CN105162192A - Electromobile alternating current charging device and charging control method thereof - Google Patents
Electromobile alternating current charging device and charging control method thereof Download PDFInfo
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- CN105162192A CN105162192A CN201510554208.2A CN201510554208A CN105162192A CN 105162192 A CN105162192 A CN 105162192A CN 201510554208 A CN201510554208 A CN 201510554208A CN 105162192 A CN105162192 A CN 105162192A
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Abstract
The invention discloses an electromobile alternating current charging device and a charging control method thereof. The charging device comprises a power supply loop state detection circuit, the connection state of a power supply interface and a power line is controlled according to a conduction state of a power supply loop, no electric shock risk exists, and the charging device is simple to operate. The charging device also comprises a guidance circuit detection point in an electromobile, a controller is used for judging whether the electromobile connected with the power supply interface is provided with a guidance circuit or not according to a voltage signal of the detection point, if yes, the connection state of the power supply interface and the power line is controlled according to the voltage signal of the detection point, if not, the power supply loop state is switched to detect the circuit, and the connection state of the power supply interface and the power line is controlled by detecting the conduction state of the power supply loop. According to the electromobile alternating current charging device and the charging control method thereof, the electromobile which is provided with or not provided with the guidance circuit can be compatible, various types of charging devices are unnecessarily arranged in a charging station, cost is saved, the charging device is high in application rate, the electromobile can be charged by arbitrary one of the charging devices, and a user is convenient to charge.
Description
Technical field
The present invention relates to charging electric vehicle technical field, particularly relate to a kind of electric vehicle alternating-current charging device and charge control method thereof.
Background technology
Along with the enhancing of environmental protection and energy saving consciousness, electric automobile, owing to taking vehicle power as power, can solve fuel-engined vehicle pollution emission environment, problems such as high energy consumption and progressively being favored.And the charging problems of the electric automobile problem that to be people pay special attention to, it is related to the universal of electric automobile and promotes.
Because the manufacturer of electric automobile is different, the guidance circuit of its indoor design is also different, as long as meet national Specification.So-called guidance circuit is used to detect the power supply interface of charging device and a kind of circuit of electric automobile connection status in real time, specify according in GB GB/T20234.2-2011, wherein a kind of guidance circuit of electric automobile inside as shown in Figure 1, as seen from Figure 1, due to the circuit that this kind of electric automobile inside does not have signal lines CP level to change, (holding wire CP is that charging device exports, the holding wire be connected with electric automobile), so charging device cannot judge the connection status of power supply interface and electric automobile.Thus, need to arrange a forceful electric power switch on the live wire L center line N of power supply interface connection, when charging electric vehicle, all need the operation of band forceful electric power, there is electric shock risk, operating personnel's personal safety is threatened.In addition, arranging forceful electric power switch also needs manually to operate forceful electric power switch, there is the problem of complicated operation.
Another guidance circuit of electric automobile inside as shown in Figure 2, as seen from Figure 2, the circuit that this kind of electric automobile inside has signal lines CP level to change, and determine charging opportunity according to holding wire CP level variable condition.When the power supply unit that the electric automobile without guidance circuit of Fig. 1 is connected to Fig. 2 charges, then because power supply unit test point 1 does not detect charging triggering signal, power switch K1, K2 can not be controlled close and charging cannot be realized, thus, only can redesign for the electric automobile of Fig. 1 the charging device matched now.Thus, without there being the electric automobile of guidance circuit cannot universal charging device in guidance circuit electric automobile and Fig. 2 in Fig. 1, charging station needs to arrange polytype charging device, not only floor space is large, and charging device service efficiency is low, cost is high, charging electric vehicle time also need to find the charging device matched, bother very much.
Summary of the invention
The invention provides a kind of electric vehicle alternating-current charging device, solving existing charging device does not have the electric automobile of signal lines CP level changing circuit to need always with forceful electric power or the problem needing to operate forceful electric power switch electric shock risk and complicated operation for inside.
Technical scheme provided by the invention is, a kind of electric vehicle alternating-current charging device, described AC charging device comprises power line L, N, be arranged on power line L, the second on-off switch K7 on N and with described power line L, the power supply interface that N connects, described AC charging device comprises controller, first on-off switch K6, L, N current supply circuit state detection circuit and DC power supply, the operating member of described first on-off switch K6 is between power line L and DC power supply, be positioned at power line N and L, between the input of N current supply circuit state detection circuit, described controller outputs control signals to the closed and disconnection that the first on-off switch K6 controls power line L and DC power supply, control power line N and L, closed and the disconnection of the input of N current supply circuit state detection circuit, described L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N and generates conducting state signal, and by described conducting state Signal transmissions to controller, described controller outputs control signals to the second on-off switch K7,
Controller output control signal controls the first on-off switch K6 and closes, and the second on-off switch K7 disconnects, and the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N also transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
Electric vehicle alternating-current charging device of the present invention comprises L, N current supply circuit state detection circuit, the power supply interface of charging device and the connection status of power line L and power line N is controlled by the conducting state detected between power line L and power line N, and be with forceful electric power to operate without the need to operating personnel, there is not contact risk, simple to operate.
Electric vehicle alternating-current charging device as above, described L, N current supply circuit state detection circuit comprises voltage comparator, the first input end of described voltage comparator is connected to the input of L, N current supply circuit state detection circuit by divider resistance, the second input of described voltage comparator is connected with reference voltage.
The invention allows for a kind of charge control method of electric vehicle alternating-current charging device, described charge control method is: when power supply interface is not connected with electric automobile, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If power supply interface is connected with electric automobile, then L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
Further, the invention allows for a kind of electric vehicle alternating-current charging device, solving the different electric automobile of existing guidance circuit cannot the technical problem of general same charging device.
Described AC charging device comprises electric automobile guided inside electric circuit inspection point, described test point is connected with the pwm signal output of described DC power supply or controller by resistance R1, described controller detects the voltage signal at described test point place, and described test point is electrically connected with the CP port of power supply interface;
When the voltage signal that described controller detects described test point place is the first voltage signal, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects the conducting state signal between power line L and power line N and transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
When the voltage signal that described controller detects described test point place is the second voltage signal, controller exports control signal, controls the first on-off switch K6 and disconnects;
When the voltage signal that described controller detects described test point place is tertiary voltage signal, controller exports control signal and controls the second on-off switch K7 and close.
Electric vehicle alternating-current charging device of the present invention goes for the electric automobile of various different guidance circuit, charging station is without the need to arranging polytype charging device, provide cost savings, charging device service efficiency is high, any one charging device all can charge to electric automobile, facilitates user to charge.
The invention allows for a kind of charge control method of electric vehicle alternating-current charging device, described control method is: when the voltage signal that described controller detects described test point place is the first voltage signal, the electric automobile of signal lines CP level changing circuit is had not to be connected with charging device, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If the conducting state that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7;
When the voltage signal that described controller detects described test point place is the second voltage signal, have the electric automobile of signal lines CP level changing circuit to be connected with charging device, controller exports control signal, controls the first on-off switch K6 and disconnects;
The voltage signal that described controller detects described test point place is tertiary voltage signal, and controller output control signal controls the second on-off switch K7 and closes.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is power supply unit and the connection status schematic diagram without guidance circuit electric automobile in background technology.
Fig. 2 is power supply unit and the connection status schematic diagram figure having guidance circuit electric automobile in background technology.
Fig. 3 is the theory diagram of the specific embodiment of the invention 1 charging device.
Fig. 4 is the theory diagram of the specific embodiment of the invention 2 charging device.
Fig. 5, Fig. 6 are the schematic diagram that the specific embodiment of the invention 2 charging device connects with electric automobile.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Specific embodiment 1
The present embodiment for for shown in the electric automobile guidance circuit Fig. 1 specified in GB GB/T20234.2-2011, custom-designed a kind of electric vehicle alternating-current charging device.
As shown in Figure 3, the present embodiment proposes a kind of electric vehicle alternating-current charging device, and described AC charging device comprises power line L, N for providing electric energy; The power supply interface connected with power line L, N; And the second on-off switch K7 be arranged on power line L, N; When the second on-off switch K7 closes, the delivery of electrical energy of power line L, N is to power supply interface, and power supply interface is charged, can give charging electric vehicle, and when the second on-off switch K7 disconnects, power supply interface is not charged.
The AC charging device of the present embodiment comprises controller, the first on-off switch K6, L, N current supply circuit state detection circuit and DC power supply.Wherein, controller controls the on off operating mode of the first on-off switch K6 and the second on-off switch K7, and the first on-off switch K6 and the second on-off switch K7 is interlock switch; L, N current supply circuit state detection circuit for detecting the conducting state between power line L and power line N, and by conducting state Signal transmissions to controller.
The operating member of the first on-off switch K6 between power line L and DC power supply, between the input of power line N and L, N current supply circuit state detection circuit.Controller outputs control signals to the closed and disconnection that the first on-off switch K6 controls power line L and DC power supply, the closed and disconnection of the input of control power line N and L, N current supply circuit state detection circuit.
L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N and generates conducting state signal, by conducting state Signal transmissions to controller.When L, N current supply circuit state detection circuit conducting state detected between power line L and power line N is conducting, illustrate that power supply interface connects with electric automobile, when L, N current supply circuit state detection circuit conducting state detected between power line L and power line N is not conducting, illustrate that power supply interface does not connect with electric automobile.When power supply interface connects with electric automobile, conducting state between power line L and power line N is conducting, controller outputs control signals to the second on-off switch K7, control it to close, when power supply interface does not connect with electric automobile, conducting state between power line L and power line N is not conducting, and controller outputs control signals to the second on-off switch K7, controls it and disconnects.
Preferably, L, N current supply circuit state detection circuit comprises voltage comparator, the first input end of voltage comparator is connected to the input of L, N current supply circuit state detection circuit by divider resistance R2, R3, the second input of voltage comparator is connected with reference voltage.When voltage higher than the second input of the voltage of first input end, voltage comparator exports high level (Continuity signal) to controller; When voltage lower than the second input of the voltage of first input end, voltage comparator output low level (not Continuity signal) is to controller.When the first on-off switch K6 closes, when power supply interface connects with electric automobile, the voltage of first input end is high level, and the voltage of first input end is higher than the voltage of the second input; When power supply interface does not connect with electric automobile, the voltage of first input end is low level.
Controller output control signal controls the first on-off switch K6 and closes, and the second on-off switch K7 disconnects, and the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N also transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
Based on the design of above-mentioned electric vehicle alternating-current charging device, the present embodiment also proposed a kind of charge control method, when power supply interface is not connected with electric automobile, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If power supply interface is connected with electric automobile, then L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
Specific embodiment 2
The present embodiment is for for the electric automobile guidance circuit (or arranging the electric automobile guidance circuit of divider resistance between other holding wires CP and earth connection PE) shown in the electric automobile guidance circuit shown in the Fig. 1 specified in GB GB/T20234.2-2011 and Fig. 2, custom-designed a kind of electric vehicle alternating-current charging device, can either be the charging electric vehicle shown in Fig. 1, can be again the charging electric vehicle shown in Fig. 2.
As Figure 4-Figure 6, AC charging device comprises the full content of specific embodiment 1, repeats no more herein.Meanwhile, AC charging device inside is also provided with electric automobile guided inside electric circuit inspection point 1, and test point 1 is by connecting with the pwm signal output of DC power supply or controller after resistance R1, on-off switch S1, and test point 1 is electrically connected with the CP port of power supply interface; Controller detects the voltage signal at test point 1 place.
Controller control S1 and DC power supply are connected, DC power supply is 12V, when the voltage signal that controller detects described test point 1 place is the first voltage signal (12V), the electric automobile of signal lines CP level changing circuit is had not to be connected with charging device, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects the conducting state signal between power line L and power line N and transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
When the voltage signal at controller detection test point 1 place is the second voltage signal (9V), have the electric automobile of signal lines CP level changing circuit to be connected with charging device, controller exports control signal, controls the first on-off switch K6 and disconnects;
When the voltage signal that controller detects described test point 1 place is tertiary voltage signal (peak value is the pulse signal of 6V), charging electric vehicle state is ready to, and controller exports control signal and controls the second on-off switch K7 and close, and starts to charging electric vehicle.
Based on the design of above-mentioned electric vehicle alternating-current charging device, the present embodiment also proposed a kind of charge control method of electric vehicle alternating-current charging device.
When the voltage signal that controller detects described test point place is the first voltage signal (12V), the electric automobile of signal lines CP level changing circuit is had not to be connected with charging device, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If the conducting state that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, as shown in Figure 6, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7;
Be connected with charging device when there being the electric automobile of signal lines CP level changing circuit, as shown in Figure 6, because the R3 of electric automobile accesses holding wire CP, the voltage signal that controller detects test point 1 place becomes the second voltage signal (9V), controller exports control signal, controls the first on-off switch K6 and disconnects;
After controller receives charging control command, control S1 switches to PWM end, electric automobile vehicle control device detects that test point 2 is for after peak value is the pulse signal of 9V, electric automobile vehicle control device exports control signal control S2 and closes, the voltage signal that controller detects test point 1 place is tertiary voltage signal (peak value is the pulse signal of 6V), controller output control signal controls the second on-off switch K7 and closes, and electric automobile starts charging.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. an electric vehicle alternating-current charging device, described AC charging device comprises power line L, N, be arranged on power line L, the second on-off switch K7 on N and with described power line L, the power supply interface that N connects, it is characterized in that, described AC charging device comprises controller, first on-off switch K6, L, N current supply circuit state detection circuit and DC power supply, the operating member of described first on-off switch K6 is between power line L and DC power supply, be positioned at power line N and L, between the input of N current supply circuit state detection circuit, described controller outputs control signals to the closed and disconnection that the first on-off switch K6 controls power line L and DC power supply, control power line N and L, closed and the disconnection of the input of N current supply circuit state detection circuit, described L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N and generates conducting state signal, and by described conducting state Signal transmissions to controller, described controller outputs control signals to the second on-off switch K7,
Controller output control signal controls the first on-off switch K6 and closes, and the second on-off switch K7 disconnects, and the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N also transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
2. electric vehicle alternating-current charging device according to claim 1, it is characterized in that: described L, N current supply circuit state detection circuit comprises voltage comparator, the first input end of described voltage comparator is connected to the input of L, N current supply circuit state detection circuit by divider resistance, the second input of described voltage comparator is connected with reference voltage.
3. electric vehicle alternating-current charging device according to claim 1 and 2, it is characterized in that: described AC charging device comprises electric automobile guided inside electric circuit inspection point, described test point is connected with the pwm signal output of described DC power supply or controller by resistance R1, described controller detects the voltage signal at described test point place, and described test point is electrically connected with the CP port of power supply interface;
When the voltage signal that described controller detects described test point place is the first voltage signal, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects the conducting state signal between power line L and power line N and transfers to controller; If the conducting state signal that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
When the voltage signal that described controller detects described test point place is the second voltage signal, controller exports control signal, controls the first on-off switch K6 and disconnects;
When the voltage signal that described controller detects described test point place is tertiary voltage signal, controller exports control signal and controls the second on-off switch K7 and close.
4. the charge control method of an electric vehicle alternating-current charging device according to claim 1 and 2, it is characterized in that, described charge control method is: when power supply interface is not connected with electric automobile, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If power supply interface is connected with electric automobile, then L, N current supply circuit state detection circuit detects the conducting state between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7.
5. the charge control method of an electric vehicle alternating-current charging device according to claim 3, it is characterized in that, described control method is: when the voltage signal that described controller detects described test point place is the first voltage signal, the electric automobile of signal lines CP level changing circuit is had not to be connected with charging device, controller output control signal controls the first on-off switch K6 and closes, second on-off switch K7 disconnects, and L, N current supply circuit state detection circuit detects conducting state between power line L and power line N and by conducting state Signal transmissions to controller; If the conducting state that L, N current supply circuit state detection circuit detects between power line L and power line N is conducting, then controller exports control signal, and after controlling the first on-off switch K6 disconnection, then it is closed to control the second on-off switch K7;
When the voltage signal that described controller detects described test point place is the second voltage signal, have the electric automobile of signal lines CP level changing circuit to be connected with charging device, controller exports control signal, controls the first on-off switch K6 and disconnects;
The voltage signal that described controller detects described test point place is tertiary voltage signal, and controller output control signal controls the second on-off switch K7 and closes.
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| CN201510554208.2A CN105162192B (en) | 2015-09-02 | 2015-09-02 | A kind of electric vehicle alternating-current charging device and its charge control method |
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| CN201510554208.2A CN105162192B (en) | 2015-09-02 | 2015-09-02 | A kind of electric vehicle alternating-current charging device and its charge control method |
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| CN105162192B (en) | 2019-01-15 |
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Address after: 266104 Shandong Province, Qingdao city Laoshan District Songling Road No. 336 Co-patentee after: Telai New Energy Co.,Ltd. Patentee after: QINGDAO TGOOD ELECTRIC Co.,Ltd. Address before: 266104 Shandong Province, Qingdao city Laoshan District Songling Road No. 336 Co-patentee before: QINGDAO TELD NEW ENERGY Co.,Ltd. Patentee before: QINGDAO TGOOD ELECTRIC Co.,Ltd. |
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Address after: 266104 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 336 Patentee after: QINGDAO TGOOD ELECTRIC Co.,Ltd. Patentee after: Special call New Energy Co.,Ltd. Address before: 266104 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 336 Patentee before: QINGDAO TGOOD ELECTRIC Co.,Ltd. Patentee before: Telai New Energy Co.,Ltd. |
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Effective date of registration: 20210325 Address after: 266061 room 808, 8 / F, No. 336, Songling Road, Laoshan District, Qingdao City, Shandong Province Patentee after: Special call New Energy Co.,Ltd. Address before: 266104 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 336 Patentee before: QINGDAO TGOOD ELECTRIC Co.,Ltd. Patentee before: Special call New Energy Co.,Ltd. |
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