CN103389432B - Electric automobile DC charging motor charging control process proving installation and its implementation - Google Patents

Electric automobile DC charging motor charging control process proving installation and its implementation Download PDF

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Publication number
CN103389432B
CN103389432B CN201310340930.7A CN201310340930A CN103389432B CN 103389432 B CN103389432 B CN 103389432B CN 201310340930 A CN201310340930 A CN 201310340930A CN 103389432 B CN103389432 B CN 103389432B
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terminal
charging
charging motor
signal
control
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CN103389432A (en
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张萱
李志明
桑林
叶健诚
李旭玲
马彦华
董晨
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State Grid Corp of China SGCC
Shandong Electric Power Research Institute
NARI Group Corp
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State Grid Corp of China SGCC
Shandong Electric Power Research Institute
Nanjing Nari Group Corp
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Abstract

The present invention relates to a kind of electric automobile DC charging motor charging control process proving installation and its implementation, proving installation comprises collecting unit, control guidance circuit, control module, battery management analogue unit, process status analogue unit, man-machine interaction unit, collecting unit is for gathering DC charging motor plug output voltage/electric current, control steering signal, signal of communication and auxiliary electrical source value, and data are real-time transmitted to man-machine interaction unit, control guidance circuit is used for realizing electric automobile and controls guidance function to DC charging motor, control module is for controlling charged state and communication process, realize the switching to the various state of charging process.Does is proving installation of the present invention according to IEC? 61851-23 annex system B and GB/T? the requirement of 20234.3-2011 is tested the correctness of charging stage control procedure and timing variations, reliability.Apparatus and method of the present invention, more press close to the actual working state of DC charging motor, and test result reflects the performance of DC charging motor more comprehensively, exactly.

Description

Electric automobile DC charging motor charging control process proving installation and its implementation
Technical field
The present invention relates to procedural test field, particularly relate to a kind of electric automobile DC charging motor charging control process proving installation and its implementation.
Background technology
Promoting New Energy Industry is the general strategic choice that the increasingly serious energy and environmental crisis are tackled in countries in the world.Electric automobile utilizes electricity to replace oil, can realize the life of " zero-emission " low-carbon (LC), is the important means solving current energy scarcity and economic development contradiction.The traffic and transport field that is applied as of electric automobile utilizes clean energy resource, reduces fossil energy and relies on, and reduces carbon emission amount and provides wide prospect.
Change moving forward steadily of electric infrastructure construction along with China's electric automobile fills, the development for electric automobile provides powerful support.The important step of energy supply when electrically-charging equipment runs as electric automobile, carries the substantial responsibility ensureing electric automobile safe charging process, realize electric automobile and electrical network interaction.At present, both at home and abroad still not to the systematic approach of charging control process test, normally coordinate to have come relevant test by oscillograph, high accuracy number table meter, limit by environment simultaneously, test wiring inconvenience, testing procedure is complicated, needs test man to adjust state of a control manually, this is not by high for the stability and reliability causing test, and testing process has some setbacks.In order to further specification charging equipment of electric automobile charging process, the correctness of checking charged state and timing variations, the present invention proposes a kind of proving installation for testing electric automobile DC charging motor charging control process and its implementation, the mode of testing scheme customization is adopted to carry out various charged state test to DC charging motor, to realize comprehensive assessment and analysis DC charging motor charging control process and each charging stage sequential correctness and reliability, effective detection means and instrument 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 automobile DC charging motor charging control process proving installation and its implementation, scheme provided by the invention presses close to the actual working state of DC charging motor, test result comprehensively, accurately, realize comprehensive assessment and analysis DC charging motor charging control process and each charging stage sequential correctness and reliability, effective detection means and instrument can be provided for professional testing agency or electric automobile producer.
The object of the invention is to adopt following technical proposals to realize:
Electric automobile DC charging motor charging control process proving installation, comprising:
Collecting unit: gather the output voltage/electric current of DC charging motor plug, control steering signal, signal of communication and auxiliary electrical source value, the terminal that the input terminal of described collecting unit is corresponding to DC charging motor connector plug connects, the terminal connection that lead-out terminal is corresponding to man-machine interaction unit;
Control guidance circuit: for realizing the control guidance function that electric automobile charges to DC charging motor, the described control guidance circuit terminal corresponding to DC charging motor connector plug connects, and output terminal is connected with control module;
Control module: for controlling described proving installation charged state and communication process, realize the switching to the various state of charging process, described control module comprises Interface Terminal and driving circuit, described Interface Terminal is connected with DC charging motor connector plug and the output terminal controlling guidance circuit respectively, the pin that described driving circuit and control module have IO function is connected, for driving relay K cC1, relay K cC2, relay K 1, relay K 2;
Man-machine interaction unit: for realizing the information interaction between user and proving installation, described man-machine interaction unit is connected with control module by parallel bus;
Battery management analogue unit: for realizing the function of electric automobile side battery management system, described battery management analogue unit is connected with man-machine interaction unit by parallel bus;
Process status analogue unit: for state various in analog charge process, described process status analogue unit is connected with man-machine interaction unit by parallel bus;
Bus driver: comprise bus driver 1 and bus driver 2, for realizing that described proving installation universal serial bus mates with load level, electrical isolation and protection, described bus driver is connected with control module by universal serial bus, is connected respectively by RS485 bus with load and external communication interface;
Relay K 1, relay K 2: the state of charging to load for realizing DC charging motor switches; Described relay K 1 one end is connected with the DC output terminal DC+ of DC charging motor connector plug, and the other end inputs DC+ with the direct current of load and is connected; Described relay K 2 one end is connected with the DC output terminal DC-of DC charging motor connector plug, and the other end inputs DC-with the direct current of load and is connected;
Relay K cC1, relay K cC2: switch for the connection status realizing controlling between DC charging motor connector and electric automobile to guide; Described relay K cC1one end is connected with the control steering signal terminal CC1 of DC charging motor connector plug, and the other end is connected with the control steering signal terminal CC1 controlling guidance circuit; Described relay K cC2one end is connected with the control steering signal terminal CC2 of DC charging motor connector plug, and the other end is connected with the control steering signal terminal CC2 controlling guidance circuit;
Power module: for proving installation provides power supply, in described power module incoming transport 220V civil power.
The input terminal of aforesaid collecting unit comprises DC input terminal DC+, DC input terminal DC-, signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC1, controls steering signal terminal CC2, accessory power supply terminal A+, accessory power supply terminal A-, and lead-out terminal is collection of simulant signal lead-out terminal;
Described DC input terminal DC+ is connected with the DC output terminal DC+ of DC charging motor connector plug;
Described DC input terminal DC-is connected with the DC output terminal DC-of DC charging motor connector plug;
Described signal of communication terminal S+ is connected with the signal of communication terminal S+ of DC charging motor connector plug;
Described signal of communication terminal S-is connected with the signal of communication terminal S-of DC charging motor connector plug;
Described control steering signal terminal CC1 is connected with the control steering signal terminal CC1 of DC charging motor connector plug;
Described control steering signal terminal CC2 is connected with the control steering signal terminal CC2 of DC charging motor connector plug;
Described accessory power supply terminal A+ is connected with the accessory power supply terminal A+ of DC charging motor connector plug;
Described accessory power supply terminal A-is connected with the accessory power supply terminal A-of DC charging motor connector plug;
Described collection of simulant signal lead-out terminal and man-machine interaction unit have collection of simulant signal input terminal and are connected.
Aforementioned control guidance circuit passes through relay K cC1be connected with the control steering signal terminal CC1 of DC charging motor connector plug, relay K cC1the connection status of both control; Described control guidance circuit passes through relay K cC2be connected with the control steering signal terminal CC2 of DC charging motor connector plug, relay K cC2the connection status of both control.The input terminal of aforesaid control module comprises signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC2.
Described signal of communication terminal S+ is connected with the signal of communication terminal S+ of DC charging motor connector plug;
Described signal of communication terminal S-is connected with the signal of communication terminal S-of DC charging motor connector plug;
Described control steering signal terminal CC2 is connected with the output terminal controlling guidance circuit.
Aforesaid driving circuit comprises the diode, amplifying circuit, optocoupler and the reactor that connect successively, described optocoupler ground connection.
Aforesaid man-machine interaction unit is touch LCD screen.
The charged state of aforesaid proving installation comprises normal condition and abnormality.
The implementation method of electric automobile DC charging motor charging control process proving installation, comprises the steps:
(1) by proving installation incoming transport 220V civil power, now proving installation is in init state, and relay K 1, relay K 2 are in off-state, relay K cC1, relay K cC2be in off-state, if the DC output terminal of the DC charging motor connector plug that collecting unit records, signal of communication terminal, accessory power supply terminal, the equal no signal of control steering signal terminal export, proving installation is initialized as normal condition, then carry out step (2); If there is voltage signal to export, then proving installation is initialized as abnormality, then proceed to step (11);
(2) proving installation is connected with DC charging motor connector plug, press DC charging motor connector plug locking switch, switch S is made to remain open state, if the DC level that the control steering signal terminal CC1 of the DC charging motor connector plug that collecting unit records exports is changed to 6V by 12V, it is normal condition that control steering signal terminal CC2 no-output then controls steering signal, then carry out step (3); Otherwise be abnormality, then proceed to step (11);
(3) closed DC charging motor connector plug locking switch, now proving installation is in control linkage state, if the control steering signal terminal CC1 of the DC charging motor connector plug that collecting unit records exports the DC level of 4V, it is normal condition that the DC level of control steering signal terminal CC2 output 6V then controls steering signal, then carry out step (4); Otherwise be abnormality, then proceed to step (11);
(4) by man-machine interaction unit, electric automobile and battery parameter are set in battery management analogue unit, judge that whether the handshake phase of described proving installation and DC charging motor is normal, if receive the charging handshake phase message of DC charging motor, charge and shake hands as normal condition, then carry out step (5); Otherwise be abnormality, then proceed to and carry out step (11);
(5) battery charging controling parameters is set in battery management analogue unit by man-machine interaction unit, judge that whether the configuration phase of described proving installation and DC charging motor is normal, if receive the charge parameter configuration phase message that DC charging motor sends, charge parameter is configured to normal condition, then carry out step (6); Otherwise be abnormality, then proceed to and carry out step (11);
(6) DC charging motor is asked to be the charging of described proving installation, starting load;
(7) select to carry out normal charging condition test, judge whether DC charging motor exports correct; If correct, proceed to step (9), otherwise proceed to step (11);
(8) select to carry out abnormal charged state test, judge DC charging motor exports whether be in normal condition; If the normal condition of being in, then judge whether to continue test; Otherwise, proceed to step (11); If continue test, then process status analogue unit be set to normal condition and ask charging, reentering the test of abnormal charged state; If do not continue test, then proceed to step (11);
(9) judge whether proving installation charges normal end, if proving installation terminates to load charging, then proving installation sends BMS statistics to DC charging motor, and receive the charging set statistics of DC charging motor transmission, if collecting unit records the DC output terminal of DC charging motor connector plug, accessory power supply terminal, the equal no-output of signal of communication terminal, control the DC level that steering signal terminal CC1 exports 4V, the DC level controlling steering signal terminal CC2 output 6V is then normal condition, then carry out step (10), otherwise proceed to step (11),
(10) DC charging motor connector plug locking switch S is unlocked, judge that whether the ending phase of proving installation and DC charging motor is normal, if the control steering signal terminal CC1 that collecting unit records DC charging motor connector plug exports the DC level being changed to 12V by 6V, the DC level that control steering signal terminal CC2 output is changed to 12V by 6V is then normal condition, otherwise is abnormality;
(11) charging status information is sent to man-machine interaction unit and external communication interface;
(12) close load, recover the original state of described proving installation;
(13) test process terminates.
In aforesaid step (6), following situation occurs for the moment, described proving installation stops loaded work piece:
A, electric automobile DC charging motor reach set end-of-charge condition;
B, control steering signal CC1 and control steering signal CC2 interrupt;
C, signal of communication S+ and signal of communication S-interrupt;
D, described proving installation send charging and cease and desist order.
In aforesaid step (7), judge whether DC charging motor exports correct, DC charging motor output voltage and/or output current is changed specifically by battery management analogue unit, set new output voltage and/or new output current are within the scope of normal variation, relatively the output voltage of DC charging motor connector plug that records of collecting unit and/or output current whether with described new output voltage and/or new output current whether identical, if identical, then judge that DC charging motor exports correct.
In aforesaid step (8), judge DC charging motor exports whether be in normal condition, specifically by process status analogue unit, failure condition is set, comprise signal of communication short circuit, earth fault, direct current output short-circuit, earth fault, and control the switching of control module executing state, if the VD that collecting unit records DC charging motor connector plug is down to below 60V in 1s, output current is down to below 5A and is then judged that DC charging motor output is in normal condition in 2s.
Aforementioned enter charging process after, described collecting unit is monitored with the output signal of cycle to DC charging motor plug being not more than 50ms, the signal of monitoring comprises VD and electric current, control steering signal CC1 and controls steering signal CC2, signal of communication S+ and signal of communication S-and auxiliary electrical source value A+ and auxiliary electrical source value A-, once occur to disconnect by attachment unit interface the abnormal signal produced, described proving installation cuts out the duty of programmable power supply, and records detecting information.
Aforementioned when proving installation monitors following signal condition, the direct current that proving installation cuts off DC charging motor exports, and disconnects relay K 1 and relay K 2:
I, in charging process, electric automobile DC charging motor controls the DC level state that DC level that steering signal CC1 is non-4V and/or CC2 are non-6V;
Ii, in charging process, VD/output current that collecting unit records is greater than the maximum rated voltage/current set by battery.
Compared with the prior art, the beneficial effect that the present invention reaches is:
Electric automobile DC charging motor charging control process proving installation provided by the invention and implementation method, fill up the blank of domestic electric automobile DC charging motor charging control process test macro technology, can be tested the correctness of each charging stage timing variations of electric automobile and stability by this proving installation, and point out testing result in the mode of close friend to user, it is directly perceived, convenient to have more.Itself and other equipment or Automated library system is made by communication port and reserved external interface, the different test point of flexible combination, form comprehensive performance detecting platform, to assess correctness and the stability of DC charging motor and charging electric vehicle process, application the present invention can be the safety applications of electric automobile DC charging motor, provides measuring technology means and technical support.
Accompanying drawing explanation
Fig. 1 is electric automobile DC charging motor charging control process proving installation structural representation provided by the invention;
Fig. 2 is control guidance circuit schematic diagram of the present invention;
Fig. 3 is relay drive circuit schematic diagram of the present invention;
Fig. 4 is bus driver structural representation of the present invention;
Fig. 5 is the process flow diagram of the implementation method of electric automobile DC charging motor charging process proving installation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, proving installation comprises for electric automobile DC charging motor charging control process proving installation composition of the present invention and test environment:
Collecting unit: gather the output voltage/electric current of DC charging motor plug, control steering signal, signal of communication and auxiliary electrical source value, collecting unit comprises Interface Terminal; Interface Terminal comprises input terminal and lead-out terminal;
Input terminal is connected with the terminal of DC charging motor connector plug; Input terminal comprises DC input terminal DC+, DC input terminal DC-, signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC1, controls steering signal terminal CC2, accessory power supply terminal A+, accessory power supply terminal A-; DC input terminal DC+ is connected with the DC output terminal DC+ of DC charging motor connector plug; DC input terminal DC-is connected with the DC output terminal DC-of DC charging motor connector plug; Signal of communication terminal S+ is connected with the signal of communication terminal S+ of DC charging motor connector plug; Signal of communication terminal S-is connected with the signal of communication terminal S-of DC charging motor connector plug; Control steering signal terminal CC1 to be connected with the control steering signal terminal CC1 of DC charging motor connector plug; Control steering signal terminal CC2 to be connected with the control steering signal terminal CC2 of DC charging motor connector plug; Accessory power supply terminal A+ is connected with the accessory power supply terminal A+ of DC charging motor connector plug; Accessory power supply terminal A-is connected with the accessory power supply terminal A-of DC charging motor connector plug;
Lead-out terminal comprises collection of simulant signal lead-out terminal, and collection of simulant signal lead-out terminal and described man-machine interaction unit have collection of simulant signal input terminal and be connected.
Control guidance circuit: for realizing the control guidance function that electric automobile charges to DC charging motor, as shown in Figure 2, in figure, U1 is the upper pull-up voltage of DC charging motor requirement, U2 is the upper pull-up voltage of electric automobile requirement, R4 and R5 is equivalent resistance, PE is earth terminal, controls guidance circuit respectively by relay K cC1be connected with the control steering signal terminal CC1 of DC charging motor connector plug, pass through relay K cC2be connected with the control steering signal terminal CC2 of DC charging motor connector plug, relay K cC1and relay K cC2the connection status of both control;
Export the output for controlling steering signal terminal CC2.
Control module: for controlling described proving installation charged state and communication process, control module comprises Interface Terminal and driving circuit; Described Interface Terminal comprises input terminal;
Input terminal comprises signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC2, and signal of communication terminal S+ is connected with the signal of communication terminal S+ of DC charging motor connector plug; Signal of communication terminal S-is connected with the signal of communication terminal S-of DC charging motor connector plug; Control steering signal terminal CC2 to be connected with the output controlling guidance circuit.
Driving circuit comprises the identical K of circuit structure cC1driving circuit, K cC2driving circuit, K1 driving circuit and K2 driving circuit; Driving circuit includes the diode, amplifying circuit, optocoupler and the reactor that connect successively, wherein optocoupler ground connection, and the driving circuit of relay as shown in Figure 3.
Man-machine interaction unit: for the information interaction between user and described proving installation, man-machine interaction unit is touch LCD screen, is connected with control module by parallel bus.
Battery management analogue unit: for realizing the function of electric automobile side battery management system, be connected with man-machine interaction unit by parallel bus.
Process status analogue unit: for state various in analog charge process, be connected with described man-machine interaction unit by parallel bus.
Bus driver: for realizing that proving installation universal serial bus mates with load level, electrical isolation and protection.Bus driver comprises bus driver 1 and bus driver 2; Bus driver 1 is connected with control module by universal serial bus with bus driver 2; Bus driver 1 is connected with external unit by RS485 bus with bus driver 2, and external unit comprises load and external communication interface.Bus driver 1 is identical with bus driver 2 structure, as shown in Figure 4, includes three optocoupler branch road, RS485 driver and receivers in parallel and two voltage stabilizing diodes; Wherein three optocoupler branch roads in parallel are connected with RS485 driver and receiver respectively; One of them voltage stabilizing diode is connected with RS485-A terminal; Another voltage stabilizing diode is connected with RS485-B terminal.
Relay K 1, K2: the state of charging to load for realizing DC charging motor switches.Relay K 1 one end is connected with the DC output terminal DC+ of DC charging motor connector plug, and the other end inputs DC+ with the direct current of load and is connected, composition relay K 1 branch road; Relay K 2 one end is connected with the DC output terminal DC-of DC charging motor connector plug, and the other end inputs DC-with the direct current of load and is connected, composition relay K 2 branch road.Relay K 1 is directly connected with the IO port of control module with relay K 2 control port.
Relay K cC1, K cC2: switch for the connection status realizing controlling between DC charging motor connector and electric automobile to guide.Relay K cC1one end is connected with the control steering signal terminal CC1 of DC charging motor connector plug, and the other end is connected with the control steering signal terminal CC1 controlling guidance circuit, composition relay K cC1branch road; Relay K cC2the control steering signal terminal CC2 of one end and DC charging motor connector plug, the other end is connected with the control steering signal terminal CC2 controlling guidance circuit, composition relay K cC2branch road.Relay K cC1 andrelay K cC2control port is directly connected with the IO port of control module.
Power module: for proving installation provides power supply; In described power module incoming transport 220V civil power.
As shown in Figure 5, the method comprises the steps: the implementation method flow process of electric automobile DC charging motor charging control process proving installation provided by the invention
(1) by proving installation incoming transport 220V civil power, this thing proving installation is in init state;
Relay K 1, relay K 2 are in off-state, relay K cC1, relay K cC2be in off-state, collecting unit records the DC output terminal of DC charging motor connector plug, signal of communication terminal, accessory power supply terminal, be normal condition when controlling that the equal no signal of steering signal terminal exports, all the other voltage corresponding statess are abnormality,
If proving installation is initialized as normal condition, then carry out step (2); Otherwise, carry out step (11).
(2) proving installation is connected with DC charging motor connector plug, press DC charging motor connector plug locking switch, switch S is made to remain open state, the DC level that the control steering signal terminal CC1 that collecting unit records DC charging motor connector plug exports is changed to 6V by 12V, controlling steering signal terminal CC2 no-output is normal condition, all the other voltage corresponding statess are abnormality
If control steering signal is normal condition, then carry out step (3); Otherwise, carry out step (11).
(3) closed DC charging motor connector plug locking switch, now proving installation is in control linkage state, collecting unit records the DC level of the control steering signal terminal CC1 output 4V of DC charging motor connector plug, the DC level controlling steering signal terminal CC2 output 6V is normal condition, all the other voltage corresponding statess are abnormality
If control steering signal is normal condition, then carry out step (4); Otherwise, carry out step (11).
(4) electric automobile and battery parameter are set, the basic parameter of electric automobile and battery is set in battery management analogue unit by man-machine interaction unit, and send BMS and vehicle recognition message to DC charging motor, recording the charging handshake phase message that proving installation receives DC charging motor is normal condition, otherwise be abnormality
If charging is shaken hands as normal condition, then carry out step (5); Otherwise, carry out step (11).
(5) battery charging controling parameters is set, battery charging is set in battery management analogue unit by man-machine interaction unit and controls correlation parameter, judge that whether the configuration phase of proving installation and DC charging motor is normal; If receive the charge parameter configuration phase message that DC charging motor sends, charge parameter is configured to normal condition, otherwise is abnormality,
If charge parameter is configured to normal condition, then carry out step (6); Otherwise, carry out step (11).
(6) DC charging motor is asked to be the charging of described proving installation, starting load; Following situation occurs for the moment, proving installation stops loaded work piece:
A, electric automobile DC charging motor reach set end-of-charge condition;
B, control steering signal CC1 and control steering signal CC2 interrupt;
C, signal of communication S+ and signal of communication S-interrupt;
D, described proving installation send charging and cease and desist order.
(7) select to carry out normal charging condition test, judge whether DC charging motor exports correct; Concrete determination methods is, changes DC charging motor output voltage and/or output current by battery management analogue unit, and set new output voltage and/or new output current are within the scope of normal variation; Relatively the output voltage that records of collecting unit and/or output current whether with the output voltage of new settings and/or new output current whether identical,
If the value compared is identical, then judges that DC charging motor exports correct, then carry out step (9); Otherwise, carry out step (11).
(8) select to carry out abnormal charged state test, judge whether DC charging motor exports correct; Concrete determination methods is, arranges failure condition by process status analogue unit, comprises signal of communication short circuit, earth fault, direct current output short-circuit, earth fault, and controls the switching of described control module executing state; If the VD that collecting unit records DC charging motor connector plug is down to below 60V in 1s, output current is down to below 5A for normal condition in 2s; Other situations of change are abnormality,
If normal condition, judge whether to continue test; Otherwise, carry out step (11),
If continue test, process status analogue unit be set to normal condition and ask charging, reentering the test of abnormal charged state; If do not continue test, carry out step (11).
(9) judge whether proving installation charges normal end, if proving installation terminates to load charging, then proving installation sends BMS statistics to DC charging motor, and receive the charging set statistics of DC charging motor transmission, collecting unit record the DC output terminal of DC charging motor connector plug, accessory power supply terminal, the equal no-output of signal of communication terminal, control the output 4V of steering signal terminal CC1 DC level, to control the DC level that steering signal terminal CC2 exports 6V be normal condition, all the other voltage corresponding statess are abnormality
If normal condition, then carry out step (10); Otherwise, carry out step (11).
(10) DC charging motor connector plug locking switch S is unlocked, judge that whether the ending phase of proving installation and DC charging motor is normal, the control steering signal terminal CC1 output DC level that collecting unit records DC charging motor connector plug is changed to 12V by 6V, the DC level that control steering signal terminal CC2 output is changed to 12V by 6V is normal condition, and all the other voltage corresponding statess are abnormality.
(11) charging status information is sent to man-machine interaction unit and external communication interface;
(12) close load, recover the original state of described proving installation;
(13) test process terminates.
In this method, after entering charging process, collecting unit is monitored with the output signal of cycle to DC charging motor plug being not more than 50ms, the signal of monitoring comprises VD and electric current, control steering signal CC1 and CC2, signal of communication S+ and S-and auxiliary electrical source value A+ and A-, once occur to disconnect by attachment unit interface the abnormal signal produced, proving installation cuts out the duty of programmable power supply, and records detecting information;
When proving installation monitors following signal condition, the direct current that proving installation cuts off DC charging motor exports, and disconnects relay K 1 and relay K 2:
I, in charging process, electric automobile DC charging motor controls the DC level state that DC level that steering signal CC1 is non-4V and/or CC2 are non-6V;
Ii, in charging process, VD/output current that collecting unit records is greater than the maximum rated voltage/current set by battery.
The state that the present invention realizes whole charging process by collecting unit, control module, battery management analogue unit, process status analogue unit switches, data acquisition.After electric automobile DC charging motor and proving installation set up physical connection by charge cable, process status analogue unit realizes the setting of various charging stage state, and the switching action of all normal conditions and abnormality is performed by control module, in charging process, battery management analogue unit and DC charging motor carry out analogue communication, and all signals in test process are all by collecting unit real time record.The present invention can provide effective detection, the means assessing electric automobile DC charging motor charging control process and steering signal sequential correctness and reliability and instrument for professional testing agency or electric automobile producer.
Finally should be noted that: 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 to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (11)

1. electric automobile DC charging motor charging control process proving installation, is characterized in that, comprising:
Collecting unit: gather the output voltage/electric current of DC charging motor plug, control steering signal, signal of communication and auxiliary electrical source value, the terminal that the input terminal of described collecting unit is corresponding to DC charging motor connector plug connects, the terminal connection that lead-out terminal is corresponding to man-machine interaction unit; The input terminal of described collecting unit comprises DC input terminal DC+, DC input terminal DC-, signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC1, controls steering signal terminal CC2, accessory power supply terminal A+, accessory power supply terminal A-, and lead-out terminal is collection of simulant signal lead-out terminal;
Described DC input terminal DC+ is connected with the DC output terminal DC+ of DC charging motor connector plug;
Described DC input terminal DC-is connected with the DC output terminal DC-of DC charging motor connector plug;
Described signal of communication terminal S+ is connected with the signal of communication terminal S+ of DC charging motor connector plug;
Described signal of communication terminal S-is connected with the signal of communication terminal S-of DC charging motor connector plug;
Described control steering signal terminal CC1 is connected with the control steering signal terminal CC1 of DC charging motor connector plug;
Described control steering signal terminal CC2 is connected with the control steering signal terminal CC2 of DC charging motor connector plug;
Described accessory power supply terminal A+ is connected with the accessory power supply terminal A+ of DC charging motor connector plug;
Described accessory power supply terminal A-is connected with the accessory power supply terminal A-of DC charging motor connector plug;
Described collection of simulant signal lead-out terminal is connected with the collection of simulant signal input terminal of man-machine interaction unit;
Control guidance circuit: for realizing the control guidance function that electric automobile charges to DC charging motor, the described control guidance circuit terminal corresponding to DC charging motor connector plug connects, and output terminal is connected with control module;
Control module: for controlling described proving installation charged state and communication process, realize the switching to the various state of charging process, described control module comprises Interface Terminal and driving circuit, corresponding to the DC charging motor connector plug respectively terminal of described Interface Terminal and the output terminal controlling guidance circuit connect, the pin that described driving circuit and control module have IO function is connected, for driving relay K cC1, relay K cC2, relay K 1 and relay K 2; The input terminal of described control module comprises signal of communication terminal S+, signal of communication terminal S-, controls steering signal terminal CC2,
The signal of communication terminal S+ of described control module is connected with the signal of communication terminal S+ of DC charging motor connector plug;
The signal of communication terminal S-of described control module is connected with the signal of communication terminal S-of DC charging motor connector plug;
The control steering signal terminal CC2 of described control module is connected with the output terminal controlling guidance circuit;
Man-machine interaction unit: for realizing the information interaction between user and proving installation, described man-machine interaction unit is connected with control module by parallel bus;
Battery management analogue unit: for realizing the function of electric automobile side battery management system, described battery management analogue unit is connected with man-machine interaction unit by parallel bus;
Process status analogue unit: for state various in analog charge process, described process status analogue unit is connected with man-machine interaction unit by parallel bus;
Bus driver: comprise bus driver 1 and bus driver 2, for realizing that described proving installation universal serial bus mates with load level, electrical isolation and protection, described bus driver is connected with control module by universal serial bus, is connected respectively by RS485 bus with load and external communication interface;
Relay K 1, relay K 2: the state of charging to load for realizing DC charging motor switches; Described relay K 1 one end is connected with the DC output terminal DC+ of DC charging motor connector plug, and the other end inputs DC+ with the direct current of load and is connected; Described relay K 2 one end is connected with the DC output terminal DC-of DC charging motor connector plug, and the other end inputs DC-with the direct current of load and is connected;
Relay K cC1, relay K cC2: switch for the connection status realizing controlling between DC charging motor connector and electric automobile to guide; Described relay K cC1one end is connected with the control steering signal terminal CC1 of DC charging motor connector plug, and the other end is connected with the control steering signal terminal CC1 controlling guidance circuit; Described relay K cC2one end is connected with the control steering signal terminal CC2 of DC charging motor connector plug, and the other end is connected with the control steering signal terminal CC2 controlling guidance circuit;
Power module: for proving installation provides power supply, in described power module incoming transport 220V civil power.
2. electric automobile DC charging motor charging control process proving installation according to claim 1, it is characterized in that, described control guidance circuit passes through relay K cC1be connected with the control steering signal terminal CC1 of DC charging motor connector plug, relay K cC1the connection status of both control; Described control guidance circuit passes through relay K cC2be connected with the control steering signal terminal CC2 of DC charging motor connector plug, relay K cC2the connection status of both control.
3. electric automobile DC charging motor charging control process proving installation according to claim 1, it is characterized in that, described driving circuit comprises the diode, amplifying circuit, optocoupler and the reactor that connect successively, described optocoupler ground connection.
4. electric automobile DC charging motor charging control process proving installation according to claim 1, it is characterized in that, described man-machine interaction unit is touch LCD screen.
5. electric automobile DC charging motor charging control process proving installation according to claim 1, it is characterized in that, the charged state of described proving installation comprises normal condition and abnormality.
6. utilize the electric automobile DC charging motor charging control process proving installation in claim 1 to 5 described in any one to carry out the implementation method of charging process test, it is characterized in that, comprise the following steps:
(1) by proving installation incoming transport 220V civil power, now proving installation is in init state, and relay K 1, relay K 2 are in off-state, relay K cC1, relay K cC2be in off-state, if the DC output terminal of the DC charging motor connector plug that collecting unit records, signal of communication terminal, accessory power supply terminal, the equal no signal of control steering signal terminal export, proving installation is initialized as normal condition, then carry out step (2); If there is voltage signal to export, then proving installation is initialized as abnormality, then proceed to step (11);
(2) proving installation is connected with DC charging motor connector plug, press switch S, switch S is made to remain open state, if the DC level that the control steering signal terminal CC1 of the DC charging motor connector plug that collecting unit records exports is changed to 6V by 12V, it is normal condition that control steering signal terminal CC2 no-output then controls steering signal, then carry out step (3); Otherwise be abnormality, then proceed to step (11);
(3) Closing Switch S, now proving installation is in control linkage state, if the control steering signal terminal CC1 of the DC charging motor connector plug that collecting unit records exports the DC level of 4V, it is normal condition that the DC level of control steering signal terminal CC2 output 6V then controls steering signal, then carry out step (4); Otherwise be abnormality, then proceed to step (11);
(4) by man-machine interaction unit, electric automobile and battery parameter are set in battery management analogue unit, judge that whether the handshake phase of described proving installation and DC charging motor is normal, if receive the charging handshake phase message of DC charging motor, charge and shake hands as normal condition, then carry out step (5); Otherwise be abnormality, then proceed to and carry out step (11);
(5) battery charging controling parameters is set in battery management analogue unit by man-machine interaction unit, judge that whether the configuration phase of described proving installation and DC charging motor is normal, if receive the charge parameter configuration phase message that DC charging motor sends, charge parameter is configured to normal condition, then carry out step (6); Otherwise be abnormality, then proceed to and carry out step (11);
(6) DC charging motor is asked to be the charging of described proving installation, starting load; If select process status analogue unit to be set to normal condition, proceed to step (7), if select process status analogue unit to be set to abnormality, proceed to step (8);
(7) select to carry out normal charging condition test, judge whether DC charging motor exports correct; If correct, proceed to step (9), otherwise proceed to step (11);
(8) select to carry out abnormal charged state test, judge DC charging motor exports whether be in normal condition; If the normal condition of being in, then judge whether to continue test; Otherwise, proceed to step (11); If continue test, then process status analogue unit be set to normal condition and ask charging, proceeding to step (8); If do not continue test, then proceed to step (11);
(9) judge whether proving installation charges normal end, if proving installation terminates to load charging, then proving installation sends BMS statistics to DC charging motor, and receive the charging set statistics of DC charging motor transmission, if collecting unit records the DC output terminal of DC charging motor connector plug, accessory power supply terminal, the equal no-output of signal of communication terminal, control the DC level that steering signal terminal CC1 exports 4V, the DC level controlling steering signal terminal CC2 output 6V is then normal condition, then carry out step (10), otherwise proceed to step (11),
(10) unlock switch S, judge that whether the ending phase of proving installation and DC charging motor is normal, if the control steering signal terminal CC1 that collecting unit records DC charging motor connector plug exports the DC level being changed to 12V by 6V, the DC level that control steering signal terminal CC2 output is changed to 12V by 6V is then normal condition, otherwise is abnormality;
(11) charging status information is sent to man-machine interaction unit and external communication interface;
(12) close load, recover the original state of described proving installation;
(13) test process terminates.
7. implementation method according to claim 6, is characterized in that, in described step (6), following situation occurs for the moment, described proving installation stops loaded work piece:
A, electric automobile DC charging motor reach set end-of-charge condition;
B, control steering signal CC1 and control steering signal CC2 interrupt;
C, signal of communication S+ and signal of communication S-interrupt;
D, described proving installation send charging and cease and desist order.
8. implementation method according to claim 6, it is characterized in that, in described step (7), judge whether DC charging motor exports correct, DC charging motor output voltage and/or output current is changed specifically by battery management analogue unit, set new output voltage and/or new output current are within the scope of normal variation, relatively the output voltage of DC charging motor connector plug that records of collecting unit and/or output current whether with described new output voltage and/or new output current whether identical, if identical, then judge that DC charging motor exports correct.
9. implementation method according to claim 6, it is characterized in that, in described step (8), judge DC charging motor exports whether be in normal condition, specifically by process status analogue unit, failure condition is set, comprise signal of communication short circuit, earth fault, direct current output short-circuit, earth fault, and control the switching of control module executing state, if the VD that collecting unit records DC charging motor connector plug is down to below 60V in 1s, output current is down to below 5A in 2s, then judge that DC charging motor exports and be in normal condition.
10. implementation method according to claim 6, it is characterized in that, after entering charging process, described collecting unit is monitored with the output signal of cycle to DC charging motor plug being not more than 50ms, the signal of monitoring comprises VD and electric current, control steering signal CC1 and controls steering signal CC2, signal of communication S+ and signal of communication S-and auxiliary electrical source value A+ and auxiliary electrical source value A-, once occur to disconnect by attachment unit interface the abnormal signal produced, described proving installation cuts out the duty of programmable power supply, and records detecting information.
11., according to the implementation method described in claim 10, is characterized in that, when proving installation monitors following signal condition, the direct current that proving installation cuts off DC charging motor exports, and disconnects relay K 1 and relay K 2:
I, in charging process, electric automobile DC charging motor controls the DC level state that DC level that steering signal CC1 is non-4V and/or CC2 are non-6V;
Ii, in charging process, VD/output current that collecting unit records is greater than the maximum rated voltage/current set by battery.
CN201310340930.7A 2013-08-06 2013-08-06 Electric automobile DC charging motor charging control process proving installation and its implementation Active CN103389432B (en)

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