CN102602331A - Intelligent braking efficiency factor display device - Google Patents
Intelligent braking efficiency factor display device Download PDFInfo
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- CN102602331A CN102602331A CN2012100644705A CN201210064470A CN102602331A CN 102602331 A CN102602331 A CN 102602331A CN 2012100644705 A CN2012100644705 A CN 2012100644705A CN 201210064470 A CN201210064470 A CN 201210064470A CN 102602331 A CN102602331 A CN 102602331A
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- braking
- rate
- display device
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- signal processing
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Abstract
The invention relates to an intelligent braking efficiency factor display device, which comprises an ABS (anti-locked braking system) wheel speed acquisition unit, a signal processing unit, a single chip microcomputer and display devices, wherein an output port of the ABS wheel speed acquisition unit is connected with an input port of the signal processing unit, an output port of the signal processing unit is connected with an input port of the single chip microcomputer, and an output port of the single chip microcomputer is connected with an input port of each display device. The intelligent braking efficiency factor display device detects speed of automobile tires by the aid of wheel speed sensors of an automotive ABS, adding of extra sensors is omitted, and the device is low in cost, convenient in installation and capable of accurately display braking efficiency factors.
Description
Technical field
The present invention relates to a kind of automotive lamp electro-optical display device, particularly a kind of rate of braking intelligent display device.
Background technology
In recent years, many vehicles install high-mount brake lamp additional near the automobile tail back window glass, and high-mount brake lamp is tending towards variation, personalized, multifunction.The steerman glancing impact, high-mount brake lamp and left and right sides brake lamp are simultaneously bright, and display automobile has got into braking mode.But high-mount brake lamp and common brake lamp all can not show the size of rate of braking, can not react the vehicle rate of braking, can not make steerman understand the braking intention of front steerman, therefore are prone to cause rear-end collision.
In order to obtain braking deceleration, common rate of braking read out instrument comprises one or more sensors usually at present, causes at present common rate of braking read out instrument cost higher, is difficult to promote.
Summary of the invention
Technical matters to be solved: for solving the existing higher defective of rate of braking read out instrument cost, the present invention provides a kind of rate of braking intelligent display device.
Technical scheme: for solving the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of rate of braking intelligent display device; Comprise that ABS takes turns fast collecting unit, signal processing unit, micro controller system, read out instrument; The delivery port that said ABS takes turns fast collecting unit is connected with the input port of signal processing unit; The delivery port of said signal processing unit is connected with the input port of micro controller system, and the delivery port of said micro controller system is connected with the input port of read out instrument.
A kind of improvement as rate of braking intelligent display device of the present invention; Said signal processing unit comprises limiter circuit, filter circuit, comparison shaping circuit; The input port of said limiter circuit is the input port of signal processing unit; The delivery port of said limiter circuit is connected with the input port of filter circuit, and the delivery port of said filter circuit is connected with the input port that compares shaping circuit, and the said relatively delivery port of shaping circuit is the delivery port of signal processing unit.
Another kind as rate of braking intelligent display device of the present invention improves, and said read out instrument is a light emitting diode, and along with rate of braking increases, the number that light-emitting diode is lighted is therefrom asked to both sides and increased progressively.
Further improvement as rate of braking intelligent display device of the present invention; Said light emitting diode is 16, and when rate of braking was 0.08g, middle two light-emitting diodes were lighted; The every increase of rate of braking 0.08g; The light emitting diode that light the centre increases progressively 2, and when rate of braking 0.64g was above, light emitting diode was all lighted.
Another kind as rate of braking intelligent display device of the present invention improves, and also comprises the turn sign collecting unit, and the delivery port of said turn sign collecting unit is connected with the input port of micro controller system.
Beneficial effect: the wheel speed sensors that the present invention has utilized automobile ABS system to carry is measured the speed of motor tire; Through to take turns speed processing; Calculate vehicle body glancing impact deceleration/decel, show according to the car deceleration degree control read out instrument that calculates, need not be extra set up sensor; Practice thrift cost, be suitable for technical application.
In addition, the present invention adds a turn sign collecting unit in the rate of braking intelligent display device, make this read out instrument show more information of vehicles, makes other steermans understand the rate of braking and the sense of motion of preceding vehicle, helps traffic safety.
Description of drawings
Fig. 1 is each module map of rate of braking intelligent display device;
Fig. 2 is the rate of braking intelligent display device; PAD00, PAD01, PAD02, PAD03 are respectively the near front wheel speed signaling interface, off front wheel speed signaling interface, left rear wheel speed signaling interface, off hind wheel speed signaling interface; PE0, PE1 are respectively the turn sign interface; PA0, PA1, PA2, PA3, PA4, PA5, PA6, PA7, PB0, PB1, PB2, PB3, PB4, PB5, PB6, PB7 are the light emitting diode control interface, respectively connect a light emitting diode;
Fig. 3 is a signal processing unit, and Vi is the wheel speed sensors output signal, and V1 is the output signal of limiter circuit, and V2 is the filter circuit output signal;
Fig. 4 is a limiter circuit; D1 is a zener diode; R1 is a resistance;
Fig. 5 is a low-pass filter circuit; R2, R3 are resistance, and C1, C2 are electric capacity, and U2 is an op amp;
Fig. 6 is the shaping comparator circuit; R5, R6 are resistance, and U3 is an op amp;
Fig. 7 is a read out instrument, and L1, L2, L3, L4, L5, L6, L7, R1, R2, R3, R4, R5, R6, R7 are light emitting diode.
The specific embodiment
Embodiment 1:
A kind of rate of braking intelligent display device; Comprise that ABS takes turns fast collecting unit, signal processing unit, turn sign collecting unit, micro controller system, read out instrument; The delivery port that ABS takes turns fast collecting unit is connected with the input port of signal processing module, and the delivery port of signal processing module is connected with the input port of micro controller system, and the delivery port of turn sign collecting unit is connected with the input port of micro controller system; The delivery port of micro controller system is connected with the input port of read out instrument, sees Fig. 1 and Fig. 2.
ABS takes turns fast collecting unit and gathers special quality wheel rapid pulse towards signal from the ABS wheel speed sensors of each wheel, and each wheel connects an ABS respectively and takes turns fast collecting unit, and each ABS takes turns fast collecting unit and connects a signal processing unit respectively.
The turn sign collecting unit is gathered the pole changer signal, and with the turn sign input micro controller system of gathering.
Signal processing unit comprises limiter circuit, filter circuit, comparison shaping circuit, sees Fig. 3.Said limiter circuit is seen Fig. 4, and below 5V, negative half period makes it be output as 0.6V with the amplitude limitation of the positive half cycle of wheel speed sensors output signal Vi, and with gained signal V1 input low-pass filter circuit.Said low-pass filter circuit is seen Fig. 5, and the interfering signal among the output signal V1 of inhibition limiter circuit is selected the actv. wheel speed signal, and with gained signal V2 input shaper comparator circuit.Said shaping comparator circuit is seen Fig. 6, and filter circuit output signal V2 and comparative voltage are relatively exported square-wave signal in the back.The sine wave signal that signal processing unit is taken turns fast collecting unit collection with ABS converts the square-wave signal of same frequency into, the rotating speed that frequency through detecting square-wave signal or cycle are calculated wheel, and the vehicle wheel rotational speed signal is input to micro controller system.
Micro controller system adopts the MC9S12DP256 of Motorola; Thereby micro controller system is measured towards signal the wheel rapid pulse and is calculated the wheel speed that obtains vehicle; The wheel speed that will obtain simultaneously adopts the slope method to handle the acceleration/accel that draws wheel; Promptly calculate current certain constantly before the fast slope of a curve of N continuous point wheel, with this slope value as the wheel angular acceleration of working as this moment.Adopting uses the same method obtains the deceleration/decel of four wheels; Adopt mean value method well known in the art to draw the mean deceleration of four wheels; The utilization mean deceleration multiply by the deceleration/decel that radius of wheel can draw the glancing impact car body, according to the size control read out instrument demonstration of car body deceleration/decel.In addition, micro controller system shows according to turn sign control read out instrument.
Read out instrument is 16 light emitting diodes, sees Fig. 7 and table 1, when rate of braking is 0.08g; Middle two light-emitting diodes are lighted, the every increase of rate of braking 0.08g, and the light emitting diode that light the centre increases progressively 2; Rate of braking is when 0.64g is above, and light emitting diode is all lighted.When turn sign was left rotaring signal, left side light emitting diode L1, L2, L3, L4, L5, L6, L7, L8 were bright entirely, and when turn sign was right turn signal, the right light emitting diode R1, R2, R3, R4, R5, R6, R7, R8 were bright entirely.
The display mode table of table 1 rate of braking
| Rate of braking | The light emitting diode lighting mode |
| 0.08g | L1、R1 |
| 0.16g | L1、L2、R1、R2 |
| 0.24g | L1、L2、L3、R1、R2、R3 |
| 0.32g | L1、L2、L3、L4、R1、R2、R3、R4 |
| 0.40g | L1、L2、L3、L4、L5、R1、R2、R3、R4、R5 |
| 0.56g | L1、L2、L3、L4、L5、L6、L7、R1、R2、R3、R4、R5、R6、R7 |
| ≥0.64g | L1、L2、L3、L4、L5、L6、L7、L8、R1、R2、R3、R4、R5、R6、R7、R8 |
Claims (5)
1. rate of braking intelligent display device; It is characterized in that: comprise that ABS takes turns fast collecting unit, signal processing unit, micro controller system, read out instrument; The delivery port that said ABS takes turns fast collecting unit is connected with the input port of signal processing unit; The delivery port of said signal processing unit is connected with the input port of micro controller system, and the delivery port of said micro controller system is connected with the input port of read out instrument.
2. a kind of rate of braking intelligent display device according to claim 1; It is characterized in that: said signal processing unit comprises limiter circuit, filter circuit, comparison shaping circuit; The input port of said limiter circuit is the input port of signal processing unit; The delivery port of said limiter circuit is connected with the input port of filter circuit, and the delivery port of said filter circuit is connected with the input port that compares shaping circuit, and the said relatively delivery port of shaping circuit is the delivery port of signal processing unit.
3. a kind of rate of braking intelligent display device according to claim 1 is characterized in that: said read out instrument is a light emitting diode, and along with rate of braking increases, the number that light-emitting diode is lighted increases progressively to both sides from the centre.
4. a kind of rate of braking intelligent display device according to claim 3; It is characterized in that: said light emitting diode is 16, and when rate of braking was 0.08g, middle two light-emitting diodes were lighted; The every increase of rate of braking 0.08g; The light emitting diode that light the centre increases progressively 2, and when rate of braking 0.64g was above, light emitting diode was all lighted.
5. according to each described a kind of rate of braking intelligent display device among the claim 1-4, it is characterized in that: also comprise the turn sign collecting unit, the delivery port of said turn sign collecting unit is connected with the input port of micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100644705A CN102602331A (en) | 2012-03-13 | 2012-03-13 | Intelligent braking efficiency factor display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100644705A CN102602331A (en) | 2012-03-13 | 2012-03-13 | Intelligent braking efficiency factor display device |
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| Publication Number | Publication Date |
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| CN102602331A true CN102602331A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100644705A Withdrawn CN102602331A (en) | 2012-03-13 | 2012-03-13 | Intelligent braking efficiency factor display device |
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| Country | Link |
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| CN (1) | CN102602331A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249647A (en) * | 2013-06-27 | 2014-12-31 | 北汽福田汽车股份有限公司 | Rear-end collision preventing braking safety aided indication system and method |
| CN105150920A (en) * | 2015-10-09 | 2015-12-16 | 刘东昌 | Automobile dynamic display method and high-position braking lamp system based on automobile dynamic display method |
| CN105774782A (en) * | 2014-12-24 | 2016-07-20 | 深圳艾科创新微电子有限公司 | Wheel speed sensing signal processing circuit and automobile ABS (Anti-lock Braking System) |
Citations (7)
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| US4868542A (en) * | 1988-08-22 | 1989-09-19 | Thompson Michael L | Automotive brake light and communication system |
| JPH1130971A (en) * | 1997-05-15 | 1999-02-02 | Matsushita Electric Ind Co Ltd | Display signal processor and led display system |
| CN1986286A (en) * | 2005-12-23 | 2007-06-27 | 宋强 | Brake lamp |
| CN201172389Y (en) * | 2008-01-26 | 2008-12-31 | 雷强 | Automobile brake force indicating device |
| CN201201550Y (en) * | 2008-05-09 | 2009-03-04 | 长安大学 | Brake signal display device based on automobile ABS system |
| CN201970918U (en) * | 2010-12-31 | 2011-09-14 | 赵阳 | High-mounted stoplight system |
| CN202541413U (en) * | 2012-03-13 | 2012-11-21 | 刘浩 | Braking intensity intelligent display device |
-
2012
- 2012-03-13 CN CN2012100644705A patent/CN102602331A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4868542A (en) * | 1988-08-22 | 1989-09-19 | Thompson Michael L | Automotive brake light and communication system |
| JPH1130971A (en) * | 1997-05-15 | 1999-02-02 | Matsushita Electric Ind Co Ltd | Display signal processor and led display system |
| CN1986286A (en) * | 2005-12-23 | 2007-06-27 | 宋强 | Brake lamp |
| CN201172389Y (en) * | 2008-01-26 | 2008-12-31 | 雷强 | Automobile brake force indicating device |
| CN201201550Y (en) * | 2008-05-09 | 2009-03-04 | 长安大学 | Brake signal display device based on automobile ABS system |
| CN201970918U (en) * | 2010-12-31 | 2011-09-14 | 赵阳 | High-mounted stoplight system |
| CN202541413U (en) * | 2012-03-13 | 2012-11-21 | 刘浩 | Braking intensity intelligent display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249647A (en) * | 2013-06-27 | 2014-12-31 | 北汽福田汽车股份有限公司 | Rear-end collision preventing braking safety aided indication system and method |
| CN105774782A (en) * | 2014-12-24 | 2016-07-20 | 深圳艾科创新微电子有限公司 | Wheel speed sensing signal processing circuit and automobile ABS (Anti-lock Braking System) |
| CN105150920A (en) * | 2015-10-09 | 2015-12-16 | 刘东昌 | Automobile dynamic display method and high-position braking lamp system based on automobile dynamic display method |
| CN105150920B (en) * | 2015-10-09 | 2017-11-14 | 刘东昌 | A kind of automobile dynamic display method and the high-mount brake lamp system based on this method |
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Application publication date: 20120725 |