CN1775589A - Road-adaptive vehicle lamp auto-control device - Google Patents
Road-adaptive vehicle lamp auto-control device Download PDFInfo
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- CN1775589A CN1775589A CN 200410088685 CN200410088685A CN1775589A CN 1775589 A CN1775589 A CN 1775589A CN 200410088685 CN200410088685 CN 200410088685 CN 200410088685 A CN200410088685 A CN 200410088685A CN 1775589 A CN1775589 A CN 1775589A
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Abstract
The invention relates to a road adaptability vehicle light self-control device, mainly composed of a microprocessor, a road surface condition sensing unit, a motor driver, a connection interface, where the microprocessor obtains the road surface conditions such as turn, upslope, and down-slope through the road surface condition sensing unit and then controls the irradiation angles of the vehicle lights through motor drivers and turns on auxiliary vehicle lights through connection interfaces; thus, the invention does require the driver to switch, turn on and off the vehicle lights by himself and can effectively raise vehicle running safety.
Description
Technical field
The invention relates to a kind of road-adaptive vehicle lamp auto-control device, refer to especially a kind of along with environment and road conditions change, and the self-con-tained unit of automatic guidance car light angular adjustment.
Background technology
Along with the prosperity of computing machine science and technology, the orthodox car industry imports computerized operating system, does auxiliary record, judges the usefulness of vehicle condition and position, even also have function automatic and extraneous two-way contact, and is more comfortable when allowing the steerman steering vehicle.
Vehicle also has depot that the structure of script vehicle is improved except newly-increased function.With car light, can be divided into the car light of difference in functionalitys such as lamp far away, low beam, fog lamp, these car lights mainly are the driver assistance people usefulness of driving safety in the dark, can switch the difference in functionality lamp by steerman along with the environmental change and the situation of sending a car.Therefore, when steerman is driven, need alertly along with switching the difference in functionality lamp in response to different situations.Particularly; when switching to lamp far away as just there being the other side to send a car; then need the switchback low beam to avoid influencing the sight line of sending a car; but in fact seldom steerman can so be done; be with; be to meet the steerman of being accustomed to Kaiyuan City's lamp and not switching to low beam when vehicle is set out on a journey, and influence the sight line of the steerman of sending a car through regular meeting.
In view of this, at present existing people is designed to car light to have the car lamp device of adjustable angle, cooperate the interior computer system of car to carry out the program of car light angular adjustment, only, the reference factor of computer system automatic compensation car light angle is the speed of a motor vehicle, ambient light, the place ahead luminosity in the car at present.Be with, the vehicle of this system is equipped with at present, can be under the insufficient light environment self-opening car light, and adjust the car light irradiation angle according to the speed of a motor vehicle and the place ahead luminosity of sending a car, provide safer driving of steerman to control environment.
Yet, before take off car light automatic guidance computer system and in practical application, still have deficiency, promptly, this computer system is except being adjusted the car light angle with reference to the speed of a motor vehicle, ambient light and the place ahead luminosity, actual environment and vehicle condition still have visual dead angle, when particularly drive night, and the variation of the different road conditions such as turning, upward slope, descending of passing through as vehicle, the needed illumination zone of steerman is elasticity more, so that safer driving environment to be provided.
Summary of the invention
For this reason, the invention provides a kind of road-adaptive vehicle lamp auto-control device, promptly according to the pass through variation of different road conditions and external environment of vehicle, car light opens and closes and the angle and the direction of irradiation and suitably adjust, make under the situation that steerman is low in ambient light, sight line is not good, have best illumination zone, guarantee the safety of driving a vehicle.
Desire to reach major technique means that above-mentioned purpose uses and be that to make this car light self-con-tained unit be to consist predominantly of;
One microprocessor;
One road conditions sensing cell is to be connected to this microprocessor, gives microprocessor with the reaction road conditions;
One motor driver is to be connected with the mouth of microprocessor, for connecting a car light motor, so that by microprocessor control car light motor, adjust vehicle light illumination angle and direction; And
One connecting interface is to be connected with this little place mound device mouth, connects for auxiliary car light;
Above-mentioned road conditions sensing cell and motor driver and connecting interface are to be connected with microprocessor, this microprocessor is to see through the road conditions sensing cell to detect road conditions such as ground-surface situation such as turning, upward slope, descending, and then see through motor driver control car light irradiation angle, and light through the auxiliary car light of connecting interface control; So, the present invention can provide the car light self-con-tained unit of a road-fitting property, and need not steerman and switch the keying car light voluntarily, and the visual dead angles of the driving at night of can throwing light on ahead of time, effectively promote traffic safety.
The present invention's time purpose provides a car light self-con-tained unit with illumination functions on rainy day, promptly before taking off microprocessor is to be connected with a rain brush sensor, to obtain the rain brush number of oscillations, judge the force of rain size of present car external environment, because force of rain size can influence the row sight line, so when the force of rain is big, need open car light, to ensure safety.
Still a further object of the present invention provides the car light self-con-tained unit of a driving positioning function, promptly this microprocessor is to be connected with a GPS interface again, connect for the GPS receiver module, read vehicle place coordinate position to obtain GPS (Global Position System), and then, can open and close auxiliary car light in the nearly cross roads of vehicle place as the vehicle location effect, send a car to warn laterally, or the vehicle of subtend desire turning.
Description of drawings
Fig. 1: be a diagram of block of the present invention.
Fig. 2: be a part of control flow chart of the present invention.
Fig. 3: be another part control flow chart of the present invention.
Fig. 4 A, B, C: be the car light angular deflection scheme drawing of Another Application of the present invention in different road conditions.In the accompanying drawing:
10--self-con-tained unit 11--microprocessor
12--motor driver 13--connecting interface
14--signal acquisition interface 15--road conditions sensing cell
The 151--automatic horizontal is sighted sensor
152--rotary angle transmitter 153--image sensor
16--car speed sensor 17--luminosity sensor
The 18--sensor 19--telltale of sending a car
20--power conversion unit 21--rain brush sensor
22--GPS interface 30--car light
31--motor 32--additional lamp
The 40--vehicle
The specific embodiment
At first seeing also shown in Figure 1ly, is the diagram of block for road-adaptive vehicle lamp auto-control device 10 of the present invention, and it mainly cooperates the car light with angular adjustment function to use, and it includes:
One microprocessor 11, The built-in have a self-regulation mode and a safe answer pattern;
At least two group motor drivers 12 are the mouths that are connected to this microprocessor 11, are connected for the motor 31 with headlight for car 32 angle adjusters;
At least two group car light connecting interfaces 13 are the mouths that are connected to this microprocessor 11, connect it respectively for two auxiliary car lights 32;
One signal acquisition interface 14 is mouth and the input ends that connect this microprocessor 11;
One road conditions sensing cell 15 is to see through this signal acquisition interface 14 to be connected with microprocessor 11, gives microprocessor 11 with reaction vehicle road conditions of living in; This road conditions sensing cell 15 is to include an automatic horizontal to sight sensor 151, a rotary angle transmitter 152 and an image sensor 153;
One car speed sensor 16 is to see through this signal acquisition interface 14 to be connected with microprocessor 11, gives microprocessor 11 with the reaction speed of a motor vehicle;
One luminosity sensor 17 is to see through this signal acquisition interface 14 to be connected with microprocessor 11, gives microprocessor 11 with the external ring degree of reaction vehicle photometric quantity;
One sensor 18 of sending a car is to see through this signal acquisition interface 14 to be connected with microprocessor 11, gives microprocessor 11 to react the vehicle front photometric quantity;
One telltale 19 is the mouths that are connected to this microprocessor 11, opens and closes and the angular adjustment situation with detection numerical value or the car light that shows each sensing cell; And
One power conversion unit 20 is taken off each assembly working power before providing.
Again, above-mentioned little processing 11 devices can see through signal acquisition interface 14 again and be connected with rain brush sensor 21, whether with the reaction external environment is the environment that rains, and can be connected with a GPS interface 22 again, connect the usefulness that vehicle location is provided and judges the cross roads position for GPS receiver module (not shown).
Because microprocessor 11 is combined with road conditions sensing cell 15, can judge the vehicle condition of present vehicle, promptly, it is in order to the forward and backward and ground-surface gap of the vehicle body of senses vehicle that this automatic horizontal is sighted sensor 151, to judge that vehicle body leans forward or swings back because of travelling people's number or road grade are, and this rotary angle transmitter 152 is the corners that detect bearing circle, and image sensor 153 in order to detect vehicle front ground-surface curvature, is to connect for the GPS receiver module as for 22 of GPS input interfaces then.Be to judge vehicles different road conditions of living in by preceding taking off vehicle condition sensing cell 15, and then adjust car light 31 angles or open additional lamp 32 with, this microprocessor 11.
The self-regulation mode of above-mentioned microprocessor 11 is to include:
One opens the car light step, is to detect external environment luminosity by photometric detector, if photometric quantity is lower than standard value, then controls car light and opens;
One opens the additional lamp step, be to open according to GPS interface incoming signal control subsidy lamp, promptly locate to export a signal for preceding at the parting of the ways tens meters about 50 meters by GPS collocation GIS (electronic chart) meeting, so this signal of microprocessor fechtable as the foundation that opens and closes additional lamp, makes the vehicle crossing of passing through light the auxiliary corner lamp in both sides to reach broad light type for preceding ten meters;
One adjusts lower angle step on the car light, is to be adjusted it according to the input of correlative measurement sense signal, promptly includes signals such as the luminosity of sending a car, the speed of a motor vehicle, car body obliqueness or rainy state; And
One adjusts car light left and right sides angle step, is mainly adjusted it according to the car curvature of face or steering wheel angle signal.
The angular dimension that above-mentioned each sensing signal input is adjusted is to preestablish it, and when per hour surpassing 100 kilometers when the speed of a motor vehicle, every increase is then adjusted car light skew 2 for 10 kilometers and spent.
Please cooperate and consult shown in Figure 2ly, be the detailed process step for above-mentioned self-regulation mode:
Microprocessor judges whether to have activated self-regulation mode 40 earlier, if, then read the environment luminosity sensor, with the present vehicle external environment of sensing photometric quantity E, and judge whether to be lower than default photometric quantity 41, if it is low then to represent present surround lighting to spend, promptly begin to enter the control of automatic guidance vehicle light illumination angle.Whether microprocessor can read the sensor of sending a car, car speed sensor, image sensor and GPS interface simultaneously the signal input, be as the foundation of controlling additional lamp 51 except GPS interface 45 wherein, other sensing signal then is as controlling the car light adjustment foundation of angle up and down.Promptly, in a single day microprocessor has detected and has sent a car 42, then control the car light motor vehicle light illumination direction is down adjusted 49, and arranged signal when input 44 when microprocessor detects this image sensor, then controlling the car light motor makes the vehicle light illumination direction be left and right directions angular adjustment 50, and for the input of car speed sensor, then microprocessor can be set a speed of a motor vehicle predetermined value, and therewith a speed of a motor vehicle predetermined value relatively at present the speed of a motor vehicle whether greater than predetermined value 43.If when surpassing, then judge again when whenever surpassing 10 kilometers of specific speed per hour values, with the automatic guidance car light adjust car light to the certain angle that raises up as 2 degree 46.When if the speed of a motor vehicle surpasses speed of a motor vehicle predetermined value, then microprocessor reads rain brush sensor and automatic horizontal more respectively and sights sensor whether signal input 47 is arranged, if then control car light equally and raise angle angle 48 up and down.Then get back to judging whether into eight self-regulation mode steps 40 if not, when whether being lower than a setting value, if the bulb that the ambient light value to be higher than a setting value, is then controlled in the car light of the vehicle is the state of cutting off to detect vehicle external environment photometric quantity λ u.
Above-mentioned unlatching additional lamp step and adjustment car light left and right sides angle step can cooperate the output signal of rotary angle transmitter and car speed sensor to be controlled the keying of subsidizing lamp again.Because of microprocessor can periodically read this steering wheel angle and corner rate of change, so as greater than monolateral set angle, then can adjust the car light steering angle, if the corner angle of bearing circle is greater than set angle at present, and when the car light steering hardware has been positioned at the maximum angle position, promptly must open and the additional lamp that is wide-angle car light same edge, the usefulness of light angle is supplied in effect; In addition, if the steering wheel angle rate of change is during greater than setting value, also together with the time light this auxiliary corner lamp and adjust the car light direction, use the part that the steering angle restriction is arranged that remedies low beam, increase illumination zone and become big and brightness of illumination and reach.
See also Fig. 3, it is the control flow chart of adjusting car light and additional lamp according to the corner angle and the speed of a motor vehicle for one, wherein in this control flow be with predetermined angular be made as 300 degree, the corner rate of change is set at per second 100 degree, preset vehicle speed then is made as per hour 60 kilometers.When flow process begins, whether detect the present speed of a motor vehicle earlier greater than per hour 60 kilometer 60, the direction of then judging present steering wheel angle by rotary angle transmitter is used the motor 65,66 of control the right or left side car light for taking back or take over 64 if not, and the illumination direction that makes car light is towards the one side that turns to.In this diagram of circuit, the present invention is that the account form of setting rotational angle is y=[(x-45) * 15]/135.When if this speed of a motor vehicle per hour is equal to or less than 60 kilometers 61, judge turning to of bearing circle again, with the car light irradiation angle 62/63 of control equidirectional, only at present under lower-speed state, so the deflection angle account form of car light is y=x-45.
Afterwards, judge again whether present steering wheel angle has exceeded 300 degree 67, if, apparent direction dish corner direction 68 and open the additional lamp 69,70 of equidirectional then; If not, then calculate the corner rate of change 71 of present bearing circle, and judge whether present corner whether greater than 45 degree 72, exceeds predetermined value 73 if just judge present corner rate of change, if exceed then judge present bearing circle turn to 68, the additional lamp of control equidirectional opens 69,70.
The effect that the present invention specifically reaches is, the method and apparatus of a kind of dynamic real-time reaction, automatic compensation vehicle car light illumination distances is provided, to increase the visual range that the driver drives the vehicle night, the glare effect that produces when reducing the intersection car is to improve the safety person who drives or drive a conveyance night.Please cooperate and consult shown in Fig. 4 A, be to advance when meet turning for being equiped with vehicle 40 of the present invention, and its car light irradiation angle can be controlled and be offset towards turn direction.With vehicle 40 right curved situations, car light irradiation angle right avertence can shine the right-hand environment of steerman, takes place to take precautions against right-hand unexpected situation early, reduces visual dead angles.
Please cooperate and consult shown in Fig. 4 B, be car light deviation angle during for control vehicle 40 descendings of the present invention, when promptly vehicle 40 entered the descending highway section, car light can and be adjusted downward irradiating angle previously, to allow the sight line of steerman reach in the road in vehicle 40 the place aheads the blind area when reducing descending equally as early as possible.Otherwise, shown in Fig. 4 C, it is car light deviation angle when going up a slope for control vehicle of the present invention 40, be that vehicle is when entering uphill way, car light can and be adjusted upwards irradiating angle previously, to allow the sight line of steerman reach in the road conditions in vehicle driving up highway section as early as possible, the same blind area that reduces when going up a slope helps traffic safety.
As shown in the above description, the present invention is the sensor of integrating the various road conditions of plural number reaction, external environment, vehicle condition, As the foundation that the control car light is adjusted, so, the present invention namely provides a kind of car light self-con-tained unit of road-fitting property, so that When the driver need not to control oneself reaction road conditions or external environment change, the irradiating angle of control car light increased driver's night Between drive the visual range of the vehicles, the glare effect that produces when reducing the intersection car drives or drives to improve night Sail the security of the vehicles.
For this reason, the present invention provides road-adaptive vehicle lamp auto-control device with better function really, with the skill in constructed field Art is compared the usability that really has on the industry, and compared to present car light self-con-tained unit, the present invention is with regard to structure In the design and the effect that presents all better than it, be with, the present invention also meets the patent requirements such as novelty, progressive, File an application in whence in accordance with the law mere formality.
Claims (9)
1. a road-adaptive vehicle lamp auto-control device is characterized in that, is to include:
One microprocessor, The built-in have a self-regulation mode and a safe answer pattern;
At least two group motor drivers are to be located on the mouth of this microprocessor, for being connected with the motor of a headlight for car angle adjuster;
At least two group car light connecting interfaces are to be divided on the mouth of this microprocessor, connect it respectively for two auxiliary car lights;
One signal acquisition interface is mouth and the input end that connects this microprocessor;
One road conditions sensing cell is to see through this signal acquisition interface to be connected with microprocessor, gives microprocessor with reaction vehicle road conditions of living in;
One car speed sensor is to see through this signal acquisition interface to be connected with microprocessor, gives microprocessor with the reaction speed of a motor vehicle;
One luminosity sensor is to see through this signal acquisition interface to be connected with microprocessor, gives microprocessor with the external ring degree of reaction vehicle photometric quantity;
One sensor of sending a car is to see through this signal acquisition interface to be connected with microprocessor, gives microprocessor to react the vehicle front photometric quantity; And
One power conversion unit is taken off each assembly working power before providing.
2. as the road-adaptive vehicle lamp auto-control device as described in 1 of the claim the, it is characterized in that the mouth of this microprocessor is further to be connected with a telltale, open and close and the angular adjustment situation with detection numerical value or the car light that shows each sensing cell.
3. as the road-adaptive vehicle lamp auto-control device as described in claim the 1 or 2, it is characterized in that this microprocessor is to see through the signal acquisition interface to be connected with a rain brush sensor, to react whether external environment is the environment that rains.
4. as the road-adaptive vehicle lamp auto-control device as described in claim the 1 or 2, it is characterized in that this microprocessor is to see through the signal acquisition interface to be connected with a GPS interface, the connection of confession GPS receiver module provides the usefulness of vehicle location.
5. as the road-adaptive vehicle lamp auto-control device as described in claim the 1 or 2, it is characterized in that this road conditions sensing cell is to include an automatic horizontal to sight sensor, a rotary angle transmitter and an image sensor.
6. as the road-adaptive vehicle lamp auto-control device as described in 3 of the claims the, it is characterized in that this road conditions sensing cell is to include an automatic horizontal to sight sensor, a rotary angle transmitter and an image sensor.
7. as the road-adaptive vehicle lamp auto-control device as described in 4 of the claims the, it is characterized in that this road conditions sensing cell is to include an automatic horizontal to sight sensor, a rotary angle transmitter and an image sensor.
8. as the road-adaptive vehicle lamp auto-control device as described in 7 of the claims the, it is characterized in that the self-regulation mode of this microprocessor is to include:
One opens the car light step, is to detect external environment luminosity by photometric detector, if photometric quantity is lower than standard value, then controls car light and opens;
One opens the additional lamp step, is to open according to GPS interface incoming signal control subsidy lamp;
One adjusts car light left and right sides angle step, is to be adjusted it according to the input of correlative measurement sense signal, promptly includes signals such as the luminosity of sending a car, the speed of a motor vehicle, car body obliqueness or rainy state; And
One adjusts lower angle step on the car light, is mainly adjusted it according to the car curvature of face or steering wheel angle signal.
9. as the road-adaptive vehicle lamp auto-control device as described in 8 of the claims the, it is characterized in that, this unlatching additional lamp step is further to comprise the step of being controlled the keying of subsidy lamp according to a rotary angle transmitter output signal, promptly capture steering wheel angle and corner rate of change, so as greater than monolateral set angle, then adjust the car light steering angle, if angle during greater than set angle steering hardware when the maximum angle position, then remake the additional lamp of moving same edge, to supply light angle; In addition if the steering wheel angle rate of change is during greater than setting value, also together with the time light this auxiliary corner lamp and adjust the car light direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100886856A CN100400337C (en) | 2004-11-15 | 2004-11-15 | Road-adaptive vehicle lamp auto-control device |
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| CNB2004100886856A CN100400337C (en) | 2004-11-15 | 2004-11-15 | Road-adaptive vehicle lamp auto-control device |
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| CN1775589A true CN1775589A (en) | 2006-05-24 |
| CN100400337C CN100400337C (en) | 2008-07-09 |
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| CNB2004100886856A Expired - Fee Related CN100400337C (en) | 2004-11-15 | 2004-11-15 | Road-adaptive vehicle lamp auto-control device |
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| CN100506606C (en) * | 2007-03-12 | 2009-07-01 | 上海小糸车灯有限公司 | Self-adaptive control device for head light of auto car |
| CN101817324A (en) * | 2010-05-18 | 2010-09-01 | 吉林大学 | Intelligent vehicle head lamp system simulating preview action of driver |
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| CN102242897A (en) * | 2011-04-27 | 2011-11-16 | 奇瑞汽车股份有限公司 | Intellectual lighting system for automobile headlamp and control method thereof |
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