CN202496123U - Full electronic automotive lamp fault automatic detection and feedback system - Google Patents
Full electronic automotive lamp fault automatic detection and feedback system Download PDFInfo
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- CN202496123U CN202496123U CN201120507020XU CN201120507020U CN202496123U CN 202496123 U CN202496123 U CN 202496123U CN 201120507020X U CN201120507020X U CN 201120507020XU CN 201120507020 U CN201120507020 U CN 201120507020U CN 202496123 U CN202496123 U CN 202496123U
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Abstract
A full electronic automotive lamp fault automatic detection and feedback system is characterized by comprising a bulb power execution device for controlling turning on/off of an automotive bulb and detecting a current value of current flow flowing the automotive bulb; a photosensitive diode for detecting whether the current automotive lamp is turned on or not; an amplifying and A/D sampling conversing module used for amplifying, shaping, sampling the voltage value generated by light rays received by the photosensitive diode and conversing the processed signals into digital voltage signals for an automotive lamp control module; the automotive lamp control module for receiving a control command on an automotive main control system bus, sending a turning on/off command to a bulb power execution device, receiving a current load data from the bulb power execution device and the digital voltage signals generated by the amplifying and A/D sampling conversing module, judging whether the lamp is working normally or not and sending the lamp working state information to an automotive main control system by a bus.
Description
Technical field
The utility model belongs to the automotive electronics technical field of automation; Relating in particular to a kind of all electronic automobile lamp fault detects and reponse system automatically; Be used in each car light module of all electronic automobile that possesses bus control interface; Detect the operating state of car light, in time the car light fault is fed back to master control system.
Background technology
Current, the control of the car light of automobile is simple relatively, only be power supply open and close two kinds of operations.Whether operate as normal, especially direction indicator lamp and all light that place rear view of vehicle are according to driver's the normal opening/closing of operation for car light, and the driver has no way of learning.On novel all electronic automobile, adopted bus control technology, the switch command of car light is separated with actuator, controls through the bus transfer command packet, but does not still have to solve the monitoring to the car light working condition.The car light of automobile is made up of preceding high beam, preceding dipped headlights, front and back direction indicator lamp, stop lamp, reversing lamp, front and back fog lamp, clearance lamps etc., is very important safety devices.Whether the car light of automobile is in proper working order, often directly related with the safety traffic of automobile, breaks down such as rear brake lamp, when brake, will increase by the probability that knocks into the back, accidents caused.
Regrettably, the operating state of automobile lamp is not monitored in the electronic system of automobile for a long time.And important car light signal such as direction indicator lamp, stop lamp, reversing lamp operate as normal whether, the driver who is sitting in the driver's cabin can't see.
The utility model content
In order to overcome the defective of prior art, the utility model provides a kind of all electronic automobile lamp fault to detect automatically and reponse system, and its spy is to comprise:
Bulb power performer 1 is used for the Kai Heguan of Control of Automobile bulb, and detects the current current value that flows through autobulb;
Photodiode 2, be used for detecting when front car light whether luminous;
Amplify and A/D sample conversion module 3, be used for to the photodiode 2 received magnitudes of voltage that light produced amplify, integer, sampling, and convert the digital voltage signal lamp control module of buying car in installments to and use;
Car light control module 4; Be used to receive control command on the automobile master control system bus, send on/off commands, receive the digital voltage signal that is produced from the current loading data of said bulb power performer 2 and said amplification and A/D sample conversion module 3 to bulb power performer 2; Judge whether operate as normal of light, and the light work state information is sent to the automobile master control system through bus.
All electronic automobile lamp fault according to the utility model detects and reponse system automatically; Its spy be if the detected current value of bulb power performer in threshold range and the illumination that photodiode received on threshold range, then the car light control module is just sent light operate as normal packet to the automobile master control system; Otherwise, send the undesired packet of light work.
All electronic automobile lamp fault according to the utility model detects and reponse system automatically, and its spy is before the car light control module receives that light is opened the order bag and carried out the operation of bulb galvanization, to read the current magnitude of voltage of photodiode earlier as being worth zero point;
After bulb feeds electric current, the voltage readings of photosensitive tube is deducted value at zero point, the foundation of whether working as differentiation light.
All electronic automobile lamp fault according to the utility model detects and reponse system automatically, and its spy is to dissimilar light different threshold values to be set.
Automatically detect and reponse system according to all electronic automobile lamp fault of the utility model, its spy is also to comprise digital filter, is used for the voltage of the photodiode that reads is carried out digital filtering, the elimination interference signal.
Automatically detect and reponse system according to all electronic automobile lamp fault of the utility model, its spy be if photodiode pipe or bulb power performer both one of detect unusually, judge that promptly light is unusual; If photodiode and bulb power performer detect the situation of fault simultaneously, represent that then transducer possibly break down in this car light module.
The utility model is realized letting the driver of all electronic automobile know the car light working condition in the process of moving at any time through adding two kinds of monitoring means to the car light working condition, in time the fault car light is keeped in repair, and has reduced accident potential.
Description of drawings
Fig. 1 is the structural representation of automatic detection of the utility model all electronic automobile lamp fault and reponse system.
Embodiment
For the above-mentioned purpose, the feature and advantage that make the utility model are more obviously understandable, the utility model is done further detailed explanation below in conjunction with accompanying drawing and embodiment.
The utility model is used for being used to detect the operating state of car light in each car light module of all electronic automobile that possesses bus control interface, in time the car light fault is fed back to master control system.Through this platform of automobile all electronic project, all power supply is supplied with and cab signal control has all focused on the bus, and this just provides condition for the monitoring that we solve the automobile lamp operating state.In having all electronic automobile of bus, the control of car light not merely is a simple switch.The lighting switch action that the driver carries out on guidance panel only forms the order bag and is transferred to intelligentized car light in bus, after car light receives switch command, carry out the through and off of vehicle light power supply.
Because existing car light all is intelligentized car light; Have MCU and relevant performance element,, just can monitor the actual working state of car light if add detection module on this basis; Through sending on the bus after the MCU processing, main control module just can be understood the operating state of current each car light.When car light breaks down, just can in time keep in repair by driver, avoid potential accident to take place.
Fig. 1 is the structural representation of automatic detection of the utility model all electronic automobile lamp fault and reponse system; The system of the utility model is made up of following several sections:
Bulb power performer 1 is used for the Kai Heguan of Control of Automobile bulb, and detects the current current value that flows through autobulb;
Photodiode 2, be used for detecting when front car light whether luminous;
Amplify and A/D sample conversion module 3, be used for to the received magnitude of voltage that light produced of photodiode amplify, integer, sampling, and convert the digital voltage signal lamp control module of buying car in installments to and use;
Car light control module 4; Be used to receive control command on the automobile master control system bus, send on/off commands, receive the digital voltage signal that is produced from the current loading data of said bulb power performer and said amplification and A/D sample conversion module to the bulb power performer; Judge whether operate as normal of light; And the light work state information sent to the automobile master control system through bus, and having MCU in the car light control module, its resolves the control command bag of carrying out on bus; Handle the illumination data of bulb electric current and photodiode; Send the car light state data packets to master control system.
Whether car light operate as normal, and the mode that can detect has two kinds:
Whether front car light is worked as in the photosensitive tube detection luminous;
Detection is flow through the electric current of car light whether in normal range (NR).
Car light, photosensitive tube, this three of current detection circuit might be broken down.The utility model takes the most conservative mode to diagnose the operating state of car light: if photosensitive tube or current detecting both one of note abnormalities, judge that promptly light is unusual, on bus, send the lighting fault packet.If photosensitive tube and current detecting detect the situation of fault simultaneously, in the lighting fault packet, this situation can be described, possibly break down to remind the transducer in this car light module of driver, for traffic safety, must change.
Current detection technology is simple relatively, ripe.Photosensitive tube detects the requirement that only do not reach that car light sends, and this process may receive the influence of daylight, other light etc.The utility model takes following method to filter this type interference:
Receiving that light opens the order bag, carry out before the operation of bulb galvanization, reading the current voltage of photosensitive tube earlier as zero point;
After bulb feeds electric current, the voltage readings of photosensitive tube is deducted value at zero point, the foundation of whether working as differentiation light;
Different light has different illumination, so will different threshold values be set to dissimilar light (such as headlight, reversing lamp), could judge correctly whether the lamp pass works;
Read the process of photosensitive tube voltage and will pass through digital filtering, the elimination interference signal, therefore, the utility model also comprises digital filter, is used for the voltage of the photodiode that reads is carried out digital filtering, the elimination interference signal.
This programme can detect whether operate as normal of car bulb effectively; On all electronic automobile platform; Give master control system through bus with the lighting fault message transmission, and then point out the driver in time to change the car light of fault, avoid the traffic accident that causes because of lighting fault.
Native system can reach following functional requirement:
When master control system when specific car light control module is sent light and is opened control command, this module can receive this order, control light is opened, and monitors the actual result that light is opened simultaneously.If bulb (electric current in threshold range and illumination on threshold range) in proper working order then sends light operate as normal packet; Otherwise, send the undesired packet of light work.
Be example with the left steering lamp below, the whole system operation flow process be described:
The driver opens the left steering lamp switch through the integrated control lever of direction indicator lamp.All electronic automobile master control system detects the driver and has opened the left steering lamp switch, and generation light is opened the order bag and sent on the bus.The content of this order bag comprises:
● left steering lamp identification code (ID)
● lamp closes opens command word
● check code
All smart machines that are articulated on the bus all can be received this order bag.Through parsing, finally have only the car light control module of left steering lamp that it is responded to identification code.This module is at first sent the reply data bag, and this order of notice master control system receives.
Then, following process is carried out in the circulation of left steering lamp car light control module:
1) reads current brightness value as illumination value at zero point and preservation through amplifying with A/D conversion sampling module;
2) connect power actuators spare power supply, light bulb;
3) read current brightness value and deduct illumination value at zero point through amplifying, it is designated as L here as current brightness value with A/D conversion sampling module;
4) the present load current value of readout power performer is designated as I;
5) judge that L value and I value are whether all in allowed band.If go beyond the scope, send the lighting fault packets of information and give master control system.The content of this packet comprises:
● left steering lamp identification code (ID)
● the error message command word
● the error message code has comprised the data of illumination and electric current two aspects
● check code
6) close power actuators spare power supply, close bulb;
7) read current brightness value and deduct illumination value at zero point through amplifying as current brightness value L with A/D conversion sampling module;
8) the present load current value I of readout power performer;
9) at this moment, L should be smaller or equal to 0, I should be 0.Judge that L value and I value are whether all in allowed band.If go beyond the scope, send the lighting fault packets of information and give master control system.
10) time-delay 500ms repeats said process, forms flicker effect.
When the driver closes the left steering lamp switch through the integrated control lever of direction indicator lamp, whole process with open similar.All electronic automobile master control system detects the driver and has closed the left steering lamp switch, generates light shutdown command bag and sends on the bus.The left steering lamp is carried out the light shutdown command, and judges L and I value whether all in allowed band, and provides the reply data bag.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although with reference to preferred embodiment the utility model has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can make amendment to the embodiment of the utility model perhaps is equal to replacement to the part technical characterictic; And not breaking away from the spirit of the utility model technical scheme, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (2)
1. an all electronic automobile lamp fault detects and reponse system automatically, and its spy is to comprise:
Bulb power performer (1) is used for the Kai Heguan of Control of Automobile bulb, and detects the current current value that flows through autobulb;
Photodiode (2), be used for detecting when front car light whether luminous;
Amplify and A/D sample conversion module (3), be used for to the received magnitude of voltage that light produced of photodiode (2) amplify, integer, sampling, and convert the digital voltage signal lamp control module of buying car in installments to and use;
Car light control module (4); Be used to receive control command on the automobile master control system bus, send on/off commands, receive the digital voltage signal that is produced from the current loading data of said bulb power performer (1) and said amplification and A/D sample conversion module (3) to bulb power performer (1); Judge whether operate as normal of light, and the light work state information is sent to the automobile master control system through bus.
2. automatically detect and reponse system according to claim 1 all electronic automobile lamp fault, its spy is also to comprise digital filter, is used for the voltage of the photodiode that reads is carried out digital filtering, the elimination interference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120507020XU CN202496123U (en) | 2011-12-08 | 2011-12-08 | Full electronic automotive lamp fault automatic detection and feedback system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120507020XU CN202496123U (en) | 2011-12-08 | 2011-12-08 | Full electronic automotive lamp fault automatic detection and feedback system |
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| Publication Number | Publication Date |
|---|---|
| CN202496123U true CN202496123U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120507020XU Expired - Fee Related CN202496123U (en) | 2011-12-08 | 2011-12-08 | Full electronic automotive lamp fault automatic detection and feedback system |
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| CN (1) | CN202496123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580400A (en) * | 2017-09-25 | 2018-01-12 | 南京律智诚专利技术开发有限公司 | The intelligence control system and method for a kind of indoor lamp |
| CN111301283A (en) * | 2020-03-25 | 2020-06-19 | 北京汽车股份有限公司 | Vehicle lamp control method, device and system and vehicle |
| CN114590192A (en) * | 2021-11-04 | 2022-06-07 | 江苏叶迪电子有限公司 | Automobile lamp with automatic fault detection and regulation functions |
-
2011
- 2011-12-08 CN CN201120507020XU patent/CN202496123U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580400A (en) * | 2017-09-25 | 2018-01-12 | 南京律智诚专利技术开发有限公司 | The intelligence control system and method for a kind of indoor lamp |
| CN111301283A (en) * | 2020-03-25 | 2020-06-19 | 北京汽车股份有限公司 | Vehicle lamp control method, device and system and vehicle |
| CN114590192A (en) * | 2021-11-04 | 2022-06-07 | 江苏叶迪电子有限公司 | Automobile lamp with automatic fault detection and regulation functions |
| CN114590192B (en) * | 2021-11-04 | 2023-08-08 | 江苏叶迪电子有限公司 | Automobile lamp with automatic fault detection and adjustment function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121017 Termination date: 20131208 |