CN201114097Y - Automobile LED display and function press key backlight control circuit - Google Patents
Automobile LED display and function press key backlight control circuit Download PDFInfo
- Publication number
- CN201114097Y CN201114097Y CNU200720045707XU CN200720045707U CN201114097Y CN 201114097 Y CN201114097 Y CN 201114097Y CN U200720045707X U CNU200720045707X U CN U200720045707XU CN 200720045707 U CN200720045707 U CN 200720045707U CN 201114097 Y CN201114097 Y CN 201114097Y
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- 238000004378 air conditioning Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Abstract
The utility model discloses an automobile LED display and function keypress backlight control circuit which comprises a nodding switch, a small lamp switch, a backlight adjustment switch, instrument display backlight connected with a combined instrument, and an automobile body controller. The utility model is characterized in that: the nodding switch and the small lamp switch are connected with the automobile body controller through a CAN bus; and the backlight adjustment switch is connected with the LED display and function keypress backlight circuit through the combined instrument, the CAN bus and a control module. With the structure, compared with the prior art: the prior direct control by the switch is changed into the network control through the CAN bus in the automobile, control modules respectively control the backlight of electric appliances used by the control modules, thereby achieving the intention of saving wire bundles; a time delay device is arranged inside the combined instrument, and performs time delay to the backlight of partial electric appliances connected through the CAN bus when the automobile body controller detects the information that the small lamp switch is shut off, thereby overcoming the defect that the function keypresses in the automobile such as glass lifting switch and so on, can not be clearly seen after the small lamp switch is shut off.
Description
Technical field
The utility model relates to the auto electric control system, and particularly a kind of automobile LED shows and the function button backlight control circuit.
Background technology
In order to allow the driver see various function buttons clearly at night, grasp driving information, thereby safer driving, the control circuit operation principle backlight of general automobile is, control by the lampet switch, when the lampet of vehicle is opened,, LED is shown and the backlight illumination of function button is implemented to control according to the signal difference of the duty ratio of by-pass cock output by light by-pass cock output pwm signal.
But along with increasing gradually of car load electrical appliance, more and more higher to the requirement of car load security performance simultaneously, must cause the increase of wire harness cost and the client can't see function key information in the car clearly after closing the lampet switch defective.
The utility model content
Technical problem to be solved in the utility model is at the deficiencies in the prior art, to provide a kind of automobile LED to show and the function button backlight control circuit, to reach the purpose of controlling the backlight circuit of each electrical appliance with in-vehicle network respectively.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of automobile LED shows and the function button backlight control circuit, comprise the switch of nodding, little lamp switch, by-pass cock backlight be connected with combination instrument instrument display backlight, car body controller, it is characterized in that: the described switch of nodding, little lamp switch are connected with car body controller by the CAN bus; Described by-pass cock backlight is connected with backlight circuit by combination instrument, CAN bus, control module.
Automobile LED shows and the function button backlight control circuit, and described control module comprises the passenger side module, drives side form piece, air-conditioning control module, speaker module, luggage case module.
Automobile LED shows and the function button backlight control circuit that described luggage case module is connected with right back door module, left back door module by the LIN bus.
Automobile LED shows and the function button backlight control circuit, is provided with delay circuit backlight in the described combination instrument, controls delay circuit time-delay closing backlight control signal backlight after detecting the switch of nodding, lampet switch shutdown signal by car body controller.
Automobile LED shows and the function button backlight control circuit, adopt said structure, compared with prior art: change into by CAN bus network control in the car by the direct control of traditional switch, control the backlight of each electrical appliance respectively, thereby reach the purpose of saving wire harness by each control module; At the inner time-delay mechanism that increases of combination instrument, after car body controller detects the information that little lamp switch closes, the backlight of part electrical appliance that connects by the CAN bus delayed time, thereby solution can't be seen the interior defective such as function buttons such as window lifting switch of car clearly after closing the lampet switch.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 shows and function button backlight control circuit structural representation for the utility model automobile LED;
In Fig. 1,1, by-pass cock backlight; 2, little lamp switch; 3, the switch of nodding; 4, combination instrument; 5, CAN bus; 6, car body controller; 7, passenger side module; 8, drive the side form piece; 9,10, air-conditioning control module; 11, speaker module; 12, luggage case module; 13, LIN bus; 14, right back door module; 15, left back door module.
Embodiment
As shown in Figure 1, a kind of automobile LED shows and the function button backlight control circuit, comprises the switch 3 of nodding, lampet switch 2, by-pass cock backlight 1 and combination instrument 4
The mileometer LED-backlit 16, various pointer mark of being connected is backlight 17, and it is backlight 18 that dot matrix shields, and car body controller 6 is backlight 19 with Der StandlichtScheinwerfer und Parkleuchtenschalter respectively, fog lamp switch is backlight 20, warning light is backlight 21, middle passage backlight 22 is connected.Above-mentioned backlight adopts the LED illumination.The described switch 3 of nodding, lampet switch 2 are connected with car body controller 6 by CAN bus 5; Described by-pass cock backlight 1 is connected with backlight circuit by combination instrument 4, CAN bus 5, control module.
Described control module comprises passenger side module 7, and passenger side module 7 and offside door open the light and backlight 23 be connected.Drive that side form piece 8 is backlight 24 with the offside door switch respectively, protection of the child switch backlight 25 is connected.Air- conditioning control module 9,10 is backlight 27 with control panel 1 key-press backlight 26, control panel 1LED respectively, control panel 2 key-press backlights 28, control panel 2LED backlight 29 are connected.Speaker module 11 is connected with sound equipment control panel key-press backlight 30, sound equipment control panel LED-backlit 31 respectively.Luggage case module 12 is backlight 32 with the electrically driven curtain switch respectively, the fuel tank cap switch is backlight 33, luggage case backlight 34,35 is connected.Described luggage case module 12 is connected with right back door module 14, left back door module 15 by LIN bus 13.Right back door module 14 is connected with door courtesy SW rear RH backlight 36; Left back door module 15 is connected with door courtesy SW rear LH is backlight.
The The whole control circuit is by ignition switch 3, by-pass cock 1 backlight, car body controller 6 and electrical appliance backlight LED and LCD form, the signal that on CAN bus 5, exists lampet switch 2 to open, combination instrument 4 receives the signal of backlight switch 1 simultaneously, send regulating command backlight by combination instrument 4 by CAN bus 5 and give each control module, wherein luggage case module 12 can pass to two back door modules by LIN bus 13 with this information, microprocessor by inside modules carries out adjusting backlight, setting maximum backlight illumination is A, by the gauge internal microprocessor to carrying out 8 equal portions and export to other controller by network and realize totally 8 other brilliance controls of level from the pwm signal of switch, both A*30%-A*100%[cd/m2], when car body controller 6 detects ignition switch 3 opening signals by CAN bus 5, lampet switch 2 is opened simultaneously, can be by backlight control of 1 pair of The whole control circuit of light by-pass cock, the communication of The whole control circuit realizes by CAN bus 5 networks, therefore significantly reduced the use of wire harness, when car body controller 6 detects the signal that ignition switch 3 is closed and lampet switch 2 cuts out, delay circuit by combination instrument 4 inside continues to whole C AN bus 5 network signalings, makes car load generation backlight delay time.
Claims (4)
1, a kind of automobile LED shows and the function button backlight control circuit, comprise the switch of nodding (3), little lamp switch (2), by-pass cock backlight (1) be connected with combination instrument (4) instrument display backlight, car body controller (6), it is characterized in that: the described switch of nodding (3), little lamp switch (2) are connected with car body controller (6) by CAN bus (5); Described by-pass cock backlight (1) is connected with backlight circuit by combination instrument (4), CAN bus (5), control module.
2, automobile LED according to claim 1 shows and the function button backlight control circuit, it is characterized in that: described control module comprises passenger side module (7), drives side form piece (8), air-conditioning control module (9,10), speaker module (11), luggage case module (12).
3, automobile LED according to claim 2 shows and the function button backlight control circuit, it is characterized in that: described luggage case module (12) is connected with right back door module (14), left back door module (15) by LIN bus (13).
4, automobile LED according to claim 1 shows and the function button backlight control circuit, it is characterized in that: described combination instrument is provided with delay circuit backlight in (4), detects control delay circuit time-delay closing backlight control signal backlight after the switch of nodding (3), little lamp switch (2) shutdown signal by car body controller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720045707XU CN201114097Y (en) | 2007-08-28 | 2007-08-28 | Automobile LED display and function press key backlight control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720045707XU CN201114097Y (en) | 2007-08-28 | 2007-08-28 | Automobile LED display and function press key backlight control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114097Y true CN201114097Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720045707XU Expired - Fee Related CN201114097Y (en) | 2007-08-28 | 2007-08-28 | Automobile LED display and function press key backlight control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201114097Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391668A (en) * | 2013-07-01 | 2013-11-13 | 延锋伟世通电子科技（上海）有限公司 | Intelligent backlight dimming system for vehicle on-board instruments |
| CN104869688A (en) * | 2014-12-18 | 2015-08-26 | 北汽福田汽车股份有限公司 | Backlight adjustment switch with working indication lamp brightness degradation |
| CN105128732A (en) * | 2015-08-28 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Backlight adjusting system and method for automobile |
| CN112787651A (en) * | 2021-01-15 | 2021-05-11 | 奇瑞汽车股份有限公司 | Automobile combination switch, control system and method |
-
2007
- 2007-08-28 CN CNU200720045707XU patent/CN201114097Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391668A (en) * | 2013-07-01 | 2013-11-13 | 延锋伟世通电子科技（上海）有限公司 | Intelligent backlight dimming system for vehicle on-board instruments |
| CN104869688A (en) * | 2014-12-18 | 2015-08-26 | 北汽福田汽车股份有限公司 | Backlight adjustment switch with working indication lamp brightness degradation |
| CN105128732A (en) * | 2015-08-28 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Backlight adjusting system and method for automobile |
| CN105128732B (en) * | 2015-08-28 | 2017-11-17 | 安徽江淮汽车集团股份有限公司 | A kind of automobile using backlight regulating system and method |
| CN112787651A (en) * | 2021-01-15 | 2021-05-11 | 奇瑞汽车股份有限公司 | Automobile combination switch, control system and method |
| CN112787651B (en) * | 2021-01-15 | 2024-03-26 | 奇瑞汽车股份有限公司 | Automobile combination switch, control system and method |
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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: 20080910 Termination date: 20120828 |