CN109624928B - Water spraying control method and water spraying control system of water spraying windscreen wiper - Google Patents

Water spraying control method and water spraying control system of water spraying windscreen wiper Download PDF

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Publication number
CN109624928B
CN109624928B CN201910012034.5A CN201910012034A CN109624928B CN 109624928 B CN109624928 B CN 109624928B CN 201910012034 A CN201910012034 A CN 201910012034A CN 109624928 B CN109624928 B CN 109624928B
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China
Prior art keywords
water
wiper
contact
pump
guide rail
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Application number
CN201910012034.5A
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Chinese (zh)
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CN109624928A (en
Inventor
龙小军
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Chengdu Huachuan Electric Parts Co Ltd
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Chengdu Huachuan Electric Parts Co Ltd
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Priority to CN201910012034.5A priority Critical patent/CN109624928B/en
Publication of CN109624928A publication Critical patent/CN109624928A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/06Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0803Intermittent control circuits
    • B60S1/0807Intermittent control circuits using electronic control means, e.g. tubes, semiconductors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/46Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48Liquid supply therefor
    • B60S1/481Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • B60S1/482Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers
    • B60S1/483Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers using a supply pump driven by the windscreen-wiper motor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The invention discloses a water spraying control method of a water spraying windscreen wiper, which comprises the following steps: electrifying a wiper motor to drive the water spraying wiper to move and switch on and off a water pump switch system; when the wiper motor drives the water spraying wiper to run upwards, the water pump switch system conducts the upper water spraying pump, the upper water spraying pump starts to work, and the cleaning water is driven to spray above the water spraying wiper; when the wiper motor drives the water spraying wiper to run downwards, the water pump switch system conducts the lower water spraying pump, and the lower water spraying pump starts to work to drive the cleaning water to spray to the lower side of the water spraying wiper. According to the invention, the movement of the water spraying wiper can be combined with water spraying, so that when the water spraying wiper runs upwards, the water spraying head sprays water to the upper side of the wiper, and when the water spraying wiper runs downwards, the water spraying head sprays water to the lower side of the wiper, thereby saving cleaning water, enhancing the uniformity of water spraying and improving the cleaning effect.

Description

Water spraying control method and water spraying control system of water spraying windscreen wiper
Technical Field
The invention relates to the field of automobile wipers, in particular to a water spraying control method and a water spraying control system of a water spraying wiper.
Background
The conventional water spraying mode of the automobile is to install a water spraying component on a ventilation hood plate or an engine cover, and water covers a front glass window during water spraying, so that the visual field of a driver is influenced, the consumption of cleaning liquid is large, and the cleaning liquid can splash to other positions except glass, which should not be sprayed.
In order to solve the problem, the applicant has devised a water jet wiper in which a water jet head is provided on a wiper head, and the water jet heads are provided on both upper and lower sides of the wiper head, and an optimal water jet manner of the water jet wiper is as follows: when the water spraying windscreen wiper rotates upwards, the water spraying head sprays water to the upper side of the windscreen wiper, and when the windscreen wiper rotates downwards, the water spraying head sprays water to the lower side of the windscreen wiper, so that cleaning water is further saved, the water spraying uniformity is enhanced, and the cleaning effect is improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water spraying control method and a water spraying control system of a water spraying wiper so as to realize the water spraying mode.
The technical scheme adopted for solving the technical problems is as follows: the water spray control method of the water spray wiper comprises the following steps:
electrifying a wiper motor to drive the water spraying wiper to move and switch on and off a water pump switch system;
when the wiper motor drives the water spraying wiper to run upwards, the water pump switch system conducts the upper water spraying pump, the upper water spraying pump starts to work, and the cleaning water is driven to spray above the water spraying wiper;
when the wiper motor drives the water spraying wiper to run downwards, the water pump switch system conducts the lower water spraying pump, and the lower water spraying pump starts to work to drive the cleaning water to spray to the lower side of the water spraying wiper.
Further, the method specifically comprises the following steps:
A. electrifying the wiper motor to enable the wiper motor to operate and drive the water spraying wiper to operate upwards;
B. the water pump switch system is controlled to be switched on and off when the wiper motor runs, the water pump switch system conducts the upper water spraying pump, the upper water spraying pump starts to work, and the cleaning water is driven to spray above the water spraying wiper;
C. when the wiper motor drives the water spraying wiper to move upwards to a set position, the water pump switch system turns off the upper water spraying pump, and the upper water spraying pump stops working and spraying water above the water spraying wiper;
D. when the water spraying wiper is downwards moved to a set position, the water pump switch system conducts the lower water spraying pump, the lower water spraying pump starts to work, and cleaning water is driven to spray below the water spraying wiper;
E. when the wiper motor drives the water spraying wiper to move downwards to a set position, the water pump switch system turns off the lower water spraying pump, and the lower water spraying pump stops working and spraying water to the lower part of the water spraying wiper;
F. and (C) when the wiper motor drives the water spraying wiper to move downwards to the limit position, repeating the steps A to F.
Further, before the water spraying wiper runs for the first time, the upper side water spraying pump is controlled by the vehicle body controller to conduct electricity, the cleaning water is driven to spray above the water spraying wiper, after the set time is continued, the upper side water spraying pump is controlled by the vehicle body controller to conduct electricity continuously, and the wiper motor is conducted.
Further, the water pump switch system comprises an insulating disc, a first guide rail, a second guide rail, a third guide rail, a first contact, a second contact and a third contact, wherein the insulating disc is driven to rotate by a wiper motor, the first guide rail, the second guide rail and the third guide rail are all conductors and are fixed on the end face of the insulating disc, the second guide rail is circular and always contacts with the second contact, the first guide rail is circular and can contact with the first contact, the third guide rail is circular and can contact with the third contact, and when the insulating disc runs to any angle, at most one contact contacts with a corresponding track; the first guide rail and the third guide rail are electrically connected with the second guide rail;
the wiper motor is electrified to drive the insulating disc to rotate, and when a first guide rail on the insulating disc is contacted with a first contact, the first contact is communicated with a second contact, and the upper water spraying pump is communicated; when the first contact leaves the first guide rail, the first contact is disconnected with the second contact, and the upper water spraying pump is powered off;
when a third guide rail on the insulating disc is contacted with the third contact, the third contact is communicated with the second contact, and the lower water spraying pump is conducted; when the third contact leaves the third guide rail, the third contact is disconnected with the second contact, and the lower side water spraying pump is powered off.
Further, the first contact is connected with the vehicle body controller through a reset line, when the first guide rail is in contact with the first contact, the first contact is communicated with the second contact, trapezoidal waves are generated by combining the vehicle body controller, and the water spraying windscreen wiper is reset according to a control strategy of the vehicle body controller.
The water spraying control system for the water spraying windscreen wiper control method comprises a power supply, a windscreen wiper motor, a motor starting switch, an upper side water spraying pump, a lower side water spraying pump, a water spraying starting switch and a water pump switching system, wherein the water pump switching system is connected with the windscreen wiper motor in an on-off mode in an associated mode, the power supply, the windscreen wiper motor and the motor starting switch are connected in series, and the upper side water spraying pump and the lower side water spraying pump are connected in parallel and then connected with the water pump switching system, the water spraying starting switch and the power supply in series.
The water pump switch system comprises an insulating disc, a first guide rail, a second guide rail, a third guide rail, a first contact, a second contact and a third contact, wherein the insulating disc is driven to rotate by a wiper motor, the first guide rail, the second guide rail and the third guide rail are all conductors and are fixed on the end face of the insulating disc, the second guide rail is annular and always contacts with the second contact, the first guide rail is fan-shaped and can contact with the first contact, the third guide rail is fan-shaped and can contact with the third contact, and when the insulating disc runs to any angle, at most one contact contacts with a corresponding track in the third contact and the first contact; the first guide rail and the third guide rail are electrically connected with the second guide rail; the on-off of the second contact and the first contact controls the on-off of the upper side water spray pump, and the on-off of the second contact and the third contact controls the on-off of the lower side water spray pump.
Further, the second contact is connected with one pole of the power supply, the first contact is connected with a relay, the relay is connected with the other pole of the power supply, and the upper water spraying pump is connected in series between the relay and the other pole of the power supply;
the third contact, the lower spray pump and the other pole of the power supply are connected in series.
Further, the central angles corresponding to the first guide rail and the third guide rail are smaller than 180 degrees.
Further, the vehicle body controller is further included, and the relay, the motor starting switch and the water spraying starting switch are all connected with the vehicle body controller;
the first contact is connected with the vehicle body controller through a reset information line.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the movement of the water spraying wiper can be combined with water spraying, so that when the water spraying wiper runs upwards, the water spraying head sprays water to the upper side of the wiper, and when the water spraying wiper runs downwards, the water spraying head sprays water to the lower side of the wiper, thereby saving cleaning water, enhancing the uniformity of water spraying and improving the cleaning effect.
Drawings
Fig. 1 is a circuit schematic of the present invention.
Fig. 2 is a schematic view of the water pump switch system of the present invention in an initial position.
Fig. 3 is a schematic view of a reset disc composed of a first guide rail, a second guide rail and a third guide rail according to the present invention.
Fig. 4 is a schematic diagram of a water pump switching system when water is sprayed to the upper side of the water spray wiper.
Fig. 5 is a schematic diagram of a water pump switching system when water spraying to the upper side of the water spraying wiper is stopped.
Fig. 6 is a schematic view of the water spray wiper when it is operated upward to the extreme position.
Fig. 7 is a schematic diagram of a water pump switching system when water spraying to the lower side of the water spraying wiper is started.
Fig. 8 is a schematic diagram of a water pump switching system when water is sprayed to the lower side of the water spray wiper.
Fig. 9 is a schematic diagram of a water pump switching system when water spraying to the lower side of the water spraying wiper is stopped.
Reference numerals: 1-a wiper motor; 2-upper spray pump; 3-a lower spray pump; 4-a body controller; 5-an insulating disc; 6-a first guide rail; 7-a second guide rail; 8-a third guide rail; 9-a first contact; 10-a second contact; 11-a third contact; 12-a power supply; 13-a motor start switch; 14-a water spray start switch; 15-relay.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The water spray control method of the water spray wiper comprises the following steps:
electrifying the wiper motor 1 to drive the water spraying wiper to move and switch on and off a water pump switch system;
when the wiper motor 1 drives the water spraying wiper to run upwards, the water pump switch system conducts the upper water spraying pump 2, the upper water spraying pump 2 starts to work, and the cleaning water is driven to spray to the upper part of the water spraying wiper;
when the wiper motor 1 drives the water spraying wiper to run downwards, the water pump switch system conducts the lower side water spraying pump 3, the lower side water spraying pump 3 starts to work, and the cleaning water is driven to spray to the lower side of the water spraying wiper.
The wiper motor 1 is connected with the water spray wiper through a mechanical transmission mechanism, and is used for driving the water spray wiper to move upwards and downwards, and the mechanical transmission mechanism can be any transmission mechanism for the vehicle wiper in the prior art. The upper side water spray pump 2 and the lower side water spray pump 3 are connected with the cleaning water tank and the water spray head on the water spray wiper through pipelines, when the upper side water spray pump 2 is electrified, the upper side water spray pump 2 drives the cleaning water to spray to the upper side of the water spray wiper, and when the lower side water spray pump 3 is electrified, the lower side water spray pump 3 drives the cleaning water to spray to the lower side of the water spray wiper. The water pump switch system is used for controlling the on-off of the upper side water spray pump 2 and the lower side water spray pump 3, the water pump switch system is connected with the wiper motor 1, the wiper motor 1 drives the water pump switch system to act, the movement of the water spray wiper can be combined with water spraying, when the wiper motor 1 drives the water spray wiper to operate upwards, the water pump switch system is driven to be on or off, the upper side water spray pump 2 is turned on, the lower side water spray pump 3 is kept off, the upper side water spray pump 2 drives cleaning water to spray to the upper side of the water spray wiper, when the wiper motor 1 drives the water spray wiper to operate downwards, the water pump switch system is also driven to be on or off, the lower side water spray pump 3 is turned on, and the upper side water spray pump 2 is turned off, and the lower side water spray pump 3 drives the cleaning water to spray to the lower side of the water spray wiper. The water spraying mode can save cleaning water, enhance the uniformity of water spraying and improve the cleaning effect.
The method specifically comprises the following steps:
A. the wiper motor 1 is electrified, so that the wiper motor 1 operates and drives the water spraying wiper to operate upwards.
B. When the wiper motor 1 operates, a water pump switch system is driven to be switched on and off, the water pump switch system conducts the upper water spraying pump 2, the upper water spraying pump 2 starts to work, and cleaning water is driven to spray to the upper side of the water spraying wiper.
C. When the wiper motor 1 drives the water spraying wiper to move upwards to a set position, the water pump switch system turns off the upper water spraying pump 2, and the upper water spraying pump 2 stops working and spraying water to the upper part of the water spraying wiper. The set position has a certain distance to the limit position that the upward running of the water spray wiper can reach, and the upward water spray is stopped when the set position is reached, namely, the water spray is stopped before the water spray wiper reaches the highest position of the upward running of the water spray wiper. Specifically, the water spray wiper reaches the limit position after continuing to rotate for 8 to 10 degrees at the set position.
D. When the wiper motor 1 drives the water spraying wiper to move upwards to a limiting position, the wiper motor 1 drives the water spraying wiper to move downwards, and when the water spraying wiper moves downwards to a set position, the water pump switch system conducts the lower water spraying pump 3, the lower water spraying pump 3 starts to work, and cleaning water is driven to spray to the lower side of the water spraying wiper. The setting position in this case is the same as the setting position in step C.
E. When the wiper motor 1 drives the water spraying wiper to move downwards to a set position, the water pump switch system turns off the lower water spraying pump 3, the lower water spraying pump 3 stops working, and water spraying to the lower side of the water spraying wiper is stopped. The set position has a certain distance to the lowest position which can be reached by the downward running of the water spray wiper, namely the initial position of the water spray wiper before the movement. The water spraying downwards is stopped when the position is set, namely, the water spraying is stopped before the water spraying windscreen wiper reaches the limit position of the downward running of the water spraying windscreen wiper. Specifically, the water spray wiper reaches the limit position after continuing to rotate for 8 to 10 degrees at the set position.
F. When the wiper motor 1 drives the water spraying wiper to move downwards to the limit position, the steps A to F are repeated, so that the water spraying wiper can be circularly operated and sprayed, and the window glass can be continuously cleaned.
In the above steps C, D and E, when the water spray wiper reaches the set position, water spraying is stopped or started, so that the area of the water spray area is smaller than the wiping area of the water spray wiper, the water spray wiper can wipe the cleaning water in the water spray area into the wiping area outside the water spray area, the cleaning effect on the glass is not affected, the water spray wiper can be prevented from being completely scraped due to overlarge water spray area and overlarge water spray amount, the phenomenon that water marks are left in the wiping area after the water spray wiper is wiped is avoided, the visual field is prevented from being affected, the waste of the cleaning water is avoided, and the cleaning water is more fully utilized.
Before the first running of the water spraying windscreen wiper, the upper side water spraying pump 2 is controlled to be electrified by the vehicle body controller 4, the cleaning water is driven to be sprayed above the water spraying windscreen wiper, after the set time is continued, the upper side water spraying pump 2 is controlled by the vehicle body controller 4 to continuously electrify and spray water, and the windscreen wiper motor 1 is electrified. After the whole vehicle starts the water spraying and wiping function, the upper side water spraying pump 2 is electrified and runs for 2s to 3s at first, the cleaning water is driven to spray to the upper side of the water spraying windscreen wiper, the windscreen wiper strip and the windscreen wiper are soaked for 2s to 3s, the windscreen wiper strip is fully soaked and then washed, friction force between the windscreen wiper strip and the windscreen wiper can be reduced, and the service life of the windscreen wiper strip is prolonged. And the garbage on the glass is easier to be scraped by the scraping strip after being soaked, so that the cleaning effect is improved.
As shown in fig. 2, the water pump switch system includes an insulating disc 5, a first guide rail 6, a second guide rail 7, a third guide rail 8, a first contact 9, a second contact 10 and a third contact 11, where the insulating disc 5 is driven to rotate by the wiper motor 1, the first guide rail 6, the second guide rail 7 and the third guide rail 8 are all conductive bodies and are fixed on the end surface of the insulating disc 5, the second guide rail 7 is circular and always contacts the second contact 10, the first guide rail 6 is in a fan shape and can contact the first contact 9, the third guide rail 8 is in a fan shape and can contact the third contact 11, and when the insulating disc 5 rotates to any angle, at most one of the third contact 11 and the first contact 9 contacts the corresponding track; the first guide rail 6 and the third guide rail 8 are electrically connected with the second guide rail 7;
after the wiper motor 1 is electrified, the insulating disc 5 is driven to rotate, when a first guide rail 6 on the insulating disc 5 is contacted with a first contact 9, the first contact 9 is communicated with a second contact 10, and the upper water spraying pump 2 is conducted; when the first contact 9 leaves the first guide rail 6, the first contact 9 is disconnected with the second contact 10, and the upper water spraying pump 2 is powered off;
when the third guide rail 8 on the insulating disc 5 is contacted with the third contact 11, the third contact 11 is communicated with the second contact 10, and the lower water spraying pump 3 is conducted; when the third contact 11 leaves the third guide rail 8, the third contact 11 is disconnected from the second contact 10, and the lower-side shower pump 3 is powered off.
The insulating disc 5 is made of insulating materials, particularly plastic or the like, the wiper motor 1 can drive the insulating disc 5 to rotate, the first guide rail 6, the second guide rail 7 and the third guide rail 8 which are arranged on the insulating disc 5 can synchronously rotate along with the insulating disc 5, the first guide rail 6, the second guide rail 7, the third guide rail 8, the first contact 9, the second contact 10 and the third contact 11 are made of conductive metal materials, the first contact 9, the second contact 10 and the third contact 11 are fixedly arranged on other wiper motor parts outside the insulating disc 5, and in the process that the first guide rail 6, the second guide rail 7 and the third guide rail 8 rotate along with the insulating disc 5, as the first guide rail 6 and the third guide rail 8 are electrically connected with the second guide rail 7, when the first guide rail 6 is contacted with the first contact 9, the first contact 9 is communicated with the second contact 10 through the first guide rail 6 and the second guide rail 7; when the third rail 8 is in contact with the third contact 11, the third contact 11 is brought into contact with the second contact 10 via the third rail 8 and the second rail 7; the on-off of the upper side water spray pump 2 is controlled by the operation of the wiper motor 1 by taking the on-off of the first contact 9 and the second contact 10 as a switching mechanism for controlling the on-off of the upper side water spray pump 2, the on-off of the third contact 11 and the second contact 10 as a switching mechanism for controlling the on-off of the lower side water spray pump 3, the first guide rail 6 is contacted with the first contact 9 when the wiper motor 1 drives the water spray wiper to operate upwards by reasonably setting the positions of the first guide rail 6 and the third guide rail 8, the first guide rail 6 can be separated from the first contact 9 when the wiper motor 1 drives the water spray wiper to operate downwards, and the third guide rail 8 is contacted with the third contact 11, so that the lower side water spray pump 3 drives the cleaning water to spray to the lower side of the water spray wiper, and the water spray wiper movement and the water spray cooperation are realized.
The first contact 9 is connected with the vehicle body controller 4 through a reset wire, when the first guide rail 6 is in contact with the first contact 9, the first contact 9 is communicated with the second contact 10, trapezoidal waves are generated by combining the vehicle body controller 4, and water spraying wiper reset is realized according to a control strategy of the vehicle body controller 4. The upper water spraying pump 2 is connected by the first contact 9 to control water spraying, and meanwhile, the reset control logic of the water spraying windscreen wiper is provided, so that the reset of the water spraying windscreen wiper is realized.
The control system for the water spraying control method of the water spraying wiper comprises a power supply 12, a wiper motor 1, a motor starting switch 13, an upper side water spraying pump 2, a lower side water spraying pump 3, a water spraying starting switch 14 and a water pump switching system, wherein the water pump switching system is connected with the wiper motor 1 in an on-off mode, the power supply 12, the wiper motor 1 and the motor starting switch 13 are connected in series, and the upper side water spraying pump 2 and the lower side water spraying pump 3 are connected in parallel and then connected with the water pump switching system, the water spraying starting switch 14 and the power supply 12 in series.
The power supply 12 employs a conventional dc power supply device having a positive electrode and a negative electrode. The wiper motor 1 is connected with the water spray wiper through a mechanical transmission mechanism, and is used for driving the water spray wiper to move upwards and downwards, and the mechanical transmission mechanism can be any transmission mechanism for the vehicle wiper in the prior art. The water spraying starting switch 14 is used for starting and stopping the water spraying function, and the motor starting switch 13 is used for controlling the on-off of the wiper motor 1. The upper side water spray pump 2 and the lower side water spray pump 3 are connected with the cleaning water tank and the water spray head on the water spray wiper through pipelines, when the upper side water spray pump 2 is electrified, the upper side water spray pump 2 drives the cleaning water to spray to the upper side of the water spray wiper, and when the lower side water spray pump 3 is electrified, the lower side water spray pump 3 drives the cleaning water to spray to the lower side of the water spray wiper. The water pump switch system is used for controlling the on-off of the upper water spray pump 2 and the lower water spray pump 3.
The water pump switch system is connected with the wiper motor 1, the wiper motor 1 drives the water pump switch system to act, the movement of the water spraying wiper can be combined with water spraying, the effect that when the wiper motor 1 drives the water spraying wiper to operate upwards, the water pump switch system is also driven to act, the upper side water spraying pump 2 is conducted, the lower side water spraying pump 3 is kept powered off, the upper side water spraying pump 2 drives cleaning water to spray to the upper side of the water spraying wiper, when the wiper motor 1 drives the water spraying wiper to operate downwards, the water pump switch system is also driven to move, the lower side water spraying pump 3 is conducted, the upper side water spraying pump 2 is powered off, and the lower side water spraying pump 3 drives the cleaning water to spray to the lower side of the water spraying wiper is realized.
When the water spraying wiper function is required to be started, the motor starting switch 13 is closed, and when the water spraying wiper function is required to be started, the water spraying starting switch 14 is closed first, and then the motor starting switch 13 is closed.
The water pump switch system comprises an insulating disc 5, a first guide rail 6, a second guide rail 7, a third guide rail 8, a first contact 9, a second contact 10 and a third contact 11, wherein the insulating disc 5 is driven to rotate by a wiper motor 1, the first guide rail 6, the second guide rail 7 and the third guide rail 8 are all conductors and are fixed on the end face of the insulating disc 5, the second guide rail 7 is annular and always contacts with the second contact 10, the first guide rail 6 is annular and can contact with the first contact 9, the third guide rail 8 is annular and can contact with the third contact 11, and when the insulating disc 5 rotates to any angle, at most one contact contacts with the corresponding track in the third contact 11 and the first contact 9; the first guide rail 6 and the third guide rail 8 are electrically connected with the second guide rail 7; the on-off of the second contact 10 and the first contact 9 controls the on-off of the upper side water spray pump 2, and the on-off of the second contact 10 and the third contact 11 controls the on-off of the lower side water spray pump 3.
The insulating disc 5 is made of insulating material, specifically may be plastic, so that the wiper motor 1 can drive the insulating disc 5 to rotate, specifically, the insulating disc 5 may be made of plastic, and may be directly installed on the spindle of the wiper motor 1 or on a gear on the spindle of the wiper motor 1. The first guide rail 6, the second guide rail 7 and the third guide rail 8 which are arranged on the insulating disc 5 can synchronously rotate along with the insulating disc 5, the first guide rail 6, the second guide rail 7, the third guide rail 8, the first contact 9, the second contact 10 and the third contact 11 are all made of conductive metal materials, the first contact 9, the second contact 10 and the third contact 11 are fixedly arranged on other wiper motor components outside the insulating disc 5, and in the process that the first guide rail 6, the second guide rail 7 and the third guide rail 8 rotate along with the insulating disc 5, as the first guide rail 6 and the third guide rail 8 are electrically connected with the second guide rail 7, when the first guide rail 6 is contacted with the first contact 9, the first contact 9 is communicated with the second contact 10 through the first guide rail 6 and the second guide rail 7; when the third rail 8 is in contact with the third contact 11, the third contact 11 is brought into contact with the second contact 10 via the third rail 8 and the second rail 7; the on-off of the upper side water spray pump 2 is controlled by the operation of the wiper motor 1 by taking the on-off of the first contact 9 and the second contact 10 as a switching mechanism for controlling the on-off of the upper side water spray pump 2, the on-off of the third contact 11 and the second contact 10 as a switching mechanism for controlling the on-off of the lower side water spray pump 3, the first guide rail 6 is contacted with the first contact 9 when the wiper motor 1 drives the water spray wiper to operate upwards by reasonably setting the positions of the first guide rail 6 and the third guide rail 8, the first guide rail 6 can be separated from the first contact 9 when the wiper motor 1 drives the water spray wiper to operate downwards, and the third guide rail 8 is contacted with the third contact 11, so that the lower side water spray pump 3 drives the cleaning water to spray to the lower side of the water spray wiper, and the water spray wiper movement and the water spray cooperation are realized.
The second contact 10 is connected with one pole of the power supply 12, the first contact 9 is connected with a relay 15, the relay 15 is connected with the other pole of the power supply 12, and the upper water spraying pump 2 is connected in series between the relay 15 and the other pole of the power supply 12; the third contact 11, the lower spray pump 3 and the other pole of the power supply 12 are connected in series.
Specifically, the first contact 9 is connected to the coil of the relay 15, and the upper side water jet pump 2 is connected to the normally open contact of the relay 15. The second contact 10 can be connected with the positive electrode of the power supply 12 or the negative electrode of the power supply 12, when the second contact 10 is connected with the positive electrode of the power supply 12, the relay 15 is connected with the negative electrode of the power supply 12, and the upper water spraying pump 2 is connected in series between the relay 15 and the negative electrode of the power supply 12; the third contact 11, the lower water jet pump 3, and the negative electrode of the power supply 12 are connected in series. When the second contact 10 is connected with the negative electrode of the power supply 12, the relay 15 is connected with the positive electrode of the power supply 12, and the upper water spraying pump 2 is connected in series between the relay 15 and the positive electrode of the power supply 12; the third contact 11, the lower water jet pump 3, and the positive electrode of the power supply 12 are connected in series.
The control system of the invention also comprises a vehicle body controller 4, wherein the relay 15, the motor starting switch 13 and the water spraying starting switch 14 are all connected with the vehicle body controller 4; the first contact 9 is connected with the vehicle body controller 4 through a reset information line.
The control mode of the vehicle body controller 4 is a control mode based on a BCM collecting trapezoid square wave, the first contact 9 is connected with the vehicle body controller 4 through a reset information line, the first contact 9 is used for controlling the on-off of the upper side water spray pump 2 and outputting a reset signal to the vehicle body controller 4, the first contact 9 cannot be powered on and powered off, and therefore the relay 15 is used for indirectly controlling the on-off of the upper side water spray pump 2. The specific control process is as follows:
after the second contact 10 is communicated with the first contact 9, the coil of the relay 15 is electrified, so that the armature of the relay 15 is driven to be communicated with the normally open contact, and the upper water spraying pump 2 is electrified. When the second contact 10 is connected to the third contact 11, the lower jet pump 3 is directly energized.
The relay 15, the motor start switch 13 and the water spray start switch 14 are all connected with the vehicle body controller 4, when the water spray wiping function is about to start each time, after the water spray start switch 14 is closed, the vehicle body controller 4 firstly controls the relay 15 to be electrified, the upper side water spray pump 2 is electrified, cleaning water is driven to spray water towards the upper side of the water spray wiper, after the cleaning water lasts for 2 to 3 seconds, the vehicle body controller 4 controls the relay 15 to be continuously electrified, controls the motor start switch 13 to be closed, and then the circulating water spray wiping process is completed.
The first guide rail 6, the second guide rail 7 and the third guide rail 8 may be respectively provided, and the first guide rail 6 and the third guide rail 8 are connected with the second guide rail 7 through wires or conductive metal sheets, preferably, as shown in fig. 3, the first guide rail 6, the second guide rail 7 and the third guide rail 8 are integrally formed reset plates. The reset plate is made of metal plates, is more convenient to manufacture and install as a whole, can be integrally embedded into the end face of the insulating disc 5, and the face contacted with each contact is flush with the end face of the insulating disc 5.
The central angles corresponding to the first guide rail 6 and the third guide rail 8 are smaller than 180 degrees. As shown in fig. 3, the central angle corresponding to the first guide rail 6 is a, the central angle corresponding to the third guide rail 8 is b, the wiper motor 1 drives the insulating disk 5 to rotate 180 degrees, the water spraying wiper finishes the upward rotation process, the wiper motor 1 drives the insulating disk 5 to rotate 180 degrees again, the water spraying wiper finishes the downward rotation process, and the insulating disk 5 rotates for one circle, namely the water spraying wiper finishes a complete wiping process. a and b are smaller than 180 degrees, and before the water spraying wiper rotates to the limit position, the first guide rail 6 is separated from the first contact 9, or the third guide rail 8 is separated from the third contact 11, so that water spraying can be stopped before the water spraying wiper moves to the limit position. Specifically:
the initial position of the water pump switching system is shown in fig. 2, the end of the first guide rail 6 is in contact with the first contact 9, and the third guide rail 8 is separated from the third contact 11. After the wiper motor 1 is started, the water spray wiper moves upwards, cleaning water is sprayed above the water spray wiper, and the position relationship of all parts on the water pump switch system is shown in fig. 4. When the water spray wiper moves upwards to the set position, the first guide rail 6 is just separated from the first contact 9, the third guide rail 8 is kept separated from the third contact 11, and water spray to the upper side of the water spray wiper is stopped as shown in fig. 5. When the water jet wiper continues to move up to the extreme position, as shown in fig. 6, the first guide rail 6 remains disengaged from the first contact 9, and the third guide rail 8 remains disengaged from the third contact 11. Then the wiper motor 1 continues to run to drive the water spray wiper to run downwards, when the water spray wiper runs downwards to a set position, the third guide rail 8 and the third contact 11 start to contact, the first guide rail 6 and the first contact 9 keep separated, and water spray is started to the lower side of the water spray wiper, as shown in fig. 7. The water spray wiper continues to run downward, maintaining water spray to the underside of the water spray wiper, as shown in fig. 8. When the water spray wiper runs down to the set position, the third guide rail 8 is just separated from the third contact 11, the first guide rail 6 is kept separated from the first contact 9, and water spray to the lower side of the water spray wiper is stopped, as shown in fig. 9. When the water spray wiper runs downwards to the limit position, the water pump switch system returns to the initial position shown in fig. 2, and one water spray wiping period is completed.
The area of the water spraying area is smaller than the wiping area of the water spraying wiper, the water spraying wiper can wipe the cleaning water in the water spraying area outside the water spraying area, the cleaning effect on glass is not affected, the water spraying wiper can be prevented from being completely scraped due to overlarge water spraying area and overlarge water spraying amount, water marks are left in the wiping area after the water spraying wiper is wiped, the visual field is prevented from being affected, meanwhile, the waste of the cleaning water is avoided, and the cleaning water is more fully utilized.

Claims (9)

1. The water spray control method of the water spray wiper is characterized by comprising the following steps:
electrifying a wiper motor (1) to drive the water spraying wiper to move and switch on and off a water pump switch system;
when the wiper motor (1) drives the water spraying wiper to run upwards, the water pump switch system conducts the upper water spraying pump (2), the upper water spraying pump (2) starts to work, and the cleaning water is driven to spray to the upper part of the water spraying wiper;
when the wiper motor (1) drives the water spraying wiper to run downwards, the water pump switch system conducts the lower water spraying pump (3), the lower water spraying pump (3) starts to work, and the cleaning water is driven to spray to the lower side of the water spraying wiper;
the water pump switch system comprises an insulating disc (5), a first guide rail (6), a second guide rail (7), a third guide rail (8), a first contact (9), a second contact (10) and a third contact (11), wherein the insulating disc (5) is driven to rotate by a wiper motor (1), the first guide rail (6), the second guide rail (7) and the third guide rail (8) are all conductors and are fixed on the end face of the insulating disc (5), the second guide rail (7) is in a circular ring shape and is always contacted with the second contact (10), the first guide rail (6) is in a fan shape and can be contacted with the first contact (9), the third guide rail (8) is in a fan shape and can be contacted with the third contact (11), and when the insulating disc (5) runs to any angle, at most one contact is contacted with a corresponding track in the third contact (11) and the first contact (9). The first guide rail (6) and the third guide rail (8) are electrically connected with the second guide rail (7);
the wiper motor (1) drives the insulating disc (5) to rotate after being electrified, when a first guide rail (6) on the insulating disc (5) is contacted with a first contact (9), the first contact (9) is communicated with a second contact (10), and the upper water spraying pump (2) is communicated; when the first contact (9) leaves the first guide rail (6), the first contact (9) is disconnected with the second contact (10), and the upper water spraying pump (2) is powered off;
when a third guide rail (8) on the insulating disc (5) is in contact with a third contact (11), the third contact (11) is communicated with a second contact (10), and the lower water spraying pump (3) is communicated; when the third contact (11) leaves the third guide rail (8), the third contact (11) is disconnected from the second contact (10), and the lower water jet pump (3) is powered off.
2. The water spray control method of a water spray wiper according to claim 1, characterized by comprising the steps of:
A. energizing the wiper motor (1) to enable the wiper motor (1) to operate and drive the water spraying wiper to operate upwards;
B. the wiper motor (1) is operated to control the on-off of a water pump switch system, the water pump switch system conducts the upper water spray pump (2), the upper water spray pump (2) starts to work, and the cleaning water is driven to spray above the water spray wiper;
C. when the wiper motor (1) drives the water spraying wiper to move upwards to a set position, the water pump switching system turns off the upper water spraying pump (2), the upper water spraying pump (2) stops working, and water spraying to the upper part of the water spraying wiper is stopped;
D. when the wiper motor (1) drives the water spraying wiper to move upwards to a limit position, the wiper motor (1) drives the water spraying wiper to move downwards, and when the water spraying wiper moves downwards to a set position, the water pump switch system conducts the lower water spraying pump (3), the lower water spraying pump (3) starts to work, and cleaning water is driven to spray to the lower side of the water spraying wiper;
E. when the wiper motor (1) drives the water spraying wiper to move downwards to a set position, the water pump switching system turns off the lower water spraying pump (3), the lower water spraying pump (3) stops working, and water spraying to the lower side of the water spraying wiper is stopped;
F. and (C) repeating the steps A to F when the wiper motor (1) drives the water spraying wiper to move downwards to the limit position.
3. The water spray control method of the water spray wiper according to claim 1, wherein before the water spray wiper is operated for the first time, the upper side water spray pump (2) is controlled to be electrified by the vehicle body controller (4), the cleaning water is driven to spray above the water spray wiper, and after a set time, the upper side water spray pump (2) is controlled by the vehicle body controller (4) to continue to be electrified, and the wiper motor (1) is electrified.
4. The water spray control method of the water spray wiper according to claim 1, wherein the first contact (9) is connected with the car body controller (4) through a reset line, when the first guide rail (6) is in contact with the first contact (9), the first contact (9) is communicated with the second contact (10), trapezoid waves are generated by combining with the car body controller (4), and the water spray wiper reset is realized according to a control strategy of the car body controller (4).
5. Control system for a water spray control method of a water spray wiper according to any of the claims 1-4, characterized by comprising a power supply (12), a wiper motor (1), a motor start switch (13), an upper side water spray pump (2), a lower side water spray pump (3), a water spray start switch (14) and a water pump switch system, wherein the water pump switch system is connected on and off in connection with the wiper motor (1), the power supply (12), the wiper motor (1) and the motor start switch (13) are connected in series, and the upper side water spray pump (2) and the lower side water spray pump (3) are connected in parallel and then connected in series with the water pump switch system, the water spray start switch (14) and the power supply (12).
6. The water spray control system of the water spray wiper according to claim 5, characterized in that the water pump switch system comprises an insulating disc (5), a first guide rail (6), a second guide rail (7), a third guide rail (8), a first contact (9), a second contact (10) and a third contact (11), wherein the insulating disc (5) is driven to rotate by the wiper motor (1), the first guide rail (6), the second guide rail (7) and the third guide rail (8) are all electric conductors and are fixed on the end face of the insulating disc (5), the second guide rail (7) is in a circular ring shape and always contacts with the second contact (10), the first guide rail (6) is in a fan shape and can contact with the first contact (9), the third guide rail (8) is in a fan shape and can contact with the third contact (11), and when the insulating disc (5) runs to any angle, at most one contact is contacted with a corresponding track; the first guide rail (6) and the third guide rail (8) are electrically connected with the second guide rail (7); the on-off of the second contact (10) and the first contact (9) control the on-off of the upper side water spray pump (2), and the on-off of the second contact (10) and the third contact (11) control the on-off of the lower side water spray pump (3).
7. The water spray control system of the water spray wiper according to claim 6, wherein the second contact (10) is connected with one pole of the power supply (12), the first contact (9) is connected with a relay (15), the relay (15) is connected with the other pole of the power supply (12), and the upper water spray pump (2) is connected in series between the relay (15) and the other pole of the power supply (12);
the third contact (11), the lower water jet pump (3) and the other pole of the power supply (12) are connected in series.
8. The water spray control system of a water spray wiper according to claim 6, characterized in that the central angle corresponding to the first guide rail (6) and the third guide rail (8) is smaller than 180 °.
9. The water spray control system of the water spray wiper as recited in claim 7 further comprising a body controller (4), wherein the relay (15), the motor start switch (13) and the water spray start switch (14) are all connected to the body controller (4);
the first contact (9) is connected with the vehicle body controller (4) through a reset information line.
CN201910012034.5A 2019-01-07 2019-01-07 Water spraying control method and water spraying control system of water spraying windscreen wiper Active CN109624928B (en)

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CN114590226A (en) * 2022-03-25 2022-06-07 雷沃工程机械集团有限公司 Control method and device for windscreen wiper of excavator
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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CN101708710A (en) * 2009-09-14 2010-05-19 奇瑞汽车股份有限公司 System and method for controlling time for spraying cleaning solution
CN205601792U (en) * 2016-03-17 2016-09-28 博世汽车部件(长沙)有限公司 A motor and wiper system for wiper system
FR3063953A1 (en) * 2017-03-15 2018-09-21 Valeo Systemes D'essuyage METHOD AND DEVICE FOR APPLYING A HYDROPHOBIC LIQUID TO A GLASS OF A MOTOR VEHICLE

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