CN108663959A - A kind of PTC controllers showing software online updating by PWM causes for gossip - Google Patents
A kind of PTC controllers showing software online updating by PWM causes for gossip Download PDFInfo
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- CN108663959A CN108663959A CN201810583309.6A CN201810583309A CN108663959A CN 108663959 A CN108663959 A CN 108663959A CN 201810583309 A CN201810583309 A CN 201810583309A CN 108663959 A CN108663959 A CN 108663959A
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- resistance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention discloses a kind of PTC controllers showing software online updating by PWM causes for gossip,Including PTC controller ontologies,PTC controller ontologies are equipped with voltage acquisition mouth,Temperature acquisition mouth and PWM communication interfaces,PTC controller body interiors are equipped with master control borad,Master control borad is equipped with processor module,Voltage acquisition module,Temperature collecting module,Current acquisition module,Drive control module and PWM communication modules,Processor module is separately connected voltage acquisition module,Temperature collecting module,Current acquisition module,Voltage acquisition module connects external high pressure input power,Structure of the invention principle is simple,Intelligence degree is high,It can be under the premise of not changing Full Vehicle System design,Borrow the input port of pwm signal,The online upgrading for realizing software by increasing communicating circuit inside PTC controllers,And accomplish not influence the PWM acquisition functions of controller.To realize the function that could be realized using communication interfaces such as CAN originally.
Description
Technical field
The present invention relates to PTC controller technologies field, specially a kind of PTC showing software online updating by PWM causes for gossip
Controller.
Background technology
New energy vehicle mostly uses the output power that pwm signal directly controls PTC controllers to reduce cost at present.
When the later stage is because of function renewal or change in design, software is upgraded to the PTC controllers in all vehicles, can only replaced at this time
Controller dismantles controller and updates software by BDM.And disassembly process needs 7 to 8 hours, and since controller does not have
There is communication function, can not effectively distinguish the updated software of which vehicle.The engineering cost entirely upgraded is up to more than 800 yuan.
Invention content
The purpose of the present invention is to provide a kind of PTC controllers showing software online updating by PWM causes for gossip, in solution
State the problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：It is a kind of that software online updating is showed by PWM causes for gossip
PTC controllers, including PTC controller ontologies, the PTC controllers ontology are equipped with voltage acquisition mouth, temperature acquisition mouth and PWM
Communication interface, the PTC controllers body interior are equipped with master control borad, and the master control borad is equipped with processor module, voltage acquisition
Module, temperature collecting module, current acquisition module, drive control module and PWM communication modules, the processor module connect respectively
Connect voltage acquisition module, temperature collecting module, current acquisition module, the voltage acquisition module connection external high pressure input electricity
Source, the temperature collecting module input terminal are separately connected IGBT temperature sensor and body temperature sensor, the current acquisition
Module connects PTC ontology heating modules by drive control module, and the PWM communication modules connect pwm signal acquisition module.
Preferably,：The drive control module is put including the first Schmitt trigger, the second Schmitt trigger, operation
Big device A and operational amplifier B, the first Schmitt trigger input terminal input pwm signal, and output end connects the second Schmitt
Trigger input terminal, the one end the second Schmitt trigger output end connection resistance A, the resistance A other ends are separately connected resistance B
One end and the one end capacitance F, the resistance B other ends are separately connected the one end capacitance G and operational amplifier A electrode input end, described
The capacitance F other ends connect the capacitance G other ends and are grounded, and the operational amplifier A negative input connects output end, the operation
Amplifier A output ends connect the one end resistance C, and the resistance C other ends are separately connected operational amplifier B electrode input ends and resistance G mono-
End, the one end the operational amplifier B output ends connection resistance F, resistance F other end connecting triode base stages, the operation amplifier
Device B negative inputs are separately connected the one end resistance D and the one end resistance E, resistance D other ends ground connection, the resistance E other ends difference
Connecting triode emitter and the one end resistance H, the resistance H other ends connect the first diode cathode, first diode cathode
Ground connection, the second diode is accessed between the transistor collector and the resistance G other ends.
Preferably, the PWM communication modules include communication chip, and the communication chip model uses TJA1027T, described
The ends communication chip RXD connect the one end resistance I, and the ends SLP are separately connected the one end resistance I and the one end resistance J, the connection of the resistance J other ends
The resistance I other ends, the ends NC are hanging, and the communication chip VBA1 terminates vdd terminal, and the ends LIN connection one end capacitance E simultaneously connects pwm signal
Input terminal, the capacitance E other ends connect the ends GND.
Preferably, the pwm signal acquisition module includes triode, voltage-stabiliser tube, and the transistor collector is separately connected
The one end resistance I and the one end resistance L, emitter ground connection, base stage are separately connected the one end resistance M, voltage-stabiliser tube anode and the one end capacitance D,
The resistance M other ends and the capacitance D other ends are grounded, and the regulator tube negative is being separately connected the one end resistance K and third diode just
Pole, the third diode cathode connect pwm signal input terminal.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）Structure of the invention principle is simple, and intelligence degree is high, can be borrowed under the premise of not changing Full Vehicle System design
The input port of pwm signal is realized the online upgrading of software by increasing communicating circuit inside PTC controllers, and is accomplished not
The PWM for influencing controller acquires function.To realize the function that could be realized using communication interfaces such as CAN originally, actual
During use, by the work of original upgrading software by it is original tear vehicle open and change part and be changed to interface connecting special upgrading tool exist
Line upgrades, and working hour was reduced to 15 minutes by original 8 hours, so that the PTC controller later stages is tieed up and becomes more efficient, greatly reduces
Engineering cost.
（2）The drive control module that the present invention uses may be implemented the accurate output of 4-20MA electric currents, and resolution ratio with
The digit of PWM signals is related, as long as PWM signal resolutions reach certain digit, so that it may to realize that high-precision electric current is defeated
Go out, due to using Schmidt trigger and current negative feedback circuit, anti-interference ability and high stability.
Description of the drawings
Fig. 1 is overall structure front view of the present invention；
Fig. 2 is control principle block diagram of the present invention；
Fig. 3 is drive control module schematic diagram of the present invention；
Fig. 4 is that PWM communication modules of the present invention connect circuit diagram with pwm signal acquisition module.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of PTC showing software online updating by PWM causes for gossip
Controller, including PTC controllers ontology 1, the PTC controllers ontology 1 are equipped with voltage acquisition mouth 2,3 and of temperature acquisition mouth
PWM communication interfaces 4, the PTC controllers ontology 1 are internally provided with master control borad 5, the master control borad 5 be equipped with processor module 6,
Voltage acquisition module 7, temperature collecting module 8, current acquisition module 9, drive control module 10 and PWM communication modules 11, it is described
Processor module 6 is separately connected voltage acquisition module 7, temperature collecting module 8, current acquisition module 9, the voltage acquisition module
7 connection external high pressure input powers 12,8 input terminal of the temperature collecting module is separately connected IGBT temperature sensor 13 and ontology
Temperature sensor 14, the current acquisition module 9 connect PTC ontologies heating module 15, the PWM by drive control module 10
Communication module 11 connects pwm signal acquisition module 16.
In the present invention, drive control module 10 includes the first Schmitt trigger 17, the second Schmitt trigger 18, fortune
Amplifier A1d and operational amplifier B2d are calculated, 17 input terminal of the first Schmitt trigger inputs pwm signal, output end connection
Second Schmitt trigger, 18 input terminal, the one end 18 output end of the second Schmitt trigger connection resistance A1c, resistance A1c
The other end is separately connected the one end resistance B2c and the one end capacitance F6b, the resistance B2c other ends be separately connected the one end capacitance G7b and
Operational amplifier A 1d electrode input ends, the capacitance F6b other ends connect the capacitance G7b other ends and are grounded, the operation amplifier
Device A1d negative inputs connect output end, and the operational amplifier A 1d output ends connect the one end resistance C3c, and resistance C3c is another
End is separately connected operational amplifier B2d electrode input ends and the one end resistance G7c, the operational amplifier B2d output ends connection electricity
The one end F6c, 6 base stage of resistance F6c other ends connecting triode are hindered, the operational amplifier B2d negative inputs are separately connected electricity
The one end D4c and the one end resistance E5c, resistance D4c other ends ground connection are hindered, the resistance E5c other ends are separately connected the hair of triode 19
Emitter-base bandgap grading and the one end resistance H8c, resistance H8c other ends connection 20 cathode of the first diode, 20 plus earth of the first diode,
The second diode 21 is accessed between 19 collector of the triode and the resistance G7c other ends.The drive control mould that the present invention uses
The accurate output of 4-20MA electric currents may be implemented in block, and resolution ratio is related to the digit of PWM signals, as long as PWM signals
Resolution ratio reaches certain digit, so that it may to realize that high-precision electric current exports, due to negative anti-using Schmidt trigger and electric current
Current feed circuit, anti-interference ability and high stability.
In the present invention, PWM communication modules 11 include communication chip 22, and 22 model of the communication chip uses TJA1027T,
The ends the communication chip 22RXD connect the one end resistance I9c, and the ends SLP are separately connected the one end resistance I9c and the one end resistance J10c, electricity
It hinders the J10c other ends and connects the resistance I9c other ends, the ends NC are hanging, and the communication chip 22VBA1 terminates vdd terminal, the connection of the ends LIN
The one end capacitance E5b simultaneously connects pwm signal input terminal, and the capacitance E5b other ends connect the ends GND；Pwm signal acquisition module 16 includes three poles
Pipe 23, voltage-stabiliser tube 24,23 collector of the triode are separately connected the one end resistance I9c and the one end resistance L12c, and emitter is grounded,
It is another that base stage is separately connected the one end resistance M13c, 24 anode of voltage-stabiliser tube and the one end capacitance D4b, the resistance M13c other ends and capacitance D4b
One end is grounded, and 24 cathode of the voltage-stabiliser tube is separately connected the one end resistance K11c and third diode 25 is positive, and the described 3rd 2
25 cathode of pole pipe connects pwm signal input terminal.The communication module strong antijamming capability that the present invention uses can be realized and believe PWM
Number high-efficiency transfer, further improve software online updating efficiency.
Online software more new technological process is as follows：
Protocol definition node ID, which is 0x3C and 0x3D, can only use Classic Checksum, and in software before
Defined verification uses Enhanced Checksum, so being changed by host node and from the ID of node.Host computer host node
ID is 0x3A, and PTC is from node, ID 0x3B.
Under APP Boot states, host node sends 3A 02 10 01, indicates that request enters default conditions,
Then host node is sent from node ID：3B is waited for and being responded from node.If being 02 50 01 from node reverts back data,
Agree to enter default conditions；
Under APP Boot states, host node sends 3A 02 10 02, indicates that request enters programming state, then
Host node is sent from node ID：3B is waited for and being responded from node.If being 02 50 02 from node reverts back data, indicate
Agree to enter programming state；Other data expressions are replied to disagree into programming state；
In the state that previous step replys agreement, host node sends 06 27 02 55 AA of 3A, 33 CC, and request is shaken hands, so
Host node is sent from node ID afterwards, is waited for and being responded from node.If from node reverts back 02 67 02, success of shaking hands is indicated；
Other data expressions are replied to shake hands unsuccessfully；
In the state that previous step is shaken hands successfully, host node sends 04 31 01 FF 00 of 3A, request erasing Flash, so
Host node is sent from node ID afterwards, if from 03 7F 31 78 of node reverts back, host node is sent again after waiting for 1s
From node ID, waits for and being responded from node.If wiped successfully, 04 71 01 FF 00 can be replied；Reply other tables of data
Show erasing failure；
Successful in previous step erasing Flash, host node sends 3A 02 34 01, asks downloading data, then
Host node is sent from node ID, is waited for and being responded from node.If from node reverts back 02 74 01, agrees to download and ask
It asks；
In the case where previous step is agreed to download, host node starts to send the data to after the completion of node, data transmission, main section
Then the instruction that point transmission data is transmitted sends from node ID, waits for and being responded from node.If from node reverts back 76
XX indicates that data transmission is correct；Other situations indicate data transmission error；
After previous step replys the correct password of data transmission, if data are all sent, host node sends 3A 01
37, download is exited in request.Then it sends from node ID, waits for and being responded from node.If from node reverts back 01 77, indicate
Exit success；Failure is exited in other situation expressions；
After previous step exits successfully, host node sends 04 31 01 FF 01 of 3A, and request verifies Flash data, then
Host node is sent from node ID, is waited for and being responded from node, if from 03 7F 31 78 of node reverts back, host node waits for
It is sent again after 1s from node ID, waits for and being responded from node.If verified successfully, host node can reply 05 71 01 FF
01 00 ；If verification failure, can reply 05 71 01 FF 01 01；
After previous step verifies successfully, host node sends 3A 02 11 03, and request resets, and then host node is sent from node
ID is waited for and being responded from node.Under normal circumstances, 02 51 03 can be replied from node, then executes homing action.So far, institute
Some refresh works are completed.
Structure of the invention principle is simple, and intelligence degree is high, can be borrowed under the premise of not changing Full Vehicle System design
The input port of pwm signal is realized the online upgrading of software by increasing communicating circuit inside PTC controllers, and is accomplished not
The PWM for influencing controller acquires function.To realize the function that could be realized using communication interfaces such as CAN originally, actual
During use, by the work of original upgrading software by it is original tear vehicle open and change part and be changed to interface connecting special upgrading tool exist
Line upgrades, and working hour was reduced to 15 minutes by original 8 hours, so that the PTC controller later stages is tieed up and becomes more efficient, greatly reduces
Engineering cost.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of PTC controllers showing software online updating by PWM causes for gossip, including PTC controller ontologies（1）, feature exists
In：The PTC controllers ontology（1）It is equipped with voltage acquisition mouth（2）, temperature acquisition mouth（3）With PWM communication interfaces（4）, described
PTC controller ontologies（1）It is internally provided with master control borad（5）, the master control borad（5）It is equipped with processor module（6）, voltage acquisition mould
Block（7）, temperature collecting module（8）, current acquisition module（9）, drive control module（10）With PWM communication modules（11）, described
Processor module（6）It is separately connected voltage acquisition module（7）, temperature collecting module（8）, current acquisition module（9）, the voltage
Acquisition module（7）Connect external high pressure input power（12）, the temperature collecting module（8）Input terminal is separately connected IGBT temperature
Sensor（13）With body temperature sensor（14）, the current acquisition module（9）Pass through drive control module（10）Connect PTC
Ontology heating module（15）, the PWM communication modules（11）Connect pwm signal acquisition module（16）.
2. a kind of PTC controllers showing software online updating by PWM causes for gossip according to claim 1, it is characterised in that：
The drive control module（10）Including the first Schmitt trigger（17）, the second Schmitt trigger（18）, operational amplifier A
(1d) and operational amplifier B (2d), the first Schmitt trigger (17) input terminal input pwm signal, output end connection the
Two Schmitt trigger (18) input terminals, the second Schmitt trigger (18) output end connect the one end resistance A (1c), resistance
A (1c) other end is separately connected the one end (2c) resistance B and the one end capacitance F (6b), and resistance B (2c) other end is separately connected electricity
Hold the one end (7b) G and operational amplifier A (1d) electrode input end, capacitance F (6b) other end connects capacitance G (7b) other end
And be grounded, operational amplifier A (1d) negative input connects output end, operational amplifier A (1d) the output end connection
The one end resistance C (3c), resistance C (3c) other end are separately connected operational amplifier B (2d) electrode input ends and resistance G (7c) one
End, operational amplifier B (2d) output end connect the one end resistance F (6c), resistance F (6c) other end connecting triode (19) base
Pole, operational amplifier B (2d) negative input are separately connected the one end (4c) resistance D and the one end resistance E (5c), resistance D
(4c) other end is grounded, and resistance E (5c) other end is separately connected triode (19) emitter and the one end resistance H (8c), electricity
It hinders H (8c) other end and connects the first diode (20) cathode, the first diode (20) plus earth, the triode (19)
The second diode (21) is accessed between collector and resistance G (7c) other end.
3. a kind of PTC controllers showing software online updating by PWM causes for gossip according to claim 1, it is characterised in that：
The PWM communication modules（11）Including communication chip（22）, the communication chip（22）Model uses TJA1027T, the communication
Chip（22）The ends RXD connect the one end resistance I (9c), and the ends SLP are separately connected the one end (9c) resistance I and the one end resistance J (10c), electricity
It hinders J (10c) other end and connects resistance I (9c) other end, the ends NC are hanging, and communication chip (22) VBA1 terminates vdd terminal, LIN
End connection one end (5b) capacitance E simultaneously connects pwm signal input terminal, and capacitance E (5b) other end connects the ends GND.
4. a kind of PTC controllers showing software online updating by PWM causes for gossip according to claim 1, feature exist
In:The pwm signal acquisition module（16）Including triode（23）, voltage-stabiliser tube（24）, the triode（23）Collector is distinguished
The one end (9c) resistance I and the one end resistance L (12c), emitter ground connection are connected, base stage is separately connected the one end resistance M (13c), voltage stabilizing
It manages (24) anode and the one end capacitance D (4b), resistance M (13c) other ends and capacitance D (4b) other end is grounded, the voltage-stabiliser tube
(24) cathode is separately connected the one end (11c) resistance K and third diode (25) anode, third diode (25) the cathode connection
Pwm signal input terminal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448226A (en) * | 2019-07-16 | 2019-11-15 | 淮阴工学院 | A kind of ARM car-like robots and its application method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792019A (en) * | 2019-11-25 | 2020-02-14 | 吴融泽 | Concrete vibrator |
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