CN111873943B - Rear wiper control system, rear wiper control method, rear wiper control device and storage medium - Google Patents
Rear wiper control system, rear wiper control method, rear wiper control device and storage medium Download PDFInfo
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- CN111873943B CN111873943B CN202010739432.XA CN202010739432A CN111873943B CN 111873943 B CN111873943 B CN 111873943B CN 202010739432 A CN202010739432 A CN 202010739432A CN 111873943 B CN111873943 B CN 111873943B
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- rear wiper
- wiper
- signal
- driving motor
- position signal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0803—Intermittent control circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0803—Intermittent control circuits
- B60S1/0807—Intermittent control circuits using electronic control means, e.g. tubes, semiconductors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/58—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows
- B60S1/583—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows including wiping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The embodiment of the invention discloses a rear wiper control system, a rear wiper control method, a rear wiper control device and a storage medium. The rear wiper control system comprises a switch module, a controller and a rear wiper driving motor for controlling the rear wiper; the switch module is used for outputting a rear wiper switch signal of the rear wiper and transmitting the rear wiper switch signal to the controller; the controller is used for acquiring a rear wiper position signal output by a position signal output end group of the rear wiper driving motor; the first motor control end and the second motor control end of the controller are respectively electrically connected with the rear wiper driving motor, the controller is used for outputting a rear wiper control signal to the rear wiper driving motor according to a rear wiper switching signal and a rear wiper position signal so as to drive the rear wiper driving motor to work, and the rear wiper driving motor drives the rear wiper to move. The technical scheme of the embodiment of the invention realizes flexible control of the rear windscreen wiper and improves the intelligent degree of the rear windscreen wiper.
Description
Technical Field
The embodiment of the invention relates to the technical field of wiper control, in particular to a rear wiper control system, a rear wiper control method, a rear wiper control device and a storage medium.
Background
With the vigorous development of the automobile industry, various control technologies of automobiles are receiving wide attention. The rear wiper is a wiper of a rear windshield of an automobile, and is generally equipped on SUVs, MPVs, hatchbacks and partial hatchbacks.
At present, the existing rear windscreen wiper is in a mechanical working mode, namely a driving motor rotates 360 degrees after being electrified, and a scraping arm scraping blade is driven by a crank-link mechanism to move repeatedly in a specific area. The existing rear wiper technology does not meet the requirement when different actions are needed at one or several specific positions in the wiping area.
Disclosure of Invention
The embodiment of the invention provides a rear wiper control system, a rear wiper control method, a rear wiper control device and a storage medium, so as to realize flexible control of a rear wiper and improve the intelligent degree of the rear wiper.
In a first aspect, embodiments of the present invention provide a rear wiper control system, which includes a switch module, a controller, and a rear wiper driving motor for controlling a rear wiper;
the switch module is electrically connected with the first input end and the second input end of the controller respectively, and is used for outputting a rear wiper switch signal of the rear wiper and transmitting the rear wiper switch signal to the controller;
the position signal input end group of the controller is electrically connected with the position signal output end group of the rear wiper driving motor, and the controller is used for acquiring a rear wiper position signal output by the position signal output end group of the rear wiper driving motor; the controller is used for outputting a rear wiper control signal to the rear wiper driving motor to drive the rear wiper driving motor to work according to the rear wiper switching signal and the rear wiper position signal, and the rear wiper driving motor drives the rear wiper to move.
Optionally, the rear wiper switch signal includes a rear wiper opening signal and a rear wiper closing signal;
receiving the rear windscreen wiper opening signal and determining that the rear windscreen wiper is in an opening state;
and receiving the rear wiper closing signal and determining that the rear wiper is in a closing state.
Optionally, the controller is further configured to determine rear wiper position information of the rear wiper according to the rear wiper position signal.
Optionally, the position signal input end group of the controller includes a plurality of position signal input ends, the position signal output end group of the rear wiper driving motor includes a plurality of position signal output ends, and the position signal input ends correspond to the position signal outputs one to one.
Optionally, the rear wiper control system further comprises a first relay and a second relay;
the first relay is electrically connected with a first motor control end of the controller and used for controlling the rear wiper driving motor to be communicated with a vehicle power supply according to the rear wiper control signal so as to drive the rear wiper driving motor to rotate forwards;
the second relay is electrically connected with a second motor control end of the controller and used for controlling the rear wiper driving motor to be communicated with a vehicle power supply according to the rear wiper control signal so as to drive the rear wiper driving motor to rotate reversely.
Optionally, the controller is further configured to receive a rear wiper forced closing signal through a rear wiper forced closing end of the controller, so as to control the rear wiper driving motor to stop working.
In a second aspect, an embodiment of the present invention further provides a rear wiper control method, which is applied to the rear wiper control system provided in the first aspect, and the system includes:
acquiring a rear wiper switching signal of a rear wiper output by a switching module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor;
outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal;
and controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
Optionally, outputting a rear wiper control signal according to the rear wiper switching signal and the rear wiper position signal includes:
determining a current rear wiper position matched with the rear wiper position signal from a preset rear wiper position state table based on the rear wiper position signal;
and outputting the rear wiper control signal according to the current front and rear wiper positions and the rear wiper position signal.
In a third aspect, an embodiment of the present invention further provides a rear wiper control device, including:
the signal acquisition module is used for acquiring a rear wiper switch signal of a rear wiper output by the switch module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor;
the signal determining module is used for outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal;
and the rear wiper control module is used for controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the method for controlling a rear wiper according to any one of the embodiments of the present invention.
The rear wiper control system comprises a switch module, a controller and a rear wiper driving motor for controlling a rear wiper; the switch module is electrically connected with the first input end and the second input end of the controller respectively, and is used for outputting a rear wiper switch signal of the rear wiper and transmitting the rear wiper switch signal to the controller; the position signal input end group of the controller is electrically connected with the position signal output end group of the rear wiper driving motor, and the controller is used for acquiring a rear wiper position signal output by the position signal output end group of the rear wiper driving motor; the controller is used for outputting a rear wiper control signal to the rear wiper driving motor to drive the rear wiper driving motor to work according to the rear wiper switching signal and the rear wiper position signal, and the rear wiper driving motor drives the rear wiper to move. The problem of among the prior art unable control back windscreen wiper make different actions in scraping certain or certain several specific position in brushing the region is solved to realize the nimble control to back windscreen wiper, improve the intelligent degree of back windscreen wiper simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a rear wiper control system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rear wiper at different positions on a rear windshield of an automobile according to an embodiment of the present invention;
fig. 3-5 are schematic structural diagrams of the sliding blade on the rear wiper driving motor gear and the corresponding state of the motor port according to the embodiment of the invention;
fig. 6 is a schematic flow chart illustrating a rear wiper control method according to a second embodiment of the present invention;
fig. 7 is a schematic flow chart illustrating a rear wiper control method according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a rear wiper control device according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a schematic structural diagram of a rear wiper control system according to an embodiment of the present invention, which is applicable to a situation where a wiping brush of a rear wiper is flexibly controlled, and the specific structure of the rear wiper control system includes:
a switching module 110, a controller 120, and a rear wiper driving motor 130 for controlling the rear wiper;
the switch module 110 is electrically connected to the first input terminal 21 and the second input terminal 22 of the controller 120, respectively, and the switch module 110 is configured to output a rear wiper switch signal of the rear wiper and transmit the rear wiper switch signal to the controller 120;
the position signal input terminal group of the controller 120 is electrically connected with the position signal output terminal group of the rear wiper driving motor 130, and the controller 120 is configured to obtain a rear wiper position signal output by the position signal output terminal group of the rear wiper driving motor 130; the first motor control end 25 and the second motor control end 26 of the controller 120 are electrically connected to the rear wiper driving motor 130, respectively, and the controller 120 is configured to output a rear wiper control signal to the rear wiper driving motor 130 according to the rear wiper switching signal and the rear wiper position signal to drive the rear wiper driving motor 130 to operate, and the rear wiper driving motor 130 drives the rear wiper to move.
The controller is used for acquiring a rear wiper switch signal output by the switch module and a rear wiper position signal output by the rear wiper driving motor.
The switch module provides the switch operation of various performances for the rear wiper, and the various performances of the rear wiper comprise the functions of opening and closing of the rear wiper, the state (such as continuous operation or intermittent operation) of the rear wiper in the operation process, whether the rear wiper is washed or not, and the like.
On the basis of the above embodiment, the rear wiper switch signal includes a rear wiper on signal and a rear wiper off signal;
receiving the rear windscreen wiper opening signal and determining that the rear windscreen wiper is in an opening state;
and receiving the rear wiper closing signal and determining that the rear wiper is in a closing state.
Wherein, the rear wiper switch signal has a switch module to be inputted to the controller through the first input terminal 21 and the second input terminal 22 of the controller.
The rear wiper opening signal and the rear wiper closing signal can be input by the first input end and the second input end, namely the rear wiper opening signal and the rear wiper closing signal can be input by the first input end, and the rear wiper opening signal and the rear wiper closing signal can be input by the second input end.
For example, referring to fig. 1, the rear wiper on signal is a high level signal, the rear wiper off signal is a low level signal, when the first input terminal 21 inputs a high level signal, it means that the first input terminal inputs the rear wiper on signal, when the first input terminal 21 inputs a low level signal, it means that the first input terminal inputs the rear wiper off signal, when the second input terminal 22 inputs a high level signal, it means that the second input terminal inputs the rear wiper on signal, and when the second input terminal 22 inputs a low level signal, it means that the second input terminal inputs the rear wiper off signal.
It will be appreciated that the vehicle wiper function may include a continuous brushing gear and an intermittent brushing gear, and that the first input 21 and the second input 22 may be used to indicate the continuous brushing gear and the intermittent brushing gear, and, referring to fig. 1, it may be exemplified that the first input 21 is the continuous brushing gear of the rear wiper, and the second input 22 is the intermittent brushing gear of the rear wiper. The embodiment is merely for explanation and is not limited thereto, and similarly, the first input terminal 21 is the intermittent brushing gear of the rear wiper, and the second input terminal 22 is the continuous brushing gear of the rear wiper. The function of the input signal received by the specific input terminal is determined by the built-in function of the switch module, which is not limited in this embodiment.
On the basis of the above embodiment, the controller is further configured to determine rear wiper position information of the rear wiper according to the rear wiper position signal.
The position information of the rear wiper is used for judging the current position of the wiper blade of the rear wiper, for example, when the rear wiper is in the running process, the wiper blade of the rear wiper is at a certain position of the running state of the rear wiper; when the rear wiper is in the parked position, the wiper blade of the rear wiper may not be in contact with the rear windshield of the automobile.
It can be understood that the rear wiper position information may be a stopping position of the rear wiper, that is, a position of the rear wiper before operation, and optionally, the stopping position of the rear wiper is not in direct contact with the rear windshield of the automobile, or may be in contact with the rear windshield of the automobile; the position information of the rear wiper can be the position where the rear wiper is in the initial wiping position, that is, the position where the rear wiper is in direct contact with the rear windshield of the automobile when the rear wiper is about to start to operate, optionally, the initial wiping position of the rear wiper can be a position forming a preset angle with the parking position of the rear wiper, the preset angle can be selected and set by a person skilled in the art according to actual conditions, and the embodiment is only explained; the rear wiper position information may be that the rear wiper is at a maximum wiping angle position, i.e., the farthest position that the rear wiper can reach in the operation process. The present case is through confirming back windscreen wiper position signal, and the current position of back windscreen wiper is judged indirectly, and the back windscreen wiper state is confirmed based on back windscreen wiper current position to realize the operation of further control back windscreen wiper, effectively guarantee back windscreen wiper and the contact of car back windscreen wiper in the operation in-process, reach the purpose of scraping and brushing car back windscreen wiper, simultaneously, extension back windscreen wiper life.
It should be noted that the rear wiper position information may be one or more information, and the parking position, the initial wiping position, and the maximum wiping position mentioned in this embodiment are only examples of different positions of the rear wiper represented by different exemplary positions, and do not set any limit on the possible positions of the rear wiper on the rear window of the automobile.
Fig. 2 is a schematic diagram of different positions of a rear wiper on a rear windshield of an automobile according to an embodiment of the present invention, and referring to fig. 2, three positions of the rear wiper are explained in an exemplary manner, due to the limitation set by the structure of the rear windshield of the automobile, the original position of the rear wiper before the rear wiper is started may not be on the rear windshield of the automobile, that is, the original position of a wiper arm blade of the rear wiper is not on the rear windshield of the automobile, and referring to the parking position in fig. 2, that is, the original position of the rear wiper before the rear wiper is started. When the rear windscreen wiper is started, the rear windscreen wiper moves by a certain angle alpha from a stop position to an initial wiping position, the initial wiping position is the position which ensures that a wiping arm wiping blade of the rear windscreen wiper is completely positioned on a rear windscreen of an automobile, and then the rear windscreen wiper reciprocates on the basis of the initial wiping position and also can reciprocate between the initial wiping position and the maximum wiping position. When the rear windscreen wiper stops running, the rear windscreen wiper is controlled to return to the initial wiping position, then the alpha angle is scraped from the initial wiping position, and the stopping position is reached, namely the rear windscreen wiper stops running.
On the basis of the above embodiment, the position signal input terminal set of the controller 120 includes a plurality of position signal input terminals, and the position signal output terminal set of the rear wiper driving motor 130 includes a plurality of position signal output terminals, and the position signal input terminals are in one-to-one correspondence with the position signal outputs.
With continued reference to fig. 1, taking the example that the position signal input terminal set of the controller includes two position signal input terminals and the position signal output terminal set of the rear wiper driving motor includes two position signal output terminals, the first switch input terminal 23 and the second switch input terminal 24 of the controller 120 are electrically connected to the first position signal output terminal 31 and the second position signal output terminal 32 of the rear wiper driving motor 130, respectively. The controller 120 receives a rear wiper position signal fed back from the rear wiper driving motor 130 through the first switch input terminal 23 and the second switch input terminal 24.
It can be understood that fig. 1 only shows the positions of the three rear wipers as shown in fig. 2 to control the rear wipers to perform corresponding actions, when it is necessary to control more wiping positions of the rear wipers on the rear windshield of the automobile, N (N ≧ 2, and N is a natural number) specific wiping positions are obtained to control, and accordingly, the position signal output terminal group of the rear wiper driving motor 130 includes [ log ]2(N+1)]+1 ([ log ]2(N+1)]+1 is an integer) position signal output terminal.
For example, if 3 specific wiping positions are obtained, the corresponding position signal output terminal group includes 2 position signal output terminals, and if 4 specific wiping positions are obtained, the corresponding position signal output terminal group includes 3 position signal output terminals.
When the controller collects [ log ]2(N+1)]And after the level signal is output by the +1 position signal output end, the current rear wiper position matched with the rear wiper position signal is determined in a preset rear wiper position state table, so that the operation of the rear wiper is further controlled.
With continued reference to fig. 1, based on the above embodiment, the rear wiper control system further includes a first relay 150 and a second relay 160;
the first relay 150 is electrically connected to the first motor control end 25 of the controller 120, and is configured to control the rear wiper driving motor 130 to communicate with a vehicle power supply according to the rear wiper control signal, so as to drive the rear wiper driving motor 130 to rotate forward;
the second relay 160 is electrically connected to the second motor control end 26 of the controller 120, and is configured to control the rear wiper driving motor 130 to communicate with a vehicle power supply according to the rear wiper control signal, so as to drive the rear wiper driving motor 130 to rotate reversely.
The first relay 150 is powered on to control the rear wiper to rotate forward, and the second relay 160 is powered on to control the rear wiper to rotate backward.
The rear wiper control signal is a current target control signal of the rear wiper determined by the controller according to the rear wiper position signal and the rear wiper switch signal, and the rear wiper control signal is used for controlling the rear wiper to realize the forward rotation or reverse rotation operation.
It is understood that the first relay 150 and the second relay 160 are grounded when mounted.
Specifically, a voltage is input to the first relay 150 through the first motor control end 25 of the controller 120, so that the first relay 150 is controlled to be powered on, and the second relay 160 is not powered on, so that the first relay 150 is changed from being grounded to be communicated with the positive electrode of the vehicle power supply, namely, a 12V voltage of the rear wiper driving motor 130 is input, and the rear wiper driving motor 130 is positively conducted, namely, the rear wiper is controlled to be positively rotated. The first relay 150 is controlled to be not electrified and the second relay 160 is controlled to be electrified through the second motor control end 26 of the controller 120 to the second relay 160, so that the second relay 160 is changed from being grounded to be communicated with the positive pole of the vehicle power supply, namely 12V voltage of the rear wiper driving motor 130 is input, and the rear wiper driving motor 130 is negatively conducted, namely the rear wiper is controlled to reversely rotate.
For example, referring to fig. 1, the level signal output by the position signal output terminal group of the rear wiper driving motor 130 collected by the controller 120 is matched with the specific position of the corresponding rear wiper in the preset rear wiper position state table to determine the current position of the rear wiper. Meanwhile, the first relay 150 and the second relay 160 are controlled to be electrified or not by combining the rear wiper switch signal, so that the forward and reverse rotation control of the rear wiper is realized.
Similarly, when the position signal output terminal group of back windscreen wiper driving motor 130 includes a plurality of position signal output terminals, then a plurality of level signals of a plurality of position signal output terminal group outputs are gathered to controller 120, combine back windscreen wiper switching signal, match and predetermine back windscreen wiper position state table and can judge the special position of doctor-bar place, how the arm doctor-bar that scrapes of the windscreen wiper needs back in this special position moves promptly, and then control first relay 150 and second relay 160 circular telegram, just scrape or scrape back with the control back windscreen wiper.
It should be noted that, with continued reference to fig. 1, the rear wiper drive motor 130 further includes a ground line 41.
On the basis of the above embodiment, the controller 120 is further configured to receive a rear wiper forced closing signal through the rear wiper forced closing end 27 of the controller 120 to control the rear wiper driving motor 130 to stop working.
Specifically, the external information of the wiper after forced closing is obtained through the simulation of the forced closing end 27 of the rear wiper, so as to control the rear wiper driving motor 130 to stop working, that is, the rear wiper continues to work after forced stopping.
Optionally, the signal for forcibly closing the rear wiper is a high level signal, which indicates that the rear wiper is forcibly closed; the forced closing signal of the rear wiper is a low level signal, which means that the current situation of the rear wiper is maintained.
The rear wiper control system comprises a switch module, a controller and a rear wiper driving motor for controlling a rear wiper; the switch module is electrically connected with the first input end and the second input end of the controller respectively, and is used for outputting a rear wiper switch signal of the rear wiper and transmitting the rear wiper switch signal to the controller; the position signal input end group of the controller is electrically connected with the position signal output end group of the rear wiper driving motor, and the controller is used for acquiring a rear wiper position signal output by the position signal output end group of the rear wiper driving motor; the controller is used for outputting a rear wiper control signal to the rear wiper driving motor to drive the rear wiper driving motor to work according to the rear wiper switching signal and the rear wiper position signal, and the rear wiper driving motor drives the rear wiper to move. The problem of among the prior art unable control back windscreen wiper make different actions in scraping certain or certain several specific position in brushing the region is solved to realize the nimble control to back windscreen wiper, improve the intelligent degree of back windscreen wiper simultaneously.
With continued reference to fig. 2, the rear wiper structure includes: the scraping device comprises a scraping arm, a scraping blade, a hole protecting ring, a connecting rod structure, a driving motor, a fixed support, a wire harness and a connector. In this embodiment, the operation principle of the subsequent wiper is as follows:
when the rear wiper switch is turned on, the scraping arm scraping blade of the rear wiper is located at a stopping position, the position signal output end group of the rear wiper driving motor feeds back a switch level signal to the controller, the rear wiper driving motor is controlled by the controller to rotate forwards, and the rear wiper driving motor drives the rear wiper to scrape forwards;
when the rear wiper switch is turned on and the wiper arm is in the initial wiping position, the position signal output end group of the rear wiper driving motor feeds back a switch level signal to the controller, the rear wiper driving motor is controlled by the controller to rotate forwards, and the rear wiper driving motor drives the rear wiper to scrape forwards;
when the rear wiper switch is turned on and the wiper blade of the wiper arm is positioned at the maximum wiping angle, the position signal output end group of the rear wiper driving motor feeds back a switch level signal to the controller, the rear wiper driving motor is controlled by the controller to rotate reversely, and the rear wiper driving motor drives the rear wiper to scrape back;
when the rear wiper switch is turned off, and the wiper blade of the wiper arm is positioned at the maximum wiping angle position or the initial wiping position, the position signal output end group of the rear wiper driving motor feeds back a switch level signal to the controller, the rear wiper driving motor is controlled by the controller to rotate reversely, and the rear wiper driving motor drives the rear wiper to scrape back;
when the rear wiper switch is turned off and the wiper blade of the wiper arm is in a stop position, the position signal output end group of the rear wiper driving motor feeds a switch level signal back to the controller to control the rear wiper driving motor to stop working.
Fig. 3-5 are schematic structural diagrams illustrating a sliding piece on a gear of a rear wiper driving motor according to an embodiment of the present invention and a corresponding state of a motor port. With continued reference to fig. 2-5, ground line 111 is illustrated, with the slider shape uniquely designed according to the angles α and β shown in fig. 2 to satisfy the following operating principle:
with continued reference to fig. 2, when the wiper blade is in the parking position, with continued reference to fig. 3, it is ensured that the first position signal output line 113, the second position signal output line 112 and the ground line 111 of the rear wiper driving motor are all in contact with the wiper blade 222, that is, the first position signal output line 113 and the second position signal output line 112 are all in short circuit with the ground line 111, and the first position signal output line 113 and the second position signal output line 112 correspondingly output low level signals;
with continued reference to fig. 2, when the rear wiper driving motor 130 moves by an angle α, that is, the wiper blade of the rear wiper is at the initial wiping position, the speed reduction gear drives the sliding blade to move to the state shown in fig. 4, the first position signal output line 113 and the ground line 111 contact the sliding blade 222, that is, the first position signal output line 113 is a low level signal, the second position signal output line 112 is not on the sliding blade 222, and the second position signal output line 112 is a high level signal;
with continued reference to fig. 2, when the rear wiper driving motor 130 moves by an angle α + β, that is, the wiper blade of the rear wiper is at the maximum wiping angle position, the speed reduction gear drives the sliding blade to move to the state shown in fig. 5, the second position signal output line 112 and the ground line 111 contact the sliding blade 222, that is, the second position signal output line 112 is a low level signal, the first position signal output line 113 is not on the sliding blade 222, and the first position signal output line 113 is a high level signal.
In summary, the rear wiper driving motor 130 includes a first position signal output line 113, a second position signal output line 112 and a ground line 111, the ground line 111 is grounded, and the first position signal output line 113 and the second position signal output line 112 feed back blade position information. The first position signal output line 113 and the second position signal output line 112 are both low level signals, which indicate that the wiper blade of the rear wiper is in the parking position; the first position signal output line 113 is a low level signal, and the second position signal output line 112 is a high level signal, which indicates that the wiper blade of the rear wiper is at the initial wiping position; the first position signal output line 113 is a high level signal, and the second position signal output line 112 is a low level signal, which indicates that the wiper blade of the rear wiper is at the maximum wiping angle position. Further, with continued reference to fig. 1, the rear wiper driving motor 130 is controlled by the controller to rotate forward and backward by the first position signal output terminal 31 and the second position signal output terminal 32 of the rear wiper driving motor 130.
Example two
Fig. 6 is a schematic flow chart of a rear wiper control method according to a second embodiment of the present invention, where the present embodiment is applicable to a situation where a wiping brush of a rear wiper is flexibly controlled, the method is applied to the rear wiper control system according to the second embodiment of the present invention, and the method can be executed by rear wiper control, and the device can be implemented in a form of software and/or hardware. The method specifically comprises the following steps:
s610, acquiring a rear wiper switch signal of a rear wiper output by the switch module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor.
And S620, outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal.
On the basis of the above embodiment, outputting a rear wiper control signal according to the rear wiper switching signal and the rear wiper position signal includes: determining a current rear wiper position matched with the rear wiper position signal from a preset rear wiper position state table based on the rear wiper position signal; and outputting the rear wiper control signal according to the current front and rear wiper positions and the rear wiper position signal.
And S630, controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
According to the technical scheme of the embodiment of the invention, the rear wiper control signal is output according to the rear wiper switch signal and the rear wiper position signal output by the position signal output end group of the rear wiper driving motor by acquiring the rear wiper switch signal of the rear wiper output by the switch module, and the rear wiper driving motor is controlled to drive the rear wiper to move according to the rear wiper control signal. The specific position of the wiper blade of the rear wiper is indicated by coding the high and low level signal combination corresponding to the first position signal output end 31 and the second position signal output end 32 of the rear wiper driving motor; the sliding sheet shape driven by the reduction gear in the rear wiper driving motor is specially designed, so that when the motor rotates at a specific angle, each end of a feedback signal is respectively in short connection with a grounding wire, various arrangement and combination forms of port signals are presented, the port signals are collected by the controller, the power-on condition of the two relays is controlled according to a special strategy, and the rear wiper driving motor is controlled to rotate forwards and backwards.
EXAMPLE III
Fig. 7 is a schematic flow chart of a rear wiper control method according to a third embodiment of the present invention, which is optimized based on the third embodiment. Exemplarily, when the position signal output terminal group of the rear wiper driving motor includes two position signal output terminals, that is, three rear wipers are illustrated as an example in fig. 2.
Correspondingly, the method of the embodiment specifically includes:
and acquiring a rear wiper switching signal output by the switching module, and judging the current switching state of the rear wiper.
And if the front and rear windscreen wipers are in an open state, level signals of the position signal input end group of the controller and the position signal output end group of the rear windscreen wiper driving motor are passed through. If the output end of the first position signal is a low level signal and the output end of the second position signal is a low level signal, the first relay is electrified, and the rear wiper driving motor drives the rear wiper to rotate forwards; if the output end of the first position signal is a low level signal and the output end of the second position signal is a high level signal, the first relay is electrified, and the rear wiper driving motor drives the rear wiper to rotate forwards; if the output end of the first position signal is a high level signal and the output end of the second position signal is a low level signal, the second relay is electrified, and the rear wiper driving motor drives the rear wiper to rotate reversely.
And if the front and rear windscreen wipers are in a closed state, level signals of the position signal input end group of the controller and the position signal output end group of the rear windscreen wiper driving motor are passed through. If the first position signal output end is a high level signal and the second position signal output end is a low level signal, or the first position signal output end is a low level signal and the second position signal output end is a high level signal, the second relay is electrified, and the rear wiper driving motor drives the rear wiper to rotate reversely. If the first position signal output end is a low level signal and the second position signal output end is a low level signal, the first relay and the second relay are electrified, and the rear wiper driving motor stops working.
Example four
Fig. 8 is a schematic structural diagram of a rear wiper control device according to a fourth embodiment of the present invention, which is applicable to a situation where a wiping brush of a rear wiper is flexibly controlled.
As shown in fig. 8, the apparatus includes: a signal acquisition module 810, a signal determination module 820, and a rear wiper control module 830, wherein:
a signal obtaining module 810, configured to obtain a rear wiper switch signal of the rear wiper output by the switch module, and a rear wiper position signal output by a position signal output terminal group of the rear wiper driving motor;
a signal determining module 820, configured to output a rear wiper control signal according to the rear wiper switching signal and the rear wiper position signal;
and a rear wiper control module 830 for controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
The back windscreen wiper control device of this embodiment, through the back windscreen wiper switch signal that acquires the back windscreen wiper of switch module output to and the back windscreen wiper position signal of back windscreen wiper driving motor's position signal output end group output, according to back windscreen wiper switch signal with back windscreen wiper position signal, output back windscreen wiper control signal, control back windscreen wiper driving motor according to back windscreen wiper control signal drive back windscreen wiper motion. The specific position of the wiper blade of the rear wiper is indicated by coding the high and low level signal combination corresponding to the first position signal output end 31 and the second position signal output end 32 of the rear wiper driving motor; the sliding sheet shape driven by the reduction gear in the rear wiper driving motor is specially designed, so that when the motor rotates at a specific angle, each end of a feedback signal is respectively in short connection with a grounding wire, various arrangement and combination forms of port signals are presented, the port signals are collected by the controller, the power-on condition of the two relays is controlled according to a special strategy, and the rear wiper driving motor is controlled to rotate forwards and backwards.
On the basis of the above embodiments, outputting a rear wiper control signal according to the rear wiper switching signal and the rear wiper position signal includes:
determining a current rear wiper position matched with the rear wiper position signal from a preset rear wiper position state table based on the rear wiper position signal;
and outputting the rear wiper control signal according to the current front and rear wiper positions and the rear wiper position signal.
The rear wiper control device provided by each embodiment can execute the rear wiper control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution of the rear wiper control method.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a rear wiper control method, the method including:
acquiring a rear wiper switching signal of a rear wiper output by a switching module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor;
outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal;
and controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
Of course, the embodiment of the present invention provides a storage medium containing computer executable instructions, and the computer executable instructions are not limited to the operations of the method described above, and can also perform related operations in the rear wiper control method provided in any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the rear wiper control device, the included units and modules are only divided according to the functional logic, but not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
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. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A rear wiper control system is characterized by comprising a switch module, a controller and a rear wiper driving motor for controlling a rear wiper;
the switch module is respectively electrically connected with a first input end and a second input end of the controller, the switch module is used for outputting a rear wiper switch signal of the rear wiper and transmitting the rear wiper switch signal to the controller, and the first input end and the second input end of the controller are used for representing a continuous brushing gear and an intermittent brushing gear;
the position signal input end group of the controller is electrically connected with the position signal output end group of the rear wiper driving motor, and the controller is used for acquiring a rear wiper position signal output by the position signal output end group of the rear wiper driving motor; the first motor control end and the second motor control end of the controller are respectively electrically connected with the rear wiper driving motor, the controller is used for outputting a rear wiper control signal to the rear wiper driving motor according to the rear wiper switching signal and the rear wiper position signal so as to drive the rear wiper driving motor to work, and the rear wiper driving motor drives the rear wiper to move;
obtaining N specific wiping positions, the position signal output end group of the rear wiper driving motor comprises [ log ]2(N+1)]+1 of said position signal outputs, whereinN is not less than 4 and is a natural number, [ log ]2(N+1)]+1 is an integer;
the controller collects [ log ]2(N+1)]And after +1 level signals output by the position signal output end, determining the current rear windscreen wiper position matched with the rear windscreen wiper position signals through a preset rear windscreen wiper position state table.
2. The rear wiper control system according to claim 1 wherein the rear wiper switch signal includes a rear wiper on signal and a rear wiper off signal;
receiving the rear windscreen wiper opening signal and determining that the rear windscreen wiper is in an opening state;
and receiving the rear wiper closing signal and determining that the rear wiper is in a closing state.
3. The rear wiper control system according to claim 1 wherein the controller is further configured to determine rear wiper position information for the rear wiper based on the rear wiper position signal.
4. The rear wiper control system according to claim 1 wherein the set of position signal inputs of the controller includes a plurality of position signal inputs and the set of position signal outputs of the rear wiper drive motor includes a plurality of position signal outputs, the position signal inputs corresponding one-to-one to the position signal outputs.
5. The rear wiper control system according to claim 1 further comprising a first relay and a second relay;
the first relay is electrically connected with a first motor control end of the controller and used for controlling the rear wiper driving motor to be communicated with a vehicle power supply according to the rear wiper control signal so as to drive the rear wiper driving motor to rotate forwards;
the second relay is electrically connected with a second motor control end of the controller and used for controlling the rear wiper driving motor to be communicated with a vehicle power supply according to the rear wiper control signal so as to drive the rear wiper driving motor to rotate reversely.
6. The rear wiper control system according to claim 1, wherein the controller is further configured to receive a rear wiper forced close signal through a rear wiper forced close end of the controller to control the rear wiper drive motor to stop operating.
7. A rear wiper control method applied to the rear wiper control system according to any one of claims 1 to 6, comprising:
acquiring a rear wiper switching signal of a rear wiper output by a switching module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor;
outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal;
and controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal.
8. The rear wiper control method according to claim 7, wherein outputting a rear wiper control signal based on the rear wiper switching signal and the rear wiper position signal includes:
determining a current rear wiper position matched with the rear wiper position signal from a preset rear wiper position state table based on the rear wiper position signal;
and outputting the rear wiper control signal according to the current front and rear wiper positions and the rear wiper position signal.
9. A rear wiper control device, comprising:
the signal acquisition module is used for acquiring a rear wiper switch signal of a rear wiper output by the switch module and a rear wiper position signal output by a position signal output end group of a rear wiper driving motor;
the first input end and the second input end of the controller are used for representing a continuous brushing gear and an intermittent brushing gear;
the signal determining module is used for outputting a rear wiper control signal according to the rear wiper switch signal and the rear wiper position signal;
the rear wiper control module is used for controlling the rear wiper driving motor to drive the rear wiper to move according to the rear wiper control signal;
obtaining N specific wiping positions, the position signal output end group of the rear wiper driving motor comprises [ log ]2(N+1)]+1 said position signal output terminals, where N is not less than 4 and is a natural number, [ log ]2(N+1)]+1 is an integer;
the controller collects [ log ]2(N+1)]And after +1 level signals output by the position signal output end, determining the current rear windscreen wiper position matched with the rear windscreen wiper position signals through a preset rear windscreen wiper position state table.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the rear wiper control method according to any one of claims 7-8.
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| CN113978418A (en) * | 2021-09-24 | 2022-01-28 | 合众新能源汽车有限公司 | Comfort adjusting system for rear windscreen wiper |
| CN115230638A (en) * | 2022-07-29 | 2022-10-25 | 中国第一汽车股份有限公司 | Rear windscreen wiper control method and vehicle |
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