CN102866700A - Control guide tester for connecting device of electric vehicle and alternating-current charging pile and implementing method for control guide tester - Google Patents

Control guide tester for connecting device of electric vehicle and alternating-current charging pile and implementing method for control guide tester Download PDF

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Publication number
CN102866700A
CN102866700A CN2012102908036A CN201210290803A CN102866700A CN 102866700 A CN102866700 A CN 102866700A CN 2012102908036 A CN2012102908036 A CN 2012102908036A CN 201210290803 A CN201210290803 A CN 201210290803A CN 102866700 A CN102866700 A CN 102866700A
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China
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tester
electric vehicle
terminal
charging pile
control
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CN2012102908036A
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Chinese (zh)
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CN102866700B (en
Inventor
李志明
丁孝华
叶健诚
张萱
桑林
李旭玲
马彦华
董晨
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中国电力科学研究院
国家电网公司
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Abstract

The invention relates to a control guide tester for a connecting device of an electric vehicle and an alternating-current charging pile and an implementing method for the control guide tester. By the control guide tester, the full process of establishing charging connection between the electric vehicle and an electric vehicle charging pile and finishing charging is simulated; connection states and parameters of the electric vehicle alternating-current charging pile and the electric vehicle are tested; and the time sequence accuracy and the reliability of the full process of establishing physical connection and electric connection between the charging pile and the electric vehicle are tested according to the GB/T 20234-2011 requirements. A user is remind of the current test state by the control guide tester in a visual way; an interface communicated with external equipment is reserved; and test information can be transmitted to a computer or other processing devices in the form of messages. The control guide tester can provide a means and a tool for effectively testing and evaluating the time sequence accuracy and the reliability of a control guide signal of the connecting device of the electric vehicle and the alternating-current charging pile for a professional test mechanism or an electric vehicle manufacturer.

Description

Electric vehicle alternating-current charging pile coupling arrangement control guiding tester and implementation method
Technical field
The present invention relates to test and metering field, be specifically related to a kind of electric vehicle alternating-current charging pile coupling arrangement control guiding tester and implementation method.
Background technology
Advocate in the whole world under the background of low-carbon economy, be energy savings, minimizing greenhouse gas emission, the center of gravity of automobile industry development changes, and the development new-energy automobile has become mainstream development trend.Electric automobile has the characteristics such as zero-emission, high energy efficiency, operation and maintenance cost be low, and popularizing of electric automobile can effectively alleviate human development to the environment build-up of pressure.
Along with China's electric vehicle charging changes moving forward steadily of electric infrastructure construction, the development prospect of electric automobile is had an optimistic view of by industry.Electric vehicle charging changes electric facility as the base apparatus of electric automobile ability supply, and the standardization of its interface and compatibility have very important effect to electric automobile interfix compatibility.At present, China does not still have ripe miniaturization solution, normally cooperates to finish relevant test by oscillograph, high accuracy number table meter, and needs well-designed to testing scheme of personnel, and the stability of test and reliability are not good.Standardization for standard electric automobile charging/discharging apparatus interface, the present invention proposes a kind of implementation method for test electric vehicle alternating-current charging pile control guiding instrument, means and the instrument of effective detection, assessment electric vehicle alternating-current charging pile coupling arrangement control steering signal sequential correctness and reliability can be provided for professional testing agency or electric automobile producer.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of electric vehicle alternating-current charging pile coupling arrangement control guiding tester and implementation method, scheme provided by the invention can provide for professional testing agency or electric automobile producer means and the instrument of effective detection, assessment electric vehicle alternating-current charging pile coupling arrangement control steering signal sequential correctness and reliability.
The objective of the invention is to adopt following technical proposals to realize:
A kind of electric vehicle alternating-current charging pile coupling arrangement control guiding tester, its improvements are that described control guiding tester comprises:
Controller: be used for controlling described control guiding tester charged state;
Interface unit: be used for realizing control steering signal and the level match that is connected confirmation signal and described controller;
Power module: for control guiding tester provides power supply; In the described power module incoming transport 220V civil power;
Human-computer interaction module: be used for the mutual of user and described control guiding tester;
Bus driver module: be used for realizing described controller universal serial bus and external unit level match, electrical isolation and protection;
Relay S1 and S2: be used for realizing that the state of described control guiding tester switches.
Wherein, described interface unit comprises Interface Terminal and driving circuit; Described Interface Terminal comprises input terminal and lead-out terminal;
Described input terminal is connected with the terminal of connection cable plug; Described lead-out terminal is connected with described controller;
Described driving circuit is connected with the pin that described controller has the IO function, is used for driving described relay S1 and S2.
Wherein, described input terminal comprises connection confirmation signal terminal CC, control steering signal terminal CP and ground signalling terminal COM;
Described connection confirmation signal terminal CC connects with the confirmation signal terminal CC that is connected of connection cable plug;
Described control steering signal terminal CP is connected with the control steering signal terminal CP of connection cable plug;
Described ground signalling terminal COM is connected with the ground signalling terminal COM of connection cable plug.
Wherein, described lead-out terminal comprises that lead-out terminal 1.-7.;
1. described lead-out terminal is connected with the input terminal that described controller has a collection of simulant signal;
2.-7. described lead-out terminal is connected with the input terminal that described controller has a PWM capturing function.
Wherein, described driving circuit comprises S1 driving circuit and the S2 driving circuit that structure is identical;
Described S1 driving circuit is connected diode, amplifying circuit, optocoupler and the reactor that connects successively with the S2 driving circuit; Described optocoupler ground connection.
Wherein, described human-computer interaction module is touch LCD screen; Described human-computer interaction module is connected with described controller by parallel bus.
Wherein, described bus driver module comprises bus driver 1 and bus driver 2; Described bus driver 1 is connected with bus driver and is connected with described controller by universal serial bus; Described bus driver 1 is connected with bus driver and is connected with external unit by the RS485 bus; Described external unit comprises load and external communication interface.
Wherein, described bus driver 1 is identical with bus driver 2 structures, includes optocoupler branch road, RS485 driver and receiver and two voltage stabilizing diodes of three parallel connections; The optocoupler branch road of described three parallel connections is connected with receiver with the RS485 driver respectively; One of them voltage stabilizing diode is connected with the RS485-A terminal; Another voltage stabilizing diode is connected with the RS485-B terminal.
Wherein, described relay S1 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S1 branch road; Described S2 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S2 branch road; Described S1 branch road and S2 branch circuit parallel connection; Two relay difference ground connection; Described relay S1 and S2 are defaulted as off-state (relay S1 and S2 are realized adhesive and the disconnection of S1 and S2 by the coil in the driving circuit pilot relay of Fig. 7 and Fig. 8).
Wherein, described control guiding tester charged state comprises normal condition and abnormality.
The implementation method of tester is guided in a kind of electric vehicle alternating-current charging pile coupling arrangement control that the present invention is based on another purpose provides, and it is characterized in that described method comprises the steps:
(1) described control guiding tester is connected with charge cable;
(2) gather described lead-out terminal magnitude of voltage 1. and definite charge cable capacity P1;
(3) judge whether normally (cable capacity P1 determines that according to Fig. 3 lead-out terminal magnitude of voltage 1. cable capacity, Va are a certain specific voltage signal that power module is drawn to described charge cable capacity P1, and preferred value is 5V, if R1=2K is Ω.So, when the cable capacity was 16A, lead-out terminal magnitude of voltage 1. was about 1.27V; When the cable capacity was 32A, lead-out terminal magnitude of voltage 1. was about 0.50V);
(4) judge whether described control guiding tester is in normal condition in charging process A;
(5) pilot relay S1 is closed, confirms whether described charge cable is connected fully with described control guiding tester;
(6) judge whether described control guiding tester is in normal condition in charging process B-1;
(7) the electric vehicle alternating-current charging pile correlation parameter is set;
(8) judge whether described control guiding tester is in normal condition in charging process B-2;
(9) gather the pwm signal dutycycle that tester is guided in described control, determine electric vehicle alternating-current charging pile power supply capacity P2;
(10) pilot relay S2 is closed, asks to be the charging of described control guiding tester;
(11) selecting the minimum value of electric current corresponding to cable capacity P1, electric vehicle alternating-current charging pile output capacity P2 and Vehicular charger rated capacity P3 is charging current, starting load;
(12) judge whether described control guiding tester is in normal condition in charging process C;
(13) charging status information is sent to human-computer interaction module and external communication interface;
(14) judge whether described control guiding tester pwm signal dutycycle changes;
(15) redefine electric vehicle alternating-current charging pile power supply capacity P2, and set the load charging current;
(16) judge whether the charging of control guiding tester finishes;
(17) close load, recover the original state of described control guiding tester, be i.e. idle condition (normal test process needs the user to start by the interpersonal interactive interface of touch-screen);
(18) test process finishes.
Wherein, it is characterized in that in the described step (1), described control guiding tester is connected with charge cable, the DC level of control steering signal terminal CP output 12V.
Wherein, in the described step (2), the state that connects confirmation signal terminal CC by monitoring is determined charge cable capacity P1; The charge cable capacity represents with following IV formula:
Va × Rc R 1 + Rc = V sample - - - ( IV ) ;
In the formula: Va represents a certain level value of power module, and preferred value is 5V; Rc represents to characterize on the charging cable resistance of cable capacity, and 220 ohm and 680 ohm of two values are arranged; R1 represents the resistance in the tester, and preferred value is 2K ohm; V SampleExpression lead-out terminal magnitude of voltage 1.;
During Rc=680 Ω, charge cable capacity P1 is 16A; During Rc=220 Ω, charge cable capacity P1 is 32A; Va and R1 satisfy actual power loss and precision; V SampleBe no more than the measurement range of described controller, measurement range is between 0-3.3V.
Wherein, in the described step (3), be 5V at Va, during R1=2K Ω, be normal condition when recording lead-out terminal magnitude of voltage 1. and being 1.27V or 0.5V, the state that all the other voltages are corresponding all is abnormality;
If described charge cable capacity is normal, then carry out step (4); Otherwise, carry out step (13).
Wherein, in the described step (4), guide the output DC of the control steering signal terminal CP of tester when control and put down at 11.4V<V INIn the time of in<12.6V standard error the scope, 2. and 3. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process A;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 11.4V or V INDuring 〉=12.6V, 2. and 3. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process A; V wherein INThe magnitude of voltage corresponding to high level of expression input voltage signal;
If described control guiding tester is in normal condition in charging process A, then carry out step (5); Otherwise, carry out step (13).
Wherein, in the described step (6), guide the output DC of the control steering signal terminal CP of tester when control and put down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process B-1;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process B-1;
If described control guiding tester is in normal condition in charging process B-1, then carry out step (7); Otherwise, carry out step (13).
Wherein, in the described step (7), described electric vehicle alternating-current charging pile correlation parameter comprises that charge mode, user authenticate and the machine for punching the card expense.
Wherein, in the described step (8), guide the output DC of the control steering signal terminal CP of tester when control and put down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process B-2;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process B-2;
If described control guiding tester is in normal condition in charging process B-2, then carry out step (7); Otherwise, carry out step (13).
Wherein, in the described step (9), described pwm signal dutycycle is to determine by " periodicity of certain timer in the controller " that measurement pwm signal high level and low level experience, such as N timing cycle of high level experience, M timing cycle of low level experience, dutycycle is N/(M+N so).
Wherein, in the described step (11), when one of following situation occured, described control guiding tester stopped loaded work piece:
A, electric vehicle alternating-current charging pile reach the charge condition that the user arranges;
B, control guiding tester disconnect S2 and stop charging process;
C, pwm signal interrupt;
D, become off-state with the normally closed switch S3 of the push button of connection cable plug interlock by closure, and keep more than the 300ms;
In e, the charging process, described control steering signal terminal CP becomes non-6V pwm signal, namely lead-out terminal 6., when 7. the high level voltage scope is between 5.2V-6.8V;
In f, the charging process, described electric vehicle alternating-current charging pile earth leakage protective device action causes load-side under-voltage;
When electric vehicle alternating-current charging pile is finished charging process or accidental interruption charging, guarantee that the level value of controlling the control steering signal terminal CP that guides tester is in 11.4V ~ 12.6V standard permissible error scope; The actual voltage value of test programmable load guarantees that electric vehicle alternating-current charging pile has disconnected ac circuit.
Wherein, in the described step (12), when the output pwm signal high level of the control steering signal terminal CP of control guiding tester at 5.2V<V INIn the time of in<6.8V standard error the scope, 6. and 7. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process C;
When the high level of the output pwm signal of the control steering signal terminal CP of control guiding tester at V IN≤ 5.2V or V INDuring 〉=6.8V, 6. and 7. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process C;
If described control guiding tester is in normal condition in charging process C, then carry out step (14); Otherwise, return step (13) and carry out step (16).
Wherein, in the described step (14), if described control guiding tester pwm signal dutycycle changes, then carry out step (15); Otherwise, return step (12).
Wherein, power supply capacity, charge cable capacity P1 and the Vehicular charger rated capacity P3 according to electric vehicle alternating-current charging pile redefines electric vehicle alternating-current charging pile power supply capacity P 2.
Wherein, in the described step (16), if the charging of control guiding tester finishes, then carry out step (17); Otherwise, return step (12).
Wherein, after entering charging process, described control guiding tester was monitored the connection status of charge cable with the cycle that is not more than 50ms, the signal of monitoring comprises and connects confirmation signal CC and control steering signal CP, when in case generation connects the abnormal signal that disconnects generation by charge cable, described control guiding tester cuts out the duty of programmable power supply, and the record detecting information;
After entering charging process, described control guiding tester was monitored the power supply capacity of electric vehicle alternating-current charging pile by the dutycycle of control steering signal CP with the cycle that is not more than 5s.
Wherein, it is characterized in that when electric vehicle alternating-current charging pile monitored following signal condition, electric vehicle alternating-current charging pile cut off ac circuit:
I, in charging process, the magnitude of voltage of electric automobile charging pile control steering signal is the state of 12V, 9V or other non-6VPWM signals, then electric automobile charging pile disconnects ac power supply circuit;
Ii, in charging process, electric automobile charging pile is by detecting connecting confirmation signal CC, as detect power supply interface and become disconnection by connecting fully, then electric automobile charging pile makes control steering signal output+12V DC level, and the disconnection ac power supply circuit.
Compared with the prior art, the beneficial effect that reaches of the present invention is:
1, electric vehicle alternating-current charging pile coupling arrangement control guiding tester provided by the invention and implementation method have been filled up the blank that domestic electric vehicle alternating-current charging pile is controlled steering signal test macro technology;
2, electric vehicle alternating-current charging pile coupling arrangement control guiding tester and implementation method are guided tester by this control and can be tested sequential correctness and stability that electric automobile charging pile is controlled steering signal;
3, this control guiding tester is pointed out testing result in close friend's mode to the user, has intuitively, advantage easily;
4, the communication port of control guiding tester makes it easy to other equipment or computing machine integratedly, forms comprehensive coupling arrangement performance detecting platform;
5, the present invention can provide for professional testing agency or coupling arrangement producer the ways and means of effective detection, assessment coupling arrangement control steering signal sequential correctness and stability;
6, can use for the standardization of electric vehicle charge interface, measuring technology means and technical support are provided.
Description of drawings
Fig. 1 is that electric vehicle alternating-current charging pile coupling arrangement control guiding tester provided by the invention forms and the test environment synoptic diagram;
Fig. 2 is the circuit theory diagrams of electric vehicle alternating-current charging pile coupling arrangement control guiding tester interface provided by the invention unit;
Fig. 3 is the connection confirmation signal test circuit figure in the interface unit provided by the invention;
Fig. 4 is the control steering signal test circuit figure (lead-out terminal 2. and 3.) in the interface unit provided by the invention;
Fig. 5 is the control steering signal test circuit figure (lead-out terminal 4. and 5.) in the interface unit provided by the invention;
Fig. 6 is the control steering signal test circuit figure (lead-out terminal 6. and 7.) in the interface unit provided by the invention;
Fig. 7 is interface unit repeat circuit S1 driving circuit figure provided by the invention;
Fig. 8 is interface unit repeat circuit S2 driving circuit figure provided by the invention;
Fig. 9 is bus driving circuits figure provided by the invention;
Figure 10 is the process flow diagram of electric vehicle alternating-current charging pile coupling arrangement control guiding tester implementation method provided by the invention;
Figure 11 is 2. and the 3. level state synoptic diagram of charging process A of interface unit lead-out terminal in the test process provided by the invention;
Figure 12 is 2. and the 3. level state synoptic diagram of charging process A normal condition of interface unit lead-out terminal in the test process provided by the invention;
Figure 13 is 2. and the 3. level state synoptic diagram of charging process A abnormality one of interface unit lead-out terminal in the test process provided by the invention;
Figure 14 is 2. and the 3. level state synoptic diagram of charging process A abnormality two of interface unit lead-out terminal in the test process provided by the invention;
Figure 15 is 4. and the 5. level state synoptic diagram of charging process B-1 of interface unit lead-out terminal in the test process provided by the invention;
Figure 16 is 4. and 5. charging process B-1 normal condition synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 17 is 4. and 5. charging process B-1 abnormality () synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 18 is 4. and 5. charging process B-1 abnormality (two) synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 19 is 4. and the 5. level state synoptic diagram of charging process B-2 of interface unit lead-out terminal in the test process provided by the invention;
Figure 20 is 4. and 5. charging process B-2 normal condition synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 21 is 4. and 5. charging process B-2 abnormality () synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 22 is 4. and 5. charging process B-2 abnormality (two) synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 23 is 6. and the 7. level state synoptic diagram of charging process C of interface unit lead-out terminal in the test process provided by the invention;
Figure 24 is 6. and 7. charging process C normal condition synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 25 is 6. and 7. charging process C abnormality () synoptic diagram of interface unit lead-out terminal in the test process provided by the invention;
Figure 26 is 6. and 7. charging process C abnormality (two) synoptic diagram of interface unit lead-out terminal in the test process provided by the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Electric vehicle alternating-current charging pile coupling arrangement control guiding tester composition provided by the invention and test environment are controlled the guiding tester and are comprised as shown in Figure 1:
Controller: be used for controlling described control guiding tester charged state;
Interface unit: be used for realizing control steering signal and the level match that is connected confirmation signal and described controller; The circuit of electric vehicle alternating-current charging pile coupling arrangement provided by the invention control guiding tester interface unit as shown in Figure 2, interface unit comprises Interface Terminal and driving circuit; Interface Terminal comprises input terminal and lead-out terminal;
Input terminal is connected with the terminal of connection cable plug; Described input terminal comprises connection confirmation signal terminal CC, control steering signal terminal CP and ground signalling terminal COM; Connecting confirmation signal terminal CC connects with the confirmation signal terminal CC that is connected of connection cable plug; Control steering signal terminal CP is connected with the control steering signal terminal CP of connection cable plug; Ground signalling terminal COM is connected with the ground signalling terminal COM of connection cable plug.Connection confirmation signal test circuit in the interface unit as shown in Figure 3.
Lead-out terminal is connected with controller; Lead-out terminal comprises that lead-out terminal 1.-7.; 1. lead-out terminal is connected with the input terminal that described controller has a collection of simulant signal; 2.-7. lead-out terminal is connected with the input terminal that described controller has a PWM capturing function.Control steering signal test circuit figure in the interface unit provided by the invention is shown in Fig. 4-6.
Driving circuit is connected with the pin that described controller has the IO function, is used for driving described relay S1 and S2; Driving circuit comprises S1 driving circuit and the S2 driving circuit that structure is identical; The S1 driving circuit is connected diode, amplifying circuit, optocoupler and the reactor that connects successively with the S2 driving circuit; Optocoupler ground connection.Interface unit repeat circuit S1 provided by the invention and S2 driving circuit are shown in Fig. 7 and 8.
Power module: for control guiding tester provides power supply;
Human-computer interaction module: be used for the mutual of user and described control guiding tester; Human-computer interaction module is touch LCD screen; Described human-computer interaction module is connected with described controller by parallel bus.
Bus driver module: be used for realizing described controller universal serial bus and external unit level match, electrical isolation and protection; The bus driver module comprises bus driver 1 and bus driver 2; Described bus driver 1 is connected with bus driver and is connected with described controller by universal serial bus; Bus driver 1 is connected with bus driver and is connected with external unit by the RS485 bus; Described external unit comprises load and external communication interface.Bus driver 1 is identical with bus driver 2 structures, includes optocoupler branch road, RS485 driver and receiver and two voltage stabilizing diodes of three parallel connections; The optocoupler branch road of described three parallel connections is connected with receiver with the RS485 driver respectively; One of them voltage stabilizing diode is connected with the RS485-A terminal; Another voltage stabilizing diode is connected with the RS485-B terminal.Bus driving circuits provided by the invention as shown in Figure 9.
Relay S1 and S2: be used for realizing that the state of described control guiding tester switches; Relay S1 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S1 branch road; Described S2 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S2 branch road; Described S1 branch road is in parallel with S2; Two relay difference ground connection.The interface circuit of S1, S2 such as Fig. 7, shown in Figure 8, S1, S2 control port directly link to each other with the IO port of controller.
The implementation method flow process of electric vehicle alternating-current charging pile coupling arrangement provided by the invention control guiding tester as shown in figure 10, the method comprises the steps:
(1) described control guiding tester is connected with charge cable; The DC level of control steering signal terminal CP output 12V.
(2) gather described lead-out terminal magnitude of voltage 1. and definite charge cable capacity P1: the state that connects confirmation signal terminal CC by monitoring is determined charge cable capacity P1; The charge cable capacity represents with following IV formula:
Va × Rc R 1 + Rc = V sample - - - ( IV ) ;
In the formula: Va represents a certain level value of power module, and preferred value is 5V; Rc represents to characterize on the charging cable resistance of cable capacity, and 220 ohm and 680 ohm of two values are arranged; R1 represents the resistance in the tester, and preferred value is 2K ohm; V SampleExpression lead-out terminal magnitude of voltage 1.;
During Rc=680 Ω, charge cable capacity P1 is 16A; During Rc=220 Ω, charge cable capacity P1 is 32A; Va and R1 satisfy actual power loss and precision; V Sample(measurement range of normal controller is 0-3.3V) to be no more than the measurement range of described controller.
(3) judge whether charge cable capacity P1 is normal; Tester with the reckling among cable capacity P1, electric vehicle alternating-current charging pile output capacity P2, the Vehicular charger rated capacity P3 as load bearing capacity, namely with the minimum value of the electric current of three correspondences as charging current, occurrence is selected according to actual conditions.Being 5V at Va, during R1=2K Ω, is normal condition when recording lead-out terminal magnitude of voltage 1. and being 1.27V or 0.5V, and the state that all the other voltages are corresponding all is abnormality.
If the charge cable capacity is normal, then carry out step (4); Otherwise, carry out step (13).
In test process, control guiding tester needs 3 level values of Monitoring and Controlling steering signal CP, relates to corresponding 6 threshold values.As shown in Figure 2, interface unit detects control steering signal level value, and is converted into and controller compatible logic level or pwm signal mutually.Among the figure, U2-U7 is voltage comparator, V bLevel value is not less than 12.6V, preferred 15V, V DdLevel value should be compatible with controller logic voltage.Wherein, the choosing of R2-R13 is worth to satisfy under actual power loss, the precision conditions, also should satisfy following condition:
V b × R 3 R 2 + R 3 = V 12 + , V b × R 5 R 4 + R 5 = V 12 - - - - ( I ) ;
V b × R 7 R 6 + R 7 = V 9 + , V b × R 9 R 8 + R 9 = V 9 - - - - ( II ) ;
V b × R 11 R 10 + R 11 = V 6 + , V b × R 13 R 12 + R 13 = V 6 - - - - ( III ) ;
Wherein, V 12+=12.6V, V 12-=11.4V, V 9+=9.8V, V 9-=8.2V, V 6+=6.8V, V 6-=5.2V.
(4) judge whether control guiding tester is in normal condition in charging process A: the output DC of guiding the control steering signal terminal CP of tester when control is put down at 11.4V<V INIn the time of in<12.6V standard error the scope, 2. and 3. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process A;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 11.4V or V INDuring 〉=12.6V, 2. and 3. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process A; V wherein INThe magnitude of voltage corresponding to high level of input voltage signal.If control guiding tester is in normal condition in charging process A, then carry out step (5); Otherwise, carry out step (13).In the test process provided by the invention the interface unit lead-out terminal 2. and 3. the synoptic diagram of level state, normal condition, abnormality () and the abnormality (two) of charging process A shown in Figure 11-14.
(5) pilot relay S1 is closed, confirms whether described charge cable is connected fully with described control guiding tester;
(6) judge whether described control guiding tester is in normal condition in charging process B-1: the output DC of guiding the control steering signal terminal CP of tester when control is put down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, i.e. control guiding tester is in normal condition in charging process B-1;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, i.e. control guiding tester is in abnormality in charging process B-1;
If control guiding tester is in normal condition in charging process B-1, then carry out step (7); Otherwise, carry out step (13).In the test process provided by the invention the interface unit lead-out terminal 4. and 5. the synoptic diagram of level state, normal condition, abnormality () and the abnormality (two) of charging process B-1 shown in Figure 15-18.
(7) the electric vehicle alternating-current charging pile correlation parameter is set: the electric vehicle alternating-current charging pile correlation parameter comprises that charge mode, user authenticate and machine for punching the card expense etc., start affirmation.
(8) judge whether described control guiding tester is in normal condition in charging process B-2: the output DC of guiding the control steering signal terminal CP of tester when control is put down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, i.e. control guiding tester is in normal condition in charging process B-2;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, i.e. control guiding tester is in abnormality in charging process B-2;
If control guiding tester is in normal condition in charging process B-2, then carry out step (7); Otherwise, carry out step (13).In the test process provided by the invention the interface unit lead-out terminal 4. and 5. the synoptic diagram of level state, normal condition, abnormality () and the abnormality (two) of charging process B-2 shown in Figure 19-22.
Control steering signal end CP should export the pwm signal take 9V/1KHz as reference value, tester is tested its output high level whether in 8.2V-9.8V standard permissible error scope, test its output frequency whether in 970Hz-1030Hz standard permissible error scope, test simultaneously the pwm signal dutycycle, the pwm signal dutycycle is to determine by " periodicity of certain timer in the controller " that measurement pwm signal high level and low level experience, such as N timing cycle of high level experience, M timing cycle of low level experience, dutycycle is N/(M+N so).
(9) gather the pwm signal dutycycle that tester is guided in described control, determine electric vehicle alternating-current charging pile power supply capacity P2;
(10) pilot relay S2 is closed, asks to be the charging of control guiding tester; Control steering signal CP parameter is in standard permissible error scope, and electric vehicle alternating-current charging pile immediately closing relay S2 makes the ac power supply circuit conducting; Control steering signal terminal CP is then continuing monitoring CP end output signal without any effectively pwm signal output, exceeds the time limit should withdraw from, and the prompting failure information.When relay S2 is closed, frequency (970Hz-1030Hz), level value (5.2V-6.8V), the dutycycle (electric vehicle alternating-current charging pile power supply capacity P2) of control guiding tester Monitoring and Controlling steering signal end CP.
(11) select suitable (tester with the reckling among cable capacity P1, electric vehicle alternating-current charging pile output capacity P2, the Vehicular charger rated capacity P3 as load bearing capacity, namely with the minimum value of the electric current of three correspondences as charging current, occurrence is selected according to actual conditions.) charging current, starting load: when one of following situation occured, described control guiding tester stopped loaded work piece:
A, electric vehicle alternating-current charging pile reach the charge condition that the user arranges;
B, control guiding tester disconnect S2 and stop charging process;
C, pwm signal interrupt;
D, become off-state with the normally closed switch S3 of the push button of connection cable plug interlock by closure, and keep more than the 300ms; S3 be with the connection cable plug on the normally closed switch of push button interlock, be placed in the inside of vehicle plug, press the button when removing the mechanical locking function, S3 is in off-state;
In e, the charging process, described control steering signal terminal CP becomes non-6V pwm signal, namely lead-out terminal 6., when 7. the high level voltage scope is between 5.2V-6.8V;
In f, the charging process, described electric vehicle alternating-current charging pile earth leakage protective device action causes load-side under-voltage;
When electric vehicle alternating-current charging pile is finished charging process or accidental interruption charging, guarantee that the level value of controlling the control steering signal terminal CP that guides tester is in 11.4V ~ 12.6V standard permissible error scope; The actual voltage value of test programmable load guarantees that electric vehicle alternating-current charging pile has disconnected ac circuit.
(12) judge whether described control guiding tester is in normal condition in charging process C: the output DC of guiding the control steering signal terminal CP of tester when control is put down at 5.2V<V INIn the time of in<6.8V standard error the scope, 6. and 7. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process C;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 5.2V or V INDuring 〉=6.8V, 6. and 7. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process C;
If described control guiding tester is in normal condition in charging process C, then carry out step (14); Otherwise, return step (13) and carry out step (16).In the test process provided by the invention the interface unit lead-out terminal 6. and 7. the synoptic diagram of level state, normal condition, abnormality () and the abnormality (two) of charging process B-2 shown in Figure 23-26.
(13) charging status information is sent to human-computer interaction module and external communication interface;
(14) judge whether control guiding tester pwm signal dutycycle changes; If described control guiding tester pwm signal dutycycle changes, then carry out step (15); Otherwise, return step (12).
(15) redefine electric vehicle alternating-current charging pile power supply capacity P2, and set the load charging current: power supply capacity, charge cable capacity P1 and Vehicular charger rated capacity P3 according to electric vehicle alternating-current charging pile redefine electric vehicle alternating-current charging pile power supply capacity P2.
(16) judge whether the charging of control guiding tester finishes: if the charging of control guiding tester finishes, then carry out step (17); Otherwise, return step (12).
(17) close load, recover the original state of described control guiding tester;
(18) test process finishes.
After entering charging process, described control guiding tester was monitored the connection status of charge cable with the cycle that is not more than 50ms, the signal of monitoring comprises and connects confirmation signal CC and control steering signal CP, when in case generation connects the abnormal signal that disconnects generation by charge cable, described control guiding tester cuts out the duty of programmable power supply, and the record detecting information;
After entering charging process, described control guiding tester was monitored the power supply capacity of electric vehicle alternating-current charging pile by the dutycycle of control steering signal CP with the cycle that is not more than 5s.
When electric vehicle alternating-current charging pile monitored following signal condition, electric vehicle alternating-current charging pile cut off ac circuit:
I, in charging process, the magnitude of voltage of electric automobile charging pile control steering signal is the state of 12V, 9V or other non-6VPWM signals, then electric automobile charging pile disconnects ac power supply circuit;
Ii, in charging process, electric automobile charging pile is by detecting connecting confirmation signal CC, as detect power supply interface and become disconnection by connecting fully, then electric automobile charging pile makes control steering signal output+12V DC level, and the disconnection ac power supply circuit.
The present invention realizes the switching of charging process state by S1, S2.After electric vehicle alternating-current charging pile and tester were set up physical connection by charge cable, the S1 closure was set up fully the two to connect.After electric vehicle alternating-current charging pile should be finished arranging of charging pile correlation parameter, S2 close request power supply, electric vehicle alternating-current charging pile is confirmed to begin power supply after errorless.The present invention can provide for professional testing agency or electric automobile producer means and the instrument of effective detection, assessment electric vehicle alternating-current charging pile coupling arrangement control steering signal sequential correctness and reliability.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (26)

1. an electric vehicle alternating-current charging pile coupling arrangement control guiding tester is characterized in that, described control guiding tester comprises:
Controller: be used for controlling described control guiding tester charged state;
Interface unit: be used for realizing control steering signal and the level match that is connected confirmation signal and described controller;
Power module: for control guiding tester provides power supply; In the described power module incoming transport 220V civil power;
Human-computer interaction module: be used for the mutual of user and described control guiding tester;
Bus driver module: be used for realizing described controller universal serial bus and external unit level match, electrical isolation and protection;
Relay S1 and S2: be used for realizing that the state of described control guiding tester switches.
2. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 1 is characterized in that described interface unit comprises Interface Terminal and driving circuit; Described Interface Terminal comprises input terminal and lead-out terminal;
Described input terminal is connected with the terminal of connection cable plug; Described lead-out terminal is connected with described controller;
Described driving circuit is connected with the pin that described controller has the IO function, is used for driving described relay S1 and S2.
3. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 2 is characterized in that, described input terminal comprises connection confirmation signal terminal CC, control steering signal terminal CP and ground signalling terminal COM;
Described connection confirmation signal terminal CC connects with the confirmation signal terminal CC that is connected of connection cable plug;
Described control steering signal terminal CP is connected with the control steering signal terminal CP of connection cable plug;
Described ground signalling terminal COM is connected with the ground signalling terminal COM of connection cable plug.
4. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 2 is characterized in that described lead-out terminal comprises that lead-out terminal 1.-7.;
1. described lead-out terminal is connected with the input terminal that described controller has a collection of simulant signal;
2.-7. described lead-out terminal is connected with the input terminal that described controller has a PWM capturing function.
5. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 2 is characterized in that described driving circuit comprises S1 driving circuit and the S2 driving circuit that structure is identical;
Described S1 driving circuit is connected diode, amplifying circuit, optocoupler and the reactor that connects successively with the S2 driving circuit; Described optocoupler ground connection.
6. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 1 is characterized in that described human-computer interaction module is touch LCD screen; Described human-computer interaction module is connected with described controller by parallel bus.
7. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 1 is characterized in that described bus driver module comprises bus driver 1 and bus driver 2; Described bus driver 1 is connected with bus driver and is connected with described controller by universal serial bus; Described bus driver 1 is connected with bus driver and is connected with external unit by the RS485 bus; Described external unit comprises load and external communication interface.
8. tester is guided in electric vehicle alternating-current charging pile coupling arrangement control as claimed in claim 7, it is characterized in that, described bus driver 1 is identical with bus driver 2 structures, includes optocoupler branch road, RS485 driver and receiver and two voltage stabilizing diodes of three parallel connections; The optocoupler branch road of described three parallel connections is connected with receiver with the RS485 driver respectively; One of them voltage stabilizing diode is connected with the RS485-A terminal; Another voltage stabilizing diode is connected with the RS485-B terminal.
9. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 1 is characterized in that, described relay S1 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S1 branch road; Described S2 one end is connected with the connecting line of control steering signal terminal CP, and the other end is connected with reactor, forms relay S2 branch road; Described S1 branch road and S2 branch circuit parallel connection; Two relay difference ground connection; Described relay S1 and S2 are defaulted as off-state.
10. electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 1 is characterized in that, described control guiding tester charged state comprises normal condition and abnormality.
11. the implementation method of an electric vehicle alternating-current charging pile coupling arrangement control guiding tester is characterized in that described method comprises the steps:
(1) described control guiding tester is connected with charge cable;
(2) gather described lead-out terminal magnitude of voltage 1. and definite charge cable capacity P1;
(3) judge whether described charge cable capacity P1 is normal;
(4) judge whether described control guiding tester is in normal condition in charging process A;
(5) pilot relay S1 is closed, confirms whether described charge cable is connected fully with described control guiding tester;
(6) judge whether described control guiding tester is in normal condition in charging process B-1;
(7) the electric vehicle alternating-current charging pile correlation parameter is set;
(8) judge whether described control guiding tester is in normal condition in charging process B-2;
(9) gather the pwm signal dutycycle that tester is guided in described control, determine electric vehicle alternating-current charging pile power supply capacity P2;
(10) pilot relay S2 is closed, asks to be the charging of described control guiding tester;
(11) selecting the minimum value of electric current corresponding to cable capacity P1, electric vehicle alternating-current charging pile output capacity P2 and Vehicular charger rated capacity P3 is charging current, starting load;
(12) judge whether described control guiding tester is in normal condition in charging process C;
(13) charging status information is sent to human-computer interaction module and external communication interface;
(14) judge whether described control guiding tester pwm signal dutycycle changes;
(15) redefine electric vehicle alternating-current charging pile power supply capacity P2, and set the load charging current;
(16) judge whether the charging of control guiding tester finishes;
(17) close load, recover the original state of described control guiding tester, i.e. idle condition;
(18) test process finishes.
12. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (1), described control guiding tester is connected with charge cable, the DC level of control steering signal terminal CP output 12V.
13. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that in the described step (2), the state that connects confirmation signal terminal CC by monitoring is determined charge cable capacity P1; The charge cable capacity represents with following IV formula:
In the formula: Va represents a certain level value of power module, and preferred value is 5V; Rc represents to characterize on the charging cable resistance of cable capacity, and 220 ohm and 680 ohm of two values are arranged; R1 represents the resistance in the tester, and preferred value is 2K ohm; V SampleExpression lead-out terminal magnitude of voltage 1.;
During Rc=680 Ω, charge cable capacity P1 is 16A; During Rc=220 Ω, charge cable capacity P1 is 32A; Va and R1 satisfy actual power loss and precision; V SampleBe no more than the measurement range of described controller, measurement range is between 0-3.3V.
14. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (3), be 5V at Va, during R1=2K Ω, be normal condition when recording lead-out terminal magnitude of voltage 1. and being 1.27V or 0.5V, the state that all the other voltages are corresponding all is abnormality;
If described charge cable capacity is normal, then carry out step (4); Otherwise, carry out step (13).
15. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that, in the described step (4), guides the output DC of the control steering signal terminal CP of tester when control and puts down at 11.4V<V INIn the time of in<12.6V standard error the scope, 2. and 3. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process A;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 11.4V or V INDuring 〉=12.6V, 2. and 3. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process A; V wherein INThe magnitude of voltage corresponding to high level of expression input voltage signal;
If described control guiding tester is in normal condition in charging process A, then carry out step (5); Otherwise, carry out step (13).
16. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that, in the described step (6), guides the output DC of the control steering signal terminal CP of tester when control and puts down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process B-1;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process B-1;
If described control guiding tester is in normal condition in charging process B-1, then carry out step (7); Otherwise, carry out step (13).
17. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (7), described electric vehicle alternating-current charging pile correlation parameter comprises that charge mode, user authenticate and the machine for punching the card expense.
18. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that, in the described step (8), guides the output DC of the control steering signal terminal CP of tester when control and puts down at 8.2V<V INIn the time of in<9.8V standard error the scope, 4. and 5. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process B-2;
Guide the output DC of the control steering signal terminal CP of tester puts down at V when control IN≤ 8.2V or V INDuring 〉=9.8V, 4. and 5. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process B-2;
If described control guiding tester is in normal condition in charging process B-2, then carry out step (7); Otherwise, carry out step (13).
19. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (9), described pwm signal dutycycle is to determine by " periodicity of certain timer in the controller " that measurement pwm signal high level and low level experience.
20. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that, in the described step (11), when one of following situation occured, described control guiding tester stopped loaded work piece:
A, electric vehicle alternating-current charging pile reach the charge condition that the user arranges;
B, control guiding tester disconnect S2 and stop charging process;
C, pwm signal interrupt;
D, become off-state with the normally closed switch S3 of the push button of connection cable plug interlock by closure, and keep more than the 300ms;
In e, the charging process, described control steering signal terminal CP becomes non-6V pwm signal, namely lead-out terminal 6., when 7. the high level voltage scope is between 5.2V-6.8V;
In f, the charging process, described electric vehicle alternating-current charging pile earth leakage protective device action causes load-side under-voltage;
When electric vehicle alternating-current charging pile is finished charging process or accidental interruption charging, guarantee that the level value of controlling the control steering signal terminal CP that guides tester is in 11.4V~12.6V standard permissible error scope; The actual voltage value of test programmable load guarantees that electric vehicle alternating-current charging pile has disconnected ac circuit.
21. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (12), when the output pwm signal high level of the control steering signal terminal CP of control guiding tester at 5.2V<V INIn the time of in<6.8V standard error the scope, 6. and 7. lead-out terminal is in normal condition, and namely described control guiding tester is in normal condition in charging process C;
When the high level of the output pwm signal of the control steering signal terminal CP of control guiding tester at V IN≤ 5.2V or V INDuring 〉=6.8V, 6. and 7. lead-out terminal is in abnormality, and namely described control guiding tester is in abnormality in charging process C;
If described control guiding tester is in normal condition in charging process C, then carry out step (14); Otherwise, return step (13) and carry out step (16).
22. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, in the described step (14), if described control guiding tester pwm signal dutycycle changes, then carry out step (15); Otherwise, return step (12).
23. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11, it is characterized in that, according to power supply capacity, charge cable capacity P1 and the Vehicular charger rated capacity P3 of electric vehicle alternating-current charging pile electric vehicle alternating-current charging pile power supply capacity P 2 is redefined.
24. the implementation method of electric vehicle alternating-current charging pile coupling arrangement control guiding tester as claimed in claim 11 is characterized in that, in the described step (16), if the charging of control guiding tester finishes, then carries out step (17); Otherwise, return step (12).
25. the implementation method such as each described electric vehicle alternating-current charging pile coupling arrangement control guiding tester among the claim 11-23, it is characterized in that, after entering charging process, described control guiding tester was monitored the connection status of charge cable with the cycle that is not more than 50ms, the signal of monitoring comprises and connects confirmation signal CC and control steering signal CP, when in case generation connects the abnormal signal that disconnects generation by charge cable, described control guiding tester cuts out the duty of programmable power supply, and the record detecting information;
After entering charging process, described control guiding tester was monitored the power supply capacity of electric vehicle alternating-current charging pile by the dutycycle of control steering signal CP with the cycle that is not more than 5s.
26. the implementation method such as each described electric vehicle alternating-current charging pile coupling arrangement control guiding tester in the claim 24, it is characterized in that, when electric vehicle alternating-current charging pile monitored following signal condition, electric vehicle alternating-current charging pile cut off ac circuit:
I, in charging process, the magnitude of voltage of electric automobile charging pile control steering signal is the state of 12V, 9V or other non-6VPWM signals, then electric automobile charging pile disconnects ac power supply circuit;
Ii, in charging process, electric automobile charging pile is by detecting connecting confirmation signal CC, as detect power supply interface and become disconnection by connecting fully, then electric automobile charging pile makes control steering signal output+12V DC level, and the disconnection ac power supply circuit.
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CN106443558B (en) * 2016-09-06 2019-03-08 武汉国测数据技术有限公司 A kind of mobile error criterion device and its detection method for charging pile error-detecting
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