CN205160154U - Charging control system of electric automobile - Google Patents

Abstract

The utility model provides a charging control system of electric automobile belongs to the electric automobile charging control technology field, control box on electric automobile charges controlling means and cable, the power end connector assembly of control box is used for the electrical power unit of power supply on the cable, the automobile of control box charges the end plug through the on -vehicle chargeable call group link that charges machine and electric automobile on the cable, be equipped with a bluetooth module on the cable in the control box, last the 2nd bluetooth module that is equipped with of electric automobile, the 2nd bluetooth module with electric automobile charges controlling means and connects, a bluetooth module with the 2nd bluetooth module wireless connection. The utility model provides a charging control system of electric automobile has realized on the cable charge controlling means's the communication of control box and electric automobile, has acquireed charging state of battery's accurate information effectively from the vehicle end to the remote control to the electric automobile charging process has further been realized.

Description

An electric vehicle charging control system

technical field

The utility model relates to the technical field of electric vehicle charging control, in particular to an electric vehicle charging control system.

Background technique

At present, the use of electric vehicles has not been popularized, and AC charging control boxes on cables as supporting equipment for charging electric vehicles are also rare. In the existing electric vehicle charging mode 2, the charging of the electric vehicle is generally controlled by the control box on the cable. The cable control box determines the current charging state of the electric vehicle by collecting the voltage and current parameters in the charging circuit, and performs corresponding control operations according to the current charging state. This control method lacks the data interaction between the control box on the cable and the electric vehicle, and the control box on the cable cannot obtain accurate information on the charging state of the rechargeable battery pack of the electric vehicle, thereby affecting the accuracy of the charging control of the electric vehicle.

Utility model content

The purpose of the utility model is to provide an electric vehicle charging control system, which realizes the data interaction between the control box on the cable and the electric vehicle, so as to effectively improve the accuracy of the electric vehicle charging control.

In the first aspect, the utility model provides an electric vehicle charging control system, comprising: an electric vehicle charging control device and a cable control box, the power terminal plug of the cable control box is connected to a power supply device for power supply, the The car charging terminal plug of the control box on the cable is connected with the rechargeable battery pack of the electric vehicle through the vehicle charger, the first bluetooth module is arranged in the control box on the cable, and the second bluetooth module is arranged on the electric car, so The second bluetooth module is connected with the electric vehicle charging control device, and the first bluetooth module is wirelessly connected with the second bluetooth module.

In combination with the first aspect, the present utility model also provides a first possible implementation manner of the first aspect, wherein the cable control box includes a control module and a switch module, the first Bluetooth module is connected to the control module, The switch module includes a first connection end, a second connection end and a control end, the first connection end is connected to the power supply end plug, the second connection end is connected to the car charging end plug, the The control terminal is connected with the control module.

In combination with the first possible implementation of the first aspect, the utility model also provides a second possible implementation of the first aspect, wherein the electric vehicle charging control system further includes a monitoring device and user terminal equipment, and the cable The upper control box is provided with a remote communication module, the remote communication module is connected to the control module, the monitoring device is coupled to the remote communication module, and the user terminal equipment is coupled to the monitoring device.

With reference to the second possible implementation manner of the first aspect, the present invention further provides a third possible implementation manner of the first aspect, wherein the remote communication module is coupled to the user terminal device.

In combination with the first possible implementation manner or the second possible implementation manner or the third possible implementation manner of the first aspect, the present utility model also provides a fourth possible implementation manner of the first aspect, wherein the on-cable control The box also includes a clock module connected to the control module.

In combination with the fourth possible implementation manner of the first aspect, the present utility model also provides a fifth possible implementation manner of the first aspect, wherein the cable control box further includes a charging state indicating module, and the charging state indicating module Connect with the control module.

With reference to the fifth possible implementation manner of the first aspect, the present invention further provides a sixth possible implementation manner of the first aspect, wherein the charging state indicating module includes an LED indicating circuit or a liquid crystal display circuit.

In combination with the sixth possible implementation of the first aspect, the utility model also provides a seventh possible implementation of the first aspect, wherein the cable control box further includes a power collection module, and the input of the power collection module The terminal is directly connected or coupled to the plug of the power supply terminal, and the output terminal of the power collection module is connected to the control module.

In combination with the seventh possible implementation manner of the first aspect, the present invention also provides an eighth possible implementation manner of the first aspect, wherein the electricity collection module includes a current detection sensor and a voltage detection sensor, and the current detection sensor The input end of the voltage detection sensor is connected to the plug of the power end by coupling, the input end of the voltage detection sensor is connected to the plug of the power end by limiting current, and the output ends of the current detection sensor and the voltage detection sensor are respectively connected to the control module.

With reference to the seventh possible implementation manner of the first aspect, the present invention further provides a ninth possible implementation manner of the first aspect, wherein the power collection module includes a metering chip.

The electric vehicle charging control system provided by the utility model establishes data interaction with the second Bluetooth module installed in the electric vehicle through the first bluetooth module, realizes the communication between the cable control box and the electric vehicle charging control device, and effectively transfers data from the vehicle Accurate information on the charging status of the battery is obtained at the terminal, so that the control box on the cable can control the charging of the electric vehicle more accurately.

Further, the cable control box establishes data interaction with the user terminal equipment through the remote communication module and the monitoring device to form a remote charging control system, and reports the accurate information of the current battery charging state obtained by the control module from the vehicle to the monitoring device. The owner and user can access the monitoring device to know the charging status of the battery of the electric vehicle in time without being present, and send an external control command to the cable control box through the monitoring device, which effectively facilitates the owner and user to check the charging status of the electric vehicle. management and control.

Other features and advantages of the present invention will be set forth in the following description, and partly become apparent from the description, or can be understood by implementing the embodiments of the present invention. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts. The above and other purposes, features and advantages of the present utility model will be more clearly shown by the accompanying drawings. Like reference numerals designate like parts throughout the drawings. The accompanying drawings are not intentionally scaled and drawn according to the actual size, and the emphasis is on showing the gist of the present utility model.

Fig. 1 shows a system block diagram of a charging control system for an electric vehicle provided by an embodiment of the present invention;

Fig. 2 shows a schematic diagram of a data interaction environment of an electric vehicle charging control system provided by an embodiment of the present invention;

Fig. 3 shows a module block diagram of an on-cable control box of an electric vehicle charging control system provided by an embodiment of the present invention.

Among them, the reference signs are respectively:

On-cable control box 100; control module 110; first bluetooth module 120; switch module 130; remote communication module 140; power collection module 150; clock module 160; Plug over-temperature detection module 183 ; PWM signal output module 191 ; PWM signal detection module 192 ; electric vehicle charging control device 200 ; monitoring device 300 ; user terminal equipment 400 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The embodiment of the utility model provides an electric vehicle charging control system, including: an electric vehicle charging control device 200 and an on-cable control box 100, the power terminal plug of the on-cable control box 100 is connected to a power supply device for power supply, the The car charging terminal plug of the control box 100 on the cable is connected with the rechargeable battery pack of the electric vehicle through the vehicle charger. The control box 100 on the cable is provided with a first Bluetooth module 120, and the electric vehicle is provided with a second Bluetooth module, the second Bluetooth module is connected to the electric vehicle charging control device 200, and the first Bluetooth module 120 is wirelessly connected to the second Bluetooth module, thereby realizing the connection between the electric vehicle charging control device 200 and the cable control The wireless communication of the box 100 is shown in FIG. 1 .

When the cable control box 100 is powered on, the electric vehicle charging control device 200 obtains the charging state information of the current rechargeable battery pack through the battery management system of the electric vehicle and transmits it to the second Bluetooth module. The second Bluetooth module sends the charging status information to the first Bluetooth module 120 in the cable control box 100 through the car charging terminal plug of the cable control box 100 . The data processing and executing components in the cable control box 100 perform corresponding operations according to the charging status information acquired by the first Bluetooth module 120 . For example, the first Bluetooth module 120 may use a Bluetooth chip with a model number of BC417143B.

Preferably, the cable control box 100 also includes a control module 110 and a switch module 130, the first Bluetooth module 120 is connected to the control module 110, and the switch module 130 includes a first connection terminal, a second connection terminal, and a second connection terminal. terminal and a control terminal, the first connection terminal is connected to the plug of the power supply terminal, the second connection terminal is connected to the plug of the vehicle charging terminal, and the control terminal is connected to the control module 110 . The first Bluetooth module 120 converts the acquired charging state information into a data form recognizable by the control module 110 and sends it to the control module 110, and the control module 110 drives the switch module 130 to perform corresponding operations according to the charging state information, for example, when controlling The charging status information received by the module 110 is that when the rechargeable battery pack is fully charged, it sends a stop charging command to the control terminal of the switch module 130, and disconnects the first connection terminal and the second connection terminal, thereby disconnecting the charging drive. The car's charging circuit stops charging.

The electric vehicle charging control system provided by the embodiment of the utility model realizes the data interaction between the electric vehicle charging control device 200 and the cable control box 100 through the first bluetooth module 120 and the second bluetooth module, and effectively obtains the battery from the vehicle end. Accurate information on the charging status, so that the cable control box 100 can more accurately control the charging of the electric vehicle.

In addition, in order to further facilitate the management and control of the electric vehicle charging process by vehicle owners and users, the electric vehicle charging control system also has a remote communication function. The specific implementation method can be preferably as follows: the embodiment of the utility model also includes a monitoring device 300 and a user terminal device 400, and a remote communication module 140 is arranged in the cable control box 100, and the remote communication module 140 is connected to the control module 110, and the monitoring device 300 is coupled with the remote communication module 140, and the user terminal equipment 400 is coupled with the monitoring device 300, so as to realize the communication between the cable control box 100, the monitoring device 300 and the user terminal equipment 400, as shown in FIG. 1 .

As shown in Figure 2, the remote communication module 140 of the cable control box 100 can access the mobile communication network through the public mobile communication base station, and communicate with the server. Therefore, the monitoring device 300 can access the public network and communicate with the remote through the server. The module 140 communicates so that remote data interaction can be realized between the cable control box 100 and the monitoring device 300 , for example, the monitoring device 300 can access the public network through a router. At the same time, the user terminal equipment 400 can also access the mobile communication network through the public mobile communication base station, and communicate with the monitoring device 300 through the server, so that remote data interaction between the monitoring device 300 and the user terminal equipment 400 can be realized.

After the cable control box 100 is powered on, the first Bluetooth module 120 obtains the battery charging status information provided by the electric vehicle charging control device 200, and sends it to the control module 110, and the control module 110 reports the charging status information through the remote communication module 140 To the monitoring device 300. Further, the vehicle owner user can access the monitoring device 300 through the user terminal device 400 installed with application software, obtain the charging status information, and send corresponding control instructions to the monitoring device 300 according to the charging status information, and the monitoring device 300 will The control command is sent to the remote communication module 140 through the server, so that the control module 110 receives the control command and drives the switch module 130 to perform corresponding operations. Of course, the first Bluetooth module 120 can also be used to obtain the working status information of other equipment on the vehicle side and send it to the control module 110. The control module 110 reports the working status information of other equipment to the monitoring device 300 through the remote communication module 140. The user terminal device 400 obtains the working status information of the other devices. Wherein, the user terminal device 400 may be a smart phone, a tablet computer, and the like.

In the embodiment of the present utility model, on the basis of effectively obtaining accurate information of the charging state of the battery from the vehicle end through the first Bluetooth module 120 and the second Bluetooth module, the cable control box 100, the monitoring device 300 and the user terminal equipment 400 The formed remote control system effectively facilitates the owner and user to know the accurate charging status of the electric vehicle in time and make corresponding processing when they are far away from the charging site of the electric vehicle.

Certainly, the specific implementation manner that the electric vehicle charging control system has a remote communication function can also be: the remote communication module 140 is directly coupled with the user terminal equipment 400, that is, without the monitoring device 300, the user terminal equipment 400 communicates directly with the remote control box 100 over the cable. For example, the remote communication module 140 has a short message sending and receiving function, and can directly send the charging state information to the mobile phone of the car owner user in the form of a short message, and at the same time, can also receive the control instruction sent by the car owner user in the form of a short message, and the remote communication module 140 will The received short message containing the control instruction is converted into a data form recognizable by the control module 110 and sent to the control module 110, and the control module 110 drives the switch module 130 to perform corresponding operations according to the control instruction.

Wherein, the control module 110 may preferably be a single-chip microcomputer, of course, it may also be other chips with data processing functions such as DSP, ARM or FPGA. The remote communication module 140 is preferably a GPRS communication module, such as a DATA-6121 wireless transceiver module. The switch module 130 is an action actuator for starting charging or stopping charging, and may preferably be a relay, of course, may also be a combined controllable switch module such as a photoelectric coupling switch or a silicon controlled rectifier.

In the embodiment of the present invention, the cable control box 100 further includes a clock module 160, and the clock module 160 is connected to the control module 110, as shown in FIG. 3 . For example, the clock module 160 can use a clock chip DS1302. The car owner user can set the system time and timing on/off time through the user terminal device 400, such as a smart phone installed with APP, so that the user can perform remote timing charging, which is beneficial to the car owner user's control over the charging of the electric vehicle.

In order to make it convenient for car owners and users to know the charging state of the electric vehicle directly from the cable control box 100, in the embodiment of the present utility model, the cable control box 100 is also provided with a charging state indicating module 170, and the charging state indicating module 170 is connected with the charging state indicating module 170. The control module 110 is connected to indicate the current charging state of the electric vehicle. Preferably, the charging status indicator module 170 can be an LED indicating circuit, and displays the current charging status of the electric vehicle through a plurality of LED status indicators. light, fault light, and communication light. Of course, the charging state indicating module 170 may also be a liquid crystal display circuit, which directly displays the current charging state of the electric vehicle through the liquid crystal display.

In order to detect whether the voltage or current input to the electric vehicle is abnormal, the cable control box 100 also includes a power collection module 150, and the input terminal of the power collection module 150 is directly connected or coupled to the power supply plug. The output end of the power collection module 150 is connected to the control module 110 , as shown in FIG. 3 . In the embodiment of the present invention, the power collection module 150 may include a current detection sensor and a voltage detection sensor. The output ends of the current detection sensor and the voltage detection sensor are respectively connected to the control module 110 . The charging voltage and charging current parameters are collected by the current detection sensor and the voltage detection sensor respectively, and sent to the control module 110. The control module 110 compares the charging voltage with a preset voltage range and the charging current with a preset current range. Wherein, the control module 110 compares the charging voltage with the preset voltage range and the charging current with the preset current range mainly includes: before starting the charging and during the charging process, when the charging voltage is greater than the preset voltage range, start the overvoltage protection, Turn on the fault indicator light, and send an overvoltage fault code instruction to report to the monitoring device 300; when the charging voltage is lower than the preset voltage range, start the undervoltage protection, light the fault indicator light, and send an undervoltage fault code instruction to report to the monitoring device device 300. Similarly, if the charging current is greater than the preset short-circuit overcurrent protection point during the charging process, the short-circuit overcurrent protection will be activated immediately, the fault indicator light will be lit, and a short-circuit fault code indication will be issued and reported to the monitoring device 300; If the short-circuit over-current protection point is set but greater than the preset general over-current protection point, the delayed over-current protection will be activated, the charging will be disconnected after the preset time delay, the fault indicator light will be lit, and an over-current fault code will be issued to report to the Monitoring device 300 . The car owner user can access the monitoring device 300 to know the occurrence of charging abnormality and the cause of the abnormality in time, and perform manual intervention to avoid inconvenience caused by charging failure. Of course, the power collection module 150 can also be a power metering chip, such as ADE7758.

The cable control box 100 is also provided with a voltage conversion module, the input end of the voltage conversion module is connected to the power supply end plug, and the output end of the voltage conversion module can communicate with the control module 110, the first bluetooth module 120, and the remote communication module respectively. Module 140, clock module 160, power acquisition module 150 and other low-voltage power consumption modules are connected to convert the AC voltage at the power supply end into a voltage suitable for each low-voltage power consumption module, thereby providing power for each functional module in the cable control box 100. powered by.

In addition, in the embodiment of the utility model, the cable control box 100 also includes a grounding detection module 181, a leakage detection module 182, a pulse width modulation (PulseWidthModulation, PWM) signal output module, a PWM signal detection module 192 and a plug overtemperature detection module 183 .

The input terminal of the ground detection module 181 is connected to the ground wire of the power terminal plug of the control box 100 on the cable, and the output terminal of the ground detection module 181 is connected to the control module 110 for detecting the power terminal before the control box 100 on the cable starts charging. The grounding condition of the plug. For example, the grounding condition of the plug at the power supply end can be detected by measuring the grounding resistance between the working ground wire and the protective ground wire. The ground detection module 181 sends the ground detection signal to the control module 110, and the control module 110 judges whether the ground detection signal is abnormal. If the ground is abnormal, charging is prohibited, the fault indicator light is turned on, and a ground fault code is sent to the monitoring device 300. The owner user of the vehicle can know the occurrence of the ground fault in time by accessing the monitoring device 300 , and perform manual intervention to avoid problems caused by the ground fault.

The input end of the leakage detection module 182 is connected to the plug of the power supply, and the output end of the leakage detection module 182 is connected to the control module 110 for detecting the leakage situation before and during the charging process of the control box 100 on the cable. For example, a current transformer can be used to detect the current difference between the live wire and the neutral wire in the charging circuit. The leakage detection module 182 sends the leakage detection signal to the control module 110, and the control module 110 judges whether there is a leakage situation. When a leakage occurs, the leakage protection is started, the fault indicator light is driven to light, and charging is prohibited or interrupted when it is serious. Send out an electric leakage fault code instruction and report it to the monitoring device 300, and the owner user can access the monitoring device 300 to know the occurrence of the electric leakage fault in time, and perform human intervention to avoid problems caused by the electric leakage fault.

The input end of the PWM signal output module 191 and the output end of the PWM signal detection module 192 are connected with the control module 110 respectively, and the output end of the PWM signal output module 191 and the input end of the PWM signal detection module 192 are all connected with the car charging terminal plug. The PWM signal output module 191 is used to output the PWM signal to the electric vehicle. The PWM signal detection module 192 is based on the national standard GB/T20234.2-2011, and the power terminal plug of the control box 100 on the cable is connected to the power supply equipment for power supply. After the plug of the car charging terminal is connected to the charging socket of the vehicle, the state of the control pilot signal CP is detected to determine whether the connection between the plug of the car charging terminal on the cable control box 100 and the vehicle is normal. The control module 110 receives the state of the control pilot signal CP output by the PWM signal detection module 192, and judges the connection state of the car charging end plug on the cable control box 100 and the vehicle end. If it is abnormal, it reports to the monitoring device 300, and the car owner By accessing the monitoring device 300 , the user can know in time the occurrence of the charging connection abnormality and the cause of the abnormality, and perform human intervention to avoid problems caused by the charging connection failure.

The input end of the plug over-temperature detection module 183 is electrically isolated and in contact with the power end of the cable control box 100 to sense temperature changes, and the output end of the plug over-temperature detection module 183 is connected with the control module 110 for charging the electric vehicle. Check the temperature of the plug. For example, the plug over-temperature detection module 183 may include a temperature sensor, and the temperature sensor sends the collected plug temperature information to the control module 110, and the control module 110 processes and judges the plug temperature information. If the temperature rise exceeds the preset temperature value after a certain charging time due to the improper connection between the power supply end plug of the control box 100 on the cable and the socket of the power supply device, the control module 110 sends an instruction to start the over-temperature protection of the plug, and the drive fails. The indicator light is on, and a plug over-temperature fault code indication is issued, and reported to the monitoring device 300; when the temperature of the plug at the power supply end exceeds the preset temperature value and reaches the preset threshold, the control module 110 drives the switch module 130 to turn off charging, and also drives the fault The indicator light is on, and an indication of a plug over-temperature fault code is issued, and reported to the monitoring device 300 . The car owner user can know the occurrence of abnormal plug over-temperature in time by accessing the monitoring device 300 , and perform manual intervention to avoid problems caused by plug over-temperature.

In the embodiments provided by the present utility model, it should be understood that the disclosed modules can be implemented in other ways. The above-described embodiments are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some communication interfaces or modules, and may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. An electric vehicle charging control system, characterized in that it comprises: an electric vehicle charging control device and a control box on a cable, the power terminal plug of the control box on the cable is connected to a power supply device for power supply, and the control box on the cable The car charging terminal plug of the box is connected with the rechargeable battery pack of the electric car through the car charger, the first bluetooth module is arranged in the control box on the cable, the second bluetooth module is arranged on the electric car, and the second The bluetooth module is connected with the electric vehicle charging control device, and the first bluetooth module is wirelessly connected with the second bluetooth module. 2. The electric vehicle charging control system according to claim 1, wherein the cable control box includes a control module and a switch module, and the first bluetooth module is connected to the control module and the switch module includes The first connection terminal, the second connection terminal and the control terminal, the first connection terminal is connected to the power supply terminal plug, the second connection terminal is connected to the car charging terminal plug, and the control terminal is connected to the control terminal. module connection. 3. The electric vehicle charging control system according to claim 2, characterized in that it also includes a monitoring device and user terminal equipment, a remote communication module is provided in the cable control box, and the remote communication module is connected to the control The modules are connected, the monitoring device is coupled to the remote communication module, and the user terminal equipment is coupled to the monitoring device. 4. The electric vehicle charging control system according to claim 3, wherein the remote communication module is coupled with the user terminal equipment. 5. The electric vehicle charging control system according to any one of claims 2-4, wherein the cable control box further comprises a clock module, and the clock module is connected to the control module. 6 . The electric vehicle charging control system according to claim 5 , wherein the cable control box further comprises a charging state indicating module connected to the control module. 7 . 7. The electric vehicle charging control system according to claim 6, wherein the charging state indicating module comprises an LED indicating circuit or a liquid crystal display circuit. 8. The electric vehicle charging control system according to claim 7, wherein the cable control box further includes a power collection module, and the input end of the power collection module is directly connected to the power supply plug by current limiting or Coupling connection, the output terminal of the power collection module is connected with the control module. 9. The electric vehicle charging control system according to claim 8, wherein the electric quantity acquisition module includes a current detection sensor and a voltage detection sensor, the input end of the current detection sensor is coupled to the power supply end plug, and the The input end of the voltage detection sensor is connected to the plug of the power supply end for current limitation, and the output ends of the current detection sensor and the voltage detection sensor are respectively connected to the control module. 10. The electric vehicle charging control system according to claim 8, characterized in that, the power collection module includes a metering chip.