CN101722931A - Wiper control system and control method thereof - Google Patents
Wiper control system and control method thereof Download PDFInfo
- Publication number
- CN101722931A CN101722931A CN200910214181A CN200910214181A CN101722931A CN 101722931 A CN101722931 A CN 101722931A CN 200910214181 A CN200910214181 A CN 200910214181A CN 200910214181 A CN200910214181 A CN 200910214181A CN 101722931 A CN101722931 A CN 101722931A
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- power supply
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- electrical machine
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007664 blowing Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract 2
- 238000007790 scraping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention provides a wiper control system which can control wiper arms to return accurately and reliably and a control method thereof. The wiper control system comprises a controller and a wiper motor, wherein the controller comprises a timing unit, the controller is connected with a mode selection switch and a reset switch, a first output end of the controller controls a mode relay, a second output end controls a power supply relay, a moving contact of the mode relay is connected with the moving contact of the power supply relay, two static contacts of the mode relay are respectively connected with a low-speed switch and a high-speed switch of the wiper motor, two static contacts of the power supply relay are respectively connected with a power supply and the ground, and the wiper motor is further grounded through a ground pin of the wiper motor. The controller comprises the timing unit and can determine the time delay of a wiper through theoretical calculation and vehicle parameter matching, carry out timing according to the time delay, disconnect the power supply relay at the appropriate time and brake the back-eletromotive force of the wiper motor, thereby returning the wiper arms accurately and reliably.
Description
Technical field
The invention belongs to technical field of automotive electronics, specially refer to the windscreen wiper system of automobile.
Background technology
At sleety weather, for a visual field clearly is provided to chaufeur, guarantee to drive safety, on the preceding windscreen of automobile windscreen wiper system is installed, the sleet before making on the windscreen can be eliminated timely.Windscreen wiper system is made up of rain shaving electrical machine, windscreen wiper arm and scraping blade usually, and rain shaving electrical machine utilizes the electric energy of storage battery to drive, and drives the motion of windscreen wiper arm and scraping blade, thus the sleet on the windscreen before removing.Windscreen wiper system is satisfying basic function---remove in the sleet on the front windshield glass, must guarantee that also the windscreen wiper arm can get back to start bit accurately and reliably.Application number a kind of automatically controlled windshield wiper that resets that has been 200620034534 patent disclosure, this windshield wiper comprises motor and switch, described motor is connected with switch, selects closing down and rotating speed of motor by described switch; It is characterized in that: also comprise ECU (Electrical Control Unit) and sensor, described ECU (Electrical Control Unit) is connected with described switch, is used to gather the electric machine operation state signal, the output switching control instruction; Described sensor has the fixing acquisition of signal part of relative motor position, is electrically connected with described ECU (Electrical Control Unit), and described sensor has moving part, with described motor output shaft interlock.The shortcoming of this kind windshield wiper is that structure is comparatively complicated, is subjected to the influence of running car situation and windscreen wiper speed easily and can not makes the accurate return of windscreen wiper arm.
Summary of the invention
First purpose of the present invention is to propose a kind of rain blowing controlled system that can control accurate, the reliable return of windscreen wiper arm.
Rain blowing controlled system of the present invention comprises controller and rain shaving electrical machine, key is that described controller includes timing unit, described controller and Pattern Select Switch, reset switch links to each other, the first mouth master mode relay of controller, second mouth control power supply relay, the moving contact of described pattern relay links to each other with the moving contact of power supply relay, two break back contacies of described pattern relay link to each other with high speed switch with the low speed switch of rain shaving electrical machine respectively, two break back contacies of described power supply relay link to each other with ground with power supply respectively, and described rain shaving electrical machine also passes through the grounding pin ground connection of self.
Windscreen wiper stops to satisfy two conditions: Pattern Select Switch is OFF shelves and windscreen wiper reset switch closure.When controller detects these two conditions and satisfies, just stop to drive rain shaving electrical machine, satisfy to the time that rain shaving electrical machine stops operating and be called delay time from detecting these two conditions, can the size of delay time directly has influence on the windscreen wiper arm get back to start bit accurately.The controller of rain blowing controlled system of the present invention is controlled the work of rain shaving electrical machine by master mode relay and power supply relay, when controller is judged need be with the windscreen wiper return time, as long as power cut-off relay, controller includes timing unit, can calculate and the real vehicle parameter matching by theoretical, determine the delay time of windscreen wiper, and carry out timing according to this delay time, separated in due course power supply relay, make accurately return of windscreen wiper arm, this kind control system is not subjected to the influence of external environment, reliable operation.
Second purpose of the present invention is the control method that proposes above-mentioned rain blowing controlled system.
This control method step is as follows: the incoming signal of controller detecting pattern select switch and reset switch, and, control the work of rain shaving electrical machine then by the adhesive of master mode relay and power supply relay according to the mode of operation of this input-signal judging windscreen wiper.
When controller detects being input as of Pattern Select Switch " OFF " shelves, and when reset switch is closed, the moving contact of controller control power supply relay is connected the ground end behind delay time T, the moving contact of master mode relay is connected the low speed end, described delay time T=power supply relay pickup time+Pattern Select Switch and the input of reset switch signal time+time that controller logic is judged.
When the needs windscreen wiper quits work, when the windscreen wiper arm resets, the moving contact ground connection of controller control power supply relay, the moving contact of pattern relay is connected the low speed end of rain shaving electrical machine, simultaneously because rain shaving electrical machine self has grounding pin, like this rain shaving electrical machine, pattern relay and power supply relay just form one close and the loop, the counter electromotive force that forms in the time of can utilizing rain shaving electrical machine to rotate is braked, and guarantees that the windscreen wiper arm can accurately get back to start bit.
Described delay time T is preferably 20～30 milliseconds.
Rain blowing controlled system of the present invention is simple in structure, cost is low, reliable operation, by suitable delay time is set, and utilizes the counter electromotive force of rain shaving electrical machine to brake, can make the windscreen wiper arm accurately, return reliably.
Description of drawings
Fig. 1 is the schematic circuit diagram of rain blowing controlled system of the present invention.
The specific embodiment
Describe the present invention in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
The rain blowing controlled system of present embodiment comprises controller 1 and rain shaving electrical machine 2, described controller 1 is for having the microprocessor of clocking capability, the first mouth OUT1 foot control molding formula relay 4 of controller 1, the second mouth OUT2 foot control system power supply relay 3, the moving contact of described pattern relay 4 links to each other with the moving contact of power supply relay 3, two break back contacies of described pattern relay 4 link to each other with high speed switch with the low speed switch of rain shaving electrical machine 2 respectively, two break back contacies of described power supply relay 3 link to each other with ground with the 12V power supply respectively, and described rain shaving electrical machine 2 also passes through the grounding pin ground connection of self.
Described Pattern Select Switch 5 comprises two groups of identical mode switchs, every group mode switch all same position be provided with high speed, low speed, intermittently, close four contacts, described Pattern Select Switch 5 comprises that also can be controlled the control button that two group mode switch same contacts open and close situation simultaneously, described controller 1 has three input ends, wherein the high speed of first input end IN1 pin and a group mode switch, intermittently the contact links to each other, the second input end IN2 pin links to each other with high speed, the low speed contact of another group mode switch, and the 3rd input end IN3 pin links to each other with reset switch 6.
The control method of above-mentioned rain blowing controlled system is as follows:
This control method step is as follows: the incoming signal of controller 1 detecting pattern select switch 5 and reset switch 6, incoming level by first input end IN1 pin, the second input end IN2 pin is judged the mode of operation of windscreen wiper, controls the work of rain shaving electrical machine 2 then by the master mode relay 4 and the adhesive of power supply relay 3.Concrete judgement and control method be the form of face as follows:
Detect the OFF pattern that is input as of Pattern Select Switch 5 when controller 1, and during reset switch 6 closures, the moving contact of control power supply relay 3 is connected the ground end behind delay time T, the moving contact of master mode relay 4 is connected the low speed end, the time of time+controller 1 logic determines of 3 pickup times of described delay time T=power supply relay+Pattern Select Switch 5 and the input of reset switch 6 signals.
When the needs windscreen wiper quits work, when the windscreen wiper arm resets, the moving contact ground connection of controller 1 control power supply relay 3, the moving contact of pattern relay 4 is connected the low speed end of rain shaving electrical machine 2, simultaneously because rain shaving electrical machine 2 self has grounding pin, like this rain shaving electrical machine 2, pattern relay 4 and power supply relay 3 just form one close and the loop, the counter electromotive force that forms in the time of can utilizing rain shaving electrical machine 2 to rotate is braked, and guarantees that the windscreen wiper arm can accurately get back to start bit.
Windscreen wiper stops to satisfy two conditions: Pattern Select Switch 5 is OFF shelves and windscreen wiper reset switch 6 closures.When controller 1 detects these two conditions and satisfies, just stop to drive rain shaving electrical machine 2, satisfy to the time that rain shaving electrical machine 2 stops operating and be called delay time T from detecting these two conditions, the size of delay time T directly has influence on the start bit of getting back to that can the windscreen wiper arm prepare.In general, time≤10 of relay adhesive millisecond, this is by the intrinsic characteristic decision of relay itself, can't adjust.The adjustable time is exactly the time that controller is judged, when writing software, can determine this judgement time.The judgement time of adjusting control device software the inside is adjusted delay time T, exactly if the time is long, as 70 milliseconds, in 70 milliseconds time, rain shaving electrical machine rotates always, drive the scraping arm of having got back to start bit originally and continue motion, cause the windscreen wiper arm accurately not reset; Or the rain shaving electrical machine rotation, drive reset switch and be transformed into off-state by previous closure state, make rain shaving electrical machine not satisfy the condition that stops, causing rain shaving electrical machine to rotate can not stop; If the time is too short, as 10 milliseconds, then rain shaving electrical machine is under the condition of normal rotation, because the inevitable dither signal of switch, what make controller error easily is judged as the OFF state with the wiper mode select switch, like this when rain shaving electrical machine rotation drive windscreen wiper arm is got back to start bit, cause rain shaving electrical machine to stop, and after dither signal disappeared, rain shaving electrical machine is normal rotation again, the motion of drive scraping arm, moving phenomenon of stopping time when the windscreen wiper arm occurring.For guarantee windscreen wiper can failure-free work, and can accurately get back to start bit, through the real vehicle parameter matching, delay time T is defined as 25 milliseconds.
Claims (4)
1. rain blowing controlled system, comprise controller and rain shaving electrical machine, it is characterized in that described controller includes timing unit, described controller and Pattern Select Switch, reset switch links to each other, the first mouth master mode relay of controller, second mouth control power supply relay, the moving contact of described pattern relay links to each other with the moving contact of power supply relay, two break back contacies of described pattern relay link to each other with high speed switch with the low speed switch of rain shaving electrical machine respectively, two break back contacies of described power supply relay link to each other with ground with power supply respectively, and described rain shaving electrical machine also passes through the grounding pin ground connection of self.
2. the control method of rain blowing controlled system according to claim 1, the incoming signal that it is characterized in that controller detecting pattern select switch and reset switch, and, control the work of rain shaving electrical machine then by the adhesive of master mode relay and power supply relay according to the mode of operation of this input-signal judging windscreen wiper.
3. the control method of rain blowing controlled system according to claim 2, it is characterized in that detecting being input as of Pattern Select Switch " OFF " shelves when controller, and when reset switch is closed, the moving contact of controller control power supply relay is connected the ground end behind delay time T, the moving contact of master mode relay is connected the low speed end, described delay time T=power supply relay pickup time+Pattern Select Switch and the input of reset switch signal time+time that controller logic is judged.
4. the control method of rain blowing controlled system according to claim 3 is characterized in that described delay time T is 20～30 milliseconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102141817A CN101722931B (en) | 2009-12-25 | 2009-12-25 | Wiper control system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102141817A CN101722931B (en) | 2009-12-25 | 2009-12-25 | Wiper control system and control method thereof |
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| Publication Number | Publication Date |
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| CN101722931A true CN101722931A (en) | 2010-06-09 |
| CN101722931B CN101722931B (en) | 2011-11-16 |
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| CN2009102141817A Active CN101722931B (en) | 2009-12-25 | 2009-12-25 | Wiper control system and control method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069777A (en) * | 2010-12-24 | 2011-05-25 | 埃泰克汽车电子(芜湖)有限公司 | Motor vehicle windscreen wiper control module and control method thereof |
| CN102390356A (en) * | 2011-09-30 | 2012-03-28 | 龚文资 | Self-return system for auto wiper motors |
| CN102642521A (en) * | 2012-04-24 | 2012-08-22 | 李河林 | Window scrubber |
| CN102910150A (en) * | 2012-10-15 | 2013-02-06 | 中联重科股份有限公司渭南分公司 | Windscreen wiper, control method and controller of windscreen wiper, wiper system and automobile |
| CN103515686A (en) * | 2013-10-16 | 2014-01-15 | 中国电子科技集团公司第三十九研究所 | Braking protection method of non balance weight antenna |
| CN104608744A (en) * | 2014-12-03 | 2015-05-13 | 湖南工业大学 | Motor vehicle electric windscreen wiper control device controlled by film switch |
| CN104925026A (en) * | 2015-06-29 | 2015-09-23 | 无锡商业职业技术学院 | Automatic water wiping device of automobile windscreen wiper |
| CN105300705A (en) * | 2015-10-08 | 2016-02-03 | 上海大众汽车有限公司 | Wiper test device |
| CN105353309A (en) * | 2015-12-04 | 2016-02-24 | 江苏大学 | Automobile wiper motor performance detection apparatus and detection method |
| CN106541926A (en) * | 2015-09-23 | 2017-03-29 | 上海海拉电子有限公司 | Screen wiper protection system, method and the motor vehicles with the system |
| CN110239490A (en) * | 2014-10-31 | 2019-09-17 | 伟摩有限责任公司 | System for controlling Wiper blade component movement |
| CN111376868A (en) * | 2018-12-29 | 2020-07-07 | 联合汽车电子有限公司 | Wiper control circuit |
| US11554756B2 (en) | 2014-10-31 | 2023-01-17 | Waymo Llc | Control for passive wiper system |
-
2009
- 2009-12-25 CN CN2009102141817A patent/CN101722931B/en active Active
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069777A (en) * | 2010-12-24 | 2011-05-25 | 埃泰克汽车电子(芜湖)有限公司 | Motor vehicle windscreen wiper control module and control method thereof |
| CN102069777B (en) * | 2010-12-24 | 2014-03-26 | 埃泰克汽车电子(芜湖)有限公司 | Motor vehicle windscreen wiper control module and control method thereof |
| CN102390356A (en) * | 2011-09-30 | 2012-03-28 | 龚文资 | Self-return system for auto wiper motors |
| CN102390356B (en) * | 2011-09-30 | 2013-10-23 | 龚文资 | Self-return system for auto wiper motors |
| CN102642521B (en) * | 2012-04-24 | 2015-03-04 | 李河林 | Window scrubber |
| CN102642521A (en) * | 2012-04-24 | 2012-08-22 | 李河林 | Window scrubber |
| CN102910150A (en) * | 2012-10-15 | 2013-02-06 | 中联重科股份有限公司渭南分公司 | Windscreen wiper, control method and controller of windscreen wiper, wiper system and automobile |
| CN103515686B (en) * | 2013-10-16 | 2016-08-10 | 中国电子科技集团公司第三十九研究所 | A kind of braking protection method of non balance weight antenna |
| CN103515686A (en) * | 2013-10-16 | 2014-01-15 | 中国电子科技集团公司第三十九研究所 | Braking protection method of non balance weight antenna |
| US11851033B2 (en) | 2014-10-31 | 2023-12-26 | Waymo Llc | Control for passive wiper system |
| CN110239490A (en) * | 2014-10-31 | 2019-09-17 | 伟摩有限责任公司 | System for controlling Wiper blade component movement |
| CN110239490B (en) * | 2014-10-31 | 2023-02-21 | 伟摩有限责任公司 | System for controlling movement of a wiper blade assembly |
| US11554756B2 (en) | 2014-10-31 | 2023-01-17 | Waymo Llc | Control for passive wiper system |
| CN104608744A (en) * | 2014-12-03 | 2015-05-13 | 湖南工业大学 | Motor vehicle electric windscreen wiper control device controlled by film switch |
| CN104608744B (en) * | 2014-12-03 | 2016-08-24 | 湖南工业大学 | The electronic windscreen wiper of locomotive that a kind of thin film switch controls controls device |
| CN104925026A (en) * | 2015-06-29 | 2015-09-23 | 无锡商业职业技术学院 | Automatic water wiping device of automobile windscreen wiper |
| CN106541926A (en) * | 2015-09-23 | 2017-03-29 | 上海海拉电子有限公司 | Screen wiper protection system, method and the motor vehicles with the system |
| CN106541926B (en) * | 2015-09-23 | 2019-08-09 | 上海海拉电子有限公司 | Screen wiper protects system, method and the motor vehicle with the system |
| CN105300705A (en) * | 2015-10-08 | 2016-02-03 | 上海大众汽车有限公司 | Wiper test device |
| CN105300705B (en) * | 2015-10-08 | 2017-08-25 | 上汽大众汽车有限公司 | Wiper experimental rig |
| CN105353309B (en) * | 2015-12-04 | 2018-04-24 | 江苏大学 | A kind of automobile wiper motor method for testing performance |
| CN105353309A (en) * | 2015-12-04 | 2016-02-24 | 江苏大学 | Automobile wiper motor performance detection apparatus and detection method |
| CN111376868A (en) * | 2018-12-29 | 2020-07-07 | 联合汽车电子有限公司 | Wiper control circuit |
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| Publication number | Publication date |
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| CN101722931B (en) | 2011-11-16 |
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