CN107241825A - One kind realizes the uniform method of automobile trim turn button indicator lamp brightness and knob structure - Google Patents
One kind realizes the uniform method of automobile trim turn button indicator lamp brightness and knob structure Download PDFInfo
- Publication number
- CN107241825A CN107241825A CN201710337700.3A CN201710337700A CN107241825A CN 107241825 A CN107241825 A CN 107241825A CN 201710337700 A CN201710337700 A CN 201710337700A CN 107241825 A CN107241825 A CN 107241825A
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- China
- Prior art keywords
- knob
- brightness
- indicator lamp
- gear
- resistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/005—Electro-mechanical devices, e.g. switched
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The uniform method of automobile trim turn button indicator lamp brightness is realized the invention discloses one kind, this method controls the output of each gear PWM value using control circuit for pulse-width modulation, and the backlight of indicator lamp is used as by the use of LED, its brightness on each gear is set to be adjusted, so that the brightness on each gear reaches requirement.The present invention also discloses a kind of knob structure in addition, not only saves LED quantity, so as to save cost, also reduces the difficulty of light guide structure, efficiently solves brightness irregularities problem caused by the limitation because of light guide structure.
Description
Technical field
Realize that automobile trim turn button indicator lamp brightness is uniform the present invention relates to automobile trim turn button field, more particularly to one kind
Method and knob structure.
Background technology
Indicator lamp is all carried on the knob of current most of automotive trims, indicator lamp followed by knob rotation, it is desirable to indicate
Brightness reaches the brightness range of requirement in each gear.Solution in current industry is directly to use itself to carry
The potentiometer of LED backlight.Due to the limitation of knob numbers of gear steps, gear interval and structure space, it is impossible to carry LED using itself
During the potentiometer of backlight, then using light-guiding pillar or light guide ring, realize that indicator lamp light is equal with the LED illumination of two or more
It is even.But, the LED quantity that the program needs is more, and cost is high, and due to the limitation of structure space, LED quantity can not increase
Too much, cause to be difficult to make indicator lamp brightness meet requirement.
The content of the invention
It is a primary object of the present invention to provide one kind to realize the uniform method of automobile trim turn button indicator lamp brightness and rotation
Button structure, backlight is made with a light emitting diode, indicator lamp brightness is attained by requirement on each gear, is solved because of leaded light
Brightness irregularities problem caused by the limitation of structure.
To achieve the above object, the present invention provides one kind and realizes the uniform method of automobile trim turn button indicator lamp brightness, its
It is characterised by：Comprise the following steps：
When the PWM value of the output of S01 measurement control circuit for pulse-width modulation is 100%, each gear of the indicator lamp on knob
Brightness；
S02 adjusts control circuit for pulse-width modulation, the gear that brightness does not reach indicator lamp brightness requirement is reached brightness requirement；
S03 demarcates the PWM value of each gear, the PWM value of brightness most dark gear is demarcated as into 100% output, turn knob arrives it
His gear, adjusts PWM value, the indicator lamp brightness of each gear is reached brightness requirement, and records the PWM value of each gear,
Write the values into MCU；
S04 MCU export knob corresponding PWM value on different gears automatically.
Indicator lamp is set on described knob, the LED of backlight is provided in knob bottom；Described LED and arteries and veins
Wide modulation control circuit is connected；Control circuit for pulse-width modulation is also connected with MCU, to the defeated of the PWM value of control circuit for pulse-width modulation
Go out to be controlled.It is preferred that, the control circuit for pulse-width modulation includes triode Q40, resistance R1, resistance R2 and resistance R3；Institute
The base stage for stating triode Q40 is connected with resistance R1, and triode Q40 colelctor electrode and the negative electrode of LED are connected, triode Q40's
The ground connection parallel circuit in series of emitter stage and resistance R2 and resistance R3；The anode of the light emitting diode is connected with power supply KL30.
It is preferred that, the resistance R1 is connected with the MCU.
It is preferred that, the resistance that the adjustment control circuit for pulse-width modulation in the S03 steps is adjustment resistance R2 or resistance R3
Value, makes the gear that brightness does not reach indicator lamp brightness requirement reach brightness requirement.
The present invention also discloses a kind of knob structure for realizing the above method, including housing and knob body in addition；It is described
Housing bottom is provided with the circuit board being connected with LED；The knob body includes knob and knob character cap, the knob character
Cap is arranged on the upper surface of the knob；The bottom of the indicator lamp is provided with light guide ring.
It is preferred that, the light guide ring is fixedly connected with knob, during turn knob, and light guide ring follows knob.
It is preferred that, the light guide ring is fixedly connected with the casing, during turn knob, and light guide ring is fixed with housing, not followed by
Knob is acted.
It is preferred that, it is additionally provided with light-guiding pillar on the indicator lamp.
It is preferred that, the guide-lighting coil support for fixing light guide ring is additionally provided with the housing.
The present invention controls the output of each gear PWM value using control circuit for pulse-width modulation, and is used as indicator lamp by the use of LED
Backlight, its brightness on each gear is adjusted, so that the brightness on each gear reaches requirement, relatively
LED quantity is not only saved in prior art, so as to save cost, the difficulty of light guide structure is also reduced, efficiently solves
Because of brightness irregularities problem caused by the limitation of light guide structure.
Brief description of the drawings
Fig. 1 is electrical block diagram of the invention；
Fig. 2 is the structural representation of the knob structure of the present invention；
Fig. 3 is the sectional view of the knob structure of the present invention.
Description of reference numerals：
1 is circuit board；2 be LED；3 be knob；4 be knob character cap；5 be indicator lamp；6 be light guide ring；7 be light guide ring branch
Frame；8 be light-guiding pillar.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present embodiment provides one kind and realizes the uniform method of automobile trim turn button indicator lamp brightness, this method specifically include with
Lower step：
S01 sets indicator lamp on knob, and is provided for the LED of backlight in knob bottom；By LED and pulsewidth modulation
Circuit is controlled to be connected, control circuit for pulse-width modulation is connected to the MCU for controlling the PWM value of control circuit for pulse-width modulation to export
On；
When the PWM value of the output of S02 measurement control circuit for pulse-width modulation is 100%, each gear of the indicator lamp on knob
Brightness；
S03 adjusts control circuit for pulse-width modulation, the gear that brightness does not reach indicator lamp brightness requirement is reached brightness requirement；
S04 demarcates the PWM value of each gear, the PWM value of brightness most dark gear is demarcated as into 100% output, turn knob is arrived
Other gears, adjust PWM value, the indicator lamp brightness of each gear is reached brightness requirement, and record the PWM of each gear
Value, writes the values into MCU；
S05 MCU export knob corresponding PWM value on different gears automatically.
The control circuit for pulse-width modulation that the present embodiment is used includes triode Q40, resistance R1, resistance R2 and resistance R3,
Specific circuit structure is as shown in Figure 1.The circuit includes power supply KL30, LED, triode Q40, resistance R1, resistance R2, resistance
R3 and MCU；Triode Q40 base stage is sequentially connected in series with resistance R1 and MCU；Triode Q40 colelctor electrode and the negative electrode of LED connect
Connect, the anode of light emitting diode is connected on power supply KL30；The resistance R1 and resistance of the emitter stage of triode and ground connection R2's and
Join circuit connection.Wherein, power supply KL30 is connected to be connected on the positive pole of automobile batteries.
The concrete operating principle of the circuit is：（1）Resistance R2 and resistance R3 resistance is adjusted, makes triode Q40 colelctor electrodes
Acquired current value highest, i.e. PWM value is output as 100%, so that the brightness of light emitting diode is maximum；（2）By knob
Rotate on each gear, measure when PWM value is output as 100%, brightness of the indicator lamp on each gear；（3）Regulation electricity
R2 or resistance R3 is hindered, so that the electric current that the parallel circuit for adjusting resistance R2 and resistance R3 compositions is got, drags down triode Q40's
Level so that LED obtains higher current value, that is, improves the PMW values of output, so that brightness does not reach indicator lamp brightness and wanted
The gear asked reaches brightness requirement；（4）The PWM value of each gear is demarcated, the PWM value of brightness most dark gear is demarcated
For 100% output, knob is then rotated into other gears, PWM value is adjusted so that the brightness of the indicator lamp of each gear reaches
Brightness requirement, and the PWM value is recorded, and write the values into MCU；（5）MCU records the PWM value under each gear, works as rotation
When button rotates to different gears, MCU control circuit exports the PWM value under the gear automatically, so that the instruction of each gear
Lamp is attained by brightness requirement.
As Figure 2-3, the present embodiment also discloses the knob structure based on the above method in addition, and the structure is specifically included
Housing and knob body；Housing bottom is provided with circuit board 1, circuit board and is provided with LED 2；Knob body includes knob 3 and rotation
Button character cap 4, knob character cap 4 is fixed on the upper surface of knob 3；It is additionally provided with knob 3 under indicator lamp 5, indicator lamp 5
Portion is provided with the light guide ring 6 on the light guide of LED to indicator lamp, and the light guide ring 6 of the present embodiment is fixedly connected with knob 3, rotation
During knob, light guide ring follows knob；It is additionally provided with housing in the guide-lighting coil support 7 for fixing light guide ring 6, light guide ring
It is embedded in guide-lighting coil support 7.To increase the congregational rate of indicator lamp light, the present embodiment is also also provided with leaded light on indicator lamp
Post 8.
One LEDs of the knob structure make backlight, and knob character cap is fixed, and light guide ring is received after LED/light source,
On the light-guiding pillar for being delivered to knob indicator lamp, so that knob is all referred to when rotating to each rotation character cap place gear
Show illuminating for lamp.The LED control circuit for pulse-width modulation is by MCU control electric currents, and specific control method is as described above, no longer open up
Open and repeat.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. one kind realizes the uniform method of automobile trim turn button indicator lamp brightness, it is characterised in that：Comprise the following steps：
When the PWM value of the output of S01 measurement control circuit for pulse-width modulation is 100%, each gear of the indicator lamp on knob
Brightness；
S02 adjusts control circuit for pulse-width modulation, the gear that brightness does not reach indicator lamp brightness requirement is reached brightness requirement；
S03 demarcates the PWM value of each gear, the PWM value of brightness most dark gear is demarcated as into 100% output, turn knob arrives it
His gear, adjusts PWM value, the indicator lamp brightness of each gear is reached brightness requirement, and records the PWM value of each gear,
Write the values into MCU；
S04 MCU export knob corresponding PWM value on different gears automatically；
Indicator lamp is set on described knob, the LED of backlight is provided in knob bottom；Described LED is adjusted with pulsewidth
System control circuit is connected, and control circuit for pulse-width modulation is also connected with MCU.
2. realize the uniform method of automobile trim turn button indicator lamp brightness as claimed in claim 1, it is characterised in that：The arteries and veins
Wide modulation control circuit includes triode Q40, resistance R1, resistance R2 and resistance R3；The base stage of the triode Q40 and resistance R1
Series connection, triode Q40 colelctor electrode and the negative electrode of LED are connected, triode Q40 emitter stage and connecing for resistance R2 and resistance R3
Ground parallel circuit in series；The anode of the light emitting diode is connected with power supply KL30.
3. realize the uniform method of automobile trim turn button indicator lamp brightness as claimed in claim 2, it is characterised in that：The electricity
Resistance R1 is connected with the MCU.
4. realize the uniform method of automobile trim turn button indicator lamp brightness as claimed in claim 3, it is characterised in that：It is described
Adjustment control circuit for pulse-width modulation in S03 steps is adjustment resistance R2 or resistance R3 resistance value, brightness is not reached instruction
The gear of lamp brightness requirement reaches brightness requirement.
5. a kind of knob structure for realizing method as claimed in claim 1, it is characterised in that including housing and knob body；Institute
State housing bottom and be provided with the circuit board being connected with LED,；The knob body includes knob and knob character cap, the knob
Character cap is arranged on the upper surface of the knob；The bottom of indicator lamp is provided with light guide ring.
6. knob structure as claimed in claim 5, it is characterised in that the light guide ring is fixedly connected with knob, turn knob
When, light guide ring follows knob.
7. knob structure as claimed in claim 5, it is characterised in that the light guide ring is fixedly connected with the casing.
8. knob structure as claimed in claim 5, it is characterised in that be additionally provided with light-guiding pillar on the indicator lamp.
9. knob structure as claimed in claim 5, it is characterised in that be additionally provided with the housing for fixing light guide ring
Guide-lighting coil support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337700.3A CN107241825B (en) | 2017-05-15 | 2017-05-15 | A kind of uniform method of realization automobile trim turn button indicator lamp brightness and knob structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337700.3A CN107241825B (en) | 2017-05-15 | 2017-05-15 | A kind of uniform method of realization automobile trim turn button indicator lamp brightness and knob structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107241825A true CN107241825A (en) | 2017-10-10 |
| CN107241825B CN107241825B (en) | 2019-03-22 |
Family
ID=59984921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710337700.3A Active CN107241825B (en) | 2017-05-15 | 2017-05-15 | A kind of uniform method of realization automobile trim turn button indicator lamp brightness and knob structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107241825B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777898A (en) * | 2018-06-05 | 2018-11-09 | 深圳市廿年科技有限公司 | A kind of knob code switch and intelligent dimming method |
| CN109640449A (en) * | 2018-12-27 | 2019-04-16 | 惠州市德赛西威汽车电子股份有限公司 | A kind of gear indicator lamp brightness automatic control circuit based on sunlight sensor |
| CN113119722A (en) * | 2021-03-04 | 2021-07-16 | 深圳华美和汽车部件制造有限公司 | Calibration method of knob type electronic gear shifter, electronic equipment and storage medium |
| CN113513588A (en) * | 2021-04-22 | 2021-10-19 | 宁波高发汽车控制系统股份有限公司 | Detection method and system of knob gear shifter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096620A2 (en) * | 2008-02-26 | 2009-09-02 | Denso Corporation | Indicator drive system |
| CN102729827A (en) * | 2012-06-25 | 2012-10-17 | 惠州市德赛西威汽车电子有限公司 | Automotive trim knob structure |
| 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 |
| CN205196024U (en) * | 2015-09-30 | 2016-04-27 | 上汽通用汽车有限公司 | Whole back frame light governing system of distributing type principal and subordinate based on CAN bus |
-
2017
- 2017-05-15 CN CN201710337700.3A patent/CN107241825B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096620A2 (en) * | 2008-02-26 | 2009-09-02 | Denso Corporation | Indicator drive system |
| CN102729827A (en) * | 2012-06-25 | 2012-10-17 | 惠州市德赛西威汽车电子有限公司 | Automotive trim knob structure |
| 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 |
| CN205196024U (en) * | 2015-09-30 | 2016-04-27 | 上汽通用汽车有限公司 | Whole back frame light governing system of distributing type principal and subordinate based on CAN bus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777898A (en) * | 2018-06-05 | 2018-11-09 | 深圳市廿年科技有限公司 | A kind of knob code switch and intelligent dimming method |
| CN108777898B (en) * | 2018-06-05 | 2024-05-10 | 深圳市杜莎科技有限公司 | Knob coding switch and intelligent dimming method |
| CN109640449A (en) * | 2018-12-27 | 2019-04-16 | 惠州市德赛西威汽车电子股份有限公司 | A kind of gear indicator lamp brightness automatic control circuit based on sunlight sensor |
| CN113119722A (en) * | 2021-03-04 | 2021-07-16 | 深圳华美和汽车部件制造有限公司 | Calibration method of knob type electronic gear shifter, electronic equipment and storage medium |
| CN113513588A (en) * | 2021-04-22 | 2021-10-19 | 宁波高发汽车控制系统股份有限公司 | Detection method and system of knob gear shifter |
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| Publication number | Publication date |
|---|---|
| CN107241825B (en) | 2019-03-22 |
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