gear is manually triggered to work, the microprocessor executes an extended function defined by the function extension switch in the manual intermittent working state, wherein the extended function comprises but is not limited to setting of fixed intermittent time, and different gears in the function extension switch are triggered to correspond to different fixed intermittent time.

10. The intelligent control device for the automatic shift of the automobile wiper blade as claimed in one of claims 7 to 9, further comprising a display module; the display module is connected with the microprocessor and used for displaying the working state of the automatic gear of the automobile windscreen wiper under the control of the microprocessor, wherein the working state of the automatic gear of the automobile windscreen wiper comprises but is not limited to the working state of the automatic gear of the automobile windscreen wiper, the working state of.