CN110893781A - Charging pile, vehicle charging method and device, electric vehicle and charging system - Google Patents
Charging pile, vehicle charging method and device, electric vehicle and charging system Download PDFInfo
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- CN110893781A CN110893781A CN201811063667.0A CN201811063667A CN110893781A CN 110893781 A CN110893781 A CN 110893781A CN 201811063667 A CN201811063667 A CN 201811063667A CN 110893781 A CN110893781 A CN 110893781A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The disclosure relates to a charging pile, a vehicle charging method, a vehicle charging device, an electric vehicle and a charging system. Fill electric pile includes: fill electric pile body to and time management unit and the controller of setting on this electric pile body that fills. The time management unit is used for acquiring charging starting time input by a user, sending a control signal to the controller when the charging starting time is reached, and controlling the charging pile body to start charging the electric vehicle when the controller receives the control signal. That is, this fill electric pile and receive the start time that charges in advance to when arriving this start time that charges, begin to charge to electric vehicle, consequently, can fill electric pile through this and carry out the reservation and charge, realize the off-peak power consumption, practice thrift electric vehicle power consumption expense, the user of being convenient for rationally arranges the charge time. And a controller with timing or timing is not required to be configured in the electric vehicle, so that the electric vehicle is simple in configuration, and the cost is reduced.
Description
Technical Field
The disclosure relates to the technical field of vehicles, in particular to a charging pile, a vehicle charging method, a vehicle charging device, an electric vehicle and a charging system.
Background
With the attention of people to the energy-saving and environment-friendly problems and the vigorous promotion of national policies, the electric vehicle develops very rapidly. Since electric vehicles use electric energy in a power battery as a power source, charging is an inevitable key behavior. More and more electric vehicles are connected to the power grid on a large scale for charging, and the operation and planning of the whole power grid system are influenced. If a large number of electric automobiles are charged in a load peak period, the load peak-valley difference of a power grid is further increased, and the load of a power system is increased. In addition, since the price of electricity is higher during the peak load period (e.g., 8:00-11:00, 18:00-23:00) than during the low load period (e.g., 23:00-7:00), it is common for users to charge the electric vehicle during the peak load period, which increases the cost of electricity for using the electric vehicle.
Many high-end passenger cars (e.g., tesla, etc.) have been configured with a time-settable and self-timing controller to meet the function of reserving charging for users, but this method has high requirements for vehicle configuration, high cost, complex controller software, and long development and test period. And is not suitable for the fields of commercial electric vehicles, particularly logistics transportation vehicles, which require low vehicle cost.
Therefore, there is a need to provide a technical means for a commercial electric vehicle user to reserve charging in a load valley period, so as to charge the electric vehicle without increasing the vehicle configuration and cost.
Disclosure of Invention
In order to overcome the problems in the related art, the embodiments of the present disclosure provide a charging pile, a vehicle charging method, a device, an electric vehicle and a charging system.
In order to achieve the above object, a first aspect of the embodiments of the present disclosure provides a charging pile, including: a charging pile body, a time management unit and a controller which are arranged on the charging pile body,
the time management unit is connected with the controller and used for receiving the charging starting time input by a user and sending a starting signal to the controller when the charging starting time is reached;
and the controller is used for controlling the charging pile body to start charging the electric vehicle connected with the charging pile body when receiving the control signal sent by the time management unit.
Optionally, the charging pile further includes: a time input unit arranged on the charging pile body,
and the time input unit is connected with the time management unit and used for inputting the charging starting time and sending the charging starting time to the time management unit.
Optionally, the charging pile further includes: a communication unit arranged on the charging pile body,
the communication unit is connected with the time management unit and used for establishing communication with a user terminal, receiving the charging starting time sent by the user terminal and sending the charging starting time to the time management unit.
Optionally, the communication unit is further configured to receive a charging stop time sent by the user terminal, and send the charging stop time to the time management unit;
the time management unit is further configured to receive the charging stop time and send a stop signal to the controller when the charging stop time is reached;
the controller is further used for controlling the charging pile body to stop charging the electric vehicle when the stop signal sent by the time management unit is received.
Optionally, the time management unit includes: at least one of a timer and a timer.
A second aspect of the embodiments of the present disclosure provides a vehicle charging method applied to a charging pile, including:
sending a preset signal to the electric vehicle connected with the charging pile through a preset signal line, wherein the preset signal line comprises a first preset signal line and a second preset signal line;
receiving charging starting time input by a user;
judging whether the charging starting time is reached;
starting charging the electric vehicle when the charging start time is reached.
Optionally, the starting of charging the electric vehicle when the charging start time is reached includes:
and when the charging starting time is reached, sending a preset pulse width modulation signal to the electric vehicle through the first preset signal line.
A third aspect of the embodiments of the present disclosure provides a vehicle charging method applied to a vehicle, including:
receiving a preset signal from a preset signal line, wherein the preset signal line comprises at least one of a first preset signal line and a second preset signal line;
judging whether a preset pulse width modulation signal is received through the first preset signal line within a preset time period;
and when the preset pulse width modulation signal is received in the preset time period, a preset charging circuit is conducted so as to charge the electric vehicle.
A fourth aspect of the embodiments of the present disclosure provides a vehicle charging device applied to an electric vehicle, including:
the receiving module is used for receiving a preset signal from a preset signal line, wherein the preset signal line comprises at least one of a first preset signal line and a second preset signal line;
the judging module is used for judging whether a preset pulse width modulation signal is received through the first preset signal line within a preset time period;
and the conduction module is used for conducting a preset charging circuit when the preset pulse width modulation signal is received in the preset time period so as to charge the electric vehicle.
A fifth aspect of an embodiment of the present disclosure provides an electric vehicle, characterized by comprising: a vehicle-mounted charger, a power converter, a battery management unit and a power battery,
the vehicle-mounted charger is used for executing the vehicle charging method provided by the third aspect of the embodiment of the disclosure;
the vehicle-mounted charger, the power converter, the battery management unit and the power battery are connected through a controller local area network.
A sixth aspect of the disclosed embodiment provides a charging system, comprising: the charging pile provided by the first aspect of the embodiment of the disclosure, and the electric vehicle provided by the fifth aspect of the embodiment of the disclosure,
and the charging pile is connected with a vehicle-mounted charger of the electric vehicle through a charging gun corresponding to the charging pile.
The electric pile that fills that this disclosed embodiment provided includes: fill electric pile body to and time management unit and the controller of setting on this electric pile body that fills. The time management unit is used for acquiring charging starting time input by a user, sending a control signal to the controller when the charging starting time is reached, and controlling the charging pile body to start charging the electric vehicle when the controller receives the control signal. That is, should fill electric pile and receive in advance when charging the start-up time to when arriving this start-up time that charges, begin to charge to electric vehicle, consequently, can fill electric pile and carry out the reservation through this and charge, realize the off-peak power consumption, practice thrift electric vehicle power consumption expense, the user of being convenient for rationally arranges the charge time.
In addition, due to the fact that the charging pile provided by the embodiment of the disclosure can be used for achieving the reserved charging, a controller with timing or timing is not required to be configured in the electric vehicle, the configuration of the electric vehicle is simple, the cost is reduced, the operation steps are simplified, and the charging pile is particularly suitable for commercial electric vehicles used by large customers or logistics companies.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a block diagram illustrating a structure of a charging pile according to an exemplary embodiment of the present disclosure.
Fig. 2 is a block diagram illustrating a structure of a charging pile according to another exemplary embodiment of the present disclosure.
Fig. 3 is a block diagram illustrating a structure of a charging pile according to another exemplary embodiment of the present disclosure.
Fig. 4 is a flowchart illustrating a vehicle charging method applied to a charging post according to an exemplary embodiment of the present disclosure.
Fig. 5 is a flowchart illustrating a vehicle charging method applied to an electric vehicle according to an exemplary embodiment of the present disclosure.
Fig. 6 is a diagram illustrating interactions between a charging post and an electric vehicle in a vehicle charging method according to an exemplary embodiment of the present disclosure.
Fig. 7 is a block diagram illustrating a structure of a vehicle charging apparatus applied to an electric vehicle according to an exemplary embodiment of the present disclosure.
Fig. 8 is a schematic structural diagram illustrating a charging system according to an exemplary embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
When utilizing current electric pile of filling to charge electric vehicle, the rifle that charges on filling electric pile inserts the vehicle interface that charges earlier usually to the flow, then just can utilize this electric pile of filling to charge electric vehicle to punching the card on filling electric pile. Therefore, when the prior art is adopted to charge the electric vehicle, the user needs to arrive at the charging pile and can start charging by swiping the card, and the load valley period is mostly positioned at night. The user is in the rest state this moment, probably can't reach and fill electric pile department and punch the card so that fill electric pile and begin to charge to lead to most users can not choose to charge electric vehicle at load valley period, aggravate the electric wire netting load peak valley difference. In addition, it is not favorable for the user to reasonably arrange the charging time of the electric vehicle.
Fill electric pile based on present and need the user to punch the card just can charge electric vehicle, can lead to the user can not rationally arrange the time of charging, also can not select to charge electric vehicle at the load valley period at night. Therefore, in order to enable a user to reasonably arrange the charging time of the electric vehicle and increase the number of the electric vehicles charged in the load valley period, the embodiment of the disclosure provides a charging pile, a vehicle charging method, a vehicle charging device, an electric vehicle and a charging system.
Referring to fig. 1, fig. 1 is a block diagram illustrating a charging pile according to an exemplary embodiment of the present disclosure. As shown in fig. 1, the charging pile includes: fill electric pile body 11 and set up time management unit 12 and controller 13 on this fills electric pile body 11, wherein, this time management unit 12 links to each other with controller 13, and controller 13 and fill electric pile body 11 communication connection, this time management unit 12 is used for receiving the start time of charging of user's input, and when reaching this start time of charging, send the start signal to its controller 13 that links to each other, this start signal sign fills the signal that electric pile begins to charge to electric vehicle. The controller 13 is configured to control the charging pile body 11 to start charging the electric vehicle connected to the charging pile body 11 when receiving the control signal sent by the time management unit 12.
The charging pile provided in the embodiment of the present disclosure has a function of presetting charging start time, and it should be noted that a user may insert a charging gun on the charging pile into an electric vehicle to be charged first, and then input the charging start time by setting a scheme of the charging start time. Or the charging time can be input by firstly setting the charging starting time, and then the charging gun on the charging pile is inserted into the electric vehicle to be charged. In the embodiment of the present disclosure, the order of setting the charging start time and inserting the charging gun into the electric vehicle to be charged is not specifically defined, and it is only necessary to insert the charging gun into the electric vehicle to be charged before the user leaves the charging pile.
The charging start time may be a specific time, for example: 21: 00, etc., indicating that at time 21: at 00, the electric vehicle starts to be charged. It may also be a specific time, for example: 150 minutes, etc., indicating that charging of the electric vehicle is started after 150 minutes has elapsed from the start of setting the charge start time. It should be noted that, in the embodiment of the present disclosure, whether the charging start time is the time point or the time period is not particularly limited.
The implementation mode of presetting charging starting time in a charging pile is as follows: when the user drives the electric vehicle to be charged to the charging pile, the charging start time is automatically input to the charging pile, wherein the charging start time represents the time for the charging pile to start charging the electric vehicle.
As shown in fig. 2, the charging pile may further include a time input unit 14, and the time input unit 14 is disposed on the charging pile body 11 and is used for inputting a charging start time. In this way, when a user needs to set the charging start time for the charging pile, the charging start time can be input in the time input unit 14, for example, a time input interface can be set on the surface of the charging pile body 11, and then the user can actively input the charging start time in the interface.
As shown in fig. 2, the time management unit 12 is connected to the time input unit 14, and according to the above scheme, after the charging start time is input in the time management unit 12, the time input unit 14 transmits the charging start time to the time management unit 12, that is, the time management unit 12 can acquire the charging start time.
Another embodiment of presetting the charging start time in the charging pile is as follows: when a user drives an electric vehicle to be charged to a charging pile, the charging start time is not directly input on the charging pile by self, but is sent to the charging pile through a terminal communication technology.
As shown in fig. 3, the charging pile may further include a communication unit 15, which is disposed on the charging pile body 11 and configured to establish a communication connection with the user terminal 21, and after the communication connection is established, the communication unit is further configured to receive the charging start time sent by the user terminal 21. The embodiment of establishing a communication connection between the communication unit 15 and the user terminal 21 belongs to the prior art, and is not described herein again.
After the communication unit 15 and the user terminal 21 establish a communication connection, the user may input a charging start time in the user terminal 21. It should be noted that, under the condition that the user inputs the charging start time by using the user terminal 21, the charging start time can be remotely input through the user terminal 21, so that the user does not need to stay in the charging pile for a long time, and only needs to leave the charging pile after inserting the charging gun on the charging pile into the electric vehicle to be charged, so that the mode of inputting the charging start time by the user is more flexible.
As shown in fig. 3, the time management unit 12 is connected to the communication unit 15, after the user inputs the charging start time in the user terminal 21, the user terminal 21 sends the charging start time to the communication unit 15 according to the communication connection established with the communication unit 15, and the communication unit 15 receives the charging start time and sends the charging start time to the time management unit 12, that is, the time management unit 12 can obtain the charging start time.
In order to enable the terminal pile to start charging the electric vehicle when the charging start time is reached, the charging pile in the embodiment of the disclosure further has a timing function. Accordingly, the time management unit 12 may include at least one of a timer and a timer.
One possible implementation: the time management unit 12 is a timer, and when the charging start time input by the user is a specific time, the timer may subtract the time from the time when the charging start time is set, and the time when the timing is finished is the time when the charging pile starts to charge the electric vehicle. For example, assuming that the charging start time input by the user is 150 minutes, the timer subtracts the 150 minutes from the time when the charging start time is input by the user, and sends a start signal to the controller 13 until the timing is finished, so that the controller 13 controls the charging pile body to start charging the electric vehicle when receiving the start signal.
Another possible implementation: the time management unit 12 is a timer, and when the charging start time input by the user is a specific time, the timer may start timing by using a time at which the charging start time is set as an initial time, and the charging pile starts charging the electric vehicle until the time recorded by the timer reaches the charging start time. For example, assuming that the charging start time input by the user is 150 minutes, the timer starts counting from the time when the charging start time is input by the user, and the charging pile starts charging the electric vehicle when the timer records 150 minutes.
Yet another possible implementation: the time management unit 12 includes a timer and a timer, and the timer may subtract the time from the time when the charging start time is set, and the time when the timing is finished is the time when the charging pile starts to charge the electric vehicle. Meanwhile, the timer can start timing by taking the moment for setting the charging starting time as the starting moment, and the charging pile starts charging the electric vehicle until the time recorded by the timer reaches the charging starting time. Thus, when one of the timer and the timer fails, the other can also determine whether to charge the electric vehicle.
In addition, when the input charging start time is a specific time, the charging pile can calculate the time from the current time to the time input by the user, so that whether the electric vehicle is charged or not can be judged according to the scheme. And will not be described in detail herein.
When the time management unit 12 determines that the current time reaches the charging start time, it starts to send a control signal to the controller 13 connected thereto, and the controller 13 can receive the control signal and generate a control instruction according to the control signal, so that the charging pile body 11 can be controlled to charge the electric vehicle connected to the charging pile body 11.
In addition, because the user can also can charge the stop time through user terminal 21 remote input charging start time correspondingly to the user can this fill electric pile of remote control stop to electric vehicle charging, further improves the user and uses the experience that fills electric pile and carry out charging to electric vehicle, improves the intellectuality of filling electric pile.
Specifically, as shown in fig. 3, the user inputs charging start time to the charging pile through the user terminal 21, after the charging start time is reached, the charging pile charges the electric vehicle, in the charging process, the user can also send charging stop time to the charging pile through the user terminal 21 according to the self requirement, the charging is automatically finished, the flexibility of the charging pile for the electric vehicle is improved, and the user requirement is better met.
The electric pile that fills that this disclosed embodiment provided includes: fill electric pile body to and time management unit and the controller of setting on this electric pile body that fills. The time management unit is used for acquiring charging starting time input by a user, sending a control signal to the controller when the charging starting time is reached, and controlling the charging pile body to start charging the electric vehicle when the controller receives the control signal. That is, this fill electric pile and receive the start time that charges in advance to when arriving this start time that charges, begin to charge to electric vehicle, consequently, can fill electric pile through this and carry out the reservation and charge, realize the off-peak power consumption, practice thrift electric vehicle power consumption expense, the user of being convenient for rationally arranges the charge time.
In addition, due to the fact that the charging pile provided by the embodiment of the disclosure can be used for achieving the reserved charging, a controller with timing or timing is not required to be configured in the electric vehicle, the configuration of the electric vehicle is simple, the cost is reduced, the operation steps are simplified, and the charging pile is particularly suitable for commercial electric vehicles used by large customers or logistics companies.
Referring to fig. 4, fig. 4 is a flowchart illustrating a vehicle charging method applied to a charging post according to an exemplary embodiment of the present disclosure. As shown in fig. 4, the method includes steps 41 to 44.
In step 41, a preset voltage signal is sent to the electric vehicle connected to the charging pile through a preset signal line. The preset signal line comprises at least one of a first preset signal line and a second preset signal line. That is, the first preset signal line may be a Control Pilot (CP) line, and the second preset signal line may be a connection acknowledge (CC) line. This fill electric pile can be through first predetermineeing the signal line and send predetermineeing voltage signal to the electric vehicle who links to each other with filling electric pile, also can predetermine the signal line through the second and send predetermineeing the connection confirmation signal to the electric vehicle who links to each other with filling electric pile. According to the related requirement of charging the electric vehicle by using a vehicle-mounted conductive charger in the national standard of the people's republic of China, the preset voltage signal is required to be constant 9V. Since the resistance value can be detected in the CC line when the charging gun is inserted into the vehicle and cannot be detected in the CC line when the charging gun is not inserted into the vehicle, the preset connection confirmation signal may be a numerical value representing the resistance. When the electric vehicle to be charged is inserted into the charging gun on the charging pile, the charging pile can send a voltage signal of 9V to the electric vehicle to be charged through the CP wire, or send a preset connection confirmation signal to the electric vehicle to be charged through the CC wire.
In step 42, a charge start time input by a user is received. The charging pile has a function of presetting charging starting time, and the charging starting time represents time when a user wants to start charging the electric vehicle.
It should be noted that the charge starting time may be a specific time, for example: 21: 00, etc., indicating that at time 21: and 00, starting to charge the vehicle. It may also be a specific time, for example: 150 minutes, etc., indicating that charging of the vehicle is started after 150 minutes has elapsed from the start of setting the charge start timing. It should be noted that, in the embodiments of the present disclosure, whether the charging start time is the time point or the time period is not particularly limited.
The implementation mode of presetting charging starting time in a charging pile is as follows: when the user drives the electric vehicle to be charged to the charging pile, the user inputs charging starting time on the charging pile by himself. The charging pile comprises a charging pile body, a charging pile body and a time input interface, wherein the charging pile body is provided with a charging starting time input interface, and the charging starting time is input actively by a user in the interface.
Another embodiment of presetting the charging start time in the charging pile is as follows: when a user drives an electric vehicle to be charged to a charging pile, the charging start time is not directly input on the charging pile by self, but is sent to the charging pile through a terminal communication technology.
In this way, a user terminal is first required to establish a communication connection with the charging pile, and specifically, the user terminal may first establish a communication connection with a communication unit on the charging pile. Then, the user can input the charging start time in the user terminal, and the charging start time is sent to the charging pile through the user terminal. It should be noted that, under the condition that the user inputs the charging start time by using the user terminal, the charging start time can be remotely input through the user terminal, so that the user does not need to stay in the charging pile for a long time, and only needs to leave the charging pile after inserting the charging gun on the charging pile into the electric vehicle to be charged, so that the mode of inputting the charging start time by the user is more flexible.
After a user inputs charging starting time through a time input interface on the charging pile body or the charging starting time is input by using a user terminal, the charging pile can receive the charging starting time input by the user.
It should be noted that, in the embodiment of the present disclosure, step 41 may be executed first and then step 42 is executed, or step 42 may be executed first and then step 41 is executed, and the order of execution of step 41 and step 42 is not particularly limited.
In step 43, it is determined whether or not the charge start time has reached. After receiving the charging starting time input by the user, the charging pile starts to judge whether the current time reaches the charging starting time in real time. Therefore, this fill electric pile has the function of timing or timing. Illustratively, the charging pole includes at least one of a timer and a timer.
One possible implementation: the charging pile comprises a timer, when the charging starting time input by a user is a specific time, the timer can take the moment of setting the charging starting time as a starting point, subtraction is carried out on the time, and the moment of finishing timing is the moment of starting charging the electric vehicle by the charging pile. For example, assuming that the charging start time input by the user is 150 minutes, the timer subtracts the 150 minutes from the time when the charging start time is input by the user until the timing is ended, that is, it is determined that the current time reaches the charging start time input by the user.
Another possible implementation: fill electric pile and include the timer, when the start time that charges of user input is a specific time, the time of this start time that charges can be used to set up by the timer as the inception moment, begins the timing, when the time that records of timer reaches the start time that charges, fills the electric pile and begins to carry out the moment of charging to electric vehicle. For example, assuming that the charging start time input by the user is 150 minutes, the timer starts counting from the time when the charging start time is input by the user, and when the timer counts 150 minutes, that is, it is determined that the current time reaches the charging start time input by the user.
Yet another possible implementation: the charging pile simultaneously comprises a timer and a timer, wherein the timer can take the moment of setting the charging starting time as a starting point, subtract the time and time, and determine the ending moment, namely, the charging starting time input by a user is reached at the current moment. Meanwhile, the timer may start timing with the time at which the charging start time is set as an initial time, until the time recorded by the timer reaches the charging start time, that is, it is determined that the current time reaches the charging start time input by the user. Thus, when one of the timer and the timer fails, the other can also determine whether to charge the electric vehicle.
In addition, when the input charging start time is a specific time, the charging pile may calculate the time from the current time (the time when the user inputs the charging start time) to the time input by the user, so as to determine whether to charge the electric vehicle according to the scheme. And will not be described in detail herein.
In step 44, when the charge start time is reached, the electric vehicle starts to be charged. Specifically, a preset pulse width modulation signal is transmitted to the electric vehicle to be charged through a first preset signal line. According to the national standard of the people's republic of China, the voltage of the preset pulse width modulation signal should be 9V. Specifically, according to the regulations in the national standards of the people's republic of china, before the charging pile charges the electric vehicle to be charged, a pulse width modulation signal with a voltage of 9V, that is, the preset pulse width modulation signal, needs to be sent to the electric vehicle to be charged. When the charging pile determines that the current moment reaches the charging starting time input by a user through a timer or a timer, the timer or the timer can send a starting signal to a controller in the charging pile, and when the controller receives the starting signal, the controller controls the charging pile to switch a 9V voltage signal of a first preset signal line into a preset pulse width modulation signal so as to start charging the electric vehicle.
In the embodiment of the disclosure, firstly, the charging pile sends a preset signal to the electric vehicle to be charged through a preset signal line, receives the charging start time input by a user, then, judges whether the current time reaches the charging start time in real time, and finally, when the charging start time is reached, the electric vehicle starts to be charged. Therefore, the charging pile can receive the charging starting time input by the user in advance, and when the charging starting time is reached, the electric vehicle starts to be charged. Therefore, the user can reserve the time for starting charging on the charging pile, off-peak power utilization is realized, cost is saved, and the user can conveniently and reasonably arrange the charging time of the electric vehicle.
Referring to fig. 5, fig. 5 is a flowchart illustrating a vehicle charging method applied to an electric vehicle according to an exemplary embodiment of the present disclosure. As shown in fig. 5, the method includes steps 51 to 53.
In step 51, a preset signal is received from a preset signal line, wherein the preset signal line includes at least one of a first preset signal line and a second preset signal line. That is, the first preset signal line may be a Control Pilot (CP) line, and the second preset signal line may be a Connection Confirm (CC) line. This fill electric pile can be through first predetermineeing the signal line and send predetermineeing voltage signal to the electric vehicle who links to each other with filling electric pile, also can predetermine the signal line through the second and send predetermineeing the connection confirmation signal to the electric vehicle who links to each other with filling electric pile. According to the related requirement of charging an electric vehicle by using a vehicle-mounted conductive charger in the national standard of the people's republic of China, the preset voltage signal is required to be constant 9V, and the preset connection confirmation signal can be a numerical value representing resistance. When the electric vehicle to be charged is inserted into the charging gun of the charging pile, the vehicle receives a voltage signal of 9V from the CP line or receives a preset connection confirmation signal from the CC line.
It should be understood that when the vehicle receives a voltage signal of 9V from the CP line or receives a preset connection confirmation signal from the CC line, the vehicle-mounted charger on the electric vehicle is activated, so that the vehicle-mounted charger CAN further activate devices such as a power converter, a battery management unit, and a vehicle Controller on the electric vehicle through a Controller Area Network (CAN) activation mode or a hard-line activation mode. The embodiments of the activated vehicle-mounted charger and the activated power converter, the battery management unit and other devices of the vehicle-mounted charger belong to the prior art, and are not described herein again.
In step 52, it is determined whether a preset pwm signal is received through the first preset signal line within a preset time period. Because the charging pile starts to charge the electric vehicle only when the charging start time is reached, after the vehicle-mounted charger, the power converter and the battery management unit are activated, it cannot be indicated that the charging pile starts to charge the vehicle, and therefore the electric vehicle also needs to judge whether the charging pile starts to charge the vehicle.
In addition, according to the regulations in the national standards of the people's republic of china, before the charging post charges the electric vehicle to be charged, a pulse width modulation signal of 9V, i.e., the preset pulse width modulation signal, needs to be transmitted to the electric vehicle to be charged through the CP line to indicate to the vehicle to be charged that the charging post is ready to charge the electric vehicle to be charged. Therefore, in the embodiment of the present disclosure, the electric vehicle may determine whether the charging pile is ready to charge the electric vehicle by determining whether the preset pwm signal is received through the first preset signal line within the preset time period, that is, determining whether the charging start time is reached. The preset time period may be a default value or a value set by the user (e.g., 10min, 15min, etc.).
If the preset pwm signal is received within the preset time period according to the judgment result of step 52, step 53 is executed. If the preset pulse width modulation signal is not received within the preset time period, the vehicle enters a dormant state to save the electric energy consumption. It should be noted that, when the vehicle is in the sleep state, the vehicle-mounted charger is also in the sleep state, and when the charging start time is reached, because the charging pile sends the preset pulse width modulation signal through the first preset signal line, correspondingly, the vehicle-mounted charger of the electric vehicle receives the preset pulse width modulation signal, and is activated by the preset pulse width modulation signal. Similarly, the on-board charger on the vehicle electric vehicle is activated, so that the on-board charger CAN further activate the power converter, the battery management unit and other devices on the electric vehicle through a Controller Area Network (CAN) activation mode or a hard-wire activation mode, so as to charge the electric vehicle.
In step 53, when the preset pwm signal is received within the preset time period, the preset charging circuit is turned on to charge the electric vehicle. If the electric vehicle receives the preset pulse width modulation signal within the preset time period, the vehicle-mounted charger is preset with the pulse width modulation signal and indicates that the charging pile is ready to charge the electric vehicle, namely the charging starting time is reached. At this time, the electric vehicle turns on a preset charging circuit.
This predetermine charging circuit can be for example bleeder circuit, and after this predetermine charging circuit switched on, predetermine the voltage on the signal line and can reduce to make and fill electric pile and confirm that the electric vehicle that waits to charge has been ready and can charge, thereby charges this electric vehicle. The voltage dividing circuit may include a preset resistor, and the manner of turning on the voltage dividing circuit may be to close a preset switch. That is, the preset charging circuit may be turned on by closing the preset switch connected in series between the preset signal line and the preset resistor, so that the preset signal line is turned on by the preset resistor, and the voltage on the preset signal line is reduced.
The preset resistor is a resistor which is specified in the national standard of the people's republic of china and should be connected with the preset signal line, and the resistance value of the preset resistor can be 1300 Ω, for example. The predetermined switch is the switch S2 connected to the CP line in the national standard. When the vehicle-mounted charger is activated by a 9V pulse width modulation signal, namely the preset pulse width modulation signal, the switch S2 is closed, the preset resistor is connected into the circuit to reduce the voltage in the CP line, and meanwhile, the battery management unit controls the main relay and the main auxiliary relay of the power battery to be closed to finish high-voltage back connection, so that the charging pile charges the electric vehicle.
Furthermore, when the battery management unit detects that the power battery is fully charged, for example: when the state of charge (SOC) of the power battery reaches 100%, or the voltage of the power battery reaches a first preset threshold, or the voltage of the single battery reaches a second preset threshold, or the like, a charging termination signal may be sent to the vehicle-mounted charger and the vehicle control unit. When the vehicle-mounted charger receives the charging termination signal, the preset charging circuit is disconnected (for example, the switch S2 is disconnected), so that the output of the charging pile to the electric vehicle is cut off.
By adopting the electric vehicle, because the vehicle-mounted charger of the electric vehicle can be activated by the preset pulse width modulation signal, when the charging starting time input by a user is reached and the charging pile sends the preset pulse width modulation signal to activate, the electric vehicle can conduct the preset charging circuit, and further charging is realized. Therefore, the electric vehicle can realize the scheduled charging. In addition, the electric vehicle is not provided with a timing or mechanical controller, so that the electric vehicle is simple in configuration, and the cost is reduced.
Referring to fig. 6, fig. 6 is a diagram illustrating an interaction between a charging pile and an electric vehicle in a vehicle charging method according to an exemplary embodiment of the present disclosure.
As shown in fig. 6, in step 61, the charging pile sends a preset signal to the electric vehicle to which the charging pile is connected through a preset signal line. Accordingly, the electric vehicle receives and transmits the preset signal from the preset signal line, and when the preset signal is received, the electric vehicle indicates that the charging gun of the charging pile is inserted into the electric vehicle.
In step 62, the charging pile receives the charging start time input by the user. The specific implementation of receiving the charging start time by the charging pile is as described above, and details are not repeated here.
Next, in step 63, the charging pile determines whether the charging start time is reached in real time. In step 64, the electric vehicle determines whether a preset pwm signal is received through the first preset signal line in real time within a preset time period. It can be understood that, because the start time of charging is preset in charging stake, should fill electric pile and can judge whether reach the start time of charging through the timer or the time-recorder in filling electric pile, and electric vehicle can't know this start time of charging, can only send the principle of predetermineeing pulse width modulation signal to electric vehicle when filling electric pile to it and can charge, judge when to charge it and charge it through judging whether receive in the time quantum of predetermineeing the pulse width modulation signal.
Then, in step 65, when the charging start time is reached, the charging pile sends a preset pulse width modulation signal to the electric vehicle through the first preset signal line. The charging pile sends a preset pulse width modulation signal to the electric vehicle for prompting that the electric vehicle reaches the charging time at the current moment. Thus, when the electric vehicle receives the preset pulse width modulation signal, the electric vehicle can know that the charging pile is ready to start charging the electric vehicle.
Finally, in step 66, when the electric vehicle receives the preset pwm signal within the preset time period, the preset charging circuit is turned on to charge the electric vehicle. As described above, when the electric vehicle receives the preset pwm signal, the preset charging circuit may be controlled to be turned on, and specifically, the switch S2 may be closed. Meanwhile, the battery management unit controls the main relay and the auxiliary relay of the power battery to be closed, and high-voltage return connection is completed, so that the charging pile charges the electric vehicle.
Fig. 7 is a block diagram illustrating a structure of a vehicle charging apparatus applied to an electric vehicle according to an exemplary embodiment of the present disclosure. As shown in fig. 7, the apparatus includes:
a receiving module 701, configured to receive a preset signal from a preset signal line, where the preset signal line includes at least one of a first preset signal line and a second preset signal line;
a determining module 702, configured to determine whether a preset pwm signal is received through the first preset signal line within a preset time period;
a conducting module 703, configured to conduct a preset charging circuit when the preset pwm signal is received within the preset time period, so as to charge the electric vehicle.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The disclosed embodiment also provides an electric vehicle, including: the vehicle-mounted charger is used for executing the vehicle charging method applied to the electric vehicle, and the vehicle-mounted charger, the power converter, the battery management unit and the power battery are connected through a Controller Area Network (CAN).
It should be noted that the vehicle-mounted charger, the power converter, the battery management unit, and the power battery are vehicle-mounted devices required by the electric vehicle during charging, and therefore, after the vehicle-mounted charger is activated, the vehicle-mounted charger may activate the power converter, the battery management unit, and the power battery through the CAN bus.
An embodiment of the present disclosure further provides a charging system, as shown in fig. 8, the charging system includes: the charging pile 901 and the electric vehicle, wherein the electric vehicle comprises a vehicle-mounted charger 801, a power converter 802, a battery management unit 803 and a power battery 804. And the charging pile 901 is connected with the vehicle-mounted charger 801 of the electric vehicle through a charging gun corresponding to the charging pile 901, as shown in fig. 8, a CP line and a CC line in the charging gun are connected with the vehicle-mounted charger 801 of the electric vehicle through a charging interface on the electric vehicle. Wherein the CAN bus comprises a CAN low line and a CAN high line, as shown in fig. 8.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (11)
1. A charging pile, comprising: a charging pile body, a time management unit and a controller which are arranged on the charging pile body,
the time management unit is connected with the controller and used for receiving the charging starting time input by a user and sending a starting signal to the controller when the charging starting time is reached;
and the controller is used for controlling the charging pile body to start charging the electric vehicle connected with the charging pile body when receiving the control signal sent by the time management unit.
2. The charging pile according to claim 1, further comprising: a time input unit arranged on the charging pile body,
and the time input unit is connected with the time management unit and used for inputting the charging starting time and sending the charging starting time to the time management unit.
3. The charging pile according to claim 1, further comprising: a communication unit arranged on the charging pile body,
the communication unit is connected with the time management unit and used for establishing communication with a user terminal, receiving the charging starting time sent by the user terminal and sending the charging starting time to the time management unit.
4. The charging pile according to claim 3, wherein the communication unit is further configured to receive a charging stop time sent by the user terminal, and send the charging stop time to the time management unit;
the time management unit is further configured to receive the charging stop time, and send a stop signal to the controller when the charging stop time is reached;
the controller is further used for controlling the charging pile body to stop charging the electric vehicle when the stop signal sent by the time management unit is received.
5. A charging pile according to any one of claims 1 to 4, characterised in that said time management unit comprises: at least one of a timer and a timer.
6. A vehicle charging method is applied to a charging pile and comprises the following steps:
sending a preset signal to the electric vehicle connected with the charging pile through a preset signal line, wherein the preset signal line comprises a first preset signal line and a second preset signal line;
receiving charging starting time input by a user;
judging whether the charging starting time is reached;
starting charging the electric vehicle when the charging start time is reached.
7. The vehicle charging method according to claim 6, wherein the starting of charging the electric vehicle upon reaching the charge start time includes:
and when the charging starting time is reached, sending a preset pulse width modulation signal to the electric vehicle through the first preset signal line.
8. A vehicle charging method, applied to an electric vehicle, includes:
receiving a preset signal from a preset signal line, wherein the preset signal line comprises at least one of a first preset signal line and a second preset signal line;
judging whether a preset pulse width modulation signal is received through the first preset signal line within a preset time period;
and when the preset pulse width modulation signal is received in the preset time period, a preset charging circuit is conducted so as to charge the electric vehicle.
9. A vehicle charging device, applied to an electric vehicle, comprising:
the receiving module is used for receiving a preset signal from a preset signal line, wherein the preset signal line comprises at least one of a first preset signal line and a second preset signal line;
the judging module is used for judging whether a preset pulse width modulation signal is received through the first preset signal line within a preset time period;
and the conduction module is used for conducting a preset charging circuit when the preset pulse width modulation signal is received in the preset time period so as to charge the electric vehicle.
10. An electric vehicle, characterized by comprising: a vehicle-mounted charger, a power converter, a battery management unit and a power battery,
the vehicle-mounted charger is used for executing the vehicle charging method according to claim 8;
the vehicle-mounted charger, the power converter, the battery management unit and the power battery are connected through a controller local area network.
11. An electrical charging system, comprising: the charging pile according to any one of claims 1 to 5, and the electric vehicle according to claim 10,
and the charging pile is connected with a vehicle-mounted charger of the electric vehicle through a charging gun corresponding to the charging pile.
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| CN201811063667.0A CN110893781A (en) | 2018-09-12 | 2018-09-12 | Charging pile, vehicle charging method and device, electric vehicle and charging system |
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| CN201811063667.0A CN110893781A (en) | 2018-09-12 | 2018-09-12 | Charging pile, vehicle charging method and device, electric vehicle and charging system |
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