CN203111021U - Adaptive headlamp system control executive device - Google Patents
Adaptive headlamp system control executive device Download PDFInfo
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- CN203111021U CN203111021U CN 201320079740 CN201320079740U CN203111021U CN 203111021 U CN203111021 U CN 203111021U CN 201320079740 CN201320079740 CN 201320079740 CN 201320079740 U CN201320079740 U CN 201320079740U CN 203111021 U CN203111021 U CN 203111021U
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- gear
- executive device
- control executive
- headlamp system
- worm
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- 230000003044 adaptive effect Effects 0.000 title abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005286 illumination Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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Abstract
The utility model belongs to the field of automotive headlamp system control, and particularly relates to an adaptive headlamp system control executive device. The adaptive headlamp system control executive device comprises a shell, a power source and an executive unit. The power source is arranged in the shell, the executive unit is used for driving a headlamp system to carry out swing movement, and a transmission unit is arranged between the executive unit and the power source. The transmission unit comprises a worm gear and a first wheel gear, wherein the worm gear and the first wheel gear are arranged in a coaxial mode. Worm and gear match is formed between an output end of the power source and the worm gear. The executive unit comprises a rotating shaft and a second wheel gear, the rotating shaft is used for being fixedly connected with the headlamp system, and the rotating shaft and the second wheel gear are arranged in a coaxial mode. The first wheel gear is meshed with the second wheel gear. The adaptive headlamp system control executive device is compact in integral structure, small in occupied space and more stable in operation during headlamp angle adjustment, and normal and reliable work of the adaptive headlamp system control executive device is guaranteed.
Description
Technical field
The utility model belongs to car headlamp system control field, is specifically related to a kind of self-adaptive headlamp system control executive device.
Background technology
There are problems in traditional vehicle head lamp system in actual application, at bend, at a high speed, have the illumination dark space under the rural area, situations such as city and adverse weather, the safe driving of vehicle performance is lower.For example, vehicle is in negotiation of bends, and light and the vehicle heading of traditional head lamp are consistent, so inevitably there is the illumination dark space; The vehicle rainy day is when travelling, thereby excess surface water may be reflected the light of head lamp and made the driver produce reflected glare; When the bad back road of ambient lighting travels, need head lamp to have far beyond wide illumination distances, and when running on expressway, because vehicle is in the high speed of a motor vehicle and needs head lamp to shine farther widelyer than back road; When vehicle travels on complicated, narrow urban highway because the light type is longer and narrower, can not avoid effectively with the branch road in emergent pedestrian and/or collision happens may.And traditional head lamp system can not carry out suitable adjustment to the illuminating effect of head lamp according to the variation of lighting environment.
In the prior art, AFS(Adaptive Front Lighting System, self-adaptive headlamp system) and ALS(Auto Leveling System, the automatic horizontal control system) can realize the follow-up adjustment of automotive headlamp direction of illumination.Concrete in AFS, the irradiation light of automotive headlamp can be adjusted according to the actual travel road conditions, its direction of illumination no longer remains consistently with vehicle heading, has strengthened the illuminating effect of automotive headlamp like this, thereby has improved the safe driving of vehicle performance.
In self-adaptive headlamp system AFS working process, can be with reference to a plurality of signal inputs of travel condition of vehicle, comprise steering wheel angle signal, vehicle speed signal, country beam signal, passing light signal, signal and AFS control signal etc. reverse gear, send the action that electric machine control instructs to control motor as a reference and according to default control policy with above-mentioned information, drive the adjustment that head lamp is made respective angles by AFS angle control actuating unit.In the prior art, AFS angle control actuating unit is when the drive head lamp is made angular adjustment, because its mechanism is complicated, has more mechanical drive pair, cause in the head lamp angular adjustment its running stroke unsmooth, steady phenomenon such as angle of arrival jump often, thus make the accuracy of AFS angular adjustment to guarantee.
Summary of the invention
The purpose of this utility model provides a kind of self-adaptive headlamp system simple in structure control executive device, and its stable action is reliable.
For achieving the above object, the utility model has adopted following technical scheme: a kind of self-adaptive headlamp system control executive device, comprise housing, be arranged at the propulsion source in the housing and be used for the performance element that the driving head lamp system is flapped toward action, between described performance element and propulsion source gear unit is set; Gear unit comprises worm gear and first gear of coaxial setting, constituting worm and gear between described propulsion source mouth and worm gear cooperates, performance element comprise for the rotating shaft of affixed head lamp system and with second gear of the coaxial setting of rotating shaft, engagement arranges between first, second gear.
The beneficial effects of the utility model are: utilize the high transmission ratio characteristic of worm and gear structure itself, thereby make the utility model integral structure more compact reliable, it is little to take up room; Simultaneously, the multiple tooth engaged transmission characteristics of himself also make it more steady in running in head lamp angular adjustment process, have avoided the secondary and unsmooth phenomenons of running such as appearance jump that cause of a large amount of mechanical drive of old-fashioned employing; In addition, its counter-rotating self-locking property makes the functional reliability of head lamp system be guaranteed especially; By the worm and gear that slows down as the first order and as the second stage slow down gear-driven dual cooperation, finally guaranteed the normal reliable work of the utility model integral body.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of performance element and sensor unit.
The specific embodiment
A kind of self-adaptive headlamp system control executive device comprises housing 50, is arranged at the propulsion source 10 in the housing 50 and is used for the performance element a that the driving head lamp system is flapped toward action that 10 of described performance element and propulsions source arrange gear unit b; Gear unit comprises worm gear 21 and first gear 22 of coaxial setting, described propulsion source 10 mouths constitute worm and gear with 21 on worm gear and cooperate, performance element comprise for the rotating shaft 31 of affixed head lamp system and with second gear 32 of rotating shaft 31 coaxial settings, first, second gear 22,32 engagements arrange, as shown in Figure 1.
When reality was used, the worm gear 21 that utilizes the worm screw c that is positioned at propulsion source 10 outputs to rotate and drive gear unit rotated, thereby realized the deceleration of propulsion source 10 output torques is increased the square effect; At this moment, worm gear 21 rotates first gear, 22 interlocks that drive coaxial setting, because first, second gear 22,32 engagements arrange, first gear 22 rotates and drives 32 rotations of second gear again, rotates and output torque thereby drive the rotating shaft 31 that is arranged on second gear 32; Self-adaptive headlamp system is installed in the rotating shaft 31, finally realizes the angular adjustment function of head lamp.
In order to realize the accurate control for the head lamp angular adjustment, rotational angle that can sensor installation countershaft 31 is monitored, and feed back to the adaptive front lamp control unit to realize the closed loop control for propulsion source 10 actions, it is specially: second gear 32 is quadrant gear, and its control executive device also comprises the sensor unit that is used for its rotational angle of monitoring that is arranged at second gear, 32 places; Sensor unit comprises angular transducer 41 and the 3rd gear 42 parallel with second gear, 32 axis or that coincidence arranges, and 42 of the input end of angular transducer 41 and the 3rd gears constitute gear and cooperate, and practical structures is with reference to shown in Figure 2.That is to say, when second gear 32 left-right rotation and when driving the self-adaptive headlamp system action under propulsion source 10 effect, because the 3rd gear 42 is parallel with second gear, 32 axis or overlap setting, this moment, the 3rd gear 42 namely turned over identical angle with second gear 32, and the input end of the 3rd gear 42 and angular transducer 41 constitutes engagement fit, like this, angular transducer 41 can obtain the angle of rotating shaft 31 and 32 rotations of second gear, and second gear, 32 rotational angles are fed back to control unit, after control unit carries out calculation process, confirm that whether needing to output signal to propulsion source 10 sentences its angle compensation of realization, final complete realization is to the accurate control of total system, and accuracy rate is high.
As further preferred version of the present utility model: the 3rd gear 42 and the 32 dead in line settings of second gear, the curved spline-simulating of the 3rd gear 42 profiles, the two ends of its arc-shaped rack all vertical its end face are provided with pin shaft structure 42a, pin shaft hole 32a is offered in described second gear 32 end face corresponding positions, and constituting between the two pegs graft cooperates; Described propulsion source 10 is motor.During practical operation, can be as shown in Figure 2, with its angular transducer 41 input end d be arranged as the plug tenon structure, to guarantee its convenient installation and to safeguard and change needs.
Claims (6)
1. a self-adaptive headlamp system is controlled executive device, it is characterized in that: comprise housing (50), be arranged at the propulsion source (10) in the housing (50) and be used for the performance element that the driving head lamp system is flapped toward action, described performance element and propulsion source arrange gear unit between (10); Gear unit comprises worm gear (21) and first gear (22) of coaxial setting, constituting worm and gear between described propulsion source (10) mouth and worm gear (21) cooperates, performance element comprise for affixed head lamp system rotating shaft (31) and with second gear (32) of the coaxial setting of rotating shaft (31), engagement arranges between first, second gear (22,32).
2. control executive device according to claim 1, it is characterized in that: described second gear (32) is quadrant gear.
3. control executive device according to claim 1 and 2 is characterized in that: described control executive device also comprises and is arranged at the sensor unit that is used for its rotational angle of monitoring that second gear (32) is located.
4. control executive device according to claim 3, it is characterized in that: described sensor unit comprises angular transducer (41) and the 3rd gear (42) parallel with second gear (32) axis or that overlap to arrange, and the formation gear cooperates between the input end of angular transducer (41) and the 3rd gear (42).
5. control executive device according to claim 4, it is characterized in that: the 3rd gear (42) and second gear (32) dead in line setting, the curved spline-simulating of the 3rd gear (42) profile, the two ends of its arc-shaped rack all vertical its end face are provided with pin shaft structure (42a), pin shaft hole (32a) is offered in described second gear (32) end face corresponding position, and constituting between the two pegs graft cooperates.
6. control executive device according to claim 1 and 2, it is characterized in that: described propulsion source (10) is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079740 CN203111021U (en) | 2012-05-18 | 2013-02-21 | Adaptive headlamp system control executive device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220226333.2 | 2012-05-18 | ||
| CN201220226333 | 2012-05-18 | ||
| CN 201320079740 CN203111021U (en) | 2012-05-18 | 2013-02-21 | Adaptive headlamp system control executive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203111021U true CN203111021U (en) | 2013-08-07 |
Family
ID=48891396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320079740 Expired - Lifetime CN203111021U (en) | 2012-05-18 | 2013-02-21 | Adaptive headlamp system control executive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203111021U (en) |
-
2013
- 2013-02-21 CN CN 201320079740 patent/CN203111021U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |