阅读说明：本技术 一种基于停车场的电动汽车储充管理系统及方法 (Electric automobile storage and charging management system and method based on parking lot ) 是由 孔舰 王明辉 陈盛旺 于 2019-12-03 设计创作，主要内容包括：本发明提供了一种基于停车场的电动汽车储充管理系统及方法,包括若干前排充电桩和若干直流转换机；前排充电桩上配置有直流充电枪和交流充电枪；前排充电桩内配置有交流充电模块和取电模块；取电模块的输入端与380V电缆电连接,取电模块具有第一输出端和第二输出端,其中第一输出端输出220V交流电压,第二输出端输出380V交流电压；交流充电模块的输入端电连接于取电模块的第一输出端；前排充电桩的后侧设置有第一连接头,直流转换机的前后两侧对应地设置有与第一连接头适配的第二连接头；直流转换机的内部安装有用于驱动第二连接头前后伸缩的伸缩驱动机构。本发明具有成本低的优势。(The invention provides an electric vehicle storage and charging management system and method based on a parking lot, which comprises a plurality of front row charging piles and a plurality of direct current converters; a direct current charging gun and an alternating current charging gun are arranged on the front row of charging piles; an alternating current charging module and a power taking module are arranged in the front row charging pile; the input end of the power taking module is electrically connected with the 380V cable, and the power taking module is provided with a first output end and a second output end, wherein the first output end outputs 220V alternating voltage, and the second output end outputs 380V alternating voltage; the input end of the alternating current charging module is electrically connected to the first output end of the power taking module; a first connector is arranged on the rear side of the front row of charging piles, and second connectors matched with the first connectors are correspondingly arranged on the front side and the rear side of the direct current converter; and a telescopic driving mechanism for driving the second connector to stretch back and forth is arranged in the direct current converter. The invention has the advantage of low cost.)

1. An electric vehicle storage and charging management system based on a parking lot is characterized by comprising a plurality of front row charging piles (1) and a plurality of direct current converters (2); the relation between the number N1 of the direct current converters (2) and the number N2 of the front row charging piles (1) is as follows: n1 is not more than N2/2-2; the front row charging piles (1) are divided into two rows, a track is arranged between the two rows of front row charging piles (1), the direct current conversion machine (2) is sequentially arranged on the track, and the bottom of the direct current conversion machine is provided with an electric roller assembly (26) matched with the track; a plurality of position marking components (4) corresponding to the front row charging piles (1) are arranged on the track, and a position sensor (5) for detecting the position marking components (4) is installed at the bottom of the direct current conversion machine (2); the front row charging pile (1) is provided with a direct current charging gun and an alternating current charging gun; a 380V cable is laid along the track, and a charging management module, an alternating current charging module and a power taking module are arranged in the front row charging pile (1); the input end of the electricity taking module is electrically connected with a 380V cable, the electricity taking module is provided with a first output end and a second output end, the first output end outputs 220V alternating voltage, and the second output end outputs 380V alternating voltage; the input end of the alternating current charging module is electrically connected to the first output end of the power taking module;

a first connecting head (11) is arranged on the rear side of the front row charging pile (1), and second connecting heads (21) matched with the first connecting head (11) are correspondingly arranged on the front side and the rear side of the direct current converter (2); a telescopic driving mechanism (24) for driving the second connector (21) to stretch back and forth is arranged in the direct current converter (2); an input line (211) and an output line (212) are arranged inside the first connector (11) and the second connector (21), and when the first connector (11) is in butt joint with the second connector (21), the corresponding input line (211) is communicated with the output line (212); the charging management module is provided with a first controllable switch and a second controllable switch, the alternating current charging gun is electrically connected with the alternating current charging module through the first controllable switch, and the direct current charging gun is electrically connected with an output line (212) in the first connecting head (11) through the second controllable switch;

a control module, an electricity storage module and a direct current charging module (25) are arranged in the direct current converter (2); the electric roller assembly (26) is electrically connected with the second control module; the output end of the direct current charging module (25) is connected with an output line (212) in the second connector (21), and the input end of the direct current charging module is electrically connected with an input line (211) in the second connector (21); an input line (211) of the first connecting head (11) is electrically connected with a second output end of the power taking module, and an output line (212) is electrically connected with the direct current charging gun;

the charging management module and the control module are both provided with wireless communication modules for information interaction.

2. The parking lot based electric vehicle storage and charging management system as claimed in claim 1, wherein a first sensor (214) for detecting whether the second connector (21) is connected with the first connector (11) is mounted on the second connector; the first sensor (214) is electrically connected to the control module.

3. The electric vehicle storage and charging management system based on the parking lot as claimed in claim 2, wherein the two second connectors (21) are electrically connected with the direct current charging module (25) through a first switch, and the first switch is electrically connected with the control module.

4. The parking lot-based electric vehicle storage and charging management system as claimed in claim 3, wherein a third connector (22) and a fourth connector (23) which are mutually matched are respectively installed at the left side and the right side of the direct current converter (2), and the structures of the third connector (22) and the fourth connector (23) are respectively the same as those of the first connector (11) and the second connector (21); the third connectors (22) are respectively and electrically connected with the two second connectors (21) through second change-over switches; the fourth connectors (23) are respectively and electrically connected with the two second connectors (21) through third change-over switches; the third connector (22) and the fourth connector (23) are electrically connected with the direct current charging module (25) through a fourth selector switch; the second change-over switch, the third change-over switch and the fourth change-over switch are all electrically connected with the control module;

a second sensor for detecting whether the third connector (22) is in butt joint with a fourth connector (23) is arranged on the third connector (22); the second sensor is electrically connected with the control module.

5. An electric vehicle storage and charging management method comprising the parking lot-based electric vehicle storage and charging management system of claim 4, wherein the method comprises the following steps:

the direct current conversion machine (2) reports the current position and the use state to each front row charging pile (1);

the front row charging pile (1) enables an alternating current charging mode or a direct current charging mode according to the selection of a user, wherein when the alternating current charging mode is enabled: starting an alternating current charging module to supply power to an alternating current charging gun so as to carry out alternating current charging; when the dc charging mode is enabled: the front row charging pile (1) inquires whether an idle direct current converter (2) exists or not; if the idle direct current converter (2) does not exist, prompting a user; if the idle direct current converter (2) exists, inquiring whether the position of the idle direct current converter (2) exists in the direct current converter; if the direct current converter (2) in use does not exist, sending a calling instruction to an idle direct current converter (2) closest to the direct current converter; after receiving the calling instruction, the corresponding direct current conversion machine (2) moves to the position of the front row charging pile (1); after the direct current conversion machine (2) finishes moving, controlling the corresponding second connector (21) to extend out and finish butt joint with the first connector (11); after the butt joint is completed, the direct current conversion machine (2) sends a butt joint completion instruction to the corresponding front row charging pile (1); after the front row charging pile (1) receives the docking completion instruction, a direct current charging module (25) is started to supply power to a direct current charging gun for direct current charging; if the in-use direct current converter (2) exists, inquiring whether the idle direct current converter (2) is in the adjacent position, if so, sending a switching instruction to the in-use direct current converter (2) and the idle direct current converter (2), controlling the corresponding third connecting head (22) and the corresponding fourth connecting head (23) to extend out by the two direct current converters (2) according to the auxiliary instruction, completing butt joint, and starting the corresponding second change switch or the corresponding third change switch and the corresponding third controllable switch or the corresponding fourth controllable switch after the butt joint is completed; then, the two direct current converters (2) send transfer completion instructions to the corresponding front row charging piles (1); after the front row charging pile (1) receives the transfer completion instruction, a direct current charging module (25) in the called direct current conversion machine (2) is started to supply power to a direct current charging gun for direct current charging; and if the position is not adjacent, canceling the call and prompting the user.

6. The electric vehicle charging management method according to claim 5, wherein if there is no dc converter (2) in use, the method further comprises:

when the front row charging pile (1) sends a calling instruction, whether the number of the direct current conversion machines (2) in the use state between the front row charging pile and the called direct current conversion machine (2) is larger than 1 is inquired; if the number of the call requests is larger than 1, stopping calling and prompting a user; if the number of the direct current switches is equal to 1, sending an interrupt instruction to the direct current switch in the use state; after receiving the interruption instruction, the direct current switch in the use state immediately performs an interruption separation program with the corresponding front row charging pile (1), and simultaneously the corresponding front row charging pile (1) enters a charging interruption program;

after the direct current switch in the use state finishes the disengaging program, the direct current switch moves to the position of the front row charging pile (1) which sends the calling instruction, and the direct current switch is in butt joint with the front row charging pile (1); and then, the called direct current converter (2) is in butt joint with the front row charging pile (1) in the charging interruption state, and after the butt joint is completed, the front row charging pile (1) in the charging interruption state recovers the charging program.

7. The electric vehicle storage and charging management method according to claim 6, further comprising:

when two front row charging piles (1) at the same position start an alternating current charging mode, if a direct current converter (2) exists at the position where the front row charging piles are located, position adjusting instructions are sent to all direct current converters (2) according to the positions and the use states of other direct current converters (2); the direct current converter (2) receiving the position adjusting instruction moves to a proper position.

Technical Field

The invention belongs to the technical field of new energy, and particularly relates to an electric vehicle storage and charging management system and method based on a parking lot.

Background

The charging pile has the function similar to an oiling machine in a gas station, can be fixed on the ground or on the wall, is installed in public buildings (public buildings, markets, public parking lots and the like) and residential district parking lots or charging stations, and can charge various types of electric vehicles according to different voltage grades. The input end of the charging pile is directly connected with an alternating current power grid, and the output end of the charging pile is provided with a charging plug for charging the electric automobile. Fill electric pile and generally provide two kinds of charging methods of conventional charging and quick charge, people can use specific charging card to swipe the card and use on the human-computer interaction operation interface that fills electric pile and provide, carry out operations such as corresponding charging method, charging time, expense data printing, fill electric pile display screen and can show data such as the charge volume, expense, charging time.

The slow charging generally adopts alternating current charging, and the fast charging generally adopts direct current charging. At present, charging piles on the market are basically alternating current charging piles, and because the price is low, only thousands of money is needed generally. The number of the direct current charging piles is small, and the direct current charging piles are generally about one hundred thousand due to the fact that high-power devices are adopted. Therefore, for a parking lot, if all parking stalls are provided with the direct current charging pile, the manufacturing cost is very high.

Disclosure of Invention

In view of the above, a first object of the present invention is to provide a parking lot-based electric vehicle storage and charging management system, which has the advantage of low cost.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an electric vehicle storage and charging management system based on a parking lot comprises a plurality of front row charging piles and a plurality of direct current converters; the number N of the direct current converters₁And the number N of the front row charging piles₂The relationship of (1) is: n is a radical of₁≤N₂2-2; the direct current conversion machine is sequentially arranged on the track, and the bottom of the direct current conversion machine is provided with an electric roller assembly matched with the track; a plurality of position marking components corresponding to the front row charging piles are arranged on the track, and a position sensor for detecting the position marking components is arranged at the bottom of the direct current conversion machine; front row charging pileA direct current charging gun and an alternating current charging gun are arranged on the charging device; a 380V cable is laid along the track, and a charging management module, an alternating current charging module and a power taking module are arranged in the front row charging pile; the input end of the electricity taking module is electrically connected with a 380V cable, the electricity taking module is provided with a first output end and a second output end, the first output end outputs 220V alternating voltage, and the second output end outputs 380V alternating voltage; the input end of the alternating current charging module is electrically connected to the first output end of the power taking module;

a first connecting head is arranged on the rear side of the front row of charging piles, and second connecting heads matched with the first connecting head are correspondingly arranged on the front side and the rear side of the direct current converter; a telescopic driving mechanism for driving the second connector to stretch back and forth is arranged in the direct current converter; the first connector and the second connector are internally provided with input lines and output lines, and when the first connector is in butt joint with the second connector, the corresponding input lines are communicated with the output lines; the charging management module is provided with a first controllable switch and a second controllable switch, the alternating current charging gun is electrically connected with the alternating current charging module through the first controllable switch, and the direct current charging gun is electrically connected with an output circuit in the first connecting head through the second controllable switch;

a control module, an electricity storage module and a direct current charging module are arranged in the direct current converter; the electric roller assembly is electrically connected with the second control module; the output end of the direct current charging module is connected with an output line in the second connector, and the input end of the direct current charging module is electrically connected with an input line in the second connector; an input circuit of the first connecting head is electrically connected with a second output end of the power taking module, and an output circuit of the first connecting head is electrically connected with the direct current charging gun;

the charging management module and the control module are both provided with wireless communication modules for information interaction.

Preferably, a first sensor for detecting whether the second connector is in butt joint with the first connector is mounted on the second connector; the first sensor is electrically connected with the control module.

Preferably, the two second connectors are electrically connected with the direct current charging module through a first switch, and the first switch is electrically connected with the control module.

Preferably, the left side and the right side of the dc converter are respectively provided with a third connector and a fourth connector which are mutually matched, and the structures of the third connector and the fourth connector are respectively the same as the first connector and the second connector; the third connector is electrically connected with the two second connectors through a second selector switch respectively; the fourth connector is electrically connected with the two second connectors through a third selector switch respectively; the third connector and the fourth connector are electrically connected with the direct current charging module through a fourth selector switch; the second change-over switch, the third change-over switch and the fourth change-over switch are all electrically connected with the control module;

the third connector is provided with a second sensor for detecting whether the third connector is in butt joint with the fourth connector; the second sensor is electrically connected with the control module.

The first purpose of the invention is to provide a storage and charging management method for an electric automobile, which has the advantage of low cost.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an electric vehicle storage and charging management method comprises the electric vehicle storage and charging management system based on the parking lot, and the method comprises the following steps:

the direct current converter reports the current position and the use state to each front row charging pile;

the front row charging pile enables an alternating current charging mode or a direct current charging mode according to the selection of a user, wherein when the alternating current charging mode is enabled: starting an alternating current charging module to supply power to an alternating current charging gun so as to carry out alternating current charging; when the dc charging mode is enabled: the front row charging pile inquires whether an idle direct current converter exists or not; if no idle direct current converter exists, prompting a user; if an idle direct current converter exists, inquiring whether the position of the idle direct current converter has the direct current converter in use; if the direct current converter in use does not exist, sending a calling instruction to an idle direct current converter closest to the direct current converter; after receiving the calling instruction, the corresponding direct current conversion machine moves to the position of the front row charging pile; after the direct current converter finishes moving, controlling the corresponding second connector to extend out and finish butt joint with the first connector; after the butt joint is completed, the direct current conversion machine sends a butt joint completion instruction to the corresponding front row charging pile; after the front row of charging piles receive the docking completion instruction, starting a direct current charging module to supply power to a direct current charging gun so as to carry out direct current charging; if the direct current converter in use exists, inquiring whether the idle direct current converter is in the adjacent position, if so, sending a switching instruction to the direct current converter in use and the idle direct current converter, controlling the corresponding third connector and fourth connector to extend out by the two direct current converters according to the auxiliary instruction, completing butt joint, and starting the corresponding second change-over switch or third change-over switch and third controllable switch or fourth controllable switch to start after the butt joint is completed; then, the two direct current converters send transfer completion instructions to the corresponding front row charging piles; after the front row charging pile receives the transfer completion instruction, starting a direct current charging module in the called direct current converter to supply power to a direct current charging gun for direct current charging; and if the position is not adjacent, canceling the call and prompting the user.

Preferably, if there is no dc converter in use, the method further includes:

when the front row charging pile sends a calling instruction, whether the number of the direct current conversion machines in the use state between the front row charging pile and the called direct current conversion machine is larger than 1 is inquired; if the number of the call requests is larger than 1, stopping calling and prompting a user; if the number of the direct current switches is equal to 1, sending an interrupt instruction to the direct current switch in the use state; after receiving the interruption instruction, the direct current switch in the use state immediately performs an interruption separation program with the corresponding front row charging pile, and simultaneously the corresponding front row charging pile enters a charging interruption program;

after the direct current switch in the use state finishes the disengaging program, the direct current switch moves to the position of the front row charging pile which sends the calling instruction, and the direct current switch is in butt joint with the front row charging pile; and then, the called direct current converter is in butt joint with the front row charging pile in the charging interruption state, and after the butt joint is completed, the front row charging pile in the charging interruption state recovers the charging program.

Preferably, the method further comprises the following steps:

when the front row charging pile starts an alternating current charging mode, if a direct current converter exists at the position where the front row charging pile is located, position adjusting instructions are sent to all direct current converters according to the positions and the use states of other direct current converters; and the direct current converter receiving the position adjusting instruction moves to a proper position.

The technical effects of the invention are mainly reflected in the following aspects: 1. by utilizing the butt joint and switching technology, the number of direct current charging piles is reduced, and the cost is reduced; 2. and a better calling strategy is adopted, so that the utilization of the direct current converter is more reasonable.

Drawings

FIG. 1 is a schematic layout diagram of an electric vehicle storage and charging management system in an embodiment;

FIG. 2 is a schematic structural diagram of an embodiment of a DC converter;

FIG. 3 is an electrical block diagram of a front row charging post and a DC converter in an embodiment;

FIG. 4 is an electrical block diagram of a DC converter according to an embodiment;

fig. 5 is a schematic distribution diagram of the first to fourth connectors in the embodiment.

Reference numerals: 1. front row charging piles; 11. a first connector; 2. a DC converter; 21. a second connector; 211. an input line; 212. an output line; 213. a contact; 214. a first sensor; 22. a third connector; 23. a fourth connector; 24. a telescopic driving mechanism; 25. a DC charging module; 26. an electric roller assembly; 241. a connecting rod; 4. a position marking member; 5. a position sensor.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

Referring to fig. 1 and 2, the embodiment provides an electric vehicle storage and charging management system based on a parking lot, including a plurality of front row charging piles 1 and a plurality of dc converters 2, where the relationship between the number N1 of the dc converters 2 and the number N2 of the front row charging piles 1 is: n1 is less than or equal to N2/2-2. In specific implementation, the number of N2 is more than 5. The front row charging piles 1 are divided into two rows, a track is arranged between the two rows of the front row charging piles 1, the direct current conversion machine 2 is sequentially arranged on the track, and the bottom of the direct current conversion machine is provided with an electric roller assembly 26 matched with the track.

A plurality of position marking components 4 corresponding to the front row charging piles 1 are arranged on the track, and a position sensor 5 for detecting the position marking components 4 is arranged at the bottom of the direct current converter 2; as an example, the position sensor 5 may employ an RFID identifier, and the position marker part 4 may employ an RFID tag. The dc converter 2 can detect the position mark member 4 by the position sensor 5, and acquire current position information.

Referring to fig. 1 to 5, a direct current charging gun and an alternating current charging gun are arranged on a front row charging pile 1; a 380V cable is laid along the track, and a charging management module, an alternating current charging module and a power taking module are arranged in the front row charging pile 1; the charging management module is configured with a wireless communication module.

The input end of the power taking module is electrically connected with the 380V cable, and the power taking module is provided with a first output end and a second output end, wherein the first output end outputs 220V alternating voltage, and the second output end outputs 380V alternating voltage; the input end of the alternating current charging module is electrically connected to the first output end of the power taking module. Specifically, as the first output end, 220V alternating voltage can be obtained by taking only a single phase of 380V alternating current.

A control module, an electricity storage module and a direct current charging module 25 are arranged in the direct current converter 2; the position sensor 5 and the electric roller assembly 26 are electrically connected with the second control module. The control module is provided with a wireless communication module so as to be capable of communicating with the front row charging pile 1. The wireless communication module can adopt Bluetooth, wifi, zigbee and the like. The dc charging module 25 includes an electrical module necessary for dc charging, and the detailed structure thereof is not described in this embodiment since it belongs to the prior art.

A first connecting head 11 is arranged at the rear side of the front row charging pile 1, and second connecting heads 21 matched with the first connecting head 11 are correspondingly arranged at the front side and the rear side of the direct current converter 2; the two second connectors 21 are electrically connected with the dc charging module 25 through a first switch, and the first switch is electrically connected with the control module. The first switch has two lines, and when one of the second connectors 21 needs to be in butt joint with the first connector 11, the corresponding line in the first switch is opened, that is, the corresponding second connector 21 can be communicated with the dc charging module 25.

Meanwhile, a third connector 22 and a fourth connector 23 which are mutually matched are respectively arranged on the left side and the right side of the direct current converter 2, and the structures of the third connector 22 and the fourth connector 23 are respectively the same as those of the first connector 11 and the second connector 21; the third connectors 22 are electrically connected with the two second connectors 21 through second switches respectively; the fourth connectors 23 are electrically connected to the two second connectors 21 through a third switch. The second change-over switch, the third change-over switch and the third controllable switch are all electrically connected with the control module. The second switch has two lines, and when the third connector 22 needs to be connected with one of the second connectors 21, the second switch is controlled to switch to the corresponding line; similarly, the third switch has two lines, and when the fourth connector 23 needs to be connected to one of the second connectors 21, the third switch is controlled to switch to the corresponding line.

Specifically, the first connector 11, the second connector 21, the third connector 22 and the fourth connector 23 are each provided with an input line 211 and an output line 212 inside. Referring to fig. 2, the ends of the input line 211 and the output line are provided with contacts 213 for plugging and conducting electricity, taking the second connector 21 as an example. When the first connector 11 is connected with the second connector 21, the corresponding input line 211 is communicated with the output line 212; likewise, when third connector 22 is mated with fourth connector 23, the corresponding input line 211 and output line 212 are also communicated.

A telescopic driving mechanism 24 for driving the second connector 21, the third connector 22 and the fourth connector 23 to stretch back and forth is arranged in the direct current converter 2; specifically, taking the second connector 21 as an example, referring to fig. 2 and 4, the telescopic driving mechanism 24 may employ an electric push rod, and an end portion thereof is connected to the second connector 21 through a connecting rod 241, so as to directly drive the second connector 21 to extend and retract.

In addition, the charging management module is configured with a first controllable switch and a second controllable switch, the ac charging gun is electrically connected to the ac charging module through the first controllable switch, and the dc charging gun is electrically connected to the output line 212 in the first connection terminal 11 through the second controllable switch. When the alternating current charging is needed, the first controllable switch is turned on, and when the direct current charging is needed, the second controllable switch is turned on.

The output end of the dc charging module 25 is connected to the output line 212 in the second connector 21, and the input end is electrically connected to the input line 211 in the second connector 21; the input line 211 of the first connector 11 is electrically connected to the second output terminal of the power-taking module, and the output line 212 is electrically connected to the dc charging gun through the second controllable switch. In the same connection manner, the third connector 22 and the fourth connector 23 are electrically connected to the dc charging module 25 through a fourth switch, the fourth switch has two lines, and when the third connector 22 or the fourth connector 23 needs to be electrically connected to the dc charging module 25, the corresponding line in the fourth switch is turned on.

The second connector 21 is provided with a first sensor 214 for detecting whether the second connector is in butt joint with the first connector 11; the first sensor 214 is electrically connected to the control module; a second sensor for detecting whether the third connector 22 is in butt joint with the fourth connector 23 is arranged on the third connector 22; the second sensor is electrically connected with the control module. The first sensor 214 and the second sensor are both proximity switches, infrared sensors, and the like.

The electricity storage module mainly comprises a lithium battery and a charge and discharge management circuit, wherein the charge and discharge management circuit obtains electricity through a 380V alternating current line and charges the lithium battery after voltage conversion. When the dc converter 2 is in the idle state, power is supplied from the lithium battery.