CN207059790U - Electronic type driving controller of electric eddy current brake - Google Patents
Electronic type driving controller of electric eddy current brake Download PDFInfo
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- CN207059790U CN207059790U CN201720681497.7U CN201720681497U CN207059790U CN 207059790 U CN207059790 U CN 207059790U CN 201720681497 U CN201720681497 U CN 201720681497U CN 207059790 U CN207059790 U CN 207059790U
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Abstract
It the utility model is related to a kind of electronic type driving controller of electric eddy current brake.The electronic type driving controller of electric eddy current brake, including MCU processor units and be connected electrically switching value gear signal input shaper unit, frequency GES input shaper unit, CAN communication unit, AD conversion unit, switching value indicator lamp signal output control unit, switching value Brake lamp signal output control unit, switching value power drive load output control unit；Switching value power drive load output control unit also electrically connects analog current signal collecting unit, oad freewheels unit and overvoltage protective unit, the input electrical connection analog temperature signal gathering unit and analog current signal collecting unit of A/D module collecting unit.
Description
Technical field
It the utility model is related to the drive control device in a kind of car auxiliary brake equipment, and in particular to electronic type electricity whirlpool
Flow retarder drive controller.
Background technology
Current vortex retarder is commonly called as electric brake, is a kind of efficient brake auxiliary device of big-and-middle-sized vehicle, by with stator and turn
Magnetic fields between son reach the purpose of vehicle deceleration.It has the spies such as low-speed big, maintaining are simple, reliability is high
Point.
In the 1930s, the automaker in Europe and user just to travelling in mountain area and black spot
Vehicle needs install retarder, and beginning of this century current vortex retarder starts to use on motorbus at home.Institute in 2012 of China
Promulgate《Motor vehicle safe and technical specification》Clear stipulaties vehicle commander is more than 9m car in this national standard of GB7258
It must be provided with retarder and other complemental brake systems；Promulgate within 2014《GB12676-2014 commerial vehicles and trailer braking protection valve
System specifications and test method》In more strict requirements are proposed to the retarder brake performance of vehicle.With national policy
Attention and terminal client tight demand, utilization of the retarder brakes on vehicle will be more and more extensive.
CAN is a kind of controller LAN, is that a kind of effectively support distributed AC servo system or the scene controlled in real time are total
Line, there is the characteristics of high-performance and high reliability.As CAN network technology is in the promotion and popularization of automotive field, with CAN
The CAN type current vortex retarder of class automobile application matching is born therewith, retarder by CAN and gearbox, instrument,
The mobile units such as engine carry out information exchange.
Utility model content
First purpose of the present utility model be to provide one kind can according to input gear signal, GES, ABS signals,
Throttle signal, the driving controller of electric eddy current brake of temperature signal drive control current vortex retarder work.The utility model
The second purpose be to provide one kind and can effectively discharge caused by current vortex retarder shutdown moment overvoltage high-energy and disturb
The overvoltage glitch that pulse and external input power are passed to, realize the driving controller of electric eddy current brake of self-protection.
3rd purpose of the present utility model, which is to provide, a kind of can effectively control the temperature of current vortex retarder body to be operated in safe range
It is interior, realize the electronic type driving controller of electric eddy current brake of high temperature protection.4th purpose of the present utility model is to provide one kind
Realize that driver's maloperation is automatically reminded to and cut off electric current self-protection, reduce caused by artificially malfunctioning to current vortex retarder
The electronic type driving controller of electric eddy current brake of infringement.5th purpose of the present utility model, which is to provide one kind, can realize electric whirlpool
Flow retarder working flexibility to start, reduce current vortex retarder and start moment to back axle and the electricity of the impaction lesion of shaft gear
Minor driving controller of electric eddy current brake.
First technical solution of the present utility model is the electronic type driving controller of electric eddy current brake, its it is special it
Be in,
The controller include MCU processor units and be connected electrically switching value gear signal input shaper unit,
Frequency GES input shaper unit, CAN communication unit, AD conversion unit, switching value indicator lamp signal output control unit,
Switching value Brake lamp signal output control unit, switching value power drive load output control unit；The switching value power drives
Dynamic load output control unit also electrically connects analog current signal collecting unit, oad freewheels unit and overvoltage protective unit,
The input electrical connection analog temperature signal gathering unit and analog current signal collecting unit of the A/D module collecting unit；Its
In：
Switching value gear signal shaping unit, for after the switching value gear input signal shaping filter that will collect, passing
Give MCU processors；
Frequency GES input shaper unit, for after the frequency GES shaping filter that will collect, sending to
MCU processors；
CAN communication unit, bus communication is carried out for drive control device and external CAN network；
Analog temperature signal gathering unit, for input artifical resistance temperature signal to be converted into analog voltage signal, enter
After the processing of row filter shape, AD conversion unit is sent to；
Analog current signal collecting unit, after input analog current signal is converted into analog voltage signal, transmission
Give AD conversion unit；
AD conversion unit, analog voltage signal is converted into data signal, sends the MCU processors to；
MCU processors, the various types of signal of input is subjected to operational analysis, then drive control output；
Switching value indicator lamp signal output control unit, the on-off model that the MCU processors export is converted into institute
The indicator lamp control signal needed；
Switching value Brake lamp signal output control unit, the on-off model that the MCU processors export is converted into institute
The Brake lamp control signal needed；
Switching value power drive loads output control unit, and the digital output modul signal of MCU processors output is turned
Required load current drive signal is changed to, controls outer electrical connection positive supply to be led with the outer retarder stator coil load electrically connected
Logical or shut-off, and feedback operation electric current gives analog current signal collecting unit；When load occurs short-circuit, electric current can be automatically cut off
Output, play short-circuit protection effect；
The both ends of oad freewheels unit, even external load, are stopped moment in retarder, by the retarder of outer electrical connection
The energy of stator coil inductive load storage is discharged by afterflow mode to be finished；
Overvoltage protecting unit, and external power supply and protected lines in parallel, by the retarder stator coil of outer electrical connection
Over-pressed glitch caused by load break operating instant and the extraneous over-pressed glitch brought into by input power discharge,
Caused heat is guided by the fin being connected with the Overvoltage protecting unit during release.
As preferred：The switching value power drive loads output control unit, including control chip, triode, resistance
R1, resistance R2And coil load, the IN connecting resistances R of the control chip1, resistance R1The colelctor electrode of triode is accessed, triode
Base stage is linked in sequence resistance R2With MCU processors, the grounded emitter of triode, the IS access analog current collections of control chip
Unit, the Vbb connection positive sources of control chip, access coil load is followed by after 1 pin of controller, 2 pin, 6 pin, 7 pin parallel connections
Ground；The switching value vulnerabilities scan signal that the switching value power drive load output control unit exports the MCU processors
Required load large driven current density control signal is converted to, controls outer electrical connection positive supply and the outer retarder stator line electrically connected
Load conduction or shut-off are enclosed, and by operating current after analog current signal collecting unit, AD conversion cell processing, it is last anti-
Feed MCU processors, form a closed-loop current control loop；The switching value power drive load output control unit passes through
Hardware circuit is provided with short circuit, open circuit automatic protection and fault feedback circuit, and is carried in oad freewheels loop poor electric contact
For overvoltage glitch energy Releasing loop.
As preferred：The overvoltage protective unit includes high-power TVS chipsets, heat abstractor and electrochemical capacitor, institute
State high-power TVS chipsets and use multiple power identical TVS chip-in series as group, to improve Clamping voltages；Again by multiple TVS
Chipset is parallel with one another, and to lift overcurrent capability, heat abstractor is close to high-power TVS chipsets, by release interfering energy production
Raw heat is guided by fin.
As preferred：The other-end equipment that the CAN communication unit is connected by message communications protocol with CAN network
Communicated；The drive control device receives ABS signals, brake force request signal, throttle signal, speed by CAN and believed
Number, while pass through the work state information of bus transmission retarder, current failure information, historical failure information.
As preferred：The AD conversion unit includes temperature signal A D conversions and four road current signal AD conversion all the way, point
The temperature value of current vortex retarder basic machine and the current value of four tunnel power drive load outputs Yong Yu not handled.
As preferred：The switching value power drive load output control unit includes four tunnel power drive load outputs,
1~4 grade of gear control output is corresponded to respectively.
Compared with prior art, the beneficial effects of the utility model:
(1) overvoltage protection, reliability are high --- and current vortex retarder belongs to high current, inductive load electrical equipment, maximum work
210A is can reach as DC current.In retarder shutdown moment, high pressure, the reverse glitch of high-energy can be produced, if afterflow
Loop poor electric contact, destructive power caused by the interference are amplified at double.Existing over-voltage protection technology exists in continuous current circuit
During contact resistance more than 2.5 Ω, caused overvoltage will cause the component breakdown failure of drive control device part.And this reality
With new controller overvoltage crowbar when contact resistance existing for continuous current circuit is more than 1000 Ω, drive control device is still not
It can fail.
(2) high temperature protection --- prior art carries out temperature alarming prompting and driven in current vortex retarder basic machine high temperature
The person of sailing.And the utility model can not only carry out high temperature alarm in current vortex retarder basic machine high temperature, and can be by certainly
Dynamic control retarder operating current, makes retarder be operated in safe temperature range, can effectively extend eddy current retarder stators
The service life of coil.
(3) fault-operation protection --- the working condition of monitoring retarder in real time, the timely warning reminding that notes abnormalities and switching are defeated
Go out electric current, can effectively prevent driver from forgetting that current vortex retarder long lasting for work, burns caused by hand switch reset
Retarder stator coil causes other security incidents of vehicle.
(4) it is flexible to start --- retarder starts operating instant, exports the torque being delivered on power transmission shaft and starts from scratch, by
Step increase, can make break-in between power transmission shaft and rear axle gear have individual buffer time.Rigidly start compared to existing retarder, flexibility starts
Control will extend the service life of vehicle transmission gear, reduce impaction lesion；When retarder is braked, vehicle operation is more steady
Comfortably.
Brief description of the drawings
Fig. 1 is the utility model drive control device theory diagram；
Fig. 2 is the utility model drive control device schematic block circuit diagram；
Fig. 3 is the utility model high temperature protection control method schematic flow sheet；
Fig. 4 is the utility model driver's maloperation control method schematic flow sheet；
Fig. 5 is the utility model flexible start control method schematic flow sheet；
Fig. 6 is the utility model drive control device output duty cycle and the linear relationship schematic diagram of time；
Fig. 7 is the schematic block circuit diagram of the utility model switching value power drive load output control unit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing：
Fig. 1, Fig. 2, Fig. 7 show the embodiment of the utility model electronic type driving controller of electric eddy current brake.
Refer to shown in Fig. 1, the utility model drive control device includes control panel and shell.Control panel is whole test system
The core cell of system, being responsible for data acquisition, (including CAN network data, input gear data, vehicle speed sensor data, temperature pass
Sensor data), calculation process and drive control output (including the load of retarder stator coil, retarder indicator lamp, Brake lamp).
Shell is used for fixing, protecting control panel.
Refer to shown in Fig. 2, the utility model drive control device control panel, its circuit composition structure includes switching value gear
Signal input shaper unit, frequency GES input shaper unit, MCU processor units, CAN communication unit, AD conversion list
Member, switching value indicator lamp signal output control unit, switching value power drive load output control unit, switching value Brake lamp letter
Number output control unit, oad freewheels unit, overvoltage protective unit.
(i) CAN communication unit, realize that drive control device carries out bus communication with external CAN network；
(ii) switching value gear signal input block, after the gear signal shaping filter of input, MCU processors are sent to.
(iii) frequency GES input shaper unit, after the frequency GES shaping filter collected, MCU is sent to
Processor.
(iv) analog quantity temperature signal collection unit, input artifical resistance temperature signal is converted into analog voltage signal, entered
After the processing of row filter shape, AD conversion unit is sent to.
(v) analog quantity current signal collecting unit, after input analog current signal is converted into analog voltage signal, transmission
Give AD conversion unit.
(vi) AD conversion unit, analog voltage signal is converted into data signal, sends MCU processors to.
(vii) switching value indicator lamp signal output control unit, the indicator light switch amount signal that MCU processors are exported is through three
After the processing of the electronic components such as pole pipe, required control signal is converted to, is connected to external indicator lamp.
(viii) switching value Brake lamp signal output control unit, the braking light switch amount signal that MCU processors are exported is through three
After the processing of the electronic components such as pole pipe, required control signal is converted to, is connected to external Brake lamp.
(ix) switching value power drive load output control unit, the braking light switch amount signal that MCU processors are exported pass through
After the processing of the electronic components such as triode, required control signal is converted to, then carry out greatly by integrated power modules such as metal-oxide-semiconductors
Electric current drive control, is connected to external load.The operating current for driving output is fed back into the collection of analog quantity current signal simultaneously
Unit, refer to shown in Fig. 7.
(x) MCU processors, the various types of signal of input is subjected to operational analysis, then drive control output.It is whole system
Calculation process, control core unit.
The both ends of (11) oad freewheels unit, even external load, the energy that shutdown moment inductive load retains is passed through
Power diode release finishes.
(12) Overvoltage protecting unit, and external power supply and protected lines in parallel, by mistake caused by retarder itself
Press dry and disturb or extraneous input nonlinearities discharge, the electronic component on protection circuit is without damage.
Refer to shown in Fig. 3, the utility model driving controller of electric eddy current brake high temperature protection control method, specific work
It is as follows to make flow：
After electrifying startup, temperature signal collection, AD conversion are carried out；
Data after conversion are subjected to computing according to formula, are converted into temperature value；
Temperature value is subjected to self-test judgement, if occur opening a way or short trouble, if so, then carrying out temperature acquisition failure report
It is alert；
Otherwise, then continue to determine whether serious overtemperature occur, if so, then limiting 25% torque output, and carry out high temperature report
It is alert；
Otherwise, then continue to determine whether moderate overtemperature occur, if so, then limiting 50% torque output, and carry out high temperature report
It is alert；
Otherwise, then continue to determine whether slight overtemperature occur, if so, then limiting 75% torque output, and carry out high temperature report
It is alert；
Otherwise, then according to normal torque output, and high temperature alarm is released.
Refer to shown in Fig. 4, the utility model driving controller of electric eddy current brake driver's maloperation control method, its
Workflow is as follows：
After electrifying startup, it is first determined whether there is brake range input；
If it is not, then timing number t is reset, release alarm and be forced shutdown protection；
If so, then timing number t cumulative 1, then judges whether timing number t is more than 12 minutes, if so, then execution high temperature report
It is alert；It is further continued for judging whether timing number t is more than 15 minutes, if so, being then forced shutdown output；
Above flow be only certain it is single input gear maloperation control method, other gear maloperation control method classes
Seemingly.There is maloperation in single gear, does not influence the use of other gears.
Refer to shown in Fig. 5, Fig. 6, the utility model driving controller of electric eddy current brake flexible start control method, have
Body is as follows：
When drive control current vortex retarder exports, single gear is controlled output using PWM, output duty cycle from
Zero starts to linearly increase, and increases to 100% by the time of 0.3 second, subsequently linearly stable output again.When previous gear
During 100% output, it could start to perform the output of the latter gear, be sequentially output according to 1,2,3,4 gears order.
The foregoing is only preferred embodiment of the present utility model, it is all done according to the utility model claims scope it is equal
Deng change and modify, should all belong to the covering scope of the utility model claims.
Claims (6)
1. a kind of electronic type driving controller of electric eddy current brake, it is characterised in that the controller includes MCU processor units
And switching value gear signal input shaper unit, frequency GES input shaper unit, the CAN communication list being connected electrically
Member, AD conversion unit, switching value indicator lamp signal output control unit, switching value Brake lamp signal output control unit, switch
Measure power drive load output control unit；The switching value power drive load output control unit also electrically connects analog current
Signal gathering unit, oad freewheels unit and overvoltage protective unit, the input electrical connection simulation temperature of the AD conversion unit
Spend signal gathering unit and analog current signal collecting unit；Wherein：
Switching value gear signal shaping unit, for after the switching value gear input signal shaping filter that will collect, sending to
MCU processors；
Frequency GES input shaper unit, for after the frequency GES shaping filter that will collect, sending at MCU
Manage device；
CAN communication unit, bus communication is carried out for drive control device and external CAN network；
Analog temperature signal gathering unit, for input artifical resistance temperature signal to be converted into analog voltage signal, filtered
After ripple Shape correction, AD conversion unit is sent to；
Analog current signal collecting unit, after input analog current signal is converted into analog voltage signal, send AD to
Converting unit；
AD conversion unit, analog voltage signal is converted into data signal, sends the MCU processors to；
MCU processors, the various types of signal of input is subjected to operational analysis, then drive control output；
Switching value indicator lamp signal output control unit, the on-off model that the MCU processors export is converted to required
Indicator lamp control signal；
Switching value Brake lamp signal output control unit, the on-off model that the MCU processors export is converted to required
Brake lamp control signal；
Switching value power drive loads output control unit, and the digital output modul signal that the MCU processors export is converted to
Required load current drive signal, control outer electrical connection positive supply and the outer retarder stator coil load conduction electrically connected or
Shut-off, and feedback operation electric current gives analog current signal collecting unit；When load occurs short-circuit, it is defeated electric current to be automatically cut off
Go out, play short-circuit protection effect；
The both ends of oad freewheels unit, even external load, are stopped moment in retarder, by the retarder stator of outer electrical connection
The energy of coil inductive load storage is discharged by afterflow mode to be finished；
Overvoltage protecting unit, with external power supply and protected lines in parallel, the retarder stator coil of outer electrical connection is loaded
Over-pressed glitch caused by cut-out operating instant and the extraneous over-pressed glitch brought into by input power discharge, and discharge
During caused heat guided by the fin that is connected with the Overvoltage protecting unit.
2. electronic type driving controller of electric eddy current brake according to claim 1, it is characterised in that the switching value power
Driving load output control unit, including control chip, triode, resistance R1, resistance R2And coil load, the control chip
IN connecting resistances R1, resistance R1Access the colelctor electrode of triode, the base stage of triode is linked in sequence resistance R2With MCU processors, three
The grounded emitter of pole pipe, the IS access analog current collecting units of control chip, the Vbb connection positive sources of control chip,
It is grounded after accessing coil load after 1 pin of controller, 2 pin, 6 pin, 7 pin parallel connections；The switching value power drive load output control
The switching value vulnerabilities scan signal that the MCU processors export is converted to required load large driven current density and controls letter by unit processed
Number, outer electrical connection positive supply and the outer retarder stator coil load conduction electrically connected or shut-off are controlled, and operating current is passed through
After crossing analog current signal collecting unit, AD conversion cell processing, MCU processors are finally fed back to, form a current closed-loop
Control loop；The switching value power drive load output control unit is provided with short circuit, the automatic guarantor of open circuit by hardware circuit
Shield and fault feedback circuit, and overvoltage glitch energy Releasing loop is provided in oad freewheels loop poor electric contact.
3. electronic type driving controller of electric eddy current brake according to claim 1, it is characterised in that the overvoltage protection
Unit includes high-power TVS chipsets, heat abstractor and electrochemical capacitor, and the high-power TVS chipsets use multiple power phases
Same TVS chip-in series are group, to improve Clamping voltages；It is again that multiple TVS chipsets are parallel with one another, to lift overcurrent energy
Power, heat abstractor are close to high-power TVS chipsets, and heat caused by release interfering energy is guided by fin.
4. electronic type driving controller of electric eddy current brake according to claim 1, it is characterised in that the CAN communication list
The other-end equipment that member is connected by message communications protocol with CAN network is communicated；The drive control device passes through CAN
Bus receives ABS signals, brake force request signal, throttle signal, GES, while the work of retarder is sent by bus
Status information, current failure information, historical failure information.
5. electronic type driving controller of electric eddy current brake according to claim 1, it is characterised in that the AD conversion unit
Including the conversions of temperature signal A D all the way and four road current signal AD conversion, it is respectively used to handle current vortex retarder basic machine
Temperature value and the current value of four tunnel power drive load outputs.
6. electronic type driving controller of electric eddy current brake according to claim 1, it is characterised in that the switching value power
Driving load output control unit includes four tunnel power drive load outputs, corresponds to 1~4 grade of gear control output respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681497.7U CN207059790U (en) | 2017-06-12 | 2017-06-12 | Electronic type driving controller of electric eddy current brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681497.7U CN207059790U (en) | 2017-06-12 | 2017-06-12 | Electronic type driving controller of electric eddy current brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207059790U true CN207059790U (en) | 2018-03-02 |
Family
ID=61508386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720681497.7U Withdrawn - After Issue CN207059790U (en) | 2017-06-12 | 2017-06-12 | Electronic type driving controller of electric eddy current brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207059790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-06-12 CN CN201720681497.7U patent/CN207059790U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: A1406, building 12, Shenzhen Bay science and technology ecological park, No. 18, Keji South Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Dawei Innovation Technology Co.,Ltd. Address before: 518000, building 12, No. two Shenzhen Software Park, Nanshan District science and technology, Shenzhen, Guangdong 301, China Patentee before: SHENZHEN TERCA TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180302 Effective date of abandoning: 20230602 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180302 Effective date of abandoning: 20230602 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |