CN101823458A - Fault treating method of self-adaptive headlamp system - Google Patents
Fault treating method of self-adaptive headlamp system Download PDFInfo
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Abstract
The invention relates to a fault treating method of a self-adaptive headlamp system, which comprises the following steps that: (1) when the system fails, a vehicle body controller ECU sorts the faults and judges whether the faults belong to one or two types of horizontal control fault and vertical control fault; (2) if the faults are judged only to belong to the horizontal control fault, the headlamp is forcedly aligned in the horizontal direction, and is automatically dimmed in the vertical direction; if the faults are judged only to belong to the vertical control fault, the headlamp is forcedly aligned in the vertical direction and is automatically dimmed in the horizontal direction; and if the faults are judged to belong to the horizontal control fault and the vertical control fault simultaneously, the headlamp is forcedly aligned in the horizontal and vertical directions. The invention implements corresponding treating methods on different faults by sorting and judging the faults under the condition that the system fails, and can still realize a part of self-adaptive dimming function.
Description
Technical field
The present invention relates to the automotive lighting technical field, especially a kind of fault handling method of self-adaptive headlamp system.
Background technology
Traditional head lamp system at bend, at a high speed, on the road surface, rural, perhaps under boisterous influence, all can have the illumination dark space, had a strong impact on running safety, therefore make development self-adaptive headlamp system AFS become necessity.Self-adaptive headlamp system AFS can send different light types according to different environment, and for chaufeur provides sufficient illumination, this system is made up of controller, sensor, actuating unit etc.At present, self-adaptive headlamp system AFS is the inevitable direction of head lamp technical development, and many than traditional headlight complexity aspect physical construction and control algorithm of the head lamp among the self-adaptive headlamp system AFS.
Although more existing correlation techniques have solved relevant some implement devices and the control method of self-adaptive headlamp system AFS, but the fault handling method of perfect self-adaptive headlamp system AFS is not proposed, for guaranteeing the head lamp reliability in use of self-adaptive headlamp system AFS, be necessary very much to carry out perfect to its fault handling method.Such as application number is that No. 200910006939.8 patent application discloses a kind of lamps apparatus for vehicle irradiating direction control system, when this system detects system exception, this direction of illumination forcibly according to rectilinear direction, can't be carried out the automatically regulating of light again, have certain limitation.
Summary of the invention
The object of the present invention is to provide and a kind ofly when the self-adaptive headlamp system et out of order, fault is classified, still can realize the fault handling method of the self-adaptive headlamp system of part dimming function.
A kind of fault handling method of self-adaptive headlamp system, this method comprises the step of following order:
(1) when system breaks down, car body controller ECU classifies to fault, and judges that this fault belongs to one or both in horizontal direction control fault, the vertical control fault;
(2) if car body controller ECU judges that this fault only belongs to the horizontal direction control fault, then head lamp is just forced back in the horizontal direction, with an automatic light meter on vertical; If car body controller ECU judges that this fault only belongs to the vertical control fault, then head lamp is just being forced back on vertical, with an automatic light meter in the horizontal direction; If car body controller ECU judges that this fault belongs to horizontal direction control fault and vertical control fault simultaneously, then just forces back on level, vertical head lamp.
As shown from the above technical solution, the present invention by fault is classified, judged, implements corresponding handling at different faults under the situation of self-adaptive headlamp system AFS et out of order, still can realize the function of part self adaptation light modulation simultaneously.In case the present invention has overcome the defective that et out of order in the prior art is just closed whole self adaptation dimming functions, when saving the self adaptation dimming function as far as possible from damage, has also strengthened its reliability.
Description of drawings
Fig. 1,2 is respectively system chart of the present invention and workflow diagram.
The specific embodiment
A kind of fault handling method of self-adaptive headlamp system, this method comprises the step of following order:
The first, when system broke down, car body controller ECU 1 judged that this fault belongs to a kind of in horizontal direction control fault and the vertical control fault or two kinds;
The second, if car body controller ECU 1 judges that this fault only belongs to the horizontal direction control fault, then head lamp is just forced back in the horizontal direction, with an automatic light meter on vertical, dazzling to prevent the send a car vehicle head lamp light of chaufeur of opposite; If car body controller ECU 1 judges that this fault only belongs to the vertical control fault, then head lamp is just being forced back on vertical, with an automatic light meter in the horizontal direction, thus continuation is to the area illumination of the required identification of chaufeur; If car body controller ECU 1 judges that this fault belongs to horizontal direction control fault and vertical control fault simultaneously, then head lamp is just forced back on level, vertical, as shown in Figure 1, 2.
In conjunction with Fig. 1,2, described horizontal direction control fault is to cause by car speed sensor 3 faults, steering wheel angle sensor 14 faults, the distribution bad connection of each several part, steering hardware horizontal motion are bad etc.; Described vertical control fault is to cause by high sensor 4 faults of axle, the distribution bad connection of each several part, steering hardware perpendicular movement are bad etc.This classification for fault is artificial the setting, can change according to actual conditions.Described force back in the horizontal direction just to be meant force head lamp towards the dead ahead in the horizontal direction, describedly force head lamp to be got back to be lower than and near the position in dead ahead forcing back on the vertical just to be meant on vertical.Because the head lamp of common vehicle is that individual angle is arranged downwards in vertical, this is the requirement in the GB luminous intensity distribution, and vertical forces back car light just just to get back to the common car light of no AFS function of GB defined in vertical at the irradiating angle of vertical.When described dead ahead is meant vehicle 9 cruisings towards direction.The described car body controller ECU 1 that is meant with an automatic light meter is according to the corner of the head lamp that calculates in level, vertical, send and control signal to motor driver 5, motor driver 5 makes the steering hardware 6 of head lamp drive head lamp by drive motor and rotates corresponding angle in level, vertical.
In conjunction with Fig. 1, the input end of described car body controller ECU 1 links to each other with steering wheel angle sensor 2, car speed sensor 3 and the high sensor 4 of axle respectively, the mouth of car body controller ECU 1 is connected with the input end of motor driver 5, described head lamp comprises the left and right head lamp 7,8 that is arranged in vehicle 9 the place aheads, and motor driver 5 is by steering hardware 6 actions of the left and right head lamp 7,8 of motor-driven.Described motor driver 5 built-in four chip for driving, described motor comprises first, second, third and fourth four motors, described four chip for driving link to each other with first, second, third and fourth motor respectively, first and second motor drives left headlamp 7 respectively and moves on level, vertical, and third and fourth motor drives right headlamp 8 respectively and moves on level, vertical.Described steering hardware 6 can about, carry out handling maneuver up and down, by auto body controller ECU 1 by 6 actions of motor driver 5 control steering hardwarees.Also can control respectively first, second, third and fourth four motors by a chip for driving.
In conjunction with Fig. 2, at first, under the situation that vehicle ignition, head lamp are lighted, the steering wheel angle signal that described car body controller ECU 1 receive direction dish rotary angle transmitter 2 sends, the vehicle speed signal that car speed sensor 3 sends, and the antero posterior axis altitude signal sent of the high sensor 4 of axle.Based on steering wheel angle signal, vehicle speed signal, car body controller ECU 1 calculates head lamp rotational angle in the horizontal direction; Based on the high signal of axle, car body controller ECU 1 calculates the rotational angle of head lamp in vertical.Secondly, described car body controller ECU 1 judges whether system breaks down, whether promptly detect steering wheel angle sensor 2, car speed sensor 3, the high sensor 4 of axle and motor driver 5 breaks down, if judged result is for denying, then at the corner of level, vertical head lamp is carried out the with an automatic light meter of level, vertical according to the head lamp that calculates, otherwise car body controller ECU 1 judges that this fault belongs to one or both in horizontal direction control fault and the vertical control fault.
In sum, core of the present invention is by fault is judged, classified, to implement corresponding handling at different faults when system's et out of order, still can realize the function of part self adaptation light modulation after the processing.
Claims (7)
1. the fault handling method of a self-adaptive headlamp system, this method comprises the step of following order:
(1) when system breaks down, car body controller ECU classifies to fault, and judges that this fault belongs to one or both in horizontal direction control fault, the vertical control fault;
(2) if car body controller ECU judges that this fault only belongs to the horizontal direction control fault, then head lamp is just forced back in the horizontal direction, with an automatic light meter on vertical; If car body controller ECU judges that this fault only belongs to the vertical control fault, then head lamp is just being forced back on vertical, with an automatic light meter in the horizontal direction; If car body controller ECU judges that this fault belongs to horizontal direction control fault and vertical control fault simultaneously, then just forces back on level, vertical head lamp.
2. the fault handling method of self-adaptive headlamp system according to claim 1, it is characterized in that: under the situation that vehicle ignition, head lamp are lighted, the steering wheel angle signal that described car body controller ECU receive direction dish rotary angle transmitter sends, the vehicle speed signal that car speed sensor sends, and the antero posterior axis altitude signal sent of the high sensor of axle, and calculate the corner of head lamp in level, vertical.
3. the fault handling method of self-adaptive headlamp system according to claim 1, it is characterized in that: the input end of described car body controller ECU links to each other with steering wheel angle sensor, car speed sensor and the high sensor of axle respectively, the mouth of car body controller ECU is connected with the input end of motor driver, described head lamp comprises left and right head lamp, and motor driver is by the steering hardware action of the left and right head lamp of motor-driven.
4. the fault handling method of self-adaptive headlamp system according to claim 1, it is characterized in that: described force back in the horizontal direction just to be meant force head lamp towards the dead ahead in the horizontal direction, describedly force head lamp to be got back to be lower than and near the position in dead ahead forcing back on the vertical just to be meant on vertical.
5. the fault handling method of self-adaptive headlamp system according to claim 1 and 2, it is characterized in that: described car body controller ECU judges whether system breaks down, if judged result is for denying, then at the corner of level, vertical head lamp is carried out the with an automatic light meter of level, vertical according to the head lamp that calculates, otherwise car body controller ECU judges that this fault belongs to a kind of in horizontal direction control fault and the vertical control fault or two kinds.
6. the fault handling method of self-adaptive headlamp system according to claim 3, it is characterized in that: built-in four chip for driving of described motor driver, described motor comprises first, second, third and fourth four motors, described four chip for driving link to each other with first, second, third and fourth motor respectively, first and second motor drives left headlamp respectively and moves on level, vertical, and third and fourth motor drives right headlamp respectively and moves on level, vertical.
7. the fault handling method of self-adaptive headlamp system according to claim 1 or 5, it is characterized in that: the described car body controller ECU that is meant with an automatic light meter is according to the corner of the head lamp that calculates in level, vertical, send and control signal to motor driver, motor driver makes the steering hardware of head lamp drive head lamp by drive motor and rotates corresponding angle in level, vertical.
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| CN201010131671.3A CN101823458B (en) | 2010-03-19 | 2010-03-19 | Fault treating method of self-adaptive headlamp system |
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| CN201010131671.3A CN101823458B (en) | 2010-03-19 | 2010-03-19 | Fault treating method of self-adaptive headlamp system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001338A (en) * | 2010-10-28 | 2011-04-06 | 奇瑞汽车股份有限公司 | Control method and device for safe driving of vehicle |
| CN102069749A (en) * | 2010-12-29 | 2011-05-25 | 奇瑞汽车股份有限公司 | Adaptive front lighting system (AFS) control method and device |
| CN103630852A (en) * | 2013-12-17 | 2014-03-12 | 奇瑞汽车股份有限公司 | Fault processing method and device of intelligent headlamp system |
| CN104553962A (en) * | 2014-12-12 | 2015-04-29 | 广西科技大学鹿山学院 | Redundant control method of vehicle follow-up headlamp |
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| JP2005132340A (en) * | 2003-10-10 | 2005-05-26 | Denso Corp | Device for automatically adjusting direction of light axis of vehicle headlight |
| US20060139938A1 (en) * | 2004-12-27 | 2006-06-29 | Toshihisa Hayami | Vehicle lighting apparatus |
| CN101365277A (en) * | 2008-09-22 | 2009-02-11 | 中国汽车技术研究中心 | Adaptive front lighting lamp system and monitoring processing method for failure thereof |
| CN101508267A (en) * | 2008-02-13 | 2009-08-19 | 株式会社小糸制作所 | Irradiating direction control system for a vehicle lamp |
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2010
- 2010-03-19 CN CN201010131671.3A patent/CN101823458B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005132340A (en) * | 2003-10-10 | 2005-05-26 | Denso Corp | Device for automatically adjusting direction of light axis of vehicle headlight |
| US20060139938A1 (en) * | 2004-12-27 | 2006-06-29 | Toshihisa Hayami | Vehicle lighting apparatus |
| CN101508267A (en) * | 2008-02-13 | 2009-08-19 | 株式会社小糸制作所 | Irradiating direction control system for a vehicle lamp |
| CN101365277A (en) * | 2008-09-22 | 2009-02-11 | 中国汽车技术研究中心 | Adaptive front lighting lamp system and monitoring processing method for failure thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001338A (en) * | 2010-10-28 | 2011-04-06 | 奇瑞汽车股份有限公司 | Control method and device for safe driving of vehicle |
| CN102069749A (en) * | 2010-12-29 | 2011-05-25 | 奇瑞汽车股份有限公司 | Adaptive front lighting system (AFS) control method and device |
| CN102069749B (en) * | 2010-12-29 | 2012-11-28 | 奇瑞汽车股份有限公司 | Adaptive front lighting system (AFS) control method and device |
| CN103630852A (en) * | 2013-12-17 | 2014-03-12 | 奇瑞汽车股份有限公司 | Fault processing method and device of intelligent headlamp system |
| CN103630852B (en) * | 2013-12-17 | 2016-05-18 | 奇瑞汽车股份有限公司 | A kind of intelligent head lamp system fault handling method and device |
| CN104553962A (en) * | 2014-12-12 | 2015-04-29 | 广西科技大学鹿山学院 | Redundant control method of vehicle follow-up headlamp |
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| CN101823458B (en) | 2014-07-16 |
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