CN105429196B - The monitoring of conductor is protected during the charging process - Google Patents
The monitoring of conductor is protected during the charging process Download PDFInfo
- Publication number
- CN105429196B CN105429196B CN201510708863.9A CN201510708863A CN105429196B CN 105429196 B CN105429196 B CN 105429196B CN 201510708863 A CN201510708863 A CN 201510708863A CN 105429196 B CN105429196 B CN 105429196B
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- China
- Prior art keywords
- voltage
- charging
- conductor
- alternating
- energy accumulator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of methods for charging to DC voltage energy accumulator, wherein the DC voltage energy accumulator can be separated and be connected with charging equipment (3) by electric plug-in connection (1), wherein the electric plug-in connection (1) passes through resistance (R in DC voltage energy accumulator side4) and be connected in series diode (D2) be arranged between the route and protection conductor (PE) of guidance voltage.It is a feature of the present invention that diode (the D2) to end direction biasing; connection has the alternating-current voltage source (5) of positive voltage and negative voltage at the lead, at least detects the negative half-wave of the alternating voltage by electronic analysis processing unit (4) and seeks whether the protection conductor (PE) between charging unit (3) and electric plug-in connection (1) has interrupted according to negative voltage level detected.
Description
Technical field
The present invention relates to a kind of methods for charging to DC voltage energy accumulator, wherein the DC voltage energy
Memory can be separated and be connected with charging equipment by electric plug connector, wherein the electric plug connector is in direct current
It is arranged between the route of guidance voltage and protection conductor on the side of voltage energy memory by resistance and concatenated diode.
Background technique
When charging to the battery in DC voltage energy accumulator, such as electric vehicle, it is necessary to be supervised in many aspects
Depending on charging process.By required high-power during the charging process, on the one hand in the presence of the danger of overheat, because charging unit is simultaneously
And especially charge cable is by thermic load.On the other hand importantly, electric vehicle is grounded by charging unit and protection conductor, from
And potential difference cannot be generated in failure situations.Due to described, in electric vehicle charging by the prior art it has been shown that
Protection conductor monitoring arrangement is integrated into charging unit.It is furthermore well known that by monitoring circuit lead control as follows: whether occurring
The raising of line resistance.Here, monitoring circuit passes through resistance and two poles connected on conducting direction in electric vehicle connection
Pipe closure.If line resistance increases, voltage decline is until voltage reaches 0 in complete interrupt.
Summary of the invention
The task of the present invention is create a kind of method for charging to DC voltage energy accumulator, the method exists
Also it can be realized the monitoring of the Functional Capability of protection conductor in the state of charge cable being not inserted into.
According to the present invention, the task is solved by Patent right requirement 1, and advantageous configuration of the invention is by appurtenance
It is required that being obtained with attached drawing.
It is arranged in the method according to the invention, diode is connected on the lead with ending direction biasing (polen)
Alternating-current voltage source with positive voltage and negative voltage detects at least negative half-wave of alternating voltage simultaneously by electronic analysis processing unit
And whether the protection conductor between charging unit and electric plug connector is sought according to negative voltage level detected
It interrupts.It can be realized by diode with the biasing for ending direction, the only negative half-wave of analysis processing alternating-current voltage source.If
Apply sufficiently high negative voltage on diode to end direction, then the diode current flow and in diode and concatenated resistance
Upper drop-out voltage about -1V.The voltage drop is certainly also related to the measurement of resistance.However, diode is cut during positive half-wave
Only, so that it is not detected among out.If protecting conductor to interrupt during negative half-wave, diode may be flowed through without electric current
Voltage drop is not generated with concatenated resistance and on resistance and diode.Therefore, negative voltage with its double amplitude is detected.
Therefore, it can distinguish according to the present invention, whether protection conductor is continuous.Because resistance and it is concatenated with end direction biasing
Diode is located in the plug-in connector of charge cable, so when charge cable is not positioned in the connector of electric vehicle
Also it can be realized the control of charge cable.It therefore, also being capable of reliable recognition charging in the state of the not grafting of charge cable
The Functional Capability of the protection conductor of cable.Additionally, the present invention provides following big advantage: with end direction diode in
Or voltage also declines in the situation of the failure in the resistance of arranged in series and therefore the circuit equally can be by the shape
State is identified as failure and exports the state.
Arranged according to the present invention, the negative voltage level in the protection conductor of interruption is than in the protection conductor not interrupted
When negative voltage level have bigger magnitude.If protection conductor is continuously, to connect as already mentioned
Diode and resistance on decline a voltage, the voltage reduces the magnitude of negative voltage level detected.On the contrary, if
It protects conductor to interrupt, then there is no voltage decline on diode and concatenated resistance and negative voltage level has at maximum value
There is bigger magnitude.It can be realized by this manner and method reliable between functional ability and interruption protection conductor
It distinguishes.
It is arranged in the particularly advantageous configuration of the present invention, the interruption of conductor is protected to pass through display device signalling.
If electronic analysis processing unit is determined, due to biggish negative voltage level so protection conductor interrupts, then the electronics
Analysis processing device exports corresponding signal in the display device into charging equipment.The signal can be corresponding warning symbol
Number, the caution signal is shown on the display of charging unit, but it is also possible that the signal lamp that setting is small, the signal
Lamp for example issues feux rouges or flashing in the protection conductor of interruption.
It is arranged in another configuration of the invention, when protecting the interruption of conductor, analysis processing device shutdown or interruption
The charging voltage of DC voltage energy accumulator.When analysis processing device determine protection conductor interrupted when, then in order to avoid
Danger does not start charging process.If charging process has begun, the charging process is interrupted by analysis processing device.Only
When overcoming the interruption of protection conductor, it just can be again started up charging process and apply corresponding voltage in charging equipment.
Ensure by this manner and method, only just starts and implement charging process in the protection conductor of functional ability, in
Since security reason turns off charging voltage when disconnected protection conductor.
It is arranged in another configuration of the invention, the alternating-current voltage source only just exports it at the time of predetermined and is used for
The alternating voltage of check protection conductor.In practice, it is led for check protection when only just applying in determining time interval
It is enough when the alternating voltage of body is so as to conventionally check protection conductor.It is also possible that inserting when charge cable
The just inspection of setting protection conductor when connection device is inserted into the connector of electric vehicle in succession.
Furthermore it is advantageously provided, the positive voltage measured in the connection of DC voltage energy accumulator by analysis processing device
The magnitude of half-wave reduces.In addition to the negative voltage half-wave of the Functional Capability for detecting protection conductor, analysis processing device exists
It is also used for controlling charging process in the protection conductor of functional ability in this situation.In the plug-in connector of charge cable
At the time of being inserted into the connector of electric vehicle, there is voltage drop by resistance, the voltage drop is examined by analysis processing device
It surveys.Thus may determine that whether charging equipment connect with electric vehicle and whether can start to charge process.Therefore, positive
Decline of the voltage half-wave in analysis processing device is used as the signal for starting charging process.It is arranged herein, by with lower section
Formula starts charging process: closing at switch present in DC voltage energy accumulator.
Furthermore it is advantageously provided, by the closure of the switch in DC voltage energy accumulator, is surveyed by analysis processing device
The positive amplitude of the voltage of amount further declines and is then switched on the charging voltage for charging to DC voltage energy accumulator.
The resistance for starting charging process is connected by the closure of switch, thus voltage drop is further increased and handled by analysis
The voltage of device measurement further decreases.Provide the charging connected for charging to DC voltage energy accumulator now as a result,
The signal of voltage.Charging voltage is related to rectified alternating voltage, and is used to control charging process to detect the inspection of protection conductor
Looking into voltage is in alternating voltage in low voltage range, preferably between+12V and -13V.The friendship in low voltage range
Galvanic electricity pressure be used only for control charging process, monitoring protection conductor and be not used in DC voltage supply energy storage device with
And it charges to energy storage device.Charging voltage is provided by the energy source of more functional ability, and the energy source is capable of providing use
In the high charging current of DC energy memory.
Detailed description of the invention
The present invention is described in detail and illustrated below according to multiple attached drawings.Attached drawing is shown:
Fig. 1: the basic circuit diagram of charging equipment, the charging equipment is according to according to the present invention for giving DC voltage energy
Measure the method work of memory charging；
Fig. 2: the voltage drop in electronic analysis processing unit, the electronic analysis processing unit control charging process and supervise
Functional Capability depending on protecting conductor.
Specific embodiment
Fig. 1 shows protection conductor PE, and the protection conductor is for being grounded the electric vehicle 6 connecting with charging equipment 3.?
This, charging equipment 3 is only partially shown, in the range required for for the present invention.Particularly, it is not shown in Fig. 1
For providing the voltage supply of the charging voltage with correspondingly high power.More precisely, Fig. 1, which is shown, checks circuit, with
Just monitoring protects conductor PE and controls charging process.For this purpose, charging equipment 3 has alternating-current voltage source 5, the alternating-current voltage source
It is configured to operational amplifier herein and the alternating voltage between+12V and -13V is provided.Alternating-current voltage source 5 passes through resistance R3
With node P1Connection, the value of the resistance are predetermined with the standard for electric vehicle.In the node P1Place's detection voltage UCP,
The voltage is conveyed to the electronic analysis processing unit 4 in the form of the processor with analog-digital converter.With simulation number
Analysis handles voltage U to the processor 4 of word converter as followsCP: the protection whether functional ability of conductor PE, and be furthermore used for
Charging process is controlled according to positive voltage detected.
Charge cable with vehicle connector 1 is between charging equipment 3 and electric vehicle 6.In the vehicle grafting
In device 1, there are another resistance R on the side of charging equipment4, another resistance and diode D2Series connection, the diode is to cut
Only direction biases.It means that only when applying the negative voltage half-wave of alternating-current voltage source 5, in diode D2It is upper and
Resistance R4It is upper just to reduce voltage.In electric vehicle 6, there are another diode D1And resistance R1, so as to detect electric vehicle
6 with the connection of the vehicle connector 1 of charging equipment 3.Because of diode D1It is biased with conducting direction, so only when in the presence of friendship
When the positive half-wave of galvanic electricity potential source, in resistance R1It is upper just to apply voltage.In this case, positive voltage detected from 12V by
In diode D1With resistance R1On voltage drop correspondingly drop to 9V.Resistance R1Measurement equally with the mark for electric vehicle
It is quasi- predetermined.Resistance R2Together with switch S2Ensure, as switch S2When closure is to start to charge process, in the switch S of closure2When survey
Measure point P1The voltage U of the positive half-wave at placeCPFurther decline.Pass through switch S2Closure come connect be not shown herein for
The charging voltage of battery charging in electric vehicle 6.
As long as protection conductor PE is that continuously, in negative voltage half-wave, electric current flows through resistance R from alternating-current voltage source 53、
Resistance R4With diode D2.Resistance R is being measured with 1k Ohm3And resistance R is measured with 25Ohm4When voltage be reduced to -1V, the electricity
Pressure drop is by diode D2On -0.7V voltage drop and resistance R4On -0.3V voltage drop composition.It means that being put in operation
Voltage -12V is detected by the processor 4 with analog-digital converter when output voltage on big device is -13V.However, when filling
It is when charge cable between electric equipment 3 and connector 1 is interrupted by the damage at disengaged position 2, then electric in negative half-wave
Stream is no longer flow through resistance R3, resistance R4, diode D2With protection conductor PE.Therefore, in resistance R4With diode D2On also no longer under
It drops negative voltage and the processor with analog-digital converter detects voltage level -13V.Therefore, turn with simulation numeral
The processor of parallel operation can by detect negative voltage half-wave and herein voltage -12V or -13V detected determine, protection
The whether functional ability of conductor PE.
If protection conductor PE does not have Functional Capability and detects voltage-by the processor with analog-digital converter
13V then can export corresponding signal in the display device 7 of charging equipment 3 to alert operator.In addition, having simulation number
The processor of word converter can prevent from connecting in the situation charging electricity for charging to the battery in electric vehicle 6
Pressure.
It is shown in FIG. 2 in different moments T1To T5When measurement point P1The voltage change at place.Here, shown in Fig. 2
Voltage UCPIt is detected by the processor 4 with analog-digital converter and can be correspondingly analyzed and processed to control charging
Process and monitor protection conductor PE.In moment T1, apply positive voltage 12V, wherein vehicle connector 1 not with electric vehicle 6
Connection.In moment T2, detect the negative half-wave of alternating voltage, wherein application -12V.It means that the protection functional energy of conductor PE
Power.In moment T3There is identical state.In moment T4, vehicle connector 1 connect with electric vehicle 6, and in positive half-wave
Resistance R1Upper generation voltage drop.As a result, in moment T4, make by the positive half-wave detected of processor 4 with analog-digital converter
It is reduced to 9V.Therefore, charging equipment 3 is it is well known that vehicle connector 1 is connect with electric vehicle 6.The state remains unchanged directly
To moment T5.In moment T5, closure is with the switch S in the electric vehicle 6 of charging voltage2.Increase voltage drop as a result, and has
There is the processor 4 of analog-digital converter only to detect voltage 6V.This is voltage UCP, the voltage is in electric vehicle 6
Battery charging during be detected.If protecting conductor PE to interrupt during the charging process or before charging process,
Then negative voltage half-wave drops to -13V and charging process is interrupted or do not started even to charging process.Pass through this side
Formula method ensures in terms of Functional Capability reliably check protection conductor PE and thereby, it is ensured that is only correctly connecting with GND
Safe charging process when conductor PE is protected, to not occur potential difference on electric vehicle 6 and personnel may be endangered.
List of reference signs
1 vehicle connector
2 disengaged positions
3 charging equipments
The electronic analysis processing unit of the 4 processor forms with analog-digital converter
5 are configured to the alternating-current voltage source of operational amplifier
6 electric vehicles
7 display devices
PE protects conductor
GND ground connection
P1Measurement point
R1、R2、R3、R4Resistance
D1、D2Diode
S2Switch
UCPThe voltage of measurement point
T1、T2、T3、T4、T5Time section
Claims (10)
1. a kind of method for charging to DC voltage energy accumulator, wherein the DC voltage energy accumulator can
It separates and connects with charging unit (3) by electric plug connector (1), wherein the electric plug connector (1) is described
Pass through resistance (R on the side of DC voltage energy accumulator4) and concatenated diode (D2) be arranged in by the route of guidance voltage
Between the conductor and protection conductor (PE) of composition,
It is characterized in that,
Diode (the D2) to end direction biasing, connection has the alternating voltage of positive voltage and negative voltage on the conductor
Source (5), by least negative the half of the alternating voltage that electronic analysis processing unit (4) detection is provided by the alternating-current voltage source (5)
Wave and the guarantor between charging unit (3) and electric plug connector (1) is sought according to negative voltage level detected
Protect and lead whether body (PE) has interrupted.
2. existing the method according to claim 1, wherein negative voltage level interrupts when ratio in protection conductor (PE)
With bigger magnitude when protection conductor (PE) is not interrupted.
3. method according to claim 1 or 2, which is characterized in that the alternating-current voltage source (5) is provided in+12V and -13V
Between alternating voltage.
4. method according to claim 1 or 2, which is characterized in that the interruption of protection conductor (PE) passes through display dress
Set (7) signalling.
5. method according to claim 1 or 2, which is characterized in that the electricity in the interruption of protection conductor (PE)
Sub- analysis processing device (4) shutdown is used for the charging voltage of the DC voltage energy accumulator.
6. method according to claim 1 or 2, which is characterized in that the alternating-current voltage source (5) is only when predetermined
Carving output, it is used to check the alternating voltage of protection conductor (PE).
7. method according to claim 1 or 2, which is characterized in that in the connection of DC voltage energy accumulator, by described
The magnitude of the positive voltage half-wave of electronic analysis processing unit (4) measurement reduces.
8. being used for the method according to the description of claim 7 is characterized in that the reduction of positive voltage half-wave is used to start
To the signal for the charging process that DC voltage energy accumulator charges.
9. according to the method described in claim 8, it is characterized in that, the DC voltage energy accumulator has switch (S2) simultaneously
And the closure switch (S2)。
10. according to the method described in claim 9, it is characterized in that, by being closed the switch (S2), by the electronic analysis
The positive amplitude of the voltage of processing unit (4) measurement further declines and is then switched on for the DC voltage energy stores
The charging voltage of device charging.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014013660.4 | 2014-09-15 | ||
| DE102014013660 | 2014-09-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429196A CN105429196A (en) | 2016-03-23 |
| CN105429196B true CN105429196B (en) | 2019-07-12 |
Family
ID=55406262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708863.9A Active CN105429196B (en) | 2014-09-15 | 2015-09-14 | The monitoring of conductor is protected during the charging process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105429196B (en) |
| DE (1) | DE102015216191A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017213357B3 (en) | 2017-08-02 | 2018-10-31 | Heidelberger Druckmaschinen Ag | Method and device for earthing resistance detection in a charging cable |
| DE102019133675A1 (en) * | 2019-12-10 | 2021-06-10 | Audi Ag | System for controlling a connection of a protective line of a transmission facility |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521782A (en) * | 1992-04-10 | 1996-05-28 | Electroimpact, Inc. | Ground fault detection system in a power supply for an electromagnetic riveting apparatus |
| CN101567578A (en) * | 2009-05-26 | 2009-10-28 | 苏州益高电动车辆制造有限公司 | Automatic charging equipment for electric vehicle |
| CN101609124A (en) * | 2009-07-03 | 2009-12-23 | 株洲南车时代电气股份有限公司 | A kind of ground detecting method of power supply system of train |
| CN104029605A (en) * | 2012-07-31 | 2014-09-10 | 华立仪表集团股份有限公司 | Charging control guidance module for alternating-current charging pile of electric automobile |
-
2015
- 2015-08-25 DE DE102015216191.9A patent/DE102015216191A1/en active Pending
- 2015-09-14 CN CN201510708863.9A patent/CN105429196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521782A (en) * | 1992-04-10 | 1996-05-28 | Electroimpact, Inc. | Ground fault detection system in a power supply for an electromagnetic riveting apparatus |
| CN101567578A (en) * | 2009-05-26 | 2009-10-28 | 苏州益高电动车辆制造有限公司 | Automatic charging equipment for electric vehicle |
| CN101609124A (en) * | 2009-07-03 | 2009-12-23 | 株洲南车时代电气股份有限公司 | A kind of ground detecting method of power supply system of train |
| CN104029605A (en) * | 2012-07-31 | 2014-09-10 | 华立仪表集团股份有限公司 | Charging control guidance module for alternating-current charging pile of electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015216191A1 (en) | 2016-03-17 |
| CN105429196A (en) | 2016-03-23 |
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