CN110045652A - A kind of electric vehicle controller digital input circuit being compatible with positive and negative control - Google Patents
A kind of electric vehicle controller digital input circuit being compatible with positive and negative control Download PDFInfo
- Publication number
- CN110045652A CN110045652A CN201910328164.XA CN201910328164A CN110045652A CN 110045652 A CN110045652 A CN 110045652A CN 201910328164 A CN201910328164 A CN 201910328164A CN 110045652 A CN110045652 A CN 110045652A
- Authority
- CN
- China
- Prior art keywords
- processor
- input signal
- mouthfuls
- input
- high voltage
- 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.)
- Granted
Links
- 239000013642 negative control Substances 0.000 title claims abstract description 19
- 239000013641 positive control Substances 0.000 title claims abstract description 13
- 230000003750 conditioning effect Effects 0.000 claims abstract description 16
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21137—Analog to digital conversion, ADC, DAC
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of electric vehicle controller digital input circuits for being compatible with positive and negative control; for digital quantity input signal to be transmitted to processor; input circuit includes input signal conditioning circuit, AD impedance matching and protection circuit; input signal conditioning circuit includes the anode of a termination processor simulation power supply of the first divider resistance R1, the second divider resistance R2 and high voltage isolated diode D1, the first divider resistance R1, another termination high voltage isolated diode D1；Second divider resistance R2 one termination processor, it is another termination high voltage isolated diode D1 cathode, the cathode of high voltage isolated diode D1 is connected to the input terminal of digital quantity input signal, and input circuit is transmitted to AD mouthfuls of processor from the anode number of winning the confidence of high voltage isolated diode D1.The input circuit is simple and convenient to the conditioning mode of digital quantity input signal, will not there is a situation where malfunction so that processor is more accurate to the judgement of the height of digital quantity input signal effectively (positive and negative control).
Description
Technical field
The present invention relates to be related to electric automobiles, and in particular to a kind of electric vehicle controller number for being compatible with positive and negative control is defeated
Enter circuit.
Background technique
Domestic electric vehicle controller control terminal signal majority, which is positive, in the market controls input (Gao Youxiao), wherein most
Input voltage is cell voltage, and fraction is 12V input.Certain international its control of big factory's electric vehicle controller (fork truck controller)
Terminal processed is negative control input (low effective).And one of which is selected to mean that more changer controller needs change for depot
Dynamic overall wire sheaves, it is highly inconvenient.The controller of different hardware is produced in face of different depots for controller producer,
Also highly inconvenient.How to solve the above problems, is those skilled in the art's urgent issue.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of electric vehicle controller number for being compatible with positive and negative control
Word input circuit, processor are simple for digital quantity input signal processing mode, and strong antijamming capability is not easy to judge by accident.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of electric vehicle controller being compatible with positive and negative control
Digital input circuit, for digital quantity input signal to be transmitted to processor, the input circuit includes input signal conditioning electricity
Road, AD impedance matching and protection circuit, the input signal conditioning circuit include the first divider resistance R1, the second divider resistance R2
An and termination processor simulation power supply, another termination high pressure of high voltage isolated diode D1, the first divider resistance R1
The anode of isolating diode D1；A termination processor of the second divider resistance R2, another termination high_voltage isolation two
The cathode of pole pipe D1, the cathode of the high voltage isolated diode D1 is connected to the input terminal of the digital quantity input signal, described
Input circuit is transmitted to AD mouthfuls of processor from the anode number of winning the confidence of the high voltage isolated diode D1.
Preferably, the AD impedance matching and protection circuit include third divider resistance R3, capacitor C1, two pole of high_voltage isolation
The anode of a termination high voltage isolated diode D1 of pipe D2 and high voltage isolated diode D3, the third divider resistance R3,
AD mouthfuls of another termination processor；A termination of the capacitor C1 is processor AD mouthfuls described, another termination analog power；The height
The anode of pressure isolating diode D2 connects described processor AD mouthful, that cathode connects analog power is positive；The high voltage isolated diode D3
Anode with connecing analog power, cathode connect described processor AD mouthfuls.
Preferably, the processor judges the digital quantity input signal by detecting processor AD mouthfuls of the voltage
Validity, when user setting be positive control when, detecting the processor AD mouthfuls of voltage close to the processor simulation power supply
The half of voltage or lower than supply voltage half when, judge that the digital quantity input signal is invalid；Detecting the processing
When AD mouthfuls of voltages of device are close to supply voltage, judge that the digital quantity input signal is effective；When user's setting, which is negative, to be controlled, detecting
When to the processor AD mouthfuls of voltage close to the half of the processor simulation supply voltage or higher than the half of supply voltage, sentence
The digital quantity input signal of breaking is invalid；When detecting the processor AD mouthfuls of voltage close to ground level, the number is judged
It is effective to measure input signal.
Preferably, the digital quantity input signal includes that the 12V of gear signal is just controlling the battery of input signal, gear signal
Voltage class just controlling input, the negative control input of gear signal, brake switch signal 12V just controlling input signal, brake switch letter
Number cell voltage grade just controlling input, the negative control of brake switch signal input.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: compatibility of the invention
The electric vehicle controller digital input circuit of positive and negative control passes through setting input signal conditioning circuit, AD impedance matching and protection
Circuit can be realized effectively (positive and negative to the height of digital quantity input signal by AD mouthfuls of processor measurement processor of voltage
Control) judgement, it is not only flexible and convenient that input voltage is prevented to cause IO input latch-up, at low cost and easy reality in intermediate level again
It is existing.
Detailed description of the invention
Fig. 1 is the circuit diagram of the electric vehicle controller digital input circuit of the positive and negative control of compatibility of the present invention；
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated technical solution of the present invention.
A kind of electric vehicle controller digital input circuit being compatible with positive and negative control, for digital quantity input signal to be transmitted to
Processor.The input circuit includes input signal conditioning circuit, AD impedance matching and protection circuit.
The input signal conditioning circuit includes the first divider resistance R1, the second divider resistance R2 and high voltage isolated diode
D1, shown in Figure 1, termination processor simulation power supply (VCC), another termination high_voltage isolation two of first divider resistance R1
The anode of pole pipe D1；Second divider resistance R2 one termination processor (GND), it is another termination high voltage isolated diode D1 yin
Pole, the cathode of high voltage isolated diode D1 are connected to the input terminal of digital quantity input signal, and input circuit is from two pole of high_voltage isolation
The anode number of winning the confidence of pipe D1 is transmitted to AD mouthfuls of processor.By the way that input signal conditioning circuit is arranged, can be realized defeated to digital quantity
Enter the conditioning of signal.
When the input of digital quantity input signal is hanging, high voltage isolated diode D1 works on state, input signal tune
The output voltage of reason circuit is divided by the first divider resistance R1, the second divider resistance R2 and high voltage isolated diode D1, defeated
Voltage is the half or so of processor simulation supply voltage out, actually can be according to the first divider resistance R1, the second divider resistance R2
The difference of value changes.When input grounding, high voltage isolated diode D1 still works on state, input signal conditioning
Circuit output voltage is the pressure drop of high voltage isolated diode D1.When inputting 12V or cell voltage, high voltage isolated diode D1 work
Make in reverse blocking state, input signal conditioning circuit output voltage is pulled upward to processor simulation power supply by the first divider resistance R1
Voltage.
Through input signal conditioning circuit conditioning after digital quantity input signal in three kinds of states when voltage difference it is big, processor
It is easily processed, strong antijamming capability is not easy erroneous judgement.
In this example, the AD impedance matching and protection circuit include third divider resistance R3, capacitor C1, high voltage isolated diode
D2 and high voltage isolated diode D3, shown in Figure 1, the sun of a termination high voltage isolated diode D1 of third divider resistance R3
Pole, AD mouthfuls of another termination processor；Processor AD mouthfuls of a termination of capacitor C1, another termination analog power ground (GND)；High pressure every
Anode from diode D2 connects AD mouthfuls of processor, cathode connects analog power (VCC) anode；The anode of high voltage isolated diode D3 connects
Analog power (GND), cathode connect AD mouthfuls of processor.Here, the third divider resistance R3 and capacitor C1 forms AD impedance matching
Circuit plays the role of AD mouthfuls of impedance matchings of processor and input signal filtering, filters out due to caused by master power switch movement
Interference.And third divider resistance R3, high voltage isolated diode D2, high voltage isolated diode D3 composition AD signal limiter protection electricity
Road.It is clamped to supply voltage, third divider resistance R3 limit by high voltage isolated diode D2 when input voltage is higher than supply voltage
Stream；It is clamped to ground level, third divider resistance R3 current limliting by high voltage isolated diode D3 when input voltage is lower than ground level.
Here, processor judges the validity of digital quantity input signal by AD mouthfuls of measurement processor of voltage.
1) when user's setting, which is positive, to be controlled, detecting AD mouthfuls of voltages of processor close to the one of processor simulation supply voltage
Half or lower than supply voltage half when, judge that digital quantity input signal is invalid；Detecting AD mouthfuls of voltages of processor close to electricity
When the voltage of source, judge that digital quantity input signal is effective；
2) when user's setting, which is negative, to be controlled, detect AD mouthfuls of voltages of processor close to the half of processor simulation supply voltage or
Higher than supply voltage half when, judge that digital quantity input signal is invalid；Detecting AD mouthfuls of voltages of processor close to ground level
When, judge that digital quantity input signal is effective.
Processor is filtered after reading the AD mouthfuls of signals issued, when progress digital quantity status input signal judges
Stagnant ring is added, enhances system rejection to disturbance ability, erroneous judgement caused by being jumped after preventing input signal to be disturbed.
Here, which includes that the 12V of gear signal just controls (Gao Youxiao) input signal, gear signal
Cell voltage grade just control (Gao Youxiao) input, negative control (effectively low) input of gear signal, brake switch signal 12V just control
(Gao Youxiao) input signal, the cell voltage grade of brake switch signal just control (Gao Youxiao) input, brake switch signal it is negative
Control (low effective) input.
Using input circuit of the invention, when digital quantity input signal is hanging, processor AD mouthfuls of voltage is supply voltage
Half or so, in high level input, AD mouthfuls of voltages of processor are supply voltage, AD mouthfuls of voltages of processor in low level input
Within 1V, input noise tolerance is bigger, will not malfunction.
By the input circuit, height is can be realized effectively (positive and negative control) by AD mouthfuls of measurement processor of voltage in processor
Differentiation, it is not only flexible and convenient that input voltage is prevented to cause IO input latch-up in intermediate level again.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of electric vehicle controller digital input circuit for being compatible with positive and negative control, for digital quantity input signal to be transmitted to place
Manage device, which is characterized in that the input circuit includes input signal conditioning circuit, AD impedance matching and protects circuit, described defeated
Entering signal conditioning circuit includes the first divider resistance R1, the second divider resistance R2 and high voltage isolated diode D1, and described first point
A termination processor simulation power supply, another anode for terminating the high voltage isolated diode D1 of piezoresistance R1；Described second point
A termination processor of piezoresistance R2, the cathode of another termination high voltage isolated diode D1, two pole of high_voltage isolation
The cathode of pipe D1 is connected to the input terminal of the digital quantity input signal, and the input circuit is from the high voltage isolated diode D1
The anode number of winning the confidence be transmitted to AD mouthfuls of processor.
2. electric vehicle controller digital input circuit according to claim 1, which is characterized in that the AD impedance matching
It include third divider resistance R3, capacitor C1, high voltage isolated diode D2 and high voltage isolated diode D3 with protection circuit, described the
The anode of a termination high voltage isolated diode D1 of three divider resistance R3, described processor AD mouthfuls of another termination；The electricity
The termination for holding C1 is processor AD mouthfuls described, another termination analog power；The anode of the high voltage isolated diode D2 meets institute
State AD mouthfuls of processor, cathode connects analog power anode；The anode of the high voltage isolated diode D3 is with connecing analog power, cathode connects
Described processor AD mouthfuls.
3. electric vehicle controller digital input circuit according to claim 1, which is characterized in that the processor passes through
Processor AD mouthfuls of the voltage is detected to judge the validity of the digital quantity input signal, when user's setting, which is positive, to be controlled,
Detecting the processor AD mouthfuls of voltage close to the half of the processor simulation supply voltage or lower than the one of supply voltage
When half, judge that the digital quantity input signal is invalid；When detecting the processor AD mouthfuls of voltage close to supply voltage, judgement
The digital quantity input signal is effective；When user's setting, which is negative, to be controlled, detecting the processor AD mouthfuls of voltage described in
The half of processor simulation supply voltage or higher than supply voltage half when, judge that the digital quantity input signal is invalid；?
When detecting the processor AD mouthfuls of voltage close to ground level, judge that the digital quantity input signal is effective.
4. existing according to claim 1 to electric vehicle controller digital input circuit, feature described in any claim in 3
In the digital quantity input signal includes that the 12V of gear signal is just controlling input signal, the cell voltage grade of gear signal is just controlled
Input, the negative control input of gear signal, brake switch signal 12V just controlling the cell voltage of input signal, brake switch signal
Grade is just controlling input, the negative control of brake switch signal input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328164.XA CN110045652B (en) | 2019-04-23 | 2019-04-23 | Positive and negative control compatible digital input circuit of electric automobile controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328164.XA CN110045652B (en) | 2019-04-23 | 2019-04-23 | Positive and negative control compatible digital input circuit of electric automobile controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110045652A true CN110045652A (en) | 2019-07-23 |
| CN110045652B CN110045652B (en) | 2024-06-14 |
Family
ID=67278632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910328164.XA Active CN110045652B (en) | 2019-04-23 | 2019-04-23 | Positive and negative control compatible digital input circuit of electric automobile controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110045652B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566325A (en) * | 2020-12-25 | 2021-03-26 | 杭州辰汉智能科技有限公司 | Vehicle light regulation and control device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992523A (en) * | 2005-12-28 | 2007-07-04 | 松下电器产业株式会社 | Switch circuit and diode |
| CN101814765A (en) * | 2010-04-06 | 2010-08-25 | 中国电力科学研究院 | Power supply control system of bidirectional electric automobile charger |
| CN102315844A (en) * | 2010-06-29 | 2012-01-11 | 深圳市合信自动化技术有限公司 | Digital quantity output device of programmable logic controller and self-checking method |
| CN203287033U (en) * | 2013-05-01 | 2013-11-13 | 成都威特电喷有限责任公司 | Automotive electronic control unit self-diagnostic sensor signal detection circuit |
| CN103762558A (en) * | 2014-01-21 | 2014-04-30 | 北京航空航天大学 | Recoverable power interface circuit resistant to single event latchup |
| CN104730997A (en) * | 2015-03-26 | 2015-06-24 | 刘清清 | Detection circuit |
| CN104914376A (en) * | 2015-05-08 | 2015-09-16 | 武汉合康动力技术有限公司 | Digital circuit state detection circuit and digital circuit state detection method |
| CN107800425A (en) * | 2017-11-03 | 2018-03-13 | 定州新能源汽车有限公司 | A kind of new energy vehicle battery management system digital interface circuit |
| CN209674212U (en) * | 2019-04-23 | 2019-11-22 | 苏州爱科赛博电源技术有限责任公司 | A kind of electric vehicle controller digital input circuit being compatible with positive and negative control |
-
2019
- 2019-04-23 CN CN201910328164.XA patent/CN110045652B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992523A (en) * | 2005-12-28 | 2007-07-04 | 松下电器产业株式会社 | Switch circuit and diode |
| CN101814765A (en) * | 2010-04-06 | 2010-08-25 | 中国电力科学研究院 | Power supply control system of bidirectional electric automobile charger |
| CN102315844A (en) * | 2010-06-29 | 2012-01-11 | 深圳市合信自动化技术有限公司 | Digital quantity output device of programmable logic controller and self-checking method |
| CN203287033U (en) * | 2013-05-01 | 2013-11-13 | 成都威特电喷有限责任公司 | Automotive electronic control unit self-diagnostic sensor signal detection circuit |
| CN103762558A (en) * | 2014-01-21 | 2014-04-30 | 北京航空航天大学 | Recoverable power interface circuit resistant to single event latchup |
| CN104730997A (en) * | 2015-03-26 | 2015-06-24 | 刘清清 | Detection circuit |
| CN104914376A (en) * | 2015-05-08 | 2015-09-16 | 武汉合康动力技术有限公司 | Digital circuit state detection circuit and digital circuit state detection method |
| CN107800425A (en) * | 2017-11-03 | 2018-03-13 | 定州新能源汽车有限公司 | A kind of new energy vehicle battery management system digital interface circuit |
| CN209674212U (en) * | 2019-04-23 | 2019-11-22 | 苏州爱科赛博电源技术有限责任公司 | A kind of electric vehicle controller digital input circuit being compatible with positive and negative control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566325A (en) * | 2020-12-25 | 2021-03-26 | 杭州辰汉智能科技有限公司 | Vehicle light regulation and control device and method |
| CN112566325B (en) * | 2020-12-25 | 2023-06-13 | 杭州辰汉智能科技有限公司 | Vehicle light regulation and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110045652B (en) | 2024-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106405249B (en) | Detection circuit and detection method for insulation resistance of electric automobile | |
| CN106501611A (en) | Insulation resistance detection method and device | |
| CN108802606B (en) | Circuit capable of detecting suspension and high-low level of input port | |
| CN103605017A (en) | Detection method of vehicle switch quantity signal | |
| CN110556910A (en) | power supply switching circuit, power supply system and vehicle | |
| CN109143048A (en) | High tension loop relay adhesion diagnostic circuit and diagnostic method | |
| CN110045652A (en) | A kind of electric vehicle controller digital input circuit being compatible with positive and negative control | |
| CN209674212U (en) | A kind of electric vehicle controller digital input circuit being compatible with positive and negative control | |
| CN208255328U (en) | Direct current charging confirmation detection circuit of electric vehicle battery management system | |
| CN107957547A (en) | A kind of D.C. contactor detecting system | |
| CN209674211U (en) | A kind of electric vehicle controller digital input circuit of the compatible positive and negative control of adjustable threshold | |
| CN214539917U (en) | Relay detection circuit of alternating-current charging pile | |
| CN110045651A (en) | Electric automobile controller digital input circuit with adjustable threshold value and compatible positive and negative control | |
| CN109274074A (en) | A kind of switching circuit reducing air-conditioner controller quiescent current | |
| CN208001364U (en) | A kind of two-way microphone automatic switch-over circuit | |
| CN203616422U (en) | Input signal state detecting device and electric automobile provided with same | |
| CN111489671B (en) | Self-checking circuit for vehicle-mounted LVDS signal output | |
| CN204279295U (en) | A kind of lead-out terminal monitoring circuit of electrobus control system | |
| CN210391110U (en) | Brake pad filler block thickness detection device | |
| CN209992650U (en) | Battery wire harness detection circuit | |
| CN213600859U (en) | Antenna on-off detection circuit, mobile unit and vehicle | |
| CN204103460U (en) | The undervoltage protection device of Switching Power Supply and there is its Switching Power Supply | |
| CN204103461U (en) | The undervoltage protection device of Switching Power Supply and there is its Switching Power Supply | |
| CN215728607U (en) | Seat detection circuit and vehicle detection system | |
| CN206639016U (en) | For automobile instrument water temperature fuel sensor sample circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |