CN202448946U - Wiper blade control system - Google Patents
Wiper blade control system Download PDFInfo
- Publication number
- CN202448946U CN202448946U CN2011205601957U CN201120560195U CN202448946U CN 202448946 U CN202448946 U CN 202448946U CN 2011205601957 U CN2011205601957 U CN 2011205601957U CN 201120560195 U CN201120560195 U CN 201120560195U CN 202448946 U CN202448946 U CN 202448946U
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- China
- Prior art keywords
- windscreen wiper
- rain
- wiper blade
- sensors
- controlled system
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Abstract
The utility model provides a wiper blade control system. The system comprises at least two sensors and a wiper blade control unit, wherein the two sensors are respectively arranged on the surface of a windshield of a vehicle and is used for sensing raindrops, the wiper blade control unit is connected with a wiper blade driving device and used for outputting control signals which control the wiper blade driving device based on signals which are output by the two sensors respectively. According to the wiper blade control system, the wiper blade is controlled based on the signals which are output by the two sensors respectively, so that the problem of malfunction of the wiper blade, which is caused by temperature changes of an existing rain sensor is solved effectively.
Description
Technical field
The utility model relates to the control field, particularly relates to a kind of rain blowing controlled system.
Background technology
In the process of rainy day steering vehicle, chaufeur often need come manual regulation windscreen wiper speed according to the rainfall size, has so just reduced the attention rate to road conditions, thereby than being easier to cause traffic accident.And adopt the automatic wiper control system just can avoid chaufeur manually to operate the trouble of windscreen wiper, and then significantly reduced the probability that traffic accident takes place.Therefore, lot of domestic and international motor plant commercial city substitutes traditional mechanical formula windscreen wiper system, and has obtained good widespread use in development automatic wiper control system at present.
Automatic wiper control system in the market generally all adopts raindrop formula sensor, and its principle of work is following:
Rain sensor is attached on the shield glass; This rain sensor utilizes infrared transmitter to launch infrared ray; Refract to the infrared remote receiver that this rain sensor comprises through Windshield; Send into control module after the signal conversion unit that comprises of rain sensor infrared light that this infrared remote receiver is received converts electric signal into subsequently; The difference of the electric signal that rain sensor is exported during with no rain according to the electric signal of current reception by this control module judges whether the size of rainy and rainfall etc., thereby windscreen wiper is given corresponding control.As shown in Figure 1, it is existing rain blowing controlled system scheme drawing.Wherein, Rain sensor is affixed on windscreen surface; The infrared pickoff of rain sensor is launched infrared light based on the impulse singla after modulating; The light that infrared receiving tube will receive is sent into the amplifier amplification after converting electric signal into, handles through sending into microprocessor after bandpass filtering and the data filtering more subsequently, so that determine whether to need to start windscreen wiper.The microprocessor of this rain blowing controlled system mainly is to confirm rainy or no rain through the difference of the signal of rain sensor output.Shown in Fig. 2 a, when no rain, the infrared light of infrared transmitter 11 emissions of rain sensor 1 is through after the refraction of Windshield 2; Received by infrared remote receiver 12, when rainy, shown in Fig. 2 b; Raindrop 3 are dropped in the surface of Windshield 2, owing to receive the influence of raindrop 3, have changed the reflection angle of Windshield 2; Weaken when making infrared remote receiver 12 received light intensities not have rain relatively; The intensity of the electric signal of rain sensor output also weakens thus, and therefore, microprocessor can confirm it is rainy state based on the variation of the electric signal of rain sensor output.
Yet; The rain blowing controlled system that windscreen wiper is controlled in the variation based on the electric signal of single rain sensor output in the market is in no rain; Run into the phenomenon of error starting through regular meeting; Because rain sensor in the course of the work,, make the temperature of rain sensor enclosure interior constantly rise because the continuous converting electrical energy of infrared transmitter is luminous energy and heat energy.So not only make the light quantity of infrared transmitter emission to change along with temperature traverse, and infrared remote receiver is when detecting the reflected light rays of same light quantity, the analog signal values of infrared remote receiver output also can change along with temperature traverse.So; After continuous working a period of time, microprocessor just can't judge, from the variation of the analog quantity of rain sensor output; Be because variation of ambient temperature causes; Still because raindrop are attached to causing that the result will cause microprocessor when no rain, also can send actuation signal on the reflector space of front windshield, thereby cause the misoperation of windscreen wiper.
The utility model content
The shortcoming of prior art in view of the above, the purpose of the utility model is to provide a kind of rain blowing controlled system, is used for solving prior art causes the windscreen wiper misoperation because of the rain sensor temperature traverse problem.
For realizing above-mentioned purpose and other relevant purposes, the utility model provides a kind of rain blowing controlled system, and it comprises at least:
Be separately positioned on vehicle windscreen surface and be used for the two sensors of sensing raindrop; And
The windscreen wiper control unit is connected with the windscreen wiper actuating device of said vehicle, is used for the signal exported separately based on said two sensors, exports the control signal of the said windscreen wiper actuating device of control.
Preferably, said two sensors is separately positioned in the surperficial left-half zone of said vehicle windscreen and in the right half part zone; Perhaps be separately positioned in the surperficial the first half zone of said vehicle windscreen and in the latter half zone.
As stated, the rain blowing controlled system of the utility model has following beneficial effect: the problem that can effectively avoid causing because of the rain sensor temperature traverse windscreen wiper misoperation.
Description of drawings
Fig. 1 is shown as rain blowing controlled system scheme drawing in the prior art.
The IR that Fig. 2 a and 2b are shown as rain blowing controlled system in the prior art is at no rain and the reflection scheme drawing when rainy.
Fig. 3 is shown as the rain blowing controlled system scheme drawing of the utility model.
The element numbers explanation
1 rain sensor
11 infrared transmitters
12 infrared remote receivers
2 Windshield
3 raindrop
4 rain blowing controlled systems
41,42 sensors
43 windscreen wiper control units
51 Windshield
52 windscreen wiper actuating devices
The specific embodiment
Below through the embodiment of specific instantiation explanation the utility model, those skilled in the art can be understood other advantages and the effect of the utility model easily by the content that this specification sheets disclosed.The utility model can also be implemented or use through the other different specific embodiment, and each item details in this specification sheets also can be carried out various modifications or change based on different viewpoints and application under the spirit that does not deviate from the utility model.
See also Fig. 3.Need to prove; The diagram that is provided in the present embodiment is only explained the basic conception of the utility model in a schematic way; Satisfy only show in graphic with the utility model in relevant assembly but not component count, shape and plotted when implementing according to reality; Kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement, and its assembly layout kenel also maybe be more complicated.
As shown in the figure, the utility model provides a kind of rain blowing controlled system.Said rain blowing controlled system 4 comprises two sensors 41,42 and windscreen wiper control unit 43.
Said sensor 41,42 is separately positioned on vehicle windscreen 51 surfaces, and all is used for the sensing raindrop.
Preferably, sensor 41,42 all adopts and comprises the sensor based on infrared emission and reception, for example, and rain sensor etc.Wherein, Sensor 41,42 can be separately positioned on any diverse location on vehicle windscreen surface; Preferably, one among both are arranged in the left-half zone on vehicle windscreen surface, another person is arranged in the surperficial right half part zone of vehicle windscreen; In the latter half zone that perhaps one in the sensor 41,42 is arranged in the surperficial the first half zone of vehicle windscreen, another person is arranged on the vehicle windscreen surface etc., so that both each self-inductance measurements drop on the raindrop on vehicle windscreen surface at random.
Said windscreen wiper control unit 43 is connected with the windscreen wiper actuating device 52 of said vehicle, is used for the signal exported separately based on said two sensors 41 and 42, exports the control signal of the said windscreen wiper actuating device 52 of control.
Particularly, whether the difference of the signal exported separately based on said two sensors 41 and 42 of said windscreen wiper control unit 43 surpasses predetermined threshold and determines whether to export the control signal that starts said windscreen wiper actuating device 52; Preferably; The difference of the signal that said windscreen wiper control unit 43 is exported based on said two sensors 41 and 42 earlier separately confirms to comprise said difference person in a plurality of preset ranges; And confirm to start the intensity of the control signal of said windscreen wiper actuating device 52 based on determined preset range, so that said windscreen wiper actuating device 52 makes windscreen wiper move with corresponding speed based on the intensity of this control signal.
For example, a plurality of preset ranges comprise [0,0.2], (0.2; 0.5], (0.5,0.8], and (0.8,1.0]; Said windscreen wiper control unit 43 is 0.1 based on the difference of the signal that said two sensors 41 and 42 is exported separately, confirms that preset range [0,0.2] comprises this difference 0.1; And then the intensity that confirm to start the control signal of said windscreen wiper actuating device 52 is 0, and thus, said windscreen wiper actuating device 52 does not start windscreen wiper.
Again for example, a plurality of preset ranges comprise [0,0.2], (0.2; 0.5], (0.5,0.8], and (0.8,1.0]; Said windscreen wiper control unit 43 is 0.6 based on the difference of the signal that said two sensors 41 and 42 is exported separately, confirm preset range (0.5,0.8] comprise this difference 0.6; And then the intensity that confirm to start the control signal of said windscreen wiper actuating device 52 is 1, and thus, said windscreen wiper actuating device 52 is 1 to drive windscreen wiper and move with corresponding speed based on the intensity of control signal.
As a kind of optimal way, said windscreen wiper control unit 43 comprises microprocessor.
In sum; The utility model and existing different being of mode of judging rainfall according to the size of infrared ray loss rate: the utility model according to two independently the difference of the signal exported separately of sensor judge rainfall because, in the actual environment; If rain; The position that raindrop drop on vehicle windscreen is a ccasual, thus always there is a sensor to sense raindrop earlier, at this moment; Sense earlier raindrop sensor output signal will and the signal of another sensor output between there are differences, can confirm rainy based on this difference; And when two independently sensor separately because work long hours when causing self temperature traverse; The signal of exporting separately because of the temperature effect two sensors all can rise or reduce; The difference of the signal of two sensors output remains unchanged basically thus, so just can avoid the existing problem that causes the windscreen wiper misoperation that changes because of sensor temperature.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
The foregoing description is the principle and the effect thereof of illustrative the utility model only, but not is used to limit the utility model.Any be familiar with this technological personage all can be under the spirit and category of the utility model, the foregoing description is modified or is changed.Therefore, have common knowledge the knowledgeable under such as in the technical field, must contain by the claim of the utility model not breaking away from all equivalence modification or changes that spirit that the utility model discloses and technological thought are accomplished down.
Claims (5)
1. a rain blowing controlled system is characterized in that, said rain blowing controlled system comprises at least:
Be separately positioned on vehicle windscreen surface and be used for the two sensors of sensing raindrop;
The windscreen wiper control unit is connected with the windscreen wiper actuating device of said vehicle, based on the signal that said two sensors is exported separately, exports the control signal of the said windscreen wiper actuating device of control.
2. rain blowing controlled system according to claim 1 is characterized in that: sensor comprises the sensor based on infrared emission and reception.
3. rain blowing controlled system according to claim 1 and 2 is characterized in that: said two sensors is separately positioned in the surperficial left-half zone of said vehicle windscreen and in the right half part zone.
4. rain blowing controlled system according to claim 1 and 2 is characterized in that: said two sensors is separately positioned in the surperficial the first half zone of said vehicle windscreen and in the latter half zone.
5. rain blowing controlled system according to claim 1 is characterized in that: said windscreen wiper control unit comprises microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601957U CN202448946U (en) | 2011-12-28 | 2011-12-28 | Wiper blade control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601957U CN202448946U (en) | 2011-12-28 | 2011-12-28 | Wiper blade control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448946U true CN202448946U (en) | 2012-09-26 |
Family
ID=46864834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205601957U Expired - Lifetime CN202448946U (en) | 2011-12-28 | 2011-12-28 | Wiper blade control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202448946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183006A (en) * | 2011-12-28 | 2013-07-03 | 上海英恒电子有限公司 | Control system for controlling windscreen wiper on basis of sensors |
| CN104360420A (en) * | 2014-12-08 | 2015-02-18 | 北京经纬恒润科技有限公司 | Method for detecting interference signal of sensor and automotive rainfall amount illumination sensor |
-
2011
- 2011-12-28 CN CN2011205601957U patent/CN202448946U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183006A (en) * | 2011-12-28 | 2013-07-03 | 上海英恒电子有限公司 | Control system for controlling windscreen wiper on basis of sensors |
| CN103183006B (en) * | 2011-12-28 | 2015-05-13 | 上海英恒电子有限公司 | Control system for controlling windscreen wiper on basis of sensors |
| CN104360420A (en) * | 2014-12-08 | 2015-02-18 | 北京经纬恒润科技有限公司 | Method for detecting interference signal of sensor and automotive rainfall amount illumination sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Wiping frequency adjustable wiper control system Effective date of registration: 20131213 Granted publication date: 20120926 Pledgee: Bank of Shanghai Limited by Share Ltd Pudong branch Pledgor: Shanghai Yingheng Electronic Co., Ltd. Registration number: 2013310000085 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190305 Granted publication date: 20120926 Pledgee: Bank of Shanghai Limited by Share Ltd Pudong branch Pledgor: Shanghai Yingheng Electronic Co., Ltd. Registration number: 2013310000085 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |