WO2019085182A1

WO2019085182A1 - Intelligent charging method, system and device, and computer readable storage medium

Info

Publication number: WO2019085182A1
Application number: PCT/CN2017/116375
Authority: WO
Inventors: 陈朝晖; 毛业军; 龙源; 张伟先; 李玉梅
Original assignee: 中车株洲电力机车有限公司
Priority date: 2017-10-30
Filing date: 2017-12-15
Publication date: 2019-05-09
Also published as: CN107757407A

Abstract

Provided are an intelligent charging method and system, a charging device and a computer readable storage medium. The method is applied to the charging device, and comprises: acquiring a voltage of a power grid for power supply, and determining whether the voltage of the power grid is within the range of a pre-set operating voltage; and when the voltage of the power grid is the pre-set operating voltage, using an activated wireless communication antenna to acquire data information of a target vehicle, and determining, according to the acquired data information, whether the target vehicle has a fault, and if not, charging the target vehicle. According to the intelligent charging method disclosed in the present application, the reliability when a target vehicle is intelligently charged is improved by completing the communication between the target vehicle and a charging device by means of a wireless communication antenna, and using the wireless communication antenna to communicate to pre-confirm state information of the vehicle and the charging device.

Description

Intelligent charging method, system, device and computer readable storage medium

This application claims priority to Chinese Patent Application No. 201011038383.1, entitled "Intelligent Charging Method, System, Equipment, and Computer Readable Storage Media", filed on October 30, 2017, all of which is incorporated herein by reference. The content is incorporated herein by reference.

Technical field

The present invention relates to the field of energy storage device charging, and in particular to an intelligent charging method, system, device and computer readable storage medium.

Background technique

In recent years, with the development of new energy technologies, especially the development of power battery technology, modern energy-saving trams, energy-saving trolley buses, pure electric buses and electric vehicles are increasingly sought after by the market. As a necessary charging industry for vehicle energy storage power supply, the development of the charging industry is rapid. At present, various types of energy storage vehicles in China, especially energy storage modern trams, adopt various forms of flow, but mainly by vehicles. The top is dominated by flow and is moving towards intelligence.

The smart charging method used in the prior art is as shown in FIG. 1 , including: the tram maintains the roof pantograph always in the state of raising the bow, and after the vehicle enters the station, the roof pantograph is in contact with the power grid, and the ground charging device detects To the grid voltage state, determine whether the grid voltage is a reasonable voltage range; when the grid voltage is within a reasonable voltage range, after receiving the signal triggered by the target vehicle reaching the preset charging position, the charging device starts charging, and after charging to the set voltage The charging device stops charging and the vehicle leaves the station.

Although the above method realizes smart charging, the position of the vehicle is determined based on the radio frequency sensing method, and the radio frequency sensing method is susceptible to rain, dust and other factors when used outdoors, and the reliability is low, and signal loss usually occurs. The vehicle cannot be charged and so on.

Therefore, how to improve the reliability when the target vehicle is intelligently charged is an urgent problem to be solved by those skilled in the art.

Summary of the invention

In view of this, the present invention provides an intelligent charging method, system, device, and computer readable storage medium, the purpose of which is to improve the reliability of smart charging of a target vehicle. The specific plan is as follows:

A smart charging method applied to a charging device, comprising:

Obtaining a grid voltage of the power supply, and determining whether the grid voltage is a range of a preset working voltage;

If the grid voltage is within a preset operating voltage range, using the activated wireless communication antenna, acquiring data information of the target vehicle, and determining, according to the acquired data information, whether the target vehicle is faulty, and if not, targeting the target The vehicle is being charged.

Optionally, after the process of determining, according to the acquired data information, whether the target vehicle is faulty, the method further includes:

Determining whether the fault of the target vehicle is a serious fault; if so, prohibiting charging of the target vehicle; wherein the severe fault includes the target vehicle power supply burnout and/or power ground fault.

Optionally, after the process of determining whether the fault of the target vehicle is a serious fault, the method further includes:

Determining whether the target vehicle is allowed to be charged with a preset power when the fault of the target vehicle is a non-critical fault; if yes, charging the target vehicle with the preset power; if not, prohibiting The target vehicle is charged; wherein the preset power is a power lower than a rated power of the target vehicle.

Optionally, the process of activating the wireless communication antenna includes:

The wireless communication antenna is activated after receiving a signal that the target vehicle reaches a preset charging position trigger.

Optionally, the process of charging the target vehicle includes:

Comparing an actual voltage for charging the target vehicle with a rated voltage of the target vehicle; if the value of the actual voltage is equal to a value of the rated voltage, charging the target vehicle with the rated voltage;

If the value of the actual voltage is less than the value of the rated voltage, the target vehicle is charged at the rated power.

Optionally, the smart charging method further includes:

After receiving the signal triggered by the target vehicle leaving the preset charging position, the activated wireless communication antenna stops charging the target vehicle.

Optionally, the smart charging method further includes:

Sending information of the charging device failure to the target vehicle; wherein the target vehicle determines, according to the received information, whether the charging device failure affects normal charging of the target vehicle by the charging device, and if so, stops Charging is performed by the charging device.

Optionally, the smart charging method further includes:

And using the wireless communication antenna to send charging data information to the preset terminal, so that the preset terminal remotely monitors a charging process of the target vehicle.

Correspondingly, the present invention also provides an intelligent charging system applied to a charging device, including:

a voltage judging module, configured to obtain a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage;

a charging module, configured to: when the grid voltage is within a preset working voltage range, use an activated wireless communication antenna to acquire data information of the target vehicle, and determine, according to the acquired data, whether the target vehicle is faulty, and if not, The target vehicle is charged.

The invention also provides a charging device, comprising a voltage judging module, a memory, a processor and a charging module; wherein

The voltage judging module is configured to obtain a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage;

The memory is configured to acquire and store data information sent by the target vehicle;

The processor is configured to determine, by using the stored data information sent by the target vehicle, whether the target vehicle is faulty;

The charging module is configured to charge the target vehicle when the target vehicle is non-faulty.

The present invention also provides a computer readable storage medium having a smart charging program stored thereon, the smart charging program being executed by a processor to implement the steps of the smart charging method as described above.

It can be seen that the smart charging method provided by the present invention completes the communication between the target vehicle and the charging device through the wireless communication antenna, confirms the state information of the vehicle and the charging device in advance, and improves the reliability of intelligent charging of the target vehicle.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can obtain other drawings according to the provided drawings without any creative work.

1 is a schematic diagram of charging logic of a smart charging method in the prior art;

2 is a flowchart of a smart charging method according to an embodiment of the present invention;

3 is a flowchart of another smart charging method according to an embodiment of the present invention;

4 is a schematic structural diagram of hardware of an intelligent charging method according to an embodiment of a smart charging method according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of charging logic of a smart charging method according to an embodiment of an intelligent charging method according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a schematic diagram of a vehicle bowing operation over-station according to an embodiment of an intelligent charging method according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an intelligent charging system according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention discloses a smart charging method, as shown in FIG. 2, comprising:

Step S11: Acquire a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage.

Wherein, after the target vehicle enters the charging station, the pantograph of the roof is in contact with the power grid, so that the charging device obtains the grid voltage of the power supply. It should be noted that the preset working voltage is set by the user according to requirements. Generally, the preset working voltage ranges from 360V to 900V. Of course, if the user has other range of voltage requirements, you can set it as needed.

It should be further noted that the above target vehicles include, but are not limited to, electric vehicles, including but not limited to trams, energy storage trolley buses, pure electric buses, and electric vehicles. The charging device is usually a ground charging device, and of course, other forms of charging device, if necessary.

Step S12: If the grid voltage is within the preset working voltage range, the activated wireless communication antenna is used to acquire the data information of the target vehicle, and the target vehicle is determined to be faulty according to the acquired data information, and if not, the target vehicle is charged. .

The process of activating the wireless communication antenna is: activating the wireless communication antenna after receiving the signal triggered by the target vehicle reaching the preset charging position. It should be noted that the wireless communication antenna includes a vehicle-mounted wireless communication antenna and a ground wireless communication antenna; activation of the wireless communication antenna means that the target vehicle and the charging device establish a connection for communication.

According to the obtained data information, it is judged whether the target vehicle is faulty. If the target vehicle has no fault, the target vehicle is charged; if the target vehicle is faulty, it is necessary to determine whether the target vehicle fault is a serious fault, if the target vehicle fault is serious In case of failure, the target vehicle is prohibited from being charged, and the charging device directly returns to the standby state; wherein, the serious fault includes but is not limited to the target vehicle power supply burnout, power supply ground fault, etc.; it can be understood that the definition of the serious fault can be based on actual conditions. Demand increases and decreases.

When the fault of the target vehicle is a non-critical fault, it is determined whether the target vehicle is allowed to be charged with the preset power, and if so, the target vehicle is charged with the preset power; if not, the target vehicle is prohibited from being charged; Set the power to be lower than the rated power of the target vehicle.

It should be further noted that the above process of charging the target vehicle includes:

Comparing the actual voltage for charging the target vehicle with the rated voltage of the target vehicle; if the value of the actual voltage is equal to the value of the rated voltage, charging the target vehicle with the rated voltage;

It can be seen that the smart charging method provided by the embodiment of the present invention completes the communication between the target vehicle and the charging device through the wireless communication antenna, and uses the state information of the vehicle and the charging device to confirm the safety and reliability of the smart charging of the target vehicle. Sex.

Another embodiment of the present invention further discloses an intelligent charging method, as shown in FIG. 3, including:

Step S21: Obtain a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage.

Wherein, after the target vehicle enters the charging station, the pantograph of the roof is in contact with the power grid, so that the charging device obtains the grid voltage of the power supply. It should be noted that the preset working voltage is set by the user according to requirements. Generally, the preset working voltage ranges from 360V to 900V. Of course, if the user has other range of voltage requirements, it can be set as needed.

Step S22: If the grid voltage is within the preset working voltage range, use the activated wireless communication antenna to acquire the data information of the target vehicle, and determine whether the target vehicle is faulty according to the acquired data information, and if not, charge the target vehicle. .

It should be further explained that the process of charging the target vehicle includes:

Step S23: After receiving the signal triggered by the target vehicle leaving the preset charging position by using the activated wireless communication antenna, stopping charging the target vehicle.

It should be noted that the occurrence of the target vehicle leaving the preset charging position may be a sudden emergency, requiring the target vehicle to leave the preset charging position.

In order to avoid the security accident caused by the sudden failure of the charging device during the charging process, the embodiment of the present invention further includes:

The wireless communication antenna of the charging device transmits information of the charging device failure to the target vehicle; wherein the target vehicle determines, according to the received information, whether the charging device failure affects the charging device to normal charging of the target vehicle, and if so, stops charging by the charging device.

It can be understood that if no, that is, the charging device failure does not affect the normal charging of the target vehicle by the charging device, the charging is continued.

In order to achieve remote monitoring of the target vehicle charging process, the embodiment of the present invention further includes:

The wireless communication antenna is used to send charging data information to the preset terminal, so that the preset terminal remotely monitors the charging process of the target vehicle.

It should be noted that the vehicle information is received by the wireless antenna, and the information is sent to the background. In the case of line congestion, the front and rear vehicles are reasonably charged by the ground charging device to avoid line congestion. For example, when the previous car enters the station, if the request information is received, the voltage of the latter car is lower, and the station needs to be charged. The former car chooses to pass the station, that is, it does not charge, and the remaining car is reserved enough. Charging time.

Specifically, the terminal can monitor the charging parameter during charging, and can send the warning information to the operation monitoring background, so as to timely check and repair the vehicle or the line. For example, when the charging device uses a constant current to charge the vehicle power supply of the same parameter, the power supply rising slope should be substantially the same. If the voltage slope rises abnormally, the power supply capacity abnormality fault or the line leakage or grounding failure can be determined. Taking a supercapacitor battery as an example, I is the charging current, Δt is the charging time, C is the capacitance capacity, and ΔU is the rising value of the capacitor voltage, where I×Δt=C×ΔU, then the voltage rising slope λ=△ U/△t=I/C, since I and C are both constant values, the voltage rise slope λ is also a constant value. If a voltage rises abnormally when a certain train is charging, the ground charging device can judge that the vehicle or the line is faulty. , immediately stop charging and inform the vehicle and the preset terminal through the wireless communication module.

Embodiments of the present invention also provide a specific implementation manner of an intelligent charging method. 4 is a hardware structure diagram corresponding to a smart charging method in a specific implementation manner of an intelligent charging method according to an embodiment of the present invention, including:

The vehicle energy storage power source transmits its own voltage, temperature, grounding state and fault information to the target vehicle through the communication network with the vehicle. The target vehicle will transmit the information received from each system of the energy storage power source to the vehicle wireless communication control through identification and selection. The module, the wireless communication control module processes the information and transmits it to the ground device through the in-vehicle wireless communication antenna. It should be noted that the vehicle energy storage power supply can increase other systems in the vehicle according to actual needs.

After receiving the wireless communication information of the vehicle, the ground wireless communication antenna transmits the information to the ground wireless communication control module, and the ground charging device determines and processes the received data according to the communication protocol, thereby determining whether to perform charging, power reduction or the like.

In the specific embodiment, the charging logic system has bidirectionality. Similarly, the ground charging device sends its abnormal state information or fault to the vehicle through the communication network, and the vehicle can select whether to charge or lower the pantograph directly over the station. .

FIG. 5 is a schematic diagram of charging logic according to an embodiment of the present invention. When the vehicle enters the station, the ground charging device first determines whether the grid voltage is within a specified voltage range; the grid voltage value is in a normal range, and then identifies whether the terrestrial wireless antenna is activated, that is, whether to establish contact with the vehicle antenna, if activated, It indicates that the vehicle is in the station charging position; then it is judged whether the vehicle sends the ground charging device fault information, if there is no fault information, it is charged according to the rated power; when charging, if the ground wireless antenna receives the vehicle outbound signal, the ground charging The device immediately stops charging to prevent equipment damage caused by forced outbound during vehicle charging.

In FIG. 5, after the charging device is wirelessly awakened, if the vehicle reports sending a fault message to the ground wireless antenna, the charging device will judge the fault type and the severity of the fault according to the agreed communication protocol, such as the fault affecting the vehicle operation or There are serious faults that have serious safety hazards to equipment personnel, such as power supply burnout, power supply ground fault, etc. The charging device will prohibit charging and return directly to the standby state. If it is not a serious fault, the charging device will judge according to the type of fault. For example, the power supply of the parallel power supply has an open circuit fault, and the temperature of the vehicle energy storage power supply reaches the warning value. The charging device allows the power to be reduced for charging, thereby ensuring the normal operation of the vehicle to the garage for maintenance. .

In the charging mode, the ground charging device can perform corresponding judgment and response according to a predefined fault type and fault degree, and perform rated power charging, power reducing charging or prohibiting charging, thereby achieving the purpose of adaptively adjusting charging, and ensuring safety. Under the premise of charging, the reliability of smart charging is maximized.

As shown in Figure 6, the vehicle's inbound logic is when the ground charging device fails. Because the roof of the energy storage type tram has been in the state of rising bow for a long time, when the vehicle enters the station, if the ground charging equipment has a short circuit and other faults, the ground fault will cause equipment failure or safety risk on the vehicle. The smart charging method of the invention has a two-way monitoring function. When the ground charging device fails, the ground fault information can be transmitted to the vehicle through the ground wireless communication antenna, and after receiving the ground fault information, the vehicle will identify and make the fault information. Corresponding response, if the fault information affects the normal charging of the vehicle or has the risk of causing the vehicle equipment to fail, the vehicle will automatically lower the pantograph into the station, and wait for the passenger to get on and off the vehicle, and then directly exit the station to the next station.

In addition, the intelligent charging method of the invention also has an intelligent monitoring function, and by monitoring the charging parameters during charging, the warning information can be sent to the operation monitoring background, so that the vehicle or the line can be inspected and repaired in time. For example, when the charging device uses a constant current to charge the vehicle power supply of the same parameter, the power supply rising slope should be substantially the same. If the voltage slope rises abnormally, the power supply capacity abnormality fault or the line leakage or grounding failure can be determined. Taking a supercapacitor battery as an example, I is the charging current, Δt is the charging time, C is the capacitance capacity, ΔU is the capacitor voltage rising value, I×Δt=C×ΔU, then the voltage rising slope λ=△U/ △t=I/C, since I and C are both constant values, the voltage rise slope λ is also a constant value. If a voltage rises abnormally when a certain train is charging, the ground charging device can judge that the vehicle or the line is faulty. Stop charging and inform the vehicle and the operation backend via the wireless communication module.

Correspondingly, the present invention also provides an intelligent charging system, which is applied to a charging device, as shown in FIG. 7, and includes:

The voltage judging module 11: obtaining the grid voltage of the power supply, and determining whether the grid voltage is a range of the preset working voltage;

The charging module 12: if the grid voltage is within a preset working voltage range, using the activated wireless communication antenna, acquiring data information of the target vehicle, determining whether the target vehicle is faulty according to the acquired data, and if not, performing the target vehicle Charging.

The embodiment of the invention further provides a charging device, comprising a voltage determining module, a memory, a processor and a charging module; wherein

a memory for acquiring and storing data information sent by the target vehicle;

a processor, configured to determine whether the target vehicle is faulty by using the stored data information of the target vehicle;

The embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores a smart charging program, and the smart charging program is implemented by the processor to implement the steps of the smart charging method.

Finally, it should also be noted that in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. There is any such actual relationship or order between operations. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The smart charging method, system, device and computer readable storage medium provided by the present invention are described in detail above. The principles and embodiments of the present invention are described in the following. The description of the above embodiment is only used for the description. To help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scopes. It should not be construed as limiting the invention.

Claims

An intelligent charging method applied to a charging device, comprising:

Obtaining a grid voltage of the power supply, and determining whether the grid voltage is a range of a preset working voltage;

If the grid voltage is within a preset operating voltage range, using the activated wireless communication antenna, acquiring data information of the target vehicle, and determining, according to the acquired data information, whether the target vehicle is faulty, and if not, targeting the target The vehicle is being charged.
The smart charging method according to claim 1, wherein the process of determining whether the target vehicle is faulty according to the acquired data information further comprises:

Determining whether the fault of the target vehicle is a serious fault; if so, prohibiting charging of the target vehicle; wherein the severe fault includes the target vehicle power supply burnout and/or power ground fault.
The smart charging method according to claim 2, wherein the determining whether the fault of the target vehicle is a serious fault further comprises:

Determining whether the target vehicle is allowed to be charged with a preset power when the fault of the target vehicle is a non-critical fault; if yes, charging the target vehicle with the preset power; if not, prohibiting The target vehicle is charged; wherein the preset power is a power lower than a rated power of the target vehicle.
The smart charging method according to claim 1, wherein the process of activating the wireless communication antenna comprises:

The wireless communication antenna is activated after receiving a signal that the target vehicle reaches a preset charging position trigger.
The smart charging method according to claim 1, wherein the charging the target vehicle comprises:

Comparing an actual voltage for charging the target vehicle with a rated voltage of the target vehicle; if the value of the actual voltage is equal to a value of the rated voltage, charging the target vehicle with the rated voltage;

If the value of the actual voltage is less than the value of the rated voltage, the target vehicle is charged at the rated power.
The smart charging method according to claim 5, further comprising:

After receiving the signal triggered by the target vehicle leaving the preset charging position, the activated wireless communication antenna stops charging the target vehicle.
The smart charging method according to claim 5, further comprising:

Sending information of the charging device failure to the target vehicle; wherein the target vehicle determines, according to the received information, whether the charging device failure affects normal charging of the target vehicle by the charging device, and if so, stops Charging is performed by the charging device.
The smart charging method according to any one of claims 1 to 7, further comprising:

And using the wireless communication antenna to send charging data information to the preset terminal, so that the preset terminal remotely monitors a charging process of the target vehicle.
A smart charging system applied to a charging device, comprising:

a voltage judging module, configured to obtain a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage;

a charging module, configured to: if the grid voltage is within a preset working voltage range, use an activated wireless communication antenna to acquire data information of the target vehicle, and determine, according to the acquired data, whether the target vehicle is faulty, and if not, then The target vehicle is charged.
A charging device, comprising: a voltage determining module, a memory, a processor, and a charging module; wherein

The voltage judging module is configured to obtain a grid voltage of the power supply, and determine whether the grid voltage is a range of a preset working voltage;

The memory is configured to acquire and store data information sent by the target vehicle;

The processor is configured to determine, by using the stored data information sent by the target vehicle, whether the target vehicle is faulty;

The charging module is configured to charge the target vehicle when the target vehicle is non-faulty.
A computer readable storage medium, wherein the computer readable storage medium stores a smart charging program, and the smart charging program is executed by a processor to implement the intelligent device according to any one of claims 1 to 8. The steps of the charging method.