CN106627494B - Dual-motor wiper system and synchronous control method thereof - Google Patents
Dual-motor wiper system and synchronous control method thereof Download PDFInfo
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- CN106627494B CN106627494B CN201710112437.8A CN201710112437A CN106627494B CN 106627494 B CN106627494 B CN 106627494B CN 201710112437 A CN201710112437 A CN 201710112437A CN 106627494 B CN106627494 B CN 106627494B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 24
- 230000009977 dual effect Effects 0.000 claims abstract description 15
- 238000007790 scraping Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Classifications
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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
- B60S1/0814—Wipers or the like, e.g. scrapers characterised by the drive electrically driven using several drive motors; motor synchronisation circuits
Abstract
The invention provides a double-motor wiper system and a synchronous control method thereof. The dual motor wiper system includes: a wiper switch; the vehicle body control module is connected with the wiper switch; the first motor and the second motor are respectively connected with the vehicle body control module; the first wiper arm is electrically connected with the first motor and is arranged on a first front windshield of the automobile; the second wiper arm is electrically connected with the second motor, is arranged on a second front windshield of the automobile, and is arranged side by side with the first front windshield and is spaced by a first preset distance; the first angle sensor is arranged on the first motor and is electrically connected with the vehicle body control module; and the second angle sensor is arranged on the second motor and is electrically connected with the vehicle body control module. The invention can realize synchronous operation of the double wipers, so that the driving vision of a driver is not affected, the driving safety of an automobile is improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a double-motor wiper system and a synchronous control method thereof.
Background
At present, front windshields of some special vehicles are separated from each other, an included angle exists between two front glass blocks, the front windshield is limited by the shape and the structure, and a double motor and two paths of double windshields are generally adopted for cleaning the front windshields. However, due to the difference of motor performances, the problem of asynchronous scraping and brushing often occurs, the visual field of a driver is seriously influenced, and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a double-motor wiper system and a synchronous control method thereof, which are used for solving the problem that in the prior art, when a wiper is driven by double motors, wiping is asynchronous due to the difference of motor performances.
In order to achieve the above object, an embodiment of the present invention provides a dual-motor wiper system, including:
a wiper switch;
the vehicle body control module is connected with the wiper switch;
the first motor and the second motor are respectively connected with the vehicle body control module;
the first wiper arm is electrically connected with the first motor and is arranged on a first front windshield of the automobile;
the second wiper arm is electrically connected with the second motor, is arranged on a second front windshield of the automobile, and is arranged side by side with the first front windshield and is spaced by a first preset distance;
a first angle sensor mounted on the first motor, the first angle sensor being electrically connected with the body control module;
and the second angle sensor is arranged on the second motor and is electrically connected with the vehicle body control module.
The first wiper arm is arranged on the upper frame of the first front windshield frame.
The second wiper arm is arranged on the upper frame of the second front windshield frame and is spaced from the first wiper arm by a second preset distance.
The length of the first wiper arm is equal to that of the second wiper arm.
The size of the first front windshield is equal to that of the second front windshield.
Wherein, still include: and the rainfall sensor is arranged on the first front windshield or the second front windshield and is electrically connected with the vehicle body control module.
The upper frame of the first front windshield frame is provided with a first rotating shaft, and the first rotating shaft is respectively connected with the first wiper arm and the first motor.
The upper frame of the second front windshield frame is provided with a second rotating shaft, and the second rotating shaft is respectively connected with the second wiper arm and the second motor.
The embodiment of the invention also provides a synchronous control method of the double-motor wiper system, which is applied to the double-motor wiper system described in the embodiment, and comprises the following steps:
receiving a first angle signal acquired by a first angle sensor and a second angle signal acquired by a second angle sensor, wherein the first angle signal is a signal for indicating that the rotation angle of a first motor is a first angle, and the second angle signal is a signal for indicating that the rotation angle of a second motor is a second angle;
determining a first time for the first motor to rotate by a first angle and a second time for the second motor to rotate by a second angle according to the first angle signal and the second angle signal;
when the first time is greater than the second time and the difference between the first time and the second time is greater than a preset value, a second rotation stopping control signal is sent to the second motor;
when the first time is smaller than the second time and the difference value between the second time and the first time is larger than the preset value, a first rotation stopping control signal is sent to the first motor;
wherein the method further comprises:
and sending a rotation starting control signal to the first motor or the second motor when the duration of stopping rotation of the first motor or the duration of stopping rotation of the second motor is detected to be longer than a preset time.
Wherein, before the step of receiving the first angle signal collected by the first angle sensor and the second angle signal collected by the second angle sensor, the method further comprises:
detecting whether an ignition switch of an automobile is started or not;
and when the ignition switch of the automobile is started, receiving motor return signals sent by the first motor and the second motor.
Wherein the step of determining a first time for the first motor to rotate by a first angle and a second time for the second motor to rotate by a second angle according to the first angle signal and the second angle signal comprises:
acquiring a first angle of rotation of the first motor and a second angle of rotation of the second motor according to the first angle signal and the second angle signal;
and respectively obtaining a first time used for rotating the first angle of the first motor and a second time used for rotating the second angle of the second motor according to the first angle, the second angle and the rotation angular speed of the first motor and the rotation angular speed of the second motor which are recorded in advance.
Wherein prior to the step of sending a first stop rotation control signal to the first motor, the method further comprises:
transmitting a first control signal for enabling a first wiper arm connected with the first motor in the dual-motor wiper system to return to a first initial position to the first motor;
and receiving a first motor return signal returned by the first motor when the first wiper arm is detected to reach the first initial position.
Wherein prior to the step of sending a second stop rotation control signal to the second motor, the method further comprises:
transmitting a second control signal for enabling a second wiper arm connected with the second motor in the double-motor wiper system to return to a second initial position to the second motor;
and receiving a second motor return signal returned by the second motor when the second wiper arm is detected to reach the second initial position.
The technical scheme of the invention has the following beneficial effects:
according to the scheme, based on the parts and the connection relation in the double-motor wiper system, the basic structure of the double-motor wiper system is provided, and the synchronous control method is combined, so that the synchronous operation of the double-motor wiper is realized, the driving visual field of a driver is not influenced, the driving safety of an automobile is further improved, and the user experience is improved.
Drawings
FIG. 1 is a block diagram of a dual motor wiper system according to an embodiment of the present invention;
FIG. 2 is one of the flowcharts of the synchronous control method of the dual motor wiper system according to the embodiment of the present invention;
FIG. 3 is a flowchart showing step 102 of FIG. 2;
fig. 4 is a second flowchart of a synchronous control method of a dual motor wiper system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
First embodiment
As shown in fig. 1, the present invention discloses a dual-motor wiper system, which is applied to an automobile, and comprises: a wiper switch; the vehicle body control module is connected with the wiper switch; the first motor and the second motor are respectively connected with the vehicle body control module; the first wiper arm is electrically connected with the first motor and is arranged on a first front windshield of the automobile; the second wiper arm is electrically connected with the second motor, is arranged on a second front windshield of the automobile, and is arranged side by side with the first front windshield and is spaced by a first preset distance; the first angle sensor is arranged on the first motor and is electrically connected with the vehicle body control module; and the second angle sensor is arranged on the second motor and is electrically connected with the vehicle body control module.
Here, the body control module controls power supply to the first motor and the second motor through power output.
Here, the second front windshield is disposed side by side with the first front windshield at a first predetermined distance, that is, the second front windshield is disposed side by side with the first front windshield, but is not directly connected as a whole. That is, the structure of the front windshield of the present embodiment is different from that of the front windshields of many conventional automobiles.
Specifically, the first wiper arm is disposed on an upper frame of the first front windshield frame.
Specifically, the second wiper arm is disposed on an upper frame of the second front windshield frame and is spaced from the first wiper arm by a second predetermined distance.
Specifically, the length of the first wiper arm is equal to the length of the second wiper arm.
Specifically, the size of the first front windshield is equal to the size of the second front windshield.
The dual motor wiper system in this embodiment further includes: a rain sensor mounted on the first front windshield or the second front windshield; the rainfall sensor is electrically connected with the vehicle body control module.
The rain sensor can adjust the action of the wiper according to the amount of rain falling on the front windshield, and has an important effect on driving safety.
Specifically, a first rotating shaft is arranged on the upper frame of the first front windshield frame, and the first rotating shaft is respectively connected with the first wiper arm and the first motor.
Here, the motor of the first motor rotates to drive the first rotating shaft to rotate, so that the first wiper arm swings left and right on the first front windshield.
Specifically, a second rotating shaft is arranged on the upper frame of the second front windshield frame, and the second rotating shaft is respectively connected with the second wiper arm and the second motor.
Here, the motor of the second motor rotates to drive the second rotating shaft to rotate, so that the second wiper arm swings left and right on the second front windshield.
Here, on the basis of the present system providing the components and the connection relationship, those skilled in the art may develop related control procedures, so as to solve the problem of unsynchronized operation of the dual wiper.
The embodiment of the invention also provides an automobile, which comprises the double-motor wiper system.
The embodiment of the invention provides a base structure of the double-motor wiper system based on the parts and the connection relation in the double-motor wiper system, and realizes synchronous operation of the double-motor wiper, so that the driving vision of a driver is not influenced, the driving safety of an automobile is further improved, and the user experience is improved.
Second embodiment
As shown in fig. 2, a flowchart of a synchronous control method of a dual-motor wiper system according to an embodiment of the present invention is applied to the dual-motor wiper system described in the above embodiment. The implementation of the synchronization control method is specifically described below with reference to fig. 3 and 4.
It should be noted that, the main execution body of the following method steps is a vehicle body control module in the dual-motor wiper system.
Step 101, receiving a first angle signal acquired by a first angle sensor and a second angle signal acquired by a second angle sensor, wherein the first angle signal is a signal for indicating that the rotation angle of a first motor is a first angle, and the second angle signal is a signal for indicating that the rotation angle of a second motor is a second angle.
Firstly, a vehicle body control module receives a wiper switch starting signal and drives a first motor and a second motor to work in a rotating mode according to the wiper switch starting signal;
here, the wiper switch on signal is used to indicate that the wiper switch is in a closed state. In other words, the first wiper arm and the second wiper arm can start to operate, that is, perform steps in the synchronous control method, when the wiper switch is closed.
Step 102, determining a first time used for rotating the first motor by a first angle and a second time used for rotating the second motor by a second angle according to the first angle signal and the second angle signal.
Here, as shown in fig. 3, the step 102 may further specifically include:
step 1021, obtaining a first angle of rotation of the first motor and a second angle of rotation of the second motor according to the first angle signal and the second angle signal;
here, the first angle is denoted as θ 1 The second angle is denoted as theta 2 。
Step 1022, obtaining a first time for rotating the first motor by the first angle and a second time for rotating the second motor by the second angle according to the first angle, the second angle and the rotation angular velocity of the first motor and the rotation angular velocity of the second motor which are recorded in advance.
The rotational angular velocity ω of the first motor is recorded in advance in the vehicle body control module 1 Rotational angular velocity ω of the second motor 2 According to the formula t=θ/ω, the first time t for the first motor to rotate by the first angle can be calculated 1 And a second time t for the second motor to rotate a second angle 2 。
Step 103, judging whether the first time is greater than the second time.
If yes, go to step 104; otherwise, step 105 is performed.
And 104, when the first time is greater than the second time and the difference between the first time and the second time is greater than a preset value, sending a second rotation stopping control signal to the second motor.
Here, in particular, t 1 ＞t 2 And t 1 -t 2 And (c) transmitting a second rotation stopping control signal to the second motor, wherein ζ is the preset value.
The second rotation stop control signal is used for controlling the second motor to stop rotating.
Here, t 1 ＞t 2 And t 1 -t 2 Zeta is that the second motor rotates faster than the first motor, so that the vehicle body control module controls the second motor to stop rotating temporarily to avoid the asynchronous scraping of the first wiper arm and the second wiper arm.
And step 105, when the first time is smaller than the second time and the difference between the second time and the first time is larger than the preset value, sending a first rotation stopping control signal to the first motor.
Here, in particular, t 2 ＞t 1 And t 2 -t 1 And sending a control signal to the first motor to cause the first motor to stop rotating.
The first rotation stop control signal is used for controlling the first motor to stop rotating.
Similarly, t 2 ＞t 1 And t 2 -t 1 Zeta is more than zeta, which indicates that the first motor rotates faster than the second motor, so that the vehicle body control module controls the first motor to stop rotating temporarily to avoid the asynchronous scraping of the first wiper arm and the second wiper arm.
Specifically, as shown in fig. 4, the synchronous control method of the dual-motor wiper system of the present embodiment may further include:
and step 106, when the duration of stopping rotation of the first motor is detected to be longer than the preset time, a first start rotation control signal is sent to the first motor.
Here, specifically, when the first motor stops rotating, the vehicle body control module detects the duration of the first motor stopping rotating, and when the duration of the first motor stopping rotating is greater than a preset time (the preset time is preferably 1.2ζ in the present embodiment), a first start rotation control signal for causing the first motor to start rotating is transmitted to the first motor.
And step 107, when the duration of stopping rotation of the second motor is detected to be longer than the preset time, a second start rotation control signal is sent to the second motor.
When the second motor stops rotating, the vehicle body controller detects the duration of the second motor stopping rotating, and when the duration of the second motor stopping rotating is greater than a preset time (the preset time is preferably 1.2ζ in the present embodiment), a second start rotation control signal for causing the second motor to start rotating is transmitted to the second motor.
Here, ζ may be understood as a waiting base, and when the duration of stopping the rotation of the first motor is greater than 1.2 ζ, that is, after the first motor stops rotating for a period of time, waiting for the second wiper arm connected to the second motor to return to the return area, and restarting the rotation, so that the wiper synchronization of the first wiper arm and the second wiper arm may be ensured;
similarly, when the duration of stopping the rotation of the second motor is greater than 1.2ζ, that is, after the second motor stops rotating for a period of time, the first wiper arm connected with the first motor waits for returning to the return area, and then starts rotating, so that the synchronous wiping of the first wiper arm and the second wiper arm can be ensured.
Specifically, in step 101 in this embodiment, before receiving the first angle signal acquired by the first angle sensor and the second angle signal acquired by the second angle sensor, the method may further include the following steps:
detecting whether an ignition switch of an automobile is started or not;
and when the ignition switch of the automobile is started, receiving motor return signals sent by the first motor and the second motor.
Here, when the ignition switch of the automobile is started, the vehicle body control module controls the first wiper arm and the second wiper arm to forcibly return to the return areas, and zero initialization of the first angle sensor and the second angle sensor is performed. Therefore, the first motor and the second motor can be prevented from being greatly different in the first rotation, so that the following synchronous adjustment of the wiper arms can not be achieved quickly, and the driving vision of a driver is influenced.
Specifically, in this embodiment, before the first rotation stopping control signal is sent to the first motor in step 103, the method may further include the following steps:
transmitting a first control signal for enabling a first wiper arm connected with the first motor in the dual-motor wiper system to return to a first initial position to the first motor;
and receiving a first motor return signal returned by the first motor when the first wiper arm is detected to reach the first initial position.
Like this, when the first motor is stopping rotatory, first wiper arm is located first initial position, and return region promptly, and when the follow-up first motor of being convenient for is rotatory again, first wiper arm all is in return region with the second wiper arm, realizes the brush synchronization of first wiper arm and second wiper arm brush.
Specifically, in this embodiment, before the second rotation stopping control signal is sent to the second motor in step 104, the method may further include the following steps:
transmitting a second control signal for enabling a second wiper arm connected with the second motor in the double-motor wiper system to return to a second initial position to the second motor;
and receiving a second motor return signal returned by the second motor when the second wiper arm is detected to reach the second initial position.
Like this, when the second motor is stopping rotatory, second wiper arm is located the second initial position, and return region promptly, and when the follow-up second motor of being convenient for is rotatory again, first wiper arm all is in return region with the second wiper arm, realizes the brush synchronization of first wiper arm and second wiper arm brush.
Here, when the dual-motor wiper system includes the rain sensor mounted on the first front windshield or the second front windshield, the rotation frequency of the motor can be adjusted by the corresponding relationship among the rain amount, the vehicle speed and the waiting base ζ, so as to more finely realize the synchronous operation of the dual-motor wiper.
According to the base structure of the dual-motor wiper system, based on the component providing and connection relation of the dual-motor wiper system, according to the first angle signal collected by the first angle sensor and the second angle signal collected by the second angle sensor, when the first wiper arm and the second wiper arm are not synchronous, the first motor or the second motor receives corresponding control signals to realize synchronous operation of the dual-motor wiper, so that driving vision of a driver is not affected, safety of automobile driving is further improved, and user experience is improved.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (13)
1. A dual motor wiper system, comprising:
a wiper switch;
the vehicle body control module is connected with the wiper switch;
the first motor and the second motor are respectively connected with the vehicle body control module;
the first wiper arm is electrically connected with the first motor and is arranged on a first front windshield of the automobile;
the second wiper arm is electrically connected with the second motor, is arranged on a second front windshield of the automobile, and is arranged side by side with the first front windshield and is spaced by a first preset distance;
a first angle sensor mounted on the first motor, the first angle sensor being electrically connected with the body control module;
a second angle sensor mounted on the second motor, the second angle sensor being electrically connected with the body control module; receiving a first angle signal acquired by a first angle sensor and a second angle signal acquired by a second angle sensor, wherein the first angle signal is a signal for indicating that the rotation angle of a first motor is a first angle, and the second angle signal is a signal for indicating that the rotation angle of a second motor is a second angle;
determining a first time for the first motor to rotate by a first angle and a second time for the second motor to rotate by a second angle according to the first angle signal and the second angle signal; judging whether the first time is longer than the second time or not, and sending a first rotation stopping control signal or a second rotation stopping control signal to the first motor or the second motor, wherein a first angle of rotation of the first motor and a second angle of rotation of the second motor are obtained according to the first angle signal and the second angle signal;
obtaining a first time for rotating the first motor by the first angle and a second time for rotating the second motor by the second angle according to the first angle, the second angle and a pre-recorded rotation angular speed of the first motor and rotation angular speed of the second motor; when the first time is greater than the second time and the difference between the first time and the second time is greater than a preset value, a second rotation stopping control signal is sent to the second motor; and when the first time is smaller than the second time and the difference value between the second time and the first time is larger than the preset value, sending a first rotation stopping control signal to the first motor.
2. The dual motor wiper system as set forth in claim 1 wherein the first wiper arm is disposed on an upper rim of the first front windshield frame.
3. The dual motor wiper system as set forth in claim 2 wherein the second wiper arm is disposed at an upper rim of the second front windshield frame and spaced a second predetermined distance from the first wiper arm.
4. The dual motor wiper system as set forth in claim 1 wherein the length of the first wiper arm is equal to the length of the second wiper arm.
5. The dual motor wiper system as set forth in claim 1 wherein the first front windshield is of equal size as the second front windshield.
6. The dual motor wiper system as set forth in claim 1 further comprising: and the rainfall sensor is arranged on the first front windshield or the second front windshield and is electrically connected with the vehicle body control module.
7. The dual motor wiper system according to claim 2, wherein a first rotating shaft is provided on an upper rim of the first front windshield frame, and the first rotating shaft is connected to the first wiper arm and the first motor, respectively.
8. A dual motor wiper system according to claim 3, wherein a second rotating shaft is provided on an upper rim of the second front windshield frame, the second rotating shaft being connected to the second wiper arm and the second motor, respectively.
9. A synchronous control method of a dual-motor wiper system, applied to the dual-motor wiper system as claimed in any one of claims 1 to 8, comprising:
receiving a first angle signal acquired by a first angle sensor and a second angle signal acquired by a second angle sensor, wherein the first angle signal is a signal for indicating that the rotation angle of a first motor is a first angle, and the second angle signal is a signal for indicating that the rotation angle of a second motor is a second angle;
determining a first time for the first motor to rotate by a first angle and a second time for the second motor to rotate by a second angle according to the first angle signal and the second angle signal;
when the first time is greater than the second time and the difference between the first time and the second time is greater than a preset value, a second rotation stopping control signal is sent to the second motor;
and when the first time is smaller than the second time and the difference value between the second time and the first time is larger than the preset value, sending a first rotation stopping control signal to the first motor.
10. The method for synchronous control of a dual motor wiper system according to claim 9, further comprising:
and sending a rotation starting control signal to the first motor or the second motor when the duration of stopping rotation of the first motor or the duration of stopping rotation of the second motor is detected to be longer than a preset time.
11. The method of claim 9, wherein prior to the step of receiving the first angle signal collected by the first angle sensor and the second angle signal collected by the second angle sensor, the method further comprises:
detecting whether an ignition switch of an automobile is started or not;
and when the ignition switch of the automobile is started, receiving motor return signals sent by the first motor and the second motor.
12. The method of synchronous control of a two-motor wiper system according to claim 9, wherein before the step of transmitting a first stop rotation control signal to the first motor, the method further comprises:
transmitting a first control signal for enabling a first wiper arm connected with the first motor in the dual-motor wiper system to return to a first initial position to the first motor;
and receiving a first motor return signal returned by the first motor when the first wiper arm is detected to reach the first initial position.
13. The method of synchronous control of a two-motor wiper system according to claim 9, wherein before the step of transmitting a second stop rotation control signal to the second motor, the method further comprises:
transmitting a second control signal for enabling a second wiper arm connected with the second motor in the double-motor wiper system to return to a second initial position to the second motor;
and receiving a second motor return signal returned by the second motor when the second wiper arm is detected to reach the second initial position.
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| CN201710112437.8A CN106627494B (en) | 2017-02-28 | 2017-02-28 | Dual-motor wiper system and synchronous control method thereof |
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| CN201710112437.8A CN106627494B (en) | 2017-02-28 | 2017-02-28 | Dual-motor wiper system and synchronous control method thereof |
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| CN111873943B (en) * | 2020-07-28 | 2022-02-01 | 中国第一汽车股份有限公司 | Rear wiper control system, rear wiper control method, rear wiper control device and storage medium |
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| CN106132787A (en) * | 2014-03-27 | 2016-11-16 | 株式会社美姿把 | Wiper system control method and wiper system control device |
| CN204674543U (en) * | 2015-06-30 | 2015-09-30 | 西安工程大学 | A kind of windscreen wiper synchronous control system |
| CN206579605U (en) * | 2017-02-28 | 2017-10-24 | 北京汽车研究总院有限公司 | A kind of bi-motor windscreen wiper system and automobile |
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