CN204452185U - Automotive headlamp adaptive system - Google Patents
Automotive headlamp adaptive system Download PDFInfo
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- CN204452185U CN204452185U CN201420818027.7U CN201420818027U CN204452185U CN 204452185 U CN204452185 U CN 204452185U CN 201420818027 U CN201420818027 U CN 201420818027U CN 204452185 U CN204452185 U CN 204452185U
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Abstract
The utility model discloses a kind of automotive headlamp adaptive system, comprise steering wheel rotational angle measuring device, controller and combined light actuating unit; Steering wheel rotational angle measuring device comprises driving gear, the first driven gear, the second driven gear, and, magneto-resistive transducing device; First driven gear and the second driven gear are connected with a joggle with driving gear respectively; The number of teeth of the first driven gear and the number of teeth of the second driven gear are not etc.; Magneto-resistive transducing device is connected with the first driven gear and the second driven gear signal, for measuring the current potential phase difference of the first driven gear and the generation of the second driven gear; Controller is electrically connected with magnetoresistive transducer, for the corner according to current potential phase difference determination driving gear, and sends control signal; Combined light actuating unit is connected with controller, for performing the deflection of light according to control signal.The utility model system architecture is simple, cost is low and alerting ability is high.
Description
Technical field
The utility model relates to self-propelled vehicle lighting technical field, particularly relates to a kind of automotive headlamp adaptive system.
Background technology
At present, automotive self-adaptive head lamp system mainly comprises the automatic open function of left and right self adaptation, height adaptive and light, what realize this function obtains coherent signal mainly through bearing circle multi-turn angular transducer, car load attitude sensor and light sensor, tie the relevant subsidiary signals such as the full speed of a motor vehicle calculate through the large lamp controller of self adaptation and export control signal, drive the actuating unit in head lamp to carry out corresponding actions to realize above function by control signal.
Wherein, bearing circle multi-turn rotary angle transmitter is basic and clock spring is integrated, car load attitude sensor installs on fore suspension and rear suspension respectively, light sensor is installed to front windshield glass top, the large lamp controller of self adaptation is primarily of micro controller system and the corresponding interface and driver module composition, and actuating unit is two stepping motors and the corresponding physical construction composition that are integrated in headlight inside.
But there is following shortcoming in above-mentioned automotive self-adaptive head lamp system:
The first, system complex, cost are high;
The second, some sensor is mutually integrated with other modules, and like this, cause the function of this sensor cannot independent of other structures, after certain sensor failure, whole integrated morphology be all affected, and system flexibility is low, and, integratedly too increase cost.
Utility model content
In view of this, the utility model is intended to propose that a kind of system architecture is simple, cost is low and the automotive headlamp adaptive system that alerting ability is high.
The utility model automotive headlamp adaptive system comprises steering wheel rotational angle measuring device, controller and combined light actuating unit; Described steering wheel rotational angle measuring device comprises driving gear, the first driven gear, the second driven gear, and, magneto-resistive transducing device; Described first driven gear and described second driven gear are connected with a joggle with described driving gear respectively; The number of teeth of described first driven gear and the number of teeth of described second driven gear are not etc.; Described magneto-resistive transducing device is connected with described first driven gear and described second driven gear signal, for measuring the current potential phase difference of described first driven gear and described second driven gear generation; Described controller is electrically connected with described magneto-resistive transducing device, for determining the corner of described driving gear according to described current potential phase difference, and sends control signal; Described combined light actuating unit is connected with described controller, for performing the deflection of light according to described control signal.
Further, in above-mentioned automotive headlamp adaptive system, described first driven gear and described second driven gear are provided with magnet.
Further, in above-mentioned automotive headlamp adaptive system, described magneto-resistive transducing device comprises the first magnetoresistive transducer and the second magnetoresistive transducer; Described first magnetoresistive transducer is arranged at described first driven gear; Described second magnetoresistive transducer is arranged at described second driven gear.
Further, in above-mentioned automotive headlamp adaptive system, described steering wheel rotational angle measuring device is arranged at the bottom of vehicle steering.
Further, in above-mentioned automotive headlamp adaptive system, described combined light actuating unit comprises lens type head lamp, rotating mechanism, rotating mechanism base and stepping motor; Described stepping motor is installed between described rotating mechanism base and described rotating mechanism, and described stepping motor is for driving the rotation of described rotating mechanism; Described lens type head lamp is installed on described rotating mechanism.
Further, in above-mentioned automotive headlamp adaptive system, described stepping motor is linear electric motors.
Further, in above-mentioned automotive headlamp adaptive system, described combined light actuating unit is also provided with micro-adjusting mechanism; Described micro-adjusting mechanism is rotationally connected with described rotating mechanism base.
Further, in above-mentioned automotive headlamp adaptive system, described micro-adjusting mechanism comprises up/down micro-adjusting mechanism and left/right micro-adjusting mechanism.
Further, in above-mentioned automotive headlamp adaptive system, described up/down micro-adjusting mechanism and left/right micro-adjusting mechanism are hand gear.
Further, in above-mentioned automotive headlamp adaptive system, described lens type head lamp is also covered with shell outward.
Compared to prior art, the utility model structure is simple, and use of can upgrading on any automobile, realizes head lamp left and right lag function by steering wheel rotational angle measuring device, controller and combined light actuating unit; Further, steering wheel rotational angle measuring device is independently arranged, not with other structure assemblies, and then, prevent with other integration of equipments after bring the problem of the increase of cost and the reduction of alerting ability.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 shows in the utility model automotive headlamp adaptive system embodiment, the first driven gear and the second driven gear corner phase signal figure;
Fig. 2 shows in the utility model automotive headlamp adaptive system embodiment, the structural representation of combined light actuating unit.
Detailed description of the invention
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Below in conjunction with Fig. 1 and Fig. 2, the preferred embodiment of the utility model automotive headlamp adaptive system is described.
The utility model automotive headlamp adaptive system embodiment comprises steering wheel rotational angle measuring device, controller and combined light actuating unit; Steering wheel rotational angle measuring device comprises driving gear, the first driven gear, the second driven gear, and magneto-resistive transducing device; First driven gear and the second driven gear are connected with a joggle with driving gear respectively; The number of teeth of the first driven gear and the number of teeth of the second driven gear are not etc.; Magneto-resistive transducing device is connected with the first driven gear and the second driven gear signal, for measuring the current potential phase difference of the first driven gear and the generation of the second driven gear; Controller is electrically connected with magnetoresistive transducer, for the corner according to current potential phase difference determination driving gear, and sends control signal; Combined light actuating unit is connected with controller, for performing the deflection of light according to control signal.
In above-mentioned automotive headlamp adaptive system, the first driven gear and the second driven gear are provided with magnet.Magneto-resistive transducing device comprises the first magnetoresistive transducer and the second magnetoresistive transducer; First magnetoresistive transducer is arranged at the first driven gear; Second magnetoresistive transducer is arranged at the second driven gear.
Below, the principle of work of composition graphs 1 pair of steering wheel rotational angle measuring device is described.
This steering wheel rotational angle measuring device is independently structure.
This steering wheel rotational angle measuring device mainly by one initiatively big gear wheel and two with magnet and the number of teeth current potential phase difference that produces on two magnetoresistive transducers of two miniature gearss such as not, obtain steering wheel angle signal by calculating phase difference, this angular signal precision is high, stable.
With reference to Fig. 1, be the first driven gear and the second driven gear corner phase signal figure.Wherein, curve a is the corner phase diagram of the first driven gear, and curve b is the corner phase place of the second driven gear.Two phase differences are shown, phase difference A and phase difference B in Fig. 2.The horizontal axis plots time of coordinate.
As can be seen from Figure 2 driving gear rotates from zero point, because the number of teeth of two driven gears is unequal, so after driving gear turns over certain angle, first driven gear and the second driven gear the angle that turns not etc., so the signal that such two magnetoresistive transducers export will exist phase difference, this difference will just obtain the corner of driving gear by the calculating of mechanical rotation ratio.The volume of this steering wheel rotational angle measuring device is little, lightweight, can be arranged on bearing circle bottom.
Compared to prior art, the present embodiment structure is simple, and use of can upgrading on any automobile, realizes head lamp left and right lag function by steering wheel rotational angle measuring device, controller and combined light actuating unit; Further, steering wheel rotational angle measuring device is independently arranged, not with other structure assemblies, and then, prevent with other integration of equipments after bring the problem of the increase of cost and the reduction of alerting ability.
With reference to Fig. 2, in above-mentioned automotive headlamp adaptive system, combined light actuating unit comprises lens type head lamp 3, rotating mechanism 6, rotating mechanism base 5 and stepping motor 4; Stepping motor 4 is installed between rotating mechanism base 5 and rotating mechanism 6, and stepping motor 4 is for driving the rotation of rotating mechanism 6; Lens type head lamp 3 is installed on rotating mechanism 6.
Stepping motor 4 is linear electric motors, and combined light actuating unit is also provided with micro-adjusting mechanism; Micro-adjusting mechanism is rotationally connected with rotating mechanism base 5, and micro-adjusting mechanism comprises up/down micro-adjusting mechanism 1 and left/right micro-adjusting mechanism 2.Preferably, up/down micro-adjusting mechanism 1 and left/right micro-adjusting mechanism 2 are hand gear.
In addition, usually, in automotive headlamp adaptive system, lens type head lamp 3 is outer is also covered with shell.
Briefly, combined light actuating unit on the basis of existing lens type head lamp 3, increases the rotating mechanism 6 of machinery and stepping motor 4 to realize deflection, ensure that simultaneously original electronic or mechanical height regulatory function and large lamp housing constant when realize.
To sum up, can find out, the present embodiment has following advantage:
1, system composition is simple, use of can upgrading on any automobile.Head lamp left and right lag function is realized mainly through steering wheel rotational angle measuring device, controller and combined light actuating unit.
2, steering wheel rotational angle measuring device is independently arranged, and brings the increase of cost and the reduction of alerting ability after preventing other integration of equipments like this.
3, combined light actuating unit only increases a base, a rotating mechanism and a stepping motor composition on the basis of ordinary lens formula headlight.This scenario-frame is simple, cost is low, less investment.
In other words, operating mode the most frequently used in running car is rotated with direction about head lamp, and the function that the utility model rotates with vehicle traveling direction about possessing light, simplifies system architecture, reduces cost and turn reduce fault rate simultaneously.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. an automotive headlamp adaptive system, is characterized in that, comprising:
Steering wheel rotational angle measuring device, controller and combined light actuating unit;
Described steering wheel rotational angle measuring device comprises driving gear, the first driven gear, the second driven gear, and, magneto-resistive transducing device;
Described first driven gear and described second driven gear are connected with a joggle with described driving gear respectively; The number of teeth of described first driven gear and the number of teeth of described second driven gear are not etc.;
Described magneto-resistive transducing device is connected with described first driven gear and described second driven gear signal, for measuring the current potential phase difference of described first driven gear and described second driven gear generation;
Described controller is electrically connected with described magneto-resistive transducing device, for determining the corner of described driving gear according to described current potential phase difference, and sends control signal;
Described combined light actuating unit is connected with described controller, for performing the deflection of light according to described control signal.
2. automotive headlamp adaptive system according to claim 1, is characterized in that,
Described first driven gear and described second driven gear are provided with magnet.
3. automotive headlamp adaptive system according to claim 1 and 2, is characterized in that,
Described magneto-resistive transducing device comprises the first magnetoresistive transducer and the second magnetoresistive transducer;
Described first magnetoresistive transducer is arranged at described first driven gear;
Described second magnetoresistive transducer is arranged at described second driven gear.
4. automotive headlamp adaptive system according to claim 1, is characterized in that,
Described steering wheel rotational angle measuring device is arranged at the bottom of vehicle steering.
5. automotive headlamp adaptive system according to claim 1, is characterized in that,
Described combined light actuating unit comprises lens type head lamp, rotating mechanism, rotating mechanism base and stepping motor;
Described stepping motor is installed between described rotating mechanism base and described rotating mechanism, and described stepping motor is for driving the rotation of described rotating mechanism;
Described lens type head lamp is installed on described rotating mechanism.
6. automotive headlamp adaptive system according to claim 5, is characterized in that,
Described stepping motor is linear electric motors.
7. automotive headlamp adaptive system according to claim 5, is characterized in that,
Described combined light actuating unit is also provided with micro-adjusting mechanism;
Described micro-adjusting mechanism is rotationally connected with described rotating mechanism base.
8. automotive headlamp adaptive system according to claim 7, is characterized in that,
Described micro-adjusting mechanism comprises up/down micro-adjusting mechanism and left/right micro-adjusting mechanism.
9. automotive headlamp adaptive system according to claim 8, is characterized in that,
Described up/down micro-adjusting mechanism and left/right micro-adjusting mechanism are hand gear.
10. the automotive headlamp adaptive system according to any one of claim 5 to 9, is characterized in that,
Described lens type head lamp is also covered with shell outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818027.7U CN204452185U (en) | 2014-12-18 | 2014-12-18 | Automotive headlamp adaptive system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420818027.7U CN204452185U (en) | 2014-12-18 | 2014-12-18 | Automotive headlamp adaptive system |
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| CN204452185U true CN204452185U (en) | 2015-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334600A (en) * | 2017-07-06 | 2017-11-10 | 哈工大机器人（合肥）国际创新研究院 | A kind of multichannel mixed signal acquisition system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334600A (en) * | 2017-07-06 | 2017-11-10 | 哈工大机器人（合肥）国际创新研究院 | A kind of multichannel mixed signal acquisition system |
| CN107334600B (en) * | 2017-07-06 | 2019-09-24 | 哈工大机器人（合肥）国际创新研究院 | A kind of multichannel mixed signal acquisition system |
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