CN103010164B - Intelligent speed-adjusting control method of vehicle wiper - Google Patents
Intelligent speed-adjusting control method of vehicle wiper Download PDFInfo
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- CN103010164B CN103010164B CN201210566638.2A CN201210566638A CN103010164B CN 103010164 B CN103010164 B CN 103010164B CN 201210566638 A CN201210566638 A CN 201210566638A CN 103010164 B CN103010164 B CN 103010164B
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Abstract
The invention discloses an intelligent speed-adjusting control method of a vehicle wiper. Any structure of the existing wiper device does not need to be changed, a rain quantity sensor does not need to be additionally arranged, some agreed opening and closing operation methods are adopted, and the speed adjusting can be executed by a controller. A driver can make judgments according to the rain quantity, can freely set the rain wiping intermittent time and the rain wiping speed of the wiper by carrying out the simple opening and closing operations, and can freely select the satisfied control values. The problems of reliability and difficult optimum matching of rain wiping speed and rain quantity in the prior art are solved. The vehicle wiper has the advantages that the cost is low, the function is higher, the operation is convenient, the safety and the reliability are realized, and the vehicle wiper is ideal for vehicles, especially for medium-end and low-end vehicles.
Description
Technical field
The present invention relates to automotive field, more particularly, relate to a kind of automobile-used windscreen wiper intelligent speed-regulating control method.
Background technology
At present, existing automobile-used windscreen wiper, it scrapes water speed control multiple technologies method, the the most basic technical scheme of main flow is: can realize intermittently (INT) shelves, at a slow speed (I) shelves, three kinds of (II) shelves etc. are scraped water speed control fast, intermittently shelves are completed by intermittent controller, and intermittent time immobilizes; At a slow speed shelves and fast shelves decided by motor body structure, its at a slow speed or fast speed speed also fix.The shortcoming of this technical method is: because the size of rainfall is uncertain, and it is too single to scrape water speed, its speed is difficult to match with rainfall, be not be often soon exactly slow, fast can bring unnecessary wiper noise and disturb too much driver's sight line, slow can having little time scraped rainwater clean and blocks driver's sight line.For these defects, there are at present two kinds of improved technical methods, one be at a slow speed shelves, fast shelves are constant, only intermittent time process-is set to maximum and scrape water intermittent time (normally about 15 seconds), again it is subdivided into some shelves, select corresponding intermittent time by corresponding driving switch, generally have 4 grades of left and right (gear is more, and cost is higher).The method to intermittent time control optimize, but not thorough, the one, maximum is scraped water intermittent time and is fixed, and the 2nd, need to increase driving switch and can bring system cost to increase, and scrape selection random of water intermittent time or not, can not reach best mating with rainfall; Another kind is that water is scraped in rainfall induction, the size of responding to rainfall by rain sensor is selected intermittently shelves, slow shelves or fast shelves automatically, thereby save the action of these three driving switch of driver operation, the method is from scraping water speed governing aspect, the same in essence with the most basic technical scheme of introducing above, but system cost has exceeded much, once and the method to also have a defect the most fatal be rain sensor blocked by mud or other colloids after, can carry out and scrape water by quick shelves.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, propose a kind of simple in structure, cost is low, easy to use, set arbitrarily or cancel the rotating speed of rain shaving electrical machine and the intelligent speed-regulating control method of scraping water intermittent time by driver.
The technical scheme that adopted is to achieve the object of the present invention:
A kind of automobile-used windscreen wiper intelligent speed-regulating control method, is characterized in that, described method step is:
1. scrape water intermittent time control method: maximum intermittent time is set by software parameter, the interval time aggregate-value that shelves INT switch intermittently adjacent twice (but being not limited only to twice) opened is as scraping water intermittent time value;
2. the stepless speed regulating method of rain shaving electrical machine M rotating speed: it is characterized in that, use the rotor switch of rheostat without gear, or the switch of similar functions, determine motor speed value by its switch value;
3. multi-range speed regulating method arbitrarily: it is characterized in that, with the intermediate value of rain shaving electrical machine M range of speed or approach the numerical value of intermediate value, as the rate of onset value of rain shaving electrical machine M speed governing, be also the rate of onset value that windscreen wiper is scraped water conservancy project operation mode continuously; Taking described rate of onset value as basic point, rain shaving electrical machine M range of speed is divided into two, determines the speed governing step-length of these two scopes, often add a gear of (a subtracting) corresponding liter of step-length rain shaving electrical machine M (falling) speed; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switches (this switch is in open mode before) → open quick shelves II switch → disconnections shelves II switch fast → open grade I switch at a slow speed, be intended to as raising speed with this process action, controller is received after these signal sequences, carries out raising speed control; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switches (this switch is in open mode before) → open intermittently shelves INT switch of intermittently shelves INT switch → disconnections → open grade I switch at a slow speed, be intended to as reduction of speed with this process action, controller is received after these signal sequences, carries out reduction of speed control;
4. relevant safety and emergency method, is characterized in that, the C-E utmost point of described quick shelves II switch and the power switch pipe T of speed control PWM is connected in parallel;
5. new hand's strategy process: it is characterized in that, if described controller ECU receive driver routinely operating standard operate intermittently shelves INT, shelves I and fast when shelves II on-off signal at a slow speed, will allow rain shaving electrical machine M carry out intermittently, at a slow speed and fast by common action.
Owing to having adopted above-mentioned technical method, the present invention has following benefit effect compared with art methods:
1, system implements simple in structure, low cost of manufacture.On hardware, adopt 8 common micro controller systems as real-time intelligent control unit, add a small amount of conventional peripheral component; Can directly use combined switch on former car as master cock, not only provide cost savings, also to bringing great convenience property of operation and agility.
2, reliability is high.Because not needing rain sensor, after can not having this component failure or being blocked by mud or other colloids, scrape water misoperation or out-of-run situation.
3, scrape water good speed adjustment features.Off time and motor speed can choose at random according to rainfall, provide condition, and working stability are smooth-going for reaching optimum matching with rainfall.
4, operation convenience is high.The setting of off time and motor speed and cancellation are easy to left-hand seat and grasp.
5, traveling comfort is high.Suitable off time and scrape water speed, has reduced unnecessary wiper action frequency, the vibration and the wiper noise that while also just having reduced rain shaving electrical machine work, have brought.
6, safe.Suitable off time and scrape water speed, has reduced unnecessary wiper action frequency, has also just reduced wiper and floating rule driver's sight line is disturbed, and driver can more attentively be driven; After controller lost efficacy, rain shaving electrical machine also can retain the control function of maximum speed of revolution.
7, can extend the life-span of rain shaving electrical machine and wiper.Controller is the power switch pipe that PWM speed control is carried out in protection, and its inside has increased the freewheeling circuit of armature, and to eliminate surge high potential, this circuit also can reduce the arc erosion of engine commutator and carbon brush simultaneously; Because having reduced unnecessary wiper action frequency, also can make the life time of motor and wiper be extended in addition.
8, comformability is good.No matter be the rain shaving electrical machine of what specification, hardware is identical substantially, only needs to change the requirement that micro controller system embedded software just can adapt to speed governing.
Brief description of the drawings
Accompanying drawing is electrical schematic diagram of the present invention.
In accompanying drawing, intermittently shelves INT, shelves I, shelves II, power switch pipe T, diode D, controller ECU, speed control PWM, rain shaving electrical machine M fast at a slow speed.Special version: the fast control end pig-tail wire of I (slowly) of rain shaving electrical machine M can not connect the gear switch at a slow speed on combined switch; The fast control end pig-tail wire serial connection of II (soon) power switch pipe T, controls its loop break-make by power switch pipe T, adjusts wide (dutycycle) to control by this power switch pipe T being carried out to pwm pulse, can realize pulsation-free speed governing to motor.
Detailed description of the invention
Describe the present invention below in conjunction with drawings and Examples.
Accompanying drawing in the following describes is only most preferred embodiment of the present invention, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of automobile-used windscreen wiper intelligent speed-regulating control method, driver is according to the sense organ judgement of oneself, by operate three switches (or with on combined switch original intermittence shelves INT switch, at a slow speed shelves I switch, a shelves II switch substitutes fast, below explanation will launch as an example of these three switches example to describe), intelligent controller reads after these on-off signals, it is analyzed, if the signal sequence obtaining is as consistent in what arrange, to control accordingly, the method step described in it is:
1. scrape water intermittent time control method: maximum intermittent time is set by software parameter, the interval time aggregate-value that shelves INT switch intermittently adjacent twice (but being not limited only to twice) opened is as scraping water intermittent time value.Suppose that rainfall is now less, and be a certain definite value arbitrarily, need to take intermittently to scrape the mode of operation of water, intermittent time can be liked to set by driver so: open intermittently gear switch, controller starts timing after receiving this signal, and allow rain shaving electrical machine execution at once scrape hydrodynamic(al) work, then within the time of agreement, driver disconnects intermittently gear switch fast, rain shaving electrical machine executes once to be scraped after hydrodynamic(al) work, it is motionless that wiper will stop at return place, scrape clean glass surface As time goes on, surface area water increases gradually and dim until driver identifies oneself sight line while being affected, driver can open intermittently gear switch (rain shaving electrical machine is carried out and scraped hydrodynamic(al) work) again, hereto, controller stops timing, and the intermittent time that this cumulative hours is approved as driver, controller will carry out intermittence by this time and control.If in timing course, the time overlength (such as being greater than 60 seconds) of accumulative total, thinks that driver does not do the intention of intermittent time control, will stop timing, and to this time zero clearing.If there is variation in rainfall, when driver thinks that intermittent time is improper, first close intermittently gear switch and exit current control at intermittence, then repeat said switch motion above, can set new intermittent time.If controller read less than intermittence gear switch signal time remaining exceed the designated time (such as 1.5 seconds), exit current intermittence and control.
2. the stepless speed regulating method of rain shaving electrical machine M rotating speed: it uses the rotor switch of rheostat without gear, or the switch of similar functions, in voltage (or electric current) signal range of this switch, arbitrary value is with within the scope of electric machine speed regulation, tachometer value is corresponding one by one arbitrarily, when controller reads the optional position signal of this switch, can control and allow motor go work by corresponding rotating speed by PWM, determine motor speed value by its switch value.
3. multi-range speed regulating method arbitrarily: its intermediate value with rain shaving electrical machine M range of speed or approach the numerical value of intermediate value, as the rate of onset value of rain shaving electrical machine M speed governing, is also the rate of onset value that windscreen wiper is scraped water conservancy project operation mode continuously; Taking described rate of onset value as basic point, rain shaving electrical machine M range of speed is divided into two, determines the speed governing step-length of these two scopes, often add a gear of (a subtracting) corresponding liter of step-length rain shaving electrical machine M (falling) speed; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switches (this switch is in open mode before) → open quick shelves II switch → disconnections shelves II switch fast → open grade I switch at a slow speed, be intended to as raising speed with this process action, controller is received after these signal sequences, carries out raising speed control; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switches (this switch is in open mode before) → open intermittently shelves INT switch of intermittently shelves INT switch → disconnections → open grade I switch at a slow speed, be intended to as reduction of speed with this process action, controller is received after these signal sequences, carries out reduction of speed control.
More particularly: set as required multi-range speed governing arbitrarily, first to determine acceptable rain shaving electrical machine minimum speed value V1, determine that duty ratio corresponding is P1%, suppose that motor maximum speed value is V2, duty ratio corresponding is 100%, has so also just determined that the setting range of PWM is between P1%～100%.Can be by V0=(V1+V2 according to the rate of onset value V0(of motor)/2 algorithm obtains, or other admitted values are such as the slow shelves tachometer value of former car), mate and can determine that its corresponding dutycycle is P0% by debugging.Because PWM value and motor speed are not strict linear relationship, divide two sections to process taking V0 as boundary, can allow control algorithm more simpler, control better effects if a little.V0, to being divided into N2 shelves level between V2, V0 is to being divided into N1 shelves grade between V1, is S2%=(100%-P0% so from the hoist dutycycle step-length of speed control system of V0)/N2, be S1%=(P0%-P1% from the dutycycle step-length of V0 landing speed control system)/N1.Raising speed action definition: within the time of agreement, driver completes the quick gear switch of the quick gear switch of following action-disconnect gear switch (this switch is in open mode before) at a slow speed → open → disconnect → open gear switch at a slow speed fast; Reduction of speed action definition: within the time of agreement, driver completes following action fast---disconnect at a slow speed intermittently gear switch → disconnections gear switch at intermittence of gear switch (this switch is in open mode before) → open → open gear switch at a slow speed.Often correctly complete one and rise (falling) quick-action work, controller is read these on-off signals and is analyzed as calculated and meet sequential and time requirement, send out a buzzer and inform that driver's liter (falling) speed sets successfully, simultaneously on PWM value basis before, (PWM value is before greater than P0%, and step value is S2% to add (subtracting) dutycycle step value; Be less than P0%, step value is S1%; Equaling P0%, is S2% while " adding ", is S1% when " subtracting "), and the PWM value of gained is made as to current controlling valu control rain shaving electrical machine, make its rotating speed be able to liter (falling) shelves level.In the time that rain shaving electrical machine rotating speed has reached maximum (little) value, controller is sent out twice buzzer to remind driver.If controller is read to exceed the designated time (such as 1.5 seconds) less than the time remaining of slow gear switch signal, exit the current water speed control of scraping.While regaining slow gear switch signal as controller afterwards, carry out PWM speed governing by dutycycle P0%, rain shaving electrical machine will rotate with tachometer value V0.
4. relevant safety and emergency method, the C-E utmost point of the quick shelves II switch described in it and the power switch pipe T of speed control PWM is connected in parallel.After ensureing that controller ECU contingency lost efficacy, rain shaving electrical machine M also can retain the control function of maximum speed of revolution; Current rain shaving electrical machine M is in slow speed of revolution, and now needs to uprise rotating speed at once, moves raising speed while having little time in time by raising speed, directly allows quick shelves II switch also can obtain maximum speed of revolution in open mode.
5. new hand's strategy process: if the controller ECU described in it receive driver routinely operating standard operate intermittently shelves INT switch, shelves I switch and fast when shelves II on-off signal at a slow speed, will allow rain shaving electrical machine M by common action carry out intermittently, at a slow speed with the mode of operation such as quick.
Claims (1)
1. an automobile-used windscreen wiper intelligent speed-regulating control method, is characterized in that, described method step is:
1. scrape water intermittent time control method: maximum intermittent time is set by software parameter, adjacent twice or twice above interval time aggregate-value of opening of shelves INT switch intermittently as scraping water intermittent time value;
2. the stepless speed regulating method of rain shaving electrical machine M rotating speed: it is characterized in that, use the rotor switch of rheostat without gear, determine motor speed value by its switch value;
3. multi-range speed regulating method arbitrarily: it is characterized in that, with the numerical value of the intermediate value of rain shaving electrical machine M range of speed, as the rate of onset value of rain shaving electrical machine M speed governing, be also the rate of onset value that windscreen wiper is scraped water conservancy project operation mode continuously; Taking described rate of onset value as basic point, rain shaving electrical machine M range of speed is divided into two, determines the speed governing step-length of these two scopes, the corresponding raising speed of step-length rain shaving electrical machine M that often adds deduct or gear of reduction of speed; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switch → open quick shelves II switch → disconnections shelves II switch fast → open grade I switch at a slow speed, be intended to as raising speed with this process action, controller is received after these signal sequences, carries out raising speed control; Within the time of agreement, carry out fast following action: disconnect at a slow speed shelves I switch → open intermittently shelves INT switch of intermittently shelves INT switch → disconnections → open grade I switch at a slow speed, be intended to as reduction of speed with this process action, controller is received after these signal sequences, carries out reduction of speed control;
4. relevant safety and emergency method, is characterized in that, the C-E utmost point of described quick shelves II switch and the power switch pipe T of speed control PWM is connected in parallel;
5. new hand's strategy process: it is characterized in that, if described controller receive driver routinely operating standard operate intermittently shelves INT switch, shelves I switch and fast when shelves II on-off signal at a slow speed, will allow rain shaving electrical machine M carry out intermittently, at a slow speed or fast speed mode of operation by common action.
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| CN201210566638.2A CN103010164B (en) | 2012-12-24 | 2012-12-24 | Intelligent speed-adjusting control method of vehicle wiper |
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| CN201210566638.2A CN103010164B (en) | 2012-12-24 | 2012-12-24 | Intelligent speed-adjusting control method of vehicle wiper |
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| CN103010164B true CN103010164B (en) | 2014-11-05 |
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| CN104309582A (en) * | 2014-11-18 | 2015-01-28 | 北京汽车研究总院有限公司 | Method and system for operating front windscreen wiper |
| US9969357B1 (en) * | 2016-07-27 | 2018-05-15 | GM Global Technology Operations LLC | Vehicle wiper intermittent control |
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|---|---|---|---|---|
| CN2040864U (en) * | 1988-10-31 | 1989-07-12 | 王宏伟 | Dual-regulating type stepless speed controller for electric window-wiper |
| CN2048445U (en) * | 1989-03-23 | 1989-11-29 | 李自广 | Water scraper with electronic time switch in automobile |
| JP2983338B2 (en) * | 1991-07-25 | 1999-11-29 | 富士通テン株式会社 | Wiper control device |
| CN2590814Y (en) * | 2002-12-30 | 2003-12-10 | 陈大永 | Adjustable intermitting device for vehicle wipers |
| CN2774001Y (en) * | 2005-01-25 | 2006-04-19 | 武汉大学 | Automatic stepless speed-adjusting controller of wiper electric motor |
| JP2008201294A (en) * | 2007-02-21 | 2008-09-04 | Tokai Rika Co Ltd | Wiper control device |
| CN101722932A (en) * | 2009-12-03 | 2010-06-09 | 北汽福田汽车股份有限公司 | Wiping frequency adjustable wiper control system |
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2012
- 2012-12-24 CN CN201210566638.2A patent/CN103010164B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040864U (en) * | 1988-10-31 | 1989-07-12 | 王宏伟 | Dual-regulating type stepless speed controller for electric window-wiper |
| CN2048445U (en) * | 1989-03-23 | 1989-11-29 | 李自广 | Water scraper with electronic time switch in automobile |
| JP2983338B2 (en) * | 1991-07-25 | 1999-11-29 | 富士通テン株式会社 | Wiper control device |
| CN2590814Y (en) * | 2002-12-30 | 2003-12-10 | 陈大永 | Adjustable intermitting device for vehicle wipers |
| CN2774001Y (en) * | 2005-01-25 | 2006-04-19 | 武汉大学 | Automatic stepless speed-adjusting controller of wiper electric motor |
| JP2008201294A (en) * | 2007-02-21 | 2008-09-04 | Tokai Rika Co Ltd | Wiper control device |
| CN101722932A (en) * | 2009-12-03 | 2010-06-09 | 北汽福田汽车股份有限公司 | Wiping frequency adjustable wiper control system |
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