CN104442549A - Brake lamp control unit - Google Patents
Brake lamp control unit Download PDFInfo
- Publication number
- CN104442549A CN104442549A CN201310415448.5A CN201310415448A CN104442549A CN 104442549 A CN104442549 A CN 104442549A CN 201310415448 A CN201310415448 A CN 201310415448A CN 104442549 A CN104442549 A CN 104442549A
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- CN
- China
- Prior art keywords
- magnet ring
- control circuit
- brake lamp
- brake
- hall element
- Prior art date
- 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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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
A brake lamp control unit comprises a body and a magnet ring; the magnet ring is used for sleeving an inner piston of a brake pump. The body comprises a base, a circuit board and a Hall sensor; the circuit board is integrated to a control circuit; the control circuit is used for controlling on or off of a brake lamp; the Hall sensor is integrated to the circuit board and electrically connected with the control circuit; the body is installed to an outer wall of the brake pump in a plane where the magnet ring locates when the Hall sensor deviates from an initial position of the inner piston. When braking starts and a brake pedal drives the inner piston to move so that the magnet ring arrives or exceeds the Hall sensor, the Hall sensor outputs a first level signal, and the control circuit controls on of the brake lamp; when braking stops and the inner piston drives the magnet ring to pass by the Hall sensor and return to the initial position, the Hall sensor outputs a second level signal, and the control circuit controls off of the brake lamp. The brake lamp control unit is capable of accurately judging a braking action, the failure caused by poor contact is avoided, and the service life is longer.
Description
Technical field
The present invention relates to automobile lamp control field, particularly relate to a kind of brake lamp coutrol device.
Background technology
Brake lamp is contained in automobile tail both sides, avoids a kind of Vehicular lamp knocked into the back for the vehicle warned below.Usually, brake lamp is controlled by automobile brake light switch, and general automobile brake light switch is mechanical structure, forms primarily of driving push rod, retracing spring, electrical contact shell fragment and contact.Drive push rod conduction brake pedal braking maneuver, directly or indirectly realize contact deciliter.Stop lamp switch is arranged on brake-pedal support, switch connection when stepping on brake pedal, ECU(Electronic Control Unit, electronic control unit) obtain speed-slackening signal, brake lamp is lighted in control, meanwhile, torque converter lockup disengaging of clutch, causes engine off during to prevent drive wheel seized.
But above-mentioned automobile brake lamp has following shortcoming: the service condition of perception brake system indirectly, operation, driver train complexity, dimension chain link is many, and stroke accumulated error is large, and brake judgment accuracy is lower; Contact stands electric current for a long time, contact spring electric arc impacts, and easily loses efficacy because ablation causes bad contact in contact; Each part easily reduces performance or fatigue failure along with after brake operation frequently, and the life-span is short, the highest about 1,000,000 times; Material requirements is high, complex structure, and manufacture difficulty, environmental protection ability is weak.
Summary of the invention
Based on this, be necessary lower for general automobile brake lamp brake judgment accuracy, easily lost efficacy because ablation causes bad contact in contact, the life-span is shorter and structure more complicated with manufacture more difficult problem, provide that a kind of brake judgment accuracy is higher, mechanical contact, life-span longer and structure comparatively simple with manufacture easier brake lamp coutrol device.
A kind of brake lamp coutrol device, comprise body and magnet ring, described magnet ring is for being sheathed on the inner carrier of brake pump, and described body comprises:
Base;
Circuit card, is installed in described base, is integrated with control circuit, and described control circuit is used for control and lights or extinguish brake lamp;
Hall element, to be integrated on described circuit card and to be electrically connected with described control circuit;
Described body is installed on the outer wall of described brake pump, and the plane at described magnet ring place when making described Hall element depart from described inner carrier initial position; When braking maneuver, when brake pedal drives described inner carrier to move to make described magnet ring to arrive or crosses the line of centers of described Hall element, described Hall element exports the first level signal to described control circuit, described control circuit controls to light described brake lamp, when braking maneuver is cancelled, described inner carrier drives described magnet ring when the line of centers of described Hall element resets to initial position, described Hall element exports second electrical level signal to described control circuit, and described control circuit controls to extinguish described brake lamp.
Wherein in an embodiment, between the periphery of described circuit card and described base, be sealed with casting glue.
Wherein in an embodiment, described magnet ring has the two poles of the earth, is distributed in respectively on two surfaces of described magnet ring.
Wherein in an embodiment, described Hall element is unipolarity Hall switch.
Above-mentioned brake lamp coutrol device, is installed on brake pump, directly responds to the motion of inner carrier of brake pump but not the motion of brake pedal, intermediary agency is less, higher to brake judgment accuracy, meanwhile, mechanical contacts, without kinematic mechanism, there is not the inefficacy because bad contact causes, in addition, use semiconductor devices, life-span can reach millions of times, improves service life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the brake lamp coutrol device of an embodiment;
Fig. 2 is the scheme of installation of brake lamp coutrol device in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As depicted in figs. 1 and 2, in one embodiment, a kind of brake lamp coutrol device, comprises body 110 and magnet ring 120.Magnet ring 120 is for being sheathed on the inner carrier 52 of brake pump 50, and magnet ring 120 has the two poles of the earth, is distributed in respectively on two surfaces of magnet ring 120.Body 110 comprises base 112, circuit card 114 and Hall element 116.Base 112 is adopted made of plastic.Circuit card 114 is installed in base 112, and circuit card 114 is integrated with control circuit, and this control circuit is used for control and lights or extinguish brake lamp, is sealed with casting glue 118 between the periphery of circuit card 114 and base 112.Hall element 116 to be integrated on circuit card 114 and to be electrically connected with control circuit, and usually, Hall element 116 is unipolarity Hall switch.
Body 110 is installed on the outer wall of brake pump 50 by base 112, during installation, and the plane at magnet ring 120 place when making Hall element 116 depart from inner carrier 52 initial position.When braking maneuver, when brake pedal drive inner carrier 52 moves and makes magnet ring 120 arrive or cross the line of centers of Hall element 116, magnetic direction changes, and Hall element 116 exports the first level signal to control circuit, and control circuit controls to light brake lamp.When braking maneuver is cancelled, inner carrier 52 drives magnet ring 120 when the line of centers of Hall element 116 resets to initial position, magnetic direction changes again, and Hall element 116 exports second electrical level signal to control circuit, and control circuit controls to extinguish brake lamp.Wherein the first level signal and second electrical level signal are contrary level signal, and the two both can be high level signal, also can be low level signals.
Above-mentioned brake lamp coutrol device, is installed on brake pump 50, directly responds to the motion of inner carrier 52 of brake pump 50 but not the motion of brake pedal, intermediary agency is less, higher to brake judgment accuracy, meanwhile, mechanical contacts, without kinematic mechanism, there is not the inefficacy because bad contact causes, in addition, use semiconductor devices, life-span can reach millions of times, improves service life.In addition, structure is simple, processing, easy to manufacture and seal completely, and environmental protection ability is strong.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a brake lamp coutrol device, is characterized in that, comprises body and magnet ring, and described magnet ring is for being sheathed on the inner carrier of brake pump, and described body comprises:
Base;
Circuit card, is installed in described base, is integrated with control circuit, and described control circuit is used for control and lights or extinguish brake lamp;
Hall element, to be integrated on described circuit card and to be electrically connected with described control circuit;
Described body is installed on the outer wall of described brake pump, and the plane at described magnet ring place when making described Hall element depart from described inner carrier initial position; When braking maneuver, when brake pedal drives described inner carrier to move to make described magnet ring to arrive or crosses the line of centers of described Hall element, described Hall element exports the first level signal to described control circuit, described control circuit controls to light described brake lamp, when braking maneuver is cancelled, described inner carrier drives described magnet ring when the line of centers of described Hall element resets to initial position, described Hall element exports second electrical level signal to described control circuit, and described control circuit controls to extinguish described brake lamp.
2. brake lamp coutrol device according to claim 1, is characterized in that, is sealed with casting glue between the periphery of described circuit card and described base.
3. brake lamp coutrol device according to claim 1, is characterized in that, described magnet ring has the two poles of the earth, is distributed in respectively on two surfaces of described magnet ring.
4. brake lamp coutrol device according to claim 1, is characterized in that, described Hall element is unipolarity Hall switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310415448.5A CN104442549A (en) | 2013-09-13 | 2013-09-13 | Brake lamp control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310415448.5A CN104442549A (en) | 2013-09-13 | 2013-09-13 | Brake lamp control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104442549A true CN104442549A (en) | 2015-03-25 |
Family
ID=52889559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310415448.5A Pending CN104442549A (en) | 2013-09-13 | 2013-09-13 | Brake lamp control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104442549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267398A (en) * | 2019-06-17 | 2019-09-20 | 上汽大众汽车有限公司 | The method that brake light circuit, brake light system and Brake lamp dynamic are extinguished |
-
2013
- 2013-09-13 CN CN201310415448.5A patent/CN104442549A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267398A (en) * | 2019-06-17 | 2019-09-20 | 上汽大众汽车有限公司 | The method that brake light circuit, brake light system and Brake lamp dynamic are extinguished |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |