CN200954786Y - Novel electric vortex speed-buffering device - Google Patents
Novel electric vortex speed-buffering device Download PDFInfo
- Publication number
- CN200954786Y CN200954786Y CN 200620108754 CN200620108754U CN200954786Y CN 200954786 Y CN200954786 Y CN 200954786Y CN 200620108754 CN200620108754 CN 200620108754 CN 200620108754 U CN200620108754 U CN 200620108754U CN 200954786 Y CN200954786 Y CN 200954786Y
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- power switch
- current vortex
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Abstract
The utility model relates to a new-type electric eddy current retarder. The retarder takes a CPU as a core, and the core is connected with a signal shaping and filtering unit, an interference-proofing filtering unit, an over-voltage and under-voltage protective unit, a system alarm unit, a high-power switch module and a voltage conversion unit providing the operation power supply. The voltage conversion unit is connected with a vehicle storage battery. The signal shaping and filtering unit is connected with speed sensor signals. The interference-proofing filtering unit is connected with manual switch signals. The power drive unit is connected with an electromagnetic coil unit. The electromagnetic coil unit is composed of 4 groups braking coils in parallel. One terminal of the parallel circuit is connected with the high-power switch module and the other terminal is grounded. One output terminal of the high-power switch module is used to drive the electromagnetic coil unit composed of 4 groups of braking coils, thereby greatly simplifying the circuit and the wiring between the circuits for convenient maintenance.
Description
Technical field
The utility model relates to a kind of contactless speed reduction gearing, relates in particular to the novel current vortex retarder that a kind of automobile is used.
Background technology
Current vortex retarder is a kind of novel contactless speed reduction gearing, than traditional braking many advantages is arranged, and greatly improves braking performance of automobile, improves running safety, ride comfort, reduces life and property loss; Sharp-pointed noise when eliminating traditional braking and dust are to the pollution of environment; Save vehicle maintenance expense and subsidiary stagnation of movement unattended time loss, prolong the service life of brake plate and tire, increase economic efficiency.
Though it is later that current vortex retarder is used in China, obtains the great attention of national departments concerned.It is reported that country considers to have set about drafting rules from tightening security, stipulate that all must install brake auxiliary device at the large and medium-sized vehicle of running on expressway.
Traditional current vortex retarder is made up of 8 restraining coils, and is in parallel again after per two coils series connection, is symmetric arrangement, helps the balance of lock torque.Traditional current vortex retarder has two kinds of schemes to the control of solenoid current: a kind of is that power drive unit adopts discrete relay control mode, and four relays are controlled four groups of restraining coils respectively, and cooresponding input handle also has 4 gears; Another kind of scheme is for fear of the frequent adhesive of relay, contact endurance is low and turn-off drawback such as arcing, power drive unit adopts high-power MOS tube to replace relay and controls as power element, one has 4 metal-oxide-semiconductors, one group of restraining coil of the corresponding control of each metal-oxide-semiconductor, decide the size of current of restraining coil by the ON time of metal-oxide-semiconductor, realize the adjusting of braking force.
More than all be the strategy that adopts discrete control in two kinds of schemes, but respectively corresponding 4 the implementation controller spares (relay or metal-oxide-semiconductor) of 4 groups of restraining coils are arranged promptly, there is the drawback that the power drive unit lead-out terminal is more, wiring is complicated, the power drive unit back panel wiring is also complicated, difficult in maintenance simultaneously.
Summary of the invention
The utility model provides that a kind of power drive unit lead-out terminal is few, wiring is simplified greatly, novel current vortex retarder easy to maintenance, mainly solves original current vortex retarder wiring complexity, technical matters difficult in maintenance.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises central processing unit, the signal shaping and filtering unit that links to each other with central processing unit, the interference protection filter unit, power drive unit and the voltage conversion unit that working power is provided for whole current vortex retarder, voltage conversion unit connects Vehicular accumulator cell, power drive unit links to each other with the magnet coil unit, the signal shaping and filtering unit connects the car speed sensor signal, the moving change-over switch signal of interference protection filter unit catcher, described power drive unit is a high power switch module, described magnet coil unit is formed in parallel by four groups of restraining coils, this circuit parallel one end links to each other other end ground connection with described high power switch module.The car speed sensor signal derives from car speed sensor, and the signal shaping and filtering unit that is attached thereto is selected the NAND gate (as 74HC14N) that has Schmidt trigger for use; The Manual Transfer Switch signal comes from the driver's operation handle, generally adopts the size of six grades of control brake moments, and the interference protection filter unit that is attached thereto adopts LC filter circuit commonly used; Vehicular accumulator cell is that vehicle carries accessory feed, is generally DC24V output, and voltage conversion unit is the miniwatt DC-DC changer with multichannel output, and the working power of each circuit unit is provided; The high power switch module can be selected devices such as MG150J2YS40 for use.Adopt a lead-out terminal of a high power switch module to remove to drive the circuit parallel of four groups of restraining coils, not only simplified circuit but also simplified connection lead between circuit, make safeguard very convenient.
As preferably, also be connected with the over-and under-voltage protective circuit on the described central processing unit.The over-and under-voltage protective circuit adopts comparator (as LM358) to constitute; by detected value and setting value are compared; as find overvoltage or under-voltage; then export control signal and give central processing unit; handled through internal processes by central processing unit, the output control signal locks the high power switch module again.
As preferably, also be connected with the system alarm unit on the described central processing unit.The system alarm unit mainly by software detection battery tension, vehicle speed signal etc., sends high-level control signal by central processing unit, control light and audible alarm.
The beneficial effects of the utility model are: adopt the power drive unit of a high power switch module as the magnet coil unit, a lead-out terminal goes to drive the magnet coil unit that is formed in parallel by four groups of restraining coils, simplified circuit greatly, also simplified the line between circuit, made maintenance very convenient.
Description of drawings
Fig. 1 is that a kind of circuit of the present utility model connects block diagram.
Fig. 2 is the line scheme drawing of magnet coil unit and high power switch intermodule in the utility model.
Fig. 3 is a software flow pattern of avoiding transmission gear to vibrate back and forth in backlash in the utility model.
1. central processing unit among the figure; 2. signal shaping and filtering unit, 3. interference protection filter unit, 4. over-and under-voltage protected location; 5. system alarm unit; 6. high power switch module, 7. magnet coil unit, 7-1. restraining coil; 8. voltage conversion unit; 11. the car speed sensor signal, 12. Manual Transfer Switch signals, 13. Vehicular accumulator cells.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the novel current vortex retarder of present embodiment; as Fig. 1; shown in Figure 2; with central processing unit 1 is core; be connected with signal shaping and filtering unit 2 on it; interference protection filter unit 3; over-and under-voltage protected location 4; system alarm unit 5; a high power switch module 6; also being included as whole current vortex retarder provides the voltage conversion unit 8 of working power; voltage conversion unit 8 connects Vehicular accumulator cell 13; signal shaping and filtering unit 2 connects car speed sensor signal 11; the moving change-over switch signal 12 of interference protection filter unit 3 catchers; high power switch module 6 connects magnet coil unit 7; magnet coil unit 7 is formed in parallel by four groups of restraining coil 7-1; this circuit parallel one end links to each other other end ground connection with high power switch module 6.Central processing unit 1 is selected micro controller system PIC16F870 for use; signal shaping and filtering unit 2 is selected the NAND gate 74HC14N that has Schmidt trigger for use; interference protection filter unit 3 adopts LC filter circuit commonly used; over-and under-voltage protected location 4 adopts comparator LM358, and high power switch module 6 is selected MG150J2YS40 for use.
Current vortex retarder generally is installed on the vehicular transmission shaft.In the past, motor omnibus, lorry when vehicle ' arrives certain speed of a motor vehicle, can cause the resonance of vehicle rear axle transmission gear and retarder magnet coil after installing current vortex retarder additional, cause rear driving axle transmission gear wearing and tearing aggravation.Increased by one section new procedures in the job procedure that the utility model stores in central processing unit, make central processing unit gather vehicle speed signal, find out the vehicle speed range of vehicle rear axle gear resonance, in this vehicle speed range, apply a less lock torque (electric current) to retarder, the back axle transmission gear is meshed together all the time, avoid transmission gear in the vibration back and forth of backlash the inside.The workflow of this program as shown in Figure 3.
The utility model had both been simplified circuit and had also been simplified line between circuit, made to safeguard very conveniently, and the improvement by job procedure in the central processing unit has effectively reduced the wearing and tearing of back axle transmission gear, and life-saving guarantees the reliability of braking.
Claims (3)
1. novel current vortex retarder, comprise central processing unit (1), the signal shaping and filtering unit (2) that links to each other with central processing unit (1), interference protection filter unit (3), power drive unit and the voltage conversion unit (8) that working power is provided for whole current vortex retarder, voltage conversion unit (8) connects Vehicular accumulator cell (13), power drive unit links to each other with magnet coil unit (7), signal shaping and filtering unit (2) connects car speed sensor signal (11), the moving change-over switch signal (12) of interference protection filter unit (3) catcher, it is characterized in that described power drive unit is a high power switch module (6), described magnet coil unit (7) is formed in parallel by four groups of restraining coils (7-1), this circuit parallel one end links to each other other end ground connection with described high power switch module (6).
2. novel current vortex retarder according to claim 1 is characterized in that also being connected with on the described central processing unit (1) over-and under-voltage protected location (4).
3. novel current vortex retarder according to claim 1 and 2 is characterized in that also being connected with on the described central processing unit (1) system alarm unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108754 CN200954786Y (en) | 2006-10-19 | 2006-10-19 | Novel electric vortex speed-buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108754 CN200954786Y (en) | 2006-10-19 | 2006-10-19 | Novel electric vortex speed-buffering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200954786Y true CN200954786Y (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620108754 Expired - Fee Related CN200954786Y (en) | 2006-10-19 | 2006-10-19 | Novel electric vortex speed-buffering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN200954786Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802649A (en) * | 2015-03-17 | 2015-07-29 | 合肥协力仪表控制技术股份有限公司 | Eddy current retarder controller and control method |
| CN107344501A (en) * | 2017-06-12 | 2017-11-14 | 深圳市特尔佳科技股份有限公司 | Electronic type driving controller of electric eddy current brake and its control method |
-
2006
- 2006-10-19 CN CN 200620108754 patent/CN200954786Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802649A (en) * | 2015-03-17 | 2015-07-29 | 合肥协力仪表控制技术股份有限公司 | Eddy current retarder controller and control method |
| CN104802649B (en) * | 2015-03-17 | 2018-08-17 | 合肥协力仪表控制技术股份有限公司 | A kind of controller of current vortex retarder |
| CN107344501A (en) * | 2017-06-12 | 2017-11-14 | 深圳市特尔佳科技股份有限公司 | Electronic type driving controller of electric eddy current brake and its control method |
| CN107344501B (en) * | 2017-06-12 | 2023-06-02 | 深圳市大为创新科技股份有限公司 | Electronic type eddy current retarder driving controller and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |