CN201201550Y - Brake signal display device based on automobile ABS system - Google Patents
Brake signal display device based on automobile ABS system Download PDFInfo
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- CN201201550Y CN201201550Y CNU2008200290729U CN200820029072U CN201201550Y CN 201201550 Y CN201201550 Y CN 201201550Y CN U2008200290729 U CNU2008200290729 U CN U2008200290729U CN 200820029072 U CN200820029072 U CN 200820029072U CN 201201550 Y CN201201550 Y CN 201201550Y
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- automobile
- wheel speed
- brake
- abs
- abs system
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Abstract
The utility model relates to a vehicle brake signal display device, and discloses a brake signal display device based on an automobile ABS system. The brake signal display device comprises a high position stop lamp, an ABS wheel speed acquisition unit, a turn signal acquisition unit and a sighlechip, wherein the high position stop lamp is arranged close to the top of a trunk of an automobile, and consists of left and right small lamp groups which are arranged transversely; the ABS wheel speed acquisition unit acquires wheel speed information through the automobile ABS system; the turn signal acquisition unit acquires turn signals of the automobile; and the singlechip receives the wheel speed information and turn signals of the automobile, and controls the opening or closing of the left and right small lamp groups of the high position stop lamp. The brake signal display device intelligently displays emergency degree of the brake according to the number of the small lamps turned on of the high position stop lamp, and displays the turning of the automobile through alternative opening of the left or right small lamp group of the high position stop lamp.
Description
Technical field
The utility model relates to the vehicle brake signal display apparatus, relates in particular to a kind of brake signal read out instrument based on automobile ABS system.
Background technology
At the development of automobile initial stage, quantity is few, the speed of a motor vehicle is low owing to get on the car in the road, after the back vehicle drivers is seen the preceding vehicle drag, there is the enough time to take corresponding measure, brake taillight at that time and played very large effect really, saved millions upon millions of people's life, and this mode is leveraged to the present always.But, along with being doubled and redoubled of car owning amount, the significantly improving of the speed of a motor vehicle, the dwindling of distance between car and the car still prolonged with two braking taillights signal speed informations, and quantity of information is nowhere near.At present increase day by day and stops up on the serious day by day road at vehicle, the rear-end collision accident is more and more, and the staggered situation of Pedestrians and vehicles is also complicated more on the crossing, and the pedestrian of automobile back and vehicle can't be known driver's the judgement and the disposition of braking.In order to make automobile more clearly show driver's brake under steam, improve other pedestrians and vehicle order of accuarcy, need on the basis of original technology, improve or increase the indicating device of demonstration vehicle brake degree the taillight of automobile to its judgement.
In recent years, some vehicle installs brake lamp additional near the automobile tail back window glass, be commonly referred to as high-mount brake lamp, and it is in parallel with left and right sides drag lamp.When the chaufeur drag, high-mount brake lamp and left and right sides drag lamp are lighted simultaneously, and display automobile has entered braking state.But this high-mount brake lamp can't show the degree of brake, can not indicate emergency brake or slowly brake, and the chaufeur of back can not be understood the brake intention of front driver, therefore easily causes rear-end collision.In addition, the present high-mount brake lamp brake information of single display vehicle only.
Summary of the invention
Can not show the brake emergency degree at existing High-Position Automotive Brake Lights, the shortcoming that can not show direction information, it is a kind of based on automobile ABS system brake signal read out instrument that the purpose of this utility model is to provide, the brake degree that it can display automobile, direction information that again can the intelligent display automobile.
To achieve these goals, the technical scheme that the utility model adopted is as follows:
A kind of brake read out instrument based on automobile ABS system comprises high-mount brake lamp, and described high-mount brake lamp is provided with near the automobile trunk top, is made up of transversely arranged left and right lampet group, it is characterized in that, also comprises:
ABS wheel speed collecting unit, the wheel speed information of gathering automobile by automobile ABS system;
The turn sign collecting unit, the left and right sides turn sign of collection automobile;
One-chip computer receives the wheel speed information and the turn sign of automobile, the unlatching of the left and right lampet group of control high-mount brake lamp or close.
Further characteristics of the present utility model are:
Described ABS wheel speed collecting unit comprises wheel speed sensors, filter, signal amplifier, the shaping comparator of serial connection successively, wheel speed sensors produces the pseudo sine wave that frequency is proportional to vehicle wheel rotational speed, behind this pseudo sine wave process filter, the signal amplifier, generate wheel speed impulse singla, i.e. wheel speed information by the shaping comparator.
Described lampet adopts light-emitting diode.
The urgency level that the utility model comes intelligent display to brake with the unlatching quantity of high-mount brake lamp lampet turning to of display automobile with the left side of high-mount brake lamp or the alternately unlatching of right lampet group.The chaufeur of back can be judged the brake emergency degree of automobile clearly according to above information, and it is single to have overcome brake lamp demonstration in the past, can not indicate the shortcoming of brake emergency degree, thereby actv. is avoided rear-end collision; While is turning to of display automobile clearly, gives chaufeur dual reminding turning when turning to, and improved driving safety.The utility model is simple in structure, has utilized the wheel speed sensors of automobile ABS system, need not be extra set up sensor, saved cost.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model ABS wheel speed collecting unit;
Fig. 3 is the arrangement plan of the utility model high-mount brake lamp;
The physical circuit connection diagram of Fig. 4 the utility model embodiment.
The specific embodiment
With reference to shown in Figure 1, the utility model comprises, ABS wheel speed collecting unit, the wheel speed information of gathering automobile by automobile ABS system; The turn sign collecting unit, the turn sign of collection automobile; High-mount brake lamp is provided with near the automobile trunk top, is made up of transversely arranged left and right lampet group; One-chip computer receives the wheel speed information and the turn sign of automobile, the unlatching of the left and right lampet group of control high-mount brake lamp or close.When braking automobile did not turn to, the part lampet of the left and right lampet group of high-mount brake lamp symmetry was opened, and it is anxious more to brake, and it is many more to open lampet; When the automobile left steering, the left lampet group of high-mount brake lamp is alternately opened; When the automobile right steering, the right lampet group of high-mount brake lamp is alternately opened; When the braking automobile right steering, the right lampet group of high-mount brake lamp is alternately opened, and left lampet group part lampet is opened, and it is anxious more to brake, and left lampet is opened many more; When the braking automobile left steering, the left lampet group of high-mount brake lamp is alternately opened, and right lampet group part lampet is opened, and it is anxious more to brake, and right lampet is opened many more.
With reference to Fig. 2, ABS wheel speed collecting unit, direction according to the signal transmission comprises successively, the ABS wheel speed sensors of vehicle wheel rotational speed when being used to gather brake, be used for filter filtering, be used to carry out signal amplifying signal amplifier, be used to produce the shaping comparator of wheel speed impulse singla, the wheel speed impulse singla is a wheel speed information, offers one-chip computer.Signal conditioning is specially: when automobile enters braking state, the ABS wheel speed sensors produces the pseudo sine wave that a series of frequencies are directly proportional with wheel speed, pseudo sine wave is sent to filter, HF noise signal through in the filtering link filtered signal is sent to signal amplifier then, through the amplification of amplifier, enter the shaping comparator at last and carry out the arrangement of waveform, the shaping link increases the amplitude of wheel speed information, obtains special quality wheel speed impulse singla, sends one-chip computer to and handles.One-chip computer preferably adopts the MC9S12DP256 model of Motorola, and described one-chip computer is provided with A/D conversion port and I/O port, and special quality wheel speed impulse singla is sent to one-chip computer by the A/D conversion port.Thereby one-chip computer is measured the wheel speed impulse singla and is calculated the wheel speed that obtains vehicle, simultaneously the certain algorithm process of wheel speed utilization that obtains is drawn the acceleration/accel of wheel.For example, can adopt direct differentiation method, linear fitting (slope method), parabola fitting process and five point interpolation method of derivation, the utility model preferentially adopts the slope method, promptly (calculate current certain constantly former N continuous point wheel speed slope of a curve) with the wheel angular acceleration of this slope value as current time.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 car body when braking, and controls the unlatching number of high-mount brake lamp lampet according to the size of car body deceleration/decel.
With reference to shown in Figure 3, high-mount brake lamp is provided with near the automobile trunk top, is made up of transversely arranged left and right lampet group, and lampet is arranged in order and is L8, L7, L6, L5, L4, L3, L2, L1, R1, R2, R3, R4, R5, R6, R7, R8.Described lampet preferably adopts light-emitting diode, and lampet provides power supply by automotive battery, the open and close of the I/O port controlling lampet of one-chip computer.
With reference to Fig. 4, one-chip computer of the present utility model adopts the MC9S12DP256 model micro controller system of Motorola, and+5V power supply is connected with VDDA, the VDDR of micro controller system respectively, and VSSA, VSSR are connected with ground terminal.Wheel speed sensors and signal processing module are formed ABS wheel speed collecting unit, and signal processing module is finished filtering, amplification, the shaping feature of wheel speed sensors measurement signal.The measurement signal of left front, right front, left back, off hind wheel speed sensors is respectively through PAD00, PAD01, PAD02, the PAD03 pin of input micro controller system behind the signal processing module.The direction information collecting unit is gathered vehicle right and left steering arm signal respectively, and left and right turn sign is imported PE0, the PE1 pin of micro controller system respectively.Micro controller system uses 16 I/O output port control lampets, and wherein PA0......PA7 controls the L1......L8 of left lampet group; PB0......PB7 controls the R1......R8 of right lampet group.With the PA0 output port is No. one output circuit of example explanation micro controller system, the PA0 output port is connected with the base stage of aerotron by resistance r1, the grounded emitter of aerotron, the collecting electrode of aerotron is connected the automobile storage battery that the 12V power supply is got by light-emitting diode (being lampet L1), resistance r2 with the 12V power supply; When the PA0 output port is high level, the aerotron conducting, light-emitting diode (being lampet L1) is luminous, on the contrary light-emitting diode extinguishes.
With reference to Fig. 3, Fig. 4, the working process of concrete enforcement of the present utility model is described in further detail.One-chip computer is gathered wheel speed signal and turn sign, and the information of 16 light-emitting diodes of 16 I/O port controlling of output shows.
When automobile only braked, one-chip computer was as follows to the control of light-emitting diode:
(1) deceleration/decel when automobile reaches 0.08g, L1, and R1 is bright;
(2) deceleration/decel when automobile reaches 0.16g, L1, and L2, R1, R2 is bright;
(3) deceleration/decel when automobile reaches 0.24g, L1, and L2, L3, R1, R2, R3 is bright;
(4) deceleration/decel when automobile reaches 0.32g, L1, and L2, L3, L4, R1, R2, R3, R4 is bright;
(5) deceleration/decel when automobile reaches 0.40g, L1, and L2, L3, L4, L5, R1, R2, R3, R4, R5 is bright;
(6) deceleration/decel when automobile reaches 0.48g, L1, and L2, L3, L4, L5, L6, R1, R2, R3, R4, R5, R6 is bright;
(7) deceleration/decel when automobile reaches 0.48g, L1, and L2, L3, L4, L5, L6, R1, R2, R3, R4, R5, R6R7 is bright;
(8) deceleration/decel when automobile reaches 0.64g, L1, and L2, L3, L4, L5, L6, L7, L8, R1, R2, R3, R4, R5, R6, R7, R8 is bright.
When automobile entered left steering, one-chip computer was as follows to the control of light-emitting diode:
0.1s the time, L1 is bright;
0.2s the time, L1, L2 is bright;
0.3s the time, L1, L2, L3 is bright;
0.4s the time, L1, L2, L3, L4 is bright;
0.5s the time, L1, L2, L3, L4, L5 is bright;
0.6s the time, L1, L2, L3, L4, L5, L6 is bright;
0.7s the time, L1, L2, L3, L4, L5, L6, L7 is bright;
0.8s the time, L1, L2, L3, L4, L5, L6, L7, L8 is bright;
Demonstration can form the demonstration of radio light beam like this.After 0.8s, begin from L1 again brighter successively, thereby form Alternation Display.
When automobile entered right steering, one-chip computer was as follows to the control of light-emitting diode:
0.1s the time, R1 is bright;
0.2s the time, R1, R2 is bright;
0.3s the time, R1, R2, R3 is bright;
0.4s the time, R1, R2, R3, R4 is bright;
0.5s the time, R1, R2, R3, R4, R5 is bright;
0.6s the time, R1, R2, R3, R4, R5, R6 is bright;
0.7s the time, R1, R2, R3, R4, R5, R6, R7 is bright;
0.8s the time, R1, R2, R3, R4, R5, R6, R7, R8 is bright;
After 0.8s, with the same Alternation Display of turning left.Certainly pitch time can independently be set, and is example with interval 0.1s here.
Radio formula light beam, Alternation Display significantly point out for when turning to the back chaufeur, cause the attention of chaufeur.
When turning to and brake, one-chip computer is as follows to the control of light-emitting diode:
(1) when turning left and brake, the light-emitting diode on the left side still adopts the above-mentioned radio light beam that replaces successively to show; And one-chip computer is according to the urgency level of brake, promptly aforementioned deceleration value scope, the demonstration number of the light-emitting diode on control the right.
(2) when turning right and during brake, the light-emitting diode on the right still adopts the above-mentioned radio light beam that replaces successively to show, and one-chip computer is according to the urgency level of brake, promptly aforementioned deceleration value scope, the demonstration number of the light-emitting diode on the control left side.
Claims (3)
1, a kind of brake read out instrument based on automobile ABS system comprises high-mount brake lamp, and described high-mount brake lamp is provided with near the automobile trunk top, is made up of transversely arranged left and right lampet group, it is characterized in that, also comprises:
ABS wheel speed collecting unit, the wheel speed information of gathering automobile by automobile ABS system;
The turn sign collecting unit, the left and right sides turn sign of collection automobile;
One-chip computer receives the wheel speed information and the turn sign of automobile, the unlatching of the left and right lampet group of control high-mount brake lamp or close.
2, a kind of brake read out instrument according to claim 1 based on automobile ABS system, it is characterized in that, described ABS wheel speed collecting unit comprises wheel speed sensors, filter, signal amplifier, the shaping comparator of serial connection successively, wheel speed sensors produces the pseudo sine wave that frequency is proportional to vehicle wheel rotational speed, behind this pseudo sine wave process filter, the signal amplifier, generate wheel speed impulse singla, i.e. wheel speed information by the shaping comparator.
3, a kind of brake read out instrument based on automobile ABS system according to claim 1 is characterized in that, described lampet adopts light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200290729U CN201201550Y (en) | 2008-05-09 | 2008-05-09 | Brake signal display device based on automobile ABS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200290729U CN201201550Y (en) | 2008-05-09 | 2008-05-09 | Brake signal display device based on automobile ABS system |
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| CN201201550Y true CN201201550Y (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200290729U Expired - Fee Related CN201201550Y (en) | 2008-05-09 | 2008-05-09 | Brake signal display device based on automobile ABS system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602332A (en) * | 2012-03-28 | 2012-07-25 | 西南林业大学 | Real-time display system for deceleration strength and deceleration value of vehicle |
| CN102602331A (en) * | 2012-03-13 | 2012-07-25 | 刘浩 | Intelligent braking efficiency factor display device |
| 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 |
| CN107284347A (en) * | 2017-05-16 | 2017-10-24 | 中国矿业大学 | A kind of method that utilization brake lamp quickly distinguishes braking strength |
| CN110901522A (en) * | 2019-12-19 | 2020-03-24 | 北京汽车集团越野车有限公司 | Brake display device and method and vehicle |
-
2008
- 2008-05-09 CN CNU2008200290729U patent/CN201201550Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602331A (en) * | 2012-03-13 | 2012-07-25 | 刘浩 | Intelligent braking efficiency factor display device |
| CN102602332A (en) * | 2012-03-28 | 2012-07-25 | 西南林业大学 | Real-time display system for deceleration strength and deceleration value of vehicle |
| CN102602332B (en) * | 2012-03-28 | 2015-09-02 | 西南林业大学 | The deceleration intensity of vehicle and the real-time display system of deceleration value |
| 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 |
| CN107284347A (en) * | 2017-05-16 | 2017-10-24 | 中国矿业大学 | A kind of method that utilization brake lamp quickly distinguishes braking strength |
| CN110901522A (en) * | 2019-12-19 | 2020-03-24 | 北京汽车集团越野车有限公司 | Brake display device and method and vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20100509 |