CN114906000A - Control device for charging system - Google Patents

Abstract

The control device of the charging system of the present invention includes: a data receiving port configured to receive a detection signal; wherein the detection signal includes a position detection signal between the first part and the second part of the charging connection part; a processor is configured In order to connect with the data receiving port, receive the signal from the data receiving port, judge whether the contact state of the first part and the second part is normal based on the position detection signal, and generate a connection confirmation execution instruction under the condition that the judgment state is normal; and, execute The device is arranged on the connection confirmation line between the connection confirmation end of the charging pile and the connection part, and is set to receive the connection confirmation execution instruction, and conduct the connection between the connection confirmation end of the charging pile and the connection part according to the connection confirmation execution instruction The connection confirmation line is connected, so that the connection confirmation line circuit between the charging pile and the electric vehicle is normal, and the electric vehicle can be charged only when the connection confirmation line circuit is confirmed to be normal.

Description

Control device for charging system

technical field

The invention belongs to the technical field of charging control, and relates to a control device of a charging system.

Background technique

At present, with the improvement of people's living standards and the continuous enhancement of energy saving and environmental protection awareness, electric equipment is also accepted by more and more users. However, there are still many problems to be solved in the charging of equipment, such as the convenience of charging and the safety of charging, which are always several important issues that need to be solved in the promotion process of charging equipment.

SUMMARY OF THE INVENTION

The present invention provides a control device for a charging system, which enables reliable charging control to be realized by controlling the on-off of a connection confirmation line between an electric vehicle and a charging pile.

A control device for a charging system of the present invention, in the charging system, the charging end of the charging pile is electrically connected with the charging end of the electric vehicle through the charging connecting part, the charging connecting part is a connecting device, and the first part of the connecting device is electrically connected connected to the charging end of the charging pile, the second part of the connecting device is electrically connected to the charging end of the electric vehicle, the first part and the second part are in contact to realize the connection between the charging end of the charging pile and the charging end of the electric vehicle, The connection confirmation end of the charging pile is connected with the connection confirmation end of the electric vehicle via the connection part; the control device is set to control the connection confirmation line between the connection confirmation end of the charging pile and the connection part; the control device includes: a data receiving port , is set to receive the detection signal; wherein, the detection signal includes the position detection signal between the first part and the second part; the processor is set to be connected with the data receiving port, receives the signal from the data receiving port, based on the position detection The signal judges whether the contact state of the first part and the second part is normal, and generates a connection confirmation execution instruction under the condition that the judgment state is normal; The confirmation line is set to receive the connection confirmation execution instruction, and conduct the connection confirmation line between the connection confirmation end of the charging pile and the connection component according to the connection confirmation execution instruction, so that the connection confirmation line between the charging pile and the electric vehicle is looped It is normal and the electric vehicle can be charged only when it is confirmed that the connection confirmation line circuit is normal.

Further, before charging starts, the connection confirmation execution instruction includes a delay execution instruction; the actuator is set to delay a time according to the connection confirmation execution instruction to turn on the connection confirmation line between the connection confirmation end of the charging pile and the connection part, so that the charging is performed. The connection confirmation line circuit between the pile and the electric vehicle is normal, and the electric vehicle can be charged only when the connection confirmation line circuit is confirmed to be normal.

Further, the data receiving port is arranged to also receive at least one of a temperature signal and a fault signal of the first component and/or the second component; the processor is arranged to receive the signal from the data receiving port, and based on the position The detection signal judges whether the contact state of the first part and the second part is normal, and judges whether the temperature state or the fault state is normal based on at least one of the temperature signal and the fault signal of the first part and/or the second part. Normally, the connection confirmation execution command is generated.

Further, the connecting component is a connection device, and the connection device is a gun-plug type connection device, and the gun-plug type connection device includes a plug-in grab and a socket matched with the plug-in grab; the data receiving port is set to also receive a pressure detection signal. ; Wherein, the pressure detection signal is the signal generated when the plug gun and the socket of the electric vehicle are inserted into position; the processor is set to receive the signal from the data receiving port, and judge the first part and the second part based on the position detection signal. Whether the contact state is normal or not, based on the pressure detection signal, the plug-in state of the socket of the electric vehicle is judged, and the connection confirmation execution command is generated when the judged states are all normal.

In another control device of the charging system of the present invention, in the charging system, the charging end of the charging pile is electrically connected with the charging end of the electric vehicle through the charging connecting part, and the charging connecting part is a connecting device, and the first part of the connecting device is It is electrically connected to the charging end of the charging pile, the second part of the connecting device is electrically connected to the charging end of the electric vehicle, and the first part and the second part are in contact to realize the connection between the charging end of the charging pile and the charging end of the electric vehicle. connection, the connection confirmation end of the charging pile is electrically connected to one end of the connection part, and the other end of the connection part is connected with the connection confirmation end of the electric vehicle; the control device is set to control the connection confirmation end of the electric vehicle and the connection confirmation between the connection parts The on-off of the line; the control device includes: a data receiving port, which is set to receive a detection signal; wherein, the detection signal includes a position detection signal between the first part and the second part; the processor is set to be connected to the data receiving port , receive the signal from the data receiving port, judge whether the contact state of the first part and the second part is normal based on the position detection signal, and generate a connection confirmation execution command under the condition that the judged state is normal; The connection confirmation line between the connection confirmation end of the vehicle and the connection part is set to receive the connection confirmation execution instruction, and conduct the connection confirmation line between the connection confirmation end of the electric vehicle and the connection part according to the connection confirmation execution instruction, so that The connection confirmation line circuit between the charging pile and the electric vehicle is normal, and the electric vehicle is charged only when the connection confirmation line circuit is confirmed to be normal.

Further, before charging starts, the connection confirmation execution instruction includes a delay execution instruction; the executor is set to delay a time according to the connection confirmation execution instruction to conduct the connection confirmation line between the connection confirmation end of the electric vehicle and the connection part, so that the charging is performed. The connection confirmation line circuit between the pile and the electric vehicle is normal, and the electric vehicle can be charged only when the connection confirmation line circuit is confirmed to be normal.

Further, the data receiving port is arranged to also receive at least one of a temperature signal and a fault signal of the first component and/or the second component; the processor is arranged to receive the signal from the data receiving port, and based on the position The detection signal judges whether the contact state of the first part and the second part is normal, and judges whether the temperature state or the fault state is normal based on at least one of the temperature signal and the fault signal of the first part and/or the second part. Normally, the connection confirmation execution command is generated.

Further, the connecting component is the connecting device, the connecting device is a gun-plugging connecting device, and the gun-plugging connecting device includes a plug and a socket matching the plug; the data receiving port is set to also receive pressure. detection signal; wherein, the pressure detection signal is a signal generated when the plug gun and the socket of the electric vehicle are inserted into place; the processor is set to receive the signal from the data receiving port, and judge the first part and the second part based on the position detection signal Whether the contact state of the components is normal or not, based on the pressure detection signal, the plugging state of the socket of the electric vehicle is judged, and the connection confirmation execution command is generated when the judged states are all normal.

Another control device for a charging system of the present application, in the charging system, the charging end of the power supply device is electrically connected to the charging end of the device to be charged via the charging connection part, and the first part of the charging connection part is electrically connected to the charging end of the power supply device The second part of the charging connection part is electrically connected to the charging end of the device to be charged, the first part and the second part are in contact to realize the connection between the charging end of the power supply device and the charging end of the device to be charged, and the power supply device assists The wire end is electrically connected to one end of the connecting member, the other end of the connecting member is connected to the auxiliary wire end of the device to be charged, and a connection confirmation wire and a communication wire are arranged between the auxiliary wire end of the power supply device and the auxiliary wire end of the device to be charged. The control device is set to control the on-off of at least one line between the auxiliary wire end of the power supply equipment and the connecting part; the control device includes: a data receiving port, which is set to receive a detection signal; wherein the detection signal includes at least one of a position detection signal between the first part and the second part, a temperature signal of the first part and/or the second part, and a fault signal; a processor, configured to be connected to the data receiving port, to receive data from Receives the signal of the port, judges whether the contact state of the first part and the second part is normal based on the position detection signal, judges whether the temperature state is normal based on the temperature signal, judges whether the fault state is normal based on the fault signal, and generates when the judgment state is normal. an execution instruction; and an actuator, which is arranged on at least one line between the auxiliary wire end of the power supply device and the connection part, is arranged to receive the execution instruction, and conducts the auxiliary wire end of the power supply device and the connection part according to the execution instruction At least one line between the auxiliary line ends of the power supply device and the auxiliary line end of the device to be charged is normal, and the device to be charged is only turned on when it is confirmed that the line circuit is normal.

Another control device for a charging system of the present application, in the charging system, the charging end of the power supply device is electrically connected to the charging end of the device to be charged via the charging connection part, and the first part of the charging connection part is electrically connected to the charging end of the power supply device The second part of the charging connection part is electrically connected to the charging end of the device to be charged, the first part and the second part are in contact to realize the connection between the charging end of the power supply device and the charging end of the device to be charged, and the power supply device assists The wire end is electrically connected to one end of the connecting member, the other end of the connecting member is connected to the auxiliary wire end of the device to be charged, and a connection confirmation wire and a communication wire are arranged between the auxiliary wire end of the power supply device and the auxiliary wire end of the device to be charged. At least one line of the device; the control device is configured to control the on-off of at least one line between the auxiliary line end of the device to be charged and the connecting part; the control device includes: a data receiving port, which is configured to receive a detection signal; wherein, the detection signal Including at least one signal of a position detection signal between the first part and the second part, a temperature signal of the first part and/or the second part, and a fault signal; the processor is configured to be connected to the data receiving port and receive data from The signal of the data receiving port, based on the position detection signal to determine whether the contact state of the first part and the second part is normal, based on the temperature signal to determine whether the temperature state is normal, based on the fault signal to determine whether the fault state is normal, in the case that the judgment state is normal generating an execution instruction; and, an actuator, which is arranged on at least one line between the auxiliary line end of the device to be charged and the connecting component, and is configured to receive the execution instruction, and turn on the auxiliary line end of the device to be charged according to the execution instruction At least one line between the connecting component and the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged is normal, and the device to be charged is only turned on when it is confirmed that the circuit circuit is normal.

In the present application, the control device is used to control the disconnection of charging of the electric vehicle by controlling the disconnection of at least part of the lines of the auxiliary line loop. In other words, the control device controls the connection confirmation line in the auxiliary line to indirectly realize the control of the disconnection of the power line (or called the charging line). That is to say, the control device does not directly control the disconnection of the power line of the electric vehicle. In this way, when the control device is arranged in the control box, the control box can be made relatively small, which can save the space occupied by the control box and facilitate the layout. In addition, the manufacturing cost of the control box is also saved.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of an AC charging control principle of a control device of a charging system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the AC charging control principle of the control device of the charging system of the present invention in another embodiment;

FIG. 3 is a schematic flow chart of the control method of the charging system of the present invention in an embodiment.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means more than two; the terms "upper", "lower", "left", "right", "inner", " The orientation or positional relationship indicated by "outside" is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present application. Application restrictions. Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance. "Vertical" is not strictly vertical, but within the allowable range of errors. "Parallel" is not strictly parallel, but within the allowable range of errors.

Orientation words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

Identical, functionally similar elements, features and parts, and those having the same effect, in each instance, use the same reference numerals in the drawings.

As shown in FIG. 1, an embodiment of the present invention relates to a charging system 10, including: an electric vehicle 102, an AC charging pile 103, a control device 101, a charging connection part 1001 (for example, a connection device 1001A) and a connection component 1002 , the charging terminal 1021 of the electric vehicle 102 is connected to the charging terminal 1031 of the AC charging pile 103 through the connecting device 1001A, and the auxiliary wire terminal 1022 of the electric vehicle 102 is connected to the auxiliary wire terminal 1032 of the AC charging pile 103 through the connecting member 1002 .

The charging end 1031 of the AC charging pile 103 is electrically connected to the first part 1001a of the docking device 1001A, the charging end 1021 of the electric vehicle 102 is electrically connected to the second part 1001b of the docking device 1001A, the first part 1001a and the second part 1001b Relatively move and contact to realize the connection between the charging end 1031 of the AC charging pile 103 and the charging end 1021 of the electric vehicle 102 . One end is connected to the auxiliary line end 1022 of the electric vehicle; the control device 101 controls the connection confirmation line between the auxiliary line end 32 of the AC charging pile 103 and the connecting member 1002 to be on and off.

When the charging end 1031 of the AC charging pile 103 and the charging end 1021 of the electric vehicle 102 are in contact and connected, the connecting member 1002 is connected.

The connecting part 1002 may be a structure of a docking device, and the first part and the second part of the docking device are in close contact with each other so that the auxiliary wire end 1032 of the AC charging pile 103 and the electric vehicle 102 and the auxiliary wire end 1022 are in contact with each other. Connection, that is, the transmission of signals in a contact manner.

The connection devices can all be copper bars, and the copper bars of the charging connection part 1001 and the copper bars of the connection part 1002 have the same model, so that the copper bars used for the charging connection part 1001 are aligned and contacted normally, and the copper bars used for the connection part 1002 The copper busbars are also just aligned and in normal contact. That is, when the charging terminal 31 of the AC charging pile 103 and the charging terminal 21 of the electric vehicle 102 are in contact and connected, the connecting components 1002 are connected simultaneously.

The above-mentioned connection device can also be a plug-in type connection device, including a plug-in and a socket matched with the plug-in, and a pressure-sensitive shrapnel is arranged in the plug-in or the socket. When the plug-in is completely inserted into the socket of the electric vehicle When the sensor is triggered, the pressure detection signal is generated. That is, the pressure detection signal indicates that the plug is completely plugged into the socket of the electric vehicle.

In one embodiment, the control device 101 includes: a data receiving port 1011 , a processor 1012 and an actuator 1013 . The data receiving port 1011 is configured to receive the position detection signal 1014 between the first part 1001a and the second part 1001b of the docking device. The processor 1012 is configured to be connected to the data receiving port 1011, receives a signal from the data receiving port 1011, and judges whether the contact state of the first part 1001a and the second part 1001b is normal based on the position detection signal 1014, and the judgment state is normal In this case, a connection confirmation execution command is generated. The actuator 1013 is set so that one end is connected to the processor 1012, and the other end is connected between the connection confirmation line between the connecting component 1002 and the auxiliary line end 1032 of the AC charging pile 103, and is set to receive the connection confirmation execution instruction sent by the processor, And according to the connection confirmation execution instruction, the connection confirmation line between the connection part 1002 and the auxiliary line end 1032 of the AC charging pile 103 is connected, so that the connection confirmation line loop between the AC charging pile 103 and the electric vehicle 102 is normal and the connection confirmation line is confirmed. When the line circuit is normal, the electric vehicle 102 is turned on for charging. In this way, it is possible to control the disconnection of the charging by controlling the disconnection of the connection confirmation line.

In the charging system, the ports connecting other lines other than power lines (or charging lines) are collectively referred to as auxiliary line ends, and between the auxiliary line end of the charging pile and the auxiliary line end of the device to be charged are provided with a connection confirmation line and/or Or communication lines, or other auxiliary lines.

The auxiliary line end of the charging pile includes the connection confirmation end of the charging pile, the auxiliary line end of the electric vehicle includes the connection confirmation end of the electric vehicle, and the connection confirmation line is connected between the connection confirmation end of the charging pile and the connection confirmation end of the electric vehicle.

As shown in FIG. 1 , the charging system 10 also includes an AC power source 104 . The AC power supply 104 includes an L-phase line, an N-neutral line, and a PE ground line, that is, a charging line (or called a power line) as three lines. Correspondingly, the charging wire between the electric vehicle 102 and the AC charging pile 103 includes an L-phase wire, an N-neutral wire, and a PE ground wire. In this way, the charging connection portion 1001 also includes three connecting devices 1001A corresponding to the three lines, respectively. The auxiliary line between the electric vehicle 102 and the AC charging pile 103 includes a connection confirmation line and a control confirmation signal line, which transmit the charging confirmation signal CC and the control confirmation signal CP respectively.

The charging end of the electric vehicle 102 is connected to the charging end of the AC charging pile 103 through the charging connection part 1001 , and the auxiliary wire end of the electric vehicle 102 is connected to the auxiliary wire end of the AC charging pile 103 through the connecting part 1002 . The control device 101 is configured to control the connection confirmation line between the auxiliary line ends (CC1, CP1) of the AC charging pile 103 and the auxiliary line ends (CC6, CP6) of the electric vehicle on and off.

In the charging system 10 , the charging terminals ( L1 , N1 , PE1 ) of the AC charging pile 103 are electrically connected to the first components (corresponding to the three ports L2 , N2 , PE2 ) corresponding to the three connecting devices 1001A of the charging connection portion 1001 . , the charging end (L5, N5, P5) of the electric vehicle 102 is electrically connected to the second component (corresponding to the three ports L3, N3, PE3) of the three connecting devices 1001A electrically connected to the charging connecting part 1001, and the three connecting The three first parts and the corresponding second parts of the device 1001A move relatively and contact respectively to realize one of the charging ends (L1, N1, PE1) of the AC charging pile 103 and the charging ends (L5, N5, PE5) of the electric vehicle 102. The auxiliary wire ends (CC1, CP1) of the AC charging pile 102 are electrically connected to one end (CC2, CP2) of the connecting member 1002, and the auxiliary wire ends (CC5, CP5) of the electric vehicle 102 are electrically connected to the connecting member 1002. The other port (CC3, CP3). When the charging terminal (L1, N1, PE1) of the AC charging pile and the charging terminal (L5, N5, PE5) of the electric vehicle are in contact and connected at the charging connection part 1001, the auxiliary line terminal (CC1, CP1) of the AC charging pile The connection part 1002 is connected with the auxiliary line terminals (CC5, CP5) of the electric vehicle.

The data receiving port 1011 includes several receiving terminals 1011a, and the several receiving terminals 1011a of the data receiving port 1011 respectively receive the first position detection signal 1014a ( Indicates the positional relationship in the X direction) and the second position detection signal 1014b (indicates the positional relationship in the Y direction), the temperature signal 1015 between the three first components and the corresponding second components, the fault signal 1016 and the pressure detection signal 1017. Wherein, when the connecting device is a plug-in connecting device, when the plug is completely inserted into the socket of the electric vehicle, a pressure detection signal 1017 is generated.

The processor 1012 receives the signal from the data receiving port 1011, and judges whether the contact states of the three first components and the corresponding second components in the X direction and the Y direction are normal based on the first position detection signal 1014a and the second position detection signal 1014b , based on the temperature signal 2015 to determine whether the temperature state is normal, based on the fault signal 1016 to determine whether there is a fault, and based on the pressure detection signal 1017 to determine whether the plug is fully plugged into the socket of the electric vehicle. After judging that the contact state of the first part and the second part in the X direction and the Y direction is normal, the temperature state is normal, the fault signal 2016 indicates that there is no fault (that is, the fault state is normal), and the plug is completely plugged into the electric vehicle. When the socket (that is, the plugged state is normal), a connection confirmation execution command is generated.

The actuator 1013 includes a relay with a 1-way switch. The relays of the 1-way switch are respectively arranged on the connection confirmation line between the connecting component (CC2) and the auxiliary line terminal (CC1) of the AC charging pile 103. The relay of the circuit switch performs the on-off operation of the connection confirmation line. When the actuator 1013 receives the connection confirmation execution instruction from the processor 1012, it closes the relay of the 1-way switch according to the connection confirmation execution instruction, that is, the connection between the auxiliary line end of the AC charging pile and the auxiliary line end of the electric vehicle is turned on. Confirm the line, so that the connection between the AC charging pile 103 and the electric vehicle 102 confirms that the circuit is normal, and the electric vehicle 102 is turned on for charging when the circuit of the connection confirmation line is confirmed to be normal.

The control principle of the control device 101 of the embodiment in the AC charging is specifically: when the electric vehicle 102 is close to the AC charging pile 103, the second component (corresponding to the three ports) corresponding to the three connecting devices 1001A of the charging connection part 1001 L3, N3, PE3) and the first parts (corresponding to the three ports L2, N2, PE2) corresponding to the three connecting devices 1001A of the charging connection part 2001 are in contact and aligned (the charging connection part 1001 shown in FIG. aligned state), the ports (CC3, CP3) and ports (CC2, CP2) of the connecting component 1002 are also connected. The charging requirement has been met. Therefore, in the X direction, the electric vehicle touches the travel switch, the travel switch generates a first position detection signal, and transmits the first position detection signal to the control device 101; in the Y direction, the electric vehicle is The proximity switch senses that the proximity switch generates a second position signal and transmits the second position signal to the control device 101. When the processor 1012 in the control device detects the first position detection signal and the second position detection signal at the same time, Determine the second part (corresponding to the three ports L3, N3, PE3) corresponding to the three connecting devices 1001A of the charging connection part 1001 and the first part (corresponding to the three ports) corresponding to the three connecting devices 1001A of the charging connection part 1001 L2, N2, PE2) in good contact. Then based on the temperature signal, the fault signal and the pressure detection signal, it is judged that the temperature between the three first components and the corresponding second components is normal, there is no fault, and when the plug is completely inserted into the socket of the electric vehicle, it is already meet the charging requirements. When the charging requirements are met, the processor sends a connection confirmation execution instruction to the actuator, and the actuator performs the closing operation according to the connection confirmation execution instruction, so that the charging connection confirmation signal is transmitted to the side of the AC charging pile, and the connection between the AC charging pile and the electric vehicle is The connection confirmation line between the two circuits is connected, and according to the charging connection confirmation signal, it is determined whether the communication state is normal. When the communication is normal, the AC contactor in the AC charging pile is closed, so that L1, N1, PE1 correspond to L, N, and PE. The AC contactor acts as a charging switch to connect the charging circuit between the electric vehicle and the charging pile to start charging.

The L1 and N1 power lines in the AC charging pile are drawn out from the AC input (L, N), and supply power to the control device 101 through the DC-to-DC control power supply.

In one embodiment, the charging system includes a travel switch and a proximity switch, which are respectively disposed at the positions of the charging connection portion 1001 . Both the travel switch and the proximity switch can detect the contact state of the first part 1001 a and the second part 1001 b of the docking device 011 of the charging connection part 1001 .

The travel switch is used to detect the contact state of the first part 1001a and the second part 1001b of the docking device 1001 in the X direction and generate a first position detection signal, and the proximity switch is used to detect the first part 1001a and the second part of the docking device 1001. The contact state of the two parts 1001b in the Y direction, and a second position detection signal is generated. As such, the position detection signal 1014 includes a first position detection signal and a second position detection signal. The data receiving port 1011 of the control device 101 receives the position detection signal 1014 . The first position detection signal indicates that the electrical conduction between the first part 1001a and the second part 1001b of the docking device 011 is normal in the X direction, respectively. The second position detection signal indicates that the electrical conduction between the first part 1001a and the second part 1001b of the docking device 1001 is normal in the Y direction, respectively. In this way, the position detection signal 1014 indicates that the electrical conduction between the first part and the second part of the connecting device is normal. In other words, the position detection signal 1014 indicates that the first part and the second part are in normal contact, and the charging conditions are met. .

In one embodiment, the connection part also adopts the structure of a connection device, and the connection device can be a copper bar, and the copper bar of the charging connection part 1001 and the copper bar of the connection part 1002 have the same model, so as to be used for charging connection While the copper bars of the part 1001 are aligned and contacted normally, the copper bars used to connect the component 1002 are also aligned and contacted normally. In this case, a travel switch and a proximity switch may be provided at the position of the connecting part 1002 for detecting the contact state of the first part and the second part of the docking device of the connecting part 1002 and generating the corresponding first position detection signal and a second position detection signal. As such, the position detection signal 1014 includes a first position detection signal and a second position detection signal. The data receiving port 1011 of the control device 101 receives the position detection signal 1014 . The position detection signal 1014 indicates that the electrical continuity between the first part and the second part of the docking device connecting the parts is normal. In this way, it is also indicated that the electrical continuity between the first part and the second part of the docking device is normal. In other words, the position detection signal 1014 shows that the first part and the second part of the docking device of the connecting part are in normal contact, and also shows that the first part and the second part of the docking device of the charging connection part are in normal contact, with the charging conditions.

In another embodiment, the charging system 10 includes a first detection switch, a second detection switch and a third detection switch; respectively used to detect the X direction of the first part 1001a and the second part 1001b of the docking device 1001A The contact state, the contact state in the Y direction, and the contact state in the Z direction, respectively, generate a first position detection signal, a second position detection signal, and a third position detection signal. As such, the position detection signal 1014 includes a first position detection signal, a second position detection signal, and a third position detection signal. The data receiving port 1011 of the control device 101 receives the position detection signal 1014 . The position detection signal 1014 indicates that the electrical conduction between the first part and the second part of the connecting device is normal, that is, the contact is normal, and the charging condition is satisfied.

The travel switch is also called the limit switch. When the electric vehicle approaches the charging pile, and the first part and the second part also approach and touch each other, after the electric vehicle approaches and touches the travel switch, the connecting rod of the travel switch drives the contact of the switch. A closed contact opens or an open contact closes. Proximity switch, also known as non-contact travel switch, can realize travel control and limit protection functions. In this application, travel switches and proximity switches can be used interchangeably.

In one embodiment, the charging system includes an image recognition device for image recognition of the contact state of the first part 1001a and the second part 1001b of the docking device 1001A of the charging connection part 1001 , and generates a position detection signal 1014 . The data receiving port 1011 of the control device 101 receives the position detection signal 1014 .

In one embodiment, before the charging starts, the connection confirmation execution instruction includes a delay execution instruction; the actuator 1013 is configured to delay a time according to the connection confirmation execution instruction to conduct the connection between the connecting component and the auxiliary line end 1032 of the AC charging pile 103 Confirm the line, so that the connection confirmation line circuit between the AC charging pile 103 and the electric vehicle is normal, and the charging pile starts charging the electric vehicle under the condition of confirming that the connection confirmation line circuit is normal. Before charging starts, when the first part 1001a and the second part 1001b of the docking device 1001A used as the charging connection part 1001 approach each other and contact each other, due to inertia, it takes a period of time before they can be relatively stopped and contacted. Therefore, correspondingly, the connection confirmation execution instruction includes a delay execution instruction, and the actuator 1013 is set to delay a time according to the connection confirmation execution instruction to conduct the connection confirmation line between the connection component 1002 and the auxiliary line end of the AC charging pile 103, so that Delaying the start of charging is beneficial to the safety of charging.

In one embodiment, the charging system further includes a temperature sensor for detecting the temperature of the first part 1001a and/or the second part 1001b of the docking device 1001A of the charging connection part 1001 and generating a temperature signal 1015 . The data receiving port 1011 of the control device 101 receives the temperature signal 1015 . The data receiving port 1011 is arranged to also receive the temperature signal 1015 and the position detection signal 1014 . The processor 1012 is configured to receive the signal from the data receiving port 1011, and determine whether the contact state of the first part and the second part is normal based on the position detection signal, based on the contact state of the first part and/or the second part of the docking device. The temperature signal judges whether the temperature state is normal, and generates a connection confirmation execution instruction when it is judged that the contact state of the first part and the second part is normal and the temperature state of the first part and/or the second part of the connection device is normal.

In one embodiment, the data receiving port 1011 is arranged to also receive a temperature signal 1015 , a position detection signal 1014 and a fault signal 1016 . The processor 1012 is configured to receive the signal from the data receiving port 1011, and determine whether the contact state of the first part and the second part is normal based on the position detection signal, based on the contact state of the first part and/or the second part of the docking device. The temperature signal determines whether the temperature state is normal, based on the fault signal 1016 to determine whether there is a fault, after judging that the contact state of the first part and the second part is normal, the temperature state of the first part and/or the second part of the connection device is normal, and The fault signal 1016 indicates that a connection confirmation execution command is generated in the absence of a fault state (ie, the fault state is normal).

The fault signal 1016 may be a fault signal of the charging system 10 or a fault signal from outside the charging system 10, which is not limited here.

In one embodiment, the data receiving port 1011 is configured to receive the position detection signal 1014 , the temperature signal 1015 , the position detection signal 1014 , the fault signal 1016 and the pressure detection signal 1017 . The processor 1012 is configured to receive the signal from the data receiving port 1011, and based on the position detection signal 1014 to determine whether the contact state of the first part and the second part is normal, based on the first part and/or the second part of the docking device It is judged whether the temperature state is normal based on the temperature signal of the fault signal 1016, whether there is a fault based on the fault signal 1016, and whether the plug is fully inserted into the socket of the electric vehicle based on the pressure detection signal, and the contact state of the first part and the second part is judged to be normal, The temperature state of the first part and/or the second part of the docking device is normal, the fault signal 1016 indicates that there is no fault state (ie, the fault state is normal), and the plug is fully inserted into the socket of the electric vehicle (ie, the plug If the connection status is normal), a connection confirmation execution command is generated.

In other embodiments, in DC charging, the auxiliary lines between the electric vehicle and the charging pile include CAN communication line S+, CAN communication line S-, auxiliary power positive line, auxiliary power negative line, and charging connection confirmation line CC.

The control device shown above may also place the actuator on at least one of the auxiliary lines between the electric vehicle and the charging pile. In this way, the actuator of the control device can disconnect at least one auxiliary line among the auxiliary lines between the electric vehicle and the charging pile, and can control the disconnection of charging by controlling the disconnection of the auxiliary line.

In one embodiment, the charging system 20 shown in FIG. 2 is basically the same as the charging system 10 shown in FIG. 1 , the difference is that the relay of the 1-way switch of the actuator 2013 is arranged on the connecting parts (CC2, CP2) The confirmation line is connected to the auxiliary line terminals (CC5, CP5) of the electric vehicle 402. In the charging system 20, by controlling the on-off of the relay of the 1-way switch of the actuator 2013, the on-off control of the connection confirmation line loop is realized. When the charging requirements are met, the processor sends a connection confirmation execution command to the actuator, and the relay of the 1-way switch performs a closing operation according to the connection confirmation execution command, so that the connection confirmation line loop between the AC charging pile and the electric vehicle is connected. When the communication of the connection confirmation line is normal, the AC contactor in the AC charging pile is closed. The AC contactor acts as a charging switch to connect the charging circuit between the electric vehicle and the charging pile to start charging the electric vehicle.

In yet another embodiment, the charging system is used for other devices to be charged (such as robots), the charging end of the power supply device is electrically connected to the charging end of the device to be charged via the charging connection part, and the first part of the charging connection part is electrically connected to the power supply The charging end of the device, the second part of the charging connection part is electrically connected to the charging end of the device to be charged, the first part and the second part are in contact to realize the connection between the charging end of the power supply device and the charging end of the device to be charged, The auxiliary line end of the power supply equipment is electrically connected to one end of the connecting part, the other end of the connecting part is connected to the auxiliary line end of the device to be charged, and a connection confirmation line and at least one line in the communication line; the control device is arranged to control the on-off of at least one line between the auxiliary line end of the power supply device and the connection part; the control device includes a data receiving port, a processor and an actuator.

The data receiving port is configured to receive a detection signal; the detection signal includes at least one of a position detection signal between the first part and the second part, a temperature signal of the first part and/or the second part, and a fault signal.

The processor is configured to be connected to the data receiving port, receives a signal from the data receiving port, judges whether the contact state of the first part and the second part is normal based on the position detection signal, judges whether the temperature state is normal based on the temperature signal, and judges whether the temperature state is normal based on the fault signal It is judged whether the fault state is normal, and an execution command is generated when the judged state is normal.

The actuator, which is arranged on the at least one line between the auxiliary line end of the power supply device and the connection part, is arranged to receive the execution instruction, and conducts the connection between the auxiliary line end of the power supply device and the connection part according to the execution instruction. The at least one line between the auxiliary lines of the power supply device and the auxiliary line of the device to be charged is normal, and the device to be charged can be charged only when the line circuit is confirmed to be normal.

In the charging system, the ports connecting other lines other than the power line (or charging point line) are collectively referred to as auxiliary line ends, and a connection confirmation line and a communication line are set between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged. and other auxiliary lines.

In yet another embodiment, the charging system is also used in other devices to be charged (such as robots). Unlike the above control device, the control device is configured to control at least one line between the auxiliary wire end of the device to be charged and the connecting member. on and off. Correspondingly, the actuator of the control device is arranged on the at least one line between the auxiliary line end of the device to be charged and the connecting component, and is configured to receive an execution instruction, and turn on the device to be charged according to the execution instruction At least one line between the auxiliary line end of the power supply device and the connecting part, so that the line loop between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged is normal, and the device to be charged is only turned on when it is confirmed that the line loop is normal. .

In an embodiment of a control method 30 of a charging system, in the charging system, the charging end of the charging pile is electrically connected to the first part of the docking device, and the charging end of the electric vehicle is electrically connected to the second part of the docking device The first part and the second part move relatively and contact to realize the connection between the charging end of the charging pile and the charging end of the electric vehicle, the auxiliary wire end of the charging pile is electrically connected to one end of the connecting part, and the other end of the connecting part connected with the auxiliary line end of the electric vehicle; when the charging end of the charging pile and the charging end of the electric vehicle are connected, the connecting components are connected; the method 30 uses the control device in the above embodiment to control the auxiliary line end of the charging pile The connection with the auxiliary line end of the electric vehicle confirms the connection and disconnection of the line, as shown in FIG. 3 , the method 30 includes:

S301, receive a detection signal; wherein, the detection signal is a position detection signal between the first part and the second part of the barge device;

S302, judging whether the contact state of the first component and the second component is normal based on the position detection signal, and when the judgment state is normal, generating a connection confirmation execution instruction;

S303 , according to the connection confirmation execution instruction, turn on the connection confirmation line between the auxiliary line end of the charging pile and the auxiliary line end of the electric vehicle, so that the charging is started when the connection confirmation line is confirmed to be normal.

In one embodiment, before charging starts, the connection confirmation execution instruction includes a delay execution instruction; in S303, the connection between the auxiliary line end of the charging pile and the auxiliary line end of the electric vehicle is delayed for a time according to the connection confirmation execution instruction. Connect the confirmation cable so that the charging is turned on after confirming that the communication is normal.

In one embodiment, in S301, the detection signal further includes at least one of a temperature signal of the first component and/or the second component of the docking device and a fault signal of the charging system; in S302, the signal is detected based on the position Judging whether the contact state of the first part and the second part is normal, and judging whether the temperature state or the fault state is normal based on at least one of the temperature signal of the first part and/or the second part of the connection device and the fault signal of the charging system , and generate a connection confirmation execution command when it is judged that the status is normal.

In one embodiment, the connecting member may be a structure of a connection device, the connection device is a plug-in connection device, and the plug-in connection device includes a plug-in connection and a socket matched with the plug-in connection. In S301, the detection signal further includes a pressure detection signal; wherein, the pressure detection signal indicates that the plug has been completely inserted into the socket of the electric vehicle; in S302, the contact state of the first component and the second component is determined based on the position detection signal Whether it is normal or not, based on the pressure detection signal, determine the plugging state of the plug in the socket of the electric vehicle, and generate a connection confirmation execution command when the judged states are all normal.

In other embodiments, the connection devices can be copper bars, and the copper bars of the charging connection part and the copper bars of the connection parts have the same model, so that the copper bars used for the charging connection part are aligned and contacted normally, and the copper bars of the charging connection part are used for The copper bars connecting the components are also just aligned and in normal contact. That is, when the charging end of the charging pile and the charging end of the electric vehicle are in contact and connected, the connecting components are connected at the same time.

In one embodiment, the connecting components are a near field communication transmitting device and a near field communication receiving device, and the near field communication transmitting device and the near field communication receiving device are close to each other to realize communication connection. Before or at the same time as the contact connection between the charging end of the charging pile and the charging end of the electric vehicle, the near field communication transmitting device and the near field communication receiving device of the connecting component have been connected to each other in communication. In other embodiments, the connecting components may be implemented by other structures, which are not limited here.

In the above embodiment, when the temperature signal shows that the temperature state is normal, it means that the temperature of the first part and/or the second part of the charging connection part is within the range of the working temperature (for example, there is no over-temperature), and the charging conditions are met. . When the position detection signal shows that the contact state is normal, it means that the first part and the second part of the charging connection part are in sufficient contact and conduction, and the conditions for charging are met. When the fault signal shows that the fault state is normal, it means that there is no fault in the system or outside the system, and the charging conditions are met. When the pressure detection signal shows that the plug state is normal, it means that the plug is completely plugged into the socket of the electric vehicle, and the conditions for charging are met. That is, only when all the signals indicate that the charging conditions are met, the above-mentioned control device generates a connection confirmation execution command and conducts the communication circuit between the charging pile and the electric vehicle. When the charging pile or the electric vehicle detects that the communication circuit is normal, the switch that controls the charging is closed to turn on the charging of the electric vehicle.

While the application has been described with reference to the preferred embodiments, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any manner. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. A control device for a charging system, characterized in that, in the charging system, a charging end of a charging pile is electrically connected to a charging end of an electric vehicle via a charging connection portion, and the charging connection portion is a connecting device, which is connected to the electric vehicle. The first part of the docking device is electrically connected to the charging end of the charging pile, the second part of the docking device is electrically connected to the charging end of the electric vehicle, and the first part and the second part are in contact to realize all The connection between the charging end of the charging pile and the charging end of the electric vehicle, the connection confirmation end of the charging pile is connected with the connection confirmation end of the electric vehicle via the connecting member; the control device is set to control the The connection confirmation line between the connection confirmation end of the charging pile and the connection component is connected and disconnected; the control device includes: a data receiving port configured to receive a detection signal; wherein the detection signal includes a position detection signal between the first part and the second part of the docking device; A processor is configured to be connected to the data receiving port, receive a signal from the data receiving port, judge whether the contact state of the first part and the second part is normal based on the position detection signal, and determine whether the contact state of the first part and the second part is normal. The state is normal to generate a connection confirmation execute command; and, The actuator is arranged on the connection confirmation line between the connection confirmation end of the charging pile and the connection part, and is arranged to receive the connection confirmation execution instruction, and conduct the connection confirmation execution instruction according to the connection confirmation execution instruction The connection confirmation line between the connection confirmation end of the charging pile and the connection component, so that the connection confirmation line circuit between the charging pile and the electric vehicle is normal, and the electric vehicle is only connected to the electric vehicle when the connection confirmation line circuit is confirmed to be normal. The car starts charging. 2 . The control device according to claim 1 , wherein, before charging starts, the connection confirmation execution instruction includes a delay execution instruction; the executor is configured to delay a delay according to the connection confirmation execution instruction. 3 . Time to turn on the connection confirmation line between the connection confirmation end of the charging pile and the connection part, so that the connection confirmation line circuit between the charging pile and the electric vehicle is normal and when the connection confirmation line circuit is confirmed to be normal Only then the electric vehicle is started to be charged. 3. The control device according to claim 1, characterized in that, a data receiving port configured to also receive at least one of a temperature signal and a fault signal of the first component and/or the second component; a processor, configured to receive a signal from the data receiving port, and determine whether the contact state of the first component and the second component is normal based on the position detection signal, based on the first component and/or At least one of the temperature signal of the second component and the fault signal judges whether the temperature state or the fault state is normal, and generates a connection confirmation execution instruction when the judged states are both normal. 4 . The control device according to claim 1 , wherein the connecting component is the connecting device, the connecting device is a gun-plugging connection device, and the gun-plugging connecting device comprises a plug-in and a socket that matches the plug; a data receiving port, configured to also receive a pressure detection signal; wherein, the pressure detection signal is a signal generated when the insertion gun is inserted into the socket of the electric vehicle; a processor configured to receive a signal from the data receiving port, and determine whether the contact state of the first part and the second part is normal based on the position detection signal, and determine whether the contact state of the first part and the second part is normal based on the pressure detection signal The plug-in state on the socket of the electric vehicle is grabbed, and a connection confirmation execution instruction is generated when it is judged that the states are all normal. 5. A control device for a charging system, characterized in that, in the charging system, a charging end of a charging pile is electrically connected to a charging end of an electric vehicle via a charging connection part, and the charging connection part is a connecting device, so The first part of the connecting device is electrically connected to the charging end of the charging pile, the second part of the connecting device is electrically connected to the charging end of the electric vehicle, and the first part and the second part are in contact to The connection between the charging terminal of the charging pile and the charging terminal of the electric vehicle is realized, the connection confirmation terminal of the charging pile is electrically connected to one end of the connecting member, and the other end of the connecting member is connected to the electric vehicle. The connection confirmation end of the electric vehicle is connected; the control device is configured to control the connection confirmation line between the connection confirmation end of the electric vehicle and the connection part; the control device includes: a data receiving port configured to receive a detection signal; wherein the detection signal includes a position detection signal between the first component and the second component; A processor is configured to be connected to the data receiving port, receive a signal from the data receiving port, judge whether the contact state of the first part and the second part is normal based on the position detection signal, and determine whether the contact state of the first part and the second part is normal. The state is normal to generate a connection confirmation execute command; and, The actuator is arranged on the connection confirmation line between the connection confirmation end of the electric vehicle and the connection member, and is arranged to receive the connection confirmation execution instruction, and conduct the connection confirmation execution instruction according to the connection confirmation execution instruction The connection confirmation line between the connection confirmation end of the electric vehicle and the connection part, so that the connection confirmation line circuit between the charging pile and the electric vehicle is normal, and the electric vehicle is only connected to the electric vehicle when it is confirmed that the connection confirmation line circuit is normal. The car starts charging. 6 . The control device according to claim 5 , wherein, before charging starts, the connection confirmation execution instruction includes a delay execution instruction; the executor is configured to delay a delay according to the connection confirmation execution instruction. 7 . Time to turn on the connection confirmation line between the connection confirmation end of the electric vehicle and the connection component, so that the connection confirmation line circuit between the charging pile and the electric vehicle is normal, and when the connection confirmation line circuit is confirmed to be normal Only then the electric vehicle is started to be charged. 7. The control device according to claim 5, characterized in that: a data receiving port configured to also receive at least one of a temperature signal and a fault signal of the first component and/or the second component; a processor, configured to receive a signal from the data receiving port, and determine whether the contact state of the first component and the second component is normal based on the position detection signal, based on the first component and/or At least one of the temperature signal of the second component and the fault signal judges whether the temperature state or the fault state is normal, and generates a connection confirmation execution instruction when the judged states are both normal. 8 . The control device according to claim 5 , wherein the connecting member is the connecting device, the connecting device is a gun-plugging connection device, and the gun-plugging connecting device comprises a plug-in and a socket that matches the plug; a data receiving port, configured to also receive a pressure detection signal; wherein, the pressure detection signal is a signal generated when the insertion gun is inserted into the socket of the electric vehicle; a processor configured to receive a signal from the data receiving port, and determine whether the contact state of the first part and the second part is normal based on the position detection signal, and determine whether the contact state of the first part and the second part is normal based on the pressure detection signal The plug-in state on the socket of the electric vehicle is grabbed, and a connection confirmation execution command is generated when it is judged that the states are all normal. 9. A control device for a charging system, characterized in that, in the charging system, a charging end of a power supply device is electrically connected to a charging end of a device to be charged via a charging connection part, and a first part of the charging connection part is electrically connected to connected to the charging end of the power supply device, the second part of the charging connection part is electrically connected to the charging end of the device to be charged, and the first part and the second part are in contact to realize the charging end of the power supply device The connection between the charging end of the device to be charged and the charging end of the device to be charged, the auxiliary line end of the power supply device is electrically connected to one end of the connecting part, and the other end of the connecting part is connected to the auxiliary line end of the device to be charged, so At least one of a connection confirmation line and a communication line is set between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged; the control device is configured to control the auxiliary line end of the power supply device to be connected with the auxiliary line end of the device to be charged. On-off of at least one line between the connecting components; the control device includes: a data receiving port configured to receive a detection signal; wherein the detection signal includes a position detection signal between the first component and the second component, a temperature signal of the first component and/or the second component, and a fault signal at least one signal of ; A processor is configured to be connected to the data receiving port, receive a signal from the data receiving port, determine whether the contact state of the first part and the second part is normal based on the position detection signal, and based on the judging whether the temperature state is normal based on the temperature signal, judging whether the fault state is normal based on the fault signal, and generating an execution instruction under the condition that the judgment state is normal; and, An actuator, arranged on the at least one line between the auxiliary line end of the power supply device and the connecting member, is configured to receive the execution instruction, and turn on the power supply device according to the execution instruction The at least one line between the auxiliary line end of the power supply device and the connecting member, so that the line loop between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged is normal, and only when it is confirmed that the line loop is normal Turn on charging of the device to be charged. 10. A control device for a charging system, characterized in that, in the charging system, a charging end of a power supply device is electrically connected to a charging end of a device to be charged via a charging connection part, and a first part of the charging connection part is electrically connected. connected to the charging end of the power supply device, the second part of the charging connection part is electrically connected to the charging end of the device to be charged, and the first part and the second part are in contact to realize the charging end of the power supply device The connection between the charging end of the device to be charged and the charging end of the device to be charged, the auxiliary line end of the power supply device is electrically connected to one end of the connecting part, and the other end of the connecting part is connected to the auxiliary line end of the device to be charged, so At least one of a connection confirmation line and a communication line is set between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged; the control device is configured to control the auxiliary line end of the device to be charged On-off of at least one line between the connecting member; the control device includes: a data receiving port configured to receive a detection signal; wherein the detection signal includes a position detection signal between the first component and the second component, a temperature signal of the first component and/or the second component, and a fault signal at least one signal of ; A processor is configured to be connected to the data receiving port, receive a signal from the data receiving port, determine whether the contact state of the first part and the second part is normal based on the position detection signal, and based on the judging whether the temperature state is normal based on the temperature signal, judging whether the fault state is normal based on the fault signal, and generating an execution instruction under the condition that the judgment state is normal; and, An actuator, which is arranged on the at least one line between the auxiliary line end of the device to be charged and the connecting component, is arranged to receive the execution instruction, and turn on the to-be-charged according to the execution instruction The at least one line between the auxiliary line end of the charging device and the connecting member makes the line loop between the auxiliary line end of the power supply device and the auxiliary line end of the device to be charged normal and after confirming that the line loop is normal Only when the device to be charged is turned on for charging.

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