CN110460557B - Charging management method and device for electric vehicle, battery management system and electric vehicle - Google Patents
Charging management method and device for electric vehicle, battery management system and electric vehicle Download PDFInfo
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- CN110460557B CN110460557B CN201810425174.0A CN201810425174A CN110460557B CN 110460557 B CN110460557 B CN 110460557B CN 201810425174 A CN201810425174 A CN 201810425174A CN 110460557 B CN110460557 B CN 110460557B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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Abstract
The invention discloses a charging management method and device of an electric vehicle, a battery management system and the electric vehicle, wherein the method comprises the following steps: determining first identification information of a multi-packet message to be sent according to a first charging communication protocol preset by the electric vehicle, and sending the first identification information and first header data corresponding to the first identification information to charging equipment; judging whether a multi-packet permission message replied by the charging equipment is received or not; if not, determining second identification information of the multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and sending the second identification information and second header packet data corresponding to the second identification information to the charging equipment, wherein the priority levels of the first charging communication protocol and the second charging communication protocol are different. The method can effectively improve the compatibility of the electric vehicle, improves the charging applicability, is more convenient and faster, better ensures the reliability of the electric vehicle, and effectively improves the user experience.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a charging management method and device for an electric vehicle, a battery management system and the electric vehicle.
Background
In the related art, a Battery Management System (BMS) and a charging post need to perform charging communication via a charging communication protocol in order to charge a vehicle.
However, the charging communication protocols are various, and meanwhile, the standards of different types of charging communication protocols are different, the priorities of related packets are also different, and the communication protocols are often updated continuously, which easily causes the situation that the communication protocols of the vehicle and the charging device are not matched, so that the vehicle cannot be charged, the compatibility of the vehicle is poor, the applicability of the vehicle is low, the charging is very inconvenient, and the use experience of a user is seriously affected.
Disclosure of Invention
The present application is based on the recognition and discovery by the inventors of the following problems:
in the related art, a BMS (Battery Management System) and a charging device communicate and charge through a charging communication protocol, wherein the charging communication protocol includes multiple protocols, such as GBT 27930-.
However, because the standards of different charging communication protocols are different, and the priorities of related packets are also different, when the transmission data correspond to multiple packets, the problem that the transmission of the multiple packets of messages is incompatible with the reception protocol is often caused, for example, the charging device cannot recognize the multiple packets of messages sent by the BMS, the BMS cannot recognize the multiple packets of messages sent by the charging device, and the like, the electric vehicle is often required to find the matched charging device for charging, and the charging cannot be performed normally.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present invention is to provide a charging management method for an electric vehicle, which can effectively improve the compatibility of the electric vehicle, improve the charging applicability, be more convenient and faster, better ensure the reliability of the electric vehicle, and effectively improve the user experience.
A second object of the present invention is to provide a charging management device for an electric vehicle.
A third object of the present invention is to provide a battery management system.
A fourth object of the present invention is to provide an electric vehicle.
In order to achieve the above object, a first embodiment of the present invention provides a charging management method for an electric vehicle, including the following steps: determining first identification information of a multi-packet message to be sent according to a first charging communication protocol preset by the electric vehicle, and sending the first identification information and first header data corresponding to the first identification information to charging equipment; judging whether a multi-packet permission message replied by the charging equipment is received or not; if not, determining second identification information of a multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and sending the second identification information and second header packet data corresponding to the second identification information to the charging equipment, wherein the first charging communication protocol and the second charging communication protocol have different priority levels.
The charging management method of the electric vehicle, provided by the embodiment of the invention, can be compatible with various charging communication protocols to ensure that multiple messages are normally sent and received between a battery management system and charging equipment, and ensure that the electric vehicle is normally charged, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the charging management method is more convenient and faster, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
In addition, the charging management method of the electric vehicle according to the above embodiment of the present invention may further have the following additional technical features:
further, in an embodiment of the present invention, the method further includes: and if so, transmitting the sub-packet message with the charging equipment according to the first charging communication protocol.
Further, in an embodiment of the present invention, after determining second identification information of a multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and sending the second identification information and second header packet data corresponding to the second identification information to the charging device, the method further includes: judging whether a multi-packet permission message replied by the charging equipment is received or not; if so, performing packet message transmission with the charging equipment according to the second charging communication protocol, and recording and storing the identification information of the charging equipment and the second charging communication protocol information matched with the identification information.
Further, in an embodiment of the present invention, before the determining whether the multi-packet permission packet returned by the charging device is received, the method further includes: and waiting for receiving an allowed message fed back by the charging equipment within a preset time, wherein the preset time comprises at least one allowed message feedback period.
In order to achieve the above object, a second embodiment of the present invention provides a charging management device for an electric vehicle, including: the first sending module is used for determining first identification information of a multi-packet message to be sent according to a first charging communication protocol preset by the electric vehicle and sending the first identification information and first header data corresponding to the first identification information to charging equipment; the first judgment module is used for judging whether a multi-packet permission message replied by the charging equipment is received or not; the second sending module is configured to, when a multi-packet permission message replied by the charging device is not received, determine second identification information of the multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and send the second identification information and second header packet data corresponding to the second identification information to the charging device, where priority levels of the first charging communication protocol and the second charging communication protocol are different.
The charging management device of the electric vehicle, provided by the embodiment of the invention, can be compatible with various charging communication protocols to ensure that multiple messages are normally sent and received between a battery management system and charging equipment, and ensure that the electric vehicle is normally charged, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the charging management device is more convenient and faster, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
In addition, the charging management device for an electric vehicle according to the above embodiment of the present invention may further have the following additional technical features:
further, in an embodiment of the present invention, the apparatus further includes: and the first communication module is used for transmitting the sub-packet messages with the charging equipment according to the first charging communication protocol when receiving the multi-packet permission message replied by the charging equipment.
Further, in an embodiment of the present invention, the apparatus further includes: the second judgment module is used for judging whether a multi-packet permission message replied by the charging equipment is received or not after second identification information of the multi-packet message to be sent is determined according to a second charging communication protocol preset by the electric vehicle and the second identification information and second head packet data corresponding to the second identification information are sent to the charging equipment; and the second communication module is used for performing packet message transmission with the charging equipment according to the second charging communication protocol when receiving the multi-packet permission message replied by the charging equipment, and recording and storing the identification information of the charging equipment and the second charging communication protocol information matched with the identification information.
Further, in an embodiment of the present invention, the apparatus further includes: and the waiting module is used for waiting for receiving the permission message fed back by the charging equipment within a preset time before judging whether the multi-packet permission message replied by the charging equipment is received, wherein the preset time comprises at least one permission message feedback period.
In order to achieve the above object, a third embodiment of the present invention provides a battery management system, which includes the above charging management device for an electric vehicle. The battery management system can be compatible with various charging communication protocols to ensure that the normal sending and receiving of multiple messages between the battery management system and the charging equipment are carried out, and the normal charging of the electric vehicle is ensured, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the battery management system is more convenient and faster, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
In order to achieve the above object, a fourth aspect of the present invention provides an electric vehicle, including the above battery management system. This electric motor car can compatible multiple communication protocol that charges guarantee between battery management system and the battery charging outfit normally carry out the sending and receiving of many messages, guarantee the normal charge of electric motor car to effectively improve the compatibility of electric motor car, improve the suitability that charges, convenient and fast more guarantees the reliability of electric motor car better, effectively promotes the user and uses experience.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a message diagram according to the related art;
fig. 2 is another message diagram according to the related art;
fig. 3 is a flowchart of a charge management method of an electric vehicle according to an embodiment of the present invention;
fig. 4 is a flowchart of a charge management method of an electric vehicle according to an embodiment of the present invention; and
fig. 5 is a schematic structural diagram of a charging management device for an electric vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Before introducing a charging management method and apparatus for an electric vehicle, a battery management system and an electric vehicle, the drawbacks of the related art will be briefly introduced.
(1) The charging pile cannot identify the multi-packet message sent by the BMS.
As shown in fig. 1, the PCAN collects the quick charging port message, and after the charging pile sends CRM (1801F 4560001202020202020). The BMS starts to send the BRM, the BRM is a multi-packet message, the BMS sends a header packet (18EC56F 410290006 FF 000200) first, and after the charging pile receives the header packet sent by the BMS under normal conditions, the BMS multi-packet request is replied by the charging pile with the ID of 0X1CECF456(1939 recommendation), and the BMS sends a sub-packet next. However, as can be seen from the message, after the BMS sends out (18EC56F4), the charging pile still sends CRM all the time; (1801F456), from which it can be concluded that the charging post cannot recognize the ID sent by the BMS (18EC56F4), so the charging post will always assume that the BMS did not send a BRM, resulting in a handshake timeout.
(2) The BMS cannot recognize the multi-packet message sent by the charging pile.
As shown in fig. 2, after the charging pile sends CRM (1801F 4560001202020202020), the BMS starts sending BRM, the BRM is a multi-packet message, the BMS sends a header packet (18EC56F 410290006 FF 000200 notes that the 1 st byte is a control command byte, the request frame command byte is 0X 10, the 2 nd to 3 th bytes are the total number of packets to be sent next, the 4 th byte represents the first packet number to be sent next, the 5 bytes 0XFF, and the 6 th to 8 bytes are a PGN number) first, after receiving the header packet sent by the BMS, the charging pile shall reply the multi-packet request with ID 0X1CECF456(1939 recommendation), and the BMS sends a sub-packet next.
It can be seen from the fast charging message that after receiving the multi-packet request of the BMS, the charging pile replies with the multi-packet request with the ID:18ECF456, and the BMS program is written to receive the multi-packet request according to the ID 0X1CECF456, so that the BMS does not recognize the multi-packet allowed-to-be-sent message replied by the charging pile, and therefore does not send the content of the sub-packet next, which results in the BRM overtime and the normal charging failure.
When the standard national standard of GBT 27930 plus 2011 communication protocol between an off-board conductive charger and a battery management system of an electric vehicle is used for charging, the phenomenon that the standard of the BMS and the charger is different, so that normal charging cannot be performed frequently occurs. Some BMSs only calculate the multi-packet sending and receiving IDs according to the priority specified by the national standard GBT 27930 plus 2011 communication protocol between the off-board conductive charger and the battery management system of the electric automobile, but cannot only calculate the multi-packet sending and receiving IDs according to the sequence of SAEJ1939-21:2006 "normal charging on multi-packet send and receive IDs is calculated with priority specified by the protocol, otherwise, the BMS only follows SAEJ1939-21:2006, the ID for multi-packet transmission and reception is calculated with the priority specified by the protocol, and normal charging cannot be performed on a charging pile that calculates multi-packet transmission and reception IDs with only the priority specified by the national standard.
For the above reasons, embodiments of the present invention provide a charging management method and apparatus for an electric vehicle, a battery management system, and an electric vehicle.
A charge management method, an apparatus, a battery management system, and an electric vehicle for an electric vehicle according to embodiments of the present invention will be described below with reference to the accompanying drawings, and first, a charge management method for an electric vehicle according to embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 3 is a flowchart of a charge management method of an electric vehicle according to an embodiment of the present invention.
As shown in fig. 3, the charging management method of the electric vehicle includes the steps of:
in step S301, first identification information of a multi-packet message to be sent is determined according to a first charging communication protocol preset in the electric vehicle, and the first identification information and first header data corresponding to the first identification information are sent to the charging device.
It can be understood that, a first charging communication protocol preset by the electric vehicle may be a 1939 protocol or a national standard charging communication protocol, a person skilled in the art may set the first charging communication protocol according to an actual situation, which is not specifically limited herein, in addition, the identification information may be a first header tag ID, etc., the following first charging communication protocol takes the 1939 protocol and the first identification information as the first header tag ID as an example, first, the electric vehicle and the charging device are required to perform communication connection, a handshake packet sent by the charging device is acquired, and then the first header tag ID is sent to the charging device according to the 1939 protocol: 1CEC56F 4. The charging device may be a charging pile or other device capable of charging the electric vehicle, and those skilled in the art may select the charging device according to specific situations, which is not specifically limited herein.
In step S302, it is determined whether a multi-packet permission message returned by the charging device is received.
It can be understood that, at this time, the embodiment of the present invention determines whether a multi-packet permission packet fed back by the charging device according to the header packet data frame corresponding to the first identification information is received.
In an embodiment of the present invention, the method of an embodiment of the present invention further comprises: and if so, transmitting the sub-packet message with the charging equipment according to the first charging communication protocol.
It can be understood that after the vehicle receives the multi-packet permission message fed back by the charging device, normal charging and communication can be performed between the vehicle and the charging device.
In step S303, if not, determining second identification information of the multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and sending the second identification information and a second header packet corresponding to the second identification information to the charging device, where priority levels of the first charging communication protocol and the second charging communication protocol are different.
It is understood that, in the case that the electric vehicle and the charging device fail to communicate through the first charging communication protocol, the electric vehicle may be connected to communicate with the charging device again through the second charging communication protocol, and of course, the first charging communication protocol and the second charging communication protocol do not have a setting of which communication protocol is preferentially used, and the first communication protocol and the second communication protocol are specifically which communication protocol, which is not specifically limited herein. The first charging communication protocol and the second charging communication protocol are different communication protocols, that is, when the communication protocols are the same type of communication protocol but have different priorities, the communication protocols with different priorities are considered to be different communication protocols.
For example, the BMS and the charging pile communicate and charge according to the standard of GBT 27930-. The 2011 version of the standard specifies priority, data length, packet cycle, etc., and specifies a multi-packet (BRM) priority of 6. The national standard specifies that "transmitting 9 bytes or more of data between the BMS and the charger uses a transmission protocol function. Connection initialization, data transfer, connection closure should follow the provisions of 5.4.7 and 5.10 message transfer in SAEJ1939-21: 2006. The priority of multi-packet transmission specified by the SAEJ1939-21:2006 standard is 7, if the BMS calculates the ID according to the priority 6 specified by the national standard, the charging pile calculates the ID according to the priority 7 specified by the SAEJ1939-21:2006 standard; or the BMS calculates the ID according to the priority 7 specified by SAEJ1939-21:2006, and the charging pile calculates the ID according to the priority 6 specified by the national standard, so that communication failure is caused, and the packet message is reported to be out of date and cannot be charged normally. Therefore, the communication protocols with different priorities are different communication protocols, and the embodiment of the invention effectively ensures the compatibility of the electric vehicle by being compatible with various charging communication protocols, is convenient and quick, and greatly improves the use experience of users.
Further, in an embodiment of the present invention, after determining second identification information of a multi-packet message to be sent according to a second charging communication protocol preset in the electric vehicle, and sending the second identification information and second header packet data corresponding to the second identification information to the charging device, the method further includes: judging whether a multi-packet permission message replied by the charging equipment is received or not; if so, performing packet message transmission with the charging equipment according to a second charging communication protocol, and recording and storing the identification information of the charging equipment and second charging communication protocol information matched with the identification information.
It can be understood that after the vehicle receives the multiple packets of permission messages fed back by the charging device, normal charging and communication can be performed between the vehicle and the charging device, at this time, the vehicle records and stores an identifier of the charging device, such as an ID of the charging device, or a number of the charging device, so that charging communication is performed directly through the recorded charging communication protocol when the charging device is charged next time. Therefore, time can be effectively saved, the charging convenience of the electric vehicle is improved, the reliability of the electric vehicle is effectively improved, the use experience of a user is greatly improved, and the method is simple and easy to realize.
It should be noted that the first communication protocol is a communication protocol that uses a large number of communication protocols, and most of the charging devices also use the first communication protocol, so that when the electric vehicle can normally communicate with the charging device through the first communication, the charging device does not need to be recorded, or the charging device can be recorded, so that the electric vehicle can be directly charged when being charged on the charging device next time, and a person skilled in the art can set the first communication protocol according to actual situations, which is not specifically limited herein. And the second communication protocol is the communication protocol that the utilization ratio is not high, consequently, after electric motor car and battery charging outfit can pass through the second communication protocol communication success, can take notes this battery charging outfit to next time charges on this battery charging outfit, thereby can effectively save time, improve the convenience that the electric motor car charges, effectively improve the reliability of electric motor car, promote user's use greatly and experience, simple easy realization.
For example, the second charging communication protocol is a national standard communication protocol, and the electric vehicle calculates the header packet ID of the BRM according to the national standard: 18EC56F4, and send for battery charging outfit, if fill electric pile, receive many packets of permission messages of feedback behind the first packet data frame that the electric motor car sent at charging pile, then this moment, the electric motor car with fill electric pile and can carry out charging communication through national standard communication protocol, and the ID that fills electric pile is recorded, if B, the record of storage is for filling electric pile B, the communication protocol that charges is national standard communication protocol, the electric motor car is next when should fill electric pile and charge, directly carry out charging communication through the communication protocol that charges of record, thereby can effectively save time, improve the convenience that the electric motor car charges, effectively improve the reliability of electric motor car, greatly promote user's use and experience, simple easy realization.
Further, in an embodiment of the present invention, before determining whether a multi-packet permission message returned by the charging device is received, the method further includes: and waiting for receiving an allowable message fed back by the charging equipment within a preset time, wherein the preset time comprises at least one allowable message feedback period.
It can be understood that, if the electric vehicle receives the feedback of the charging device within a preset time, such as within 20ms, the electric vehicle and the charging device can normally perform charging communication; if the feedback of the charging equipment is not received, the electric vehicle and the charging equipment cannot be compatible, and the electric vehicle cannot be charged on the charging equipment. If can't charge, then the vehicle can remind the user through the mode of reporting to the police, and battery charging outfit is incompatible, perhaps can remind the user through voice broadcast's mode, if "battery charging outfit is incompatible, can't charge", about reminding user's mode, do not do specific limitation here, through in time reminding the user to change battery charging outfit to can effectively promote user's use and experience.
In an embodiment of the present invention, as shown in fig. 4, taking a BRM multi-packet message in a handshaking phase as an example, after the BMS receives a handshaking message CRM sent by the charging pile, the BMS sends a BRM header packet, that is, requests to send a multi-packet, and the ID calculated according to the 1939 protocol: 1CEC56F4, after two periods of 20ms, judging whether a multi-packet permission message replied by a charging pile is received, namely, preparing to send the message, and firstly calculating the ID according to a 1939 protocol: 1CECF456 judging, if the message of the ID is not received, judging whether the ID calculated according to the national standard is received: 18ECF456, if not received, may determine that the charging post does not recognize the ID calculated by the 1939 protocol. The BMS sends the head packet ID of the BRM calculated according to the national standard: after 20ms in 18EC56F4, the embodiment of the present invention determines whether a multi-packet permission message replied by the charging pile is received, and if so, the BMS sends a BRM packet message, and sends an ID according to a 1939 protocol: 1CEB56F4, the sub-packet is 7 frames, after waiting for 100ms, judging whether a message ending response message of the charging pile is received, if not, the BMS sends an ID calculated according to a national standard protocol: 1CEB56F4 waits for 100ms, judges whether the message that fills electric pile is received and finishes to answer the message, if receive, carries out the communication of follow-up message according to the national standard to effectively improve the compatibility of vehicle electric motor car, improve the suitability that charges, convenient and fast more guarantees the reliability of vehicle electric motor car better, effectively promotes user and uses experience.
Further, the method of the embodiment of the invention is compatible with GBT 27930-: 2006 protocol multi-packet transport messages. BMS as SAEJ1939-21: after the protocol 2006 sends the head packet of the multi-packet message, the BMS sends the head packet of the multi-packet message according to the protocol GBT 27930-; the BMS receives the multi-packet permission message replied by the charging equipment, and the BMS firstly replies according to SAEJ1939-21:2006 protocol multi-packet message ID receiving, if the message can not be received in two periods, the BMS receives the multi-packet message ID according to the protocol GBT 27930-2015; and sending out the sub-packets according to the principle of the BMS, and after receiving the multi-packet receiving completion message replied by the charging equipment, completing the multi-packet sending of the frame.
To sum up, the embodiment of the invention comprises a BMS (battery management system), an off-board quick charging device, a battery pack and a vehicle-mounted direct current charging socket, and is characterized in that the battery pack is compatible with SAEJ1939-21:2006 and GBT 27930-.
According to the charging management method for the electric vehicle, provided by the embodiment of the invention, multiple charging communication protocols can be compatible to ensure that multiple messages are normally sent and received between a battery management system and charging equipment, and the normal charging of the electric vehicle is ensured, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the convenience and the rapidness are realized, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
Next, a charge management device for an electric vehicle according to an embodiment of the present invention will be described with reference to the drawings.
Fig. 5 is a schematic structural diagram of a charging management device for an electric vehicle according to an embodiment of the present invention.
As shown in fig. 5, the charging management device 10 for an electric vehicle includes: a first sending module 100, a first judging module 200 and a second sending module 300.
The first sending module 100 is configured to determine first identification information of a multi-packet message to be sent according to a first charging communication protocol preset in the electric vehicle, and send the first identification information and first header data corresponding to the first identification information to the charging device. The first determining module 200 is configured to determine whether a multi-packet permission message replied by the charging device is received. The second sending module 300 is configured to, when the multi-packet permission packet replied by the charging device is not received, determine second identification information of the multi-packet to be sent according to a second charging communication protocol preset by the electric vehicle, and send the second identification information and second header packet data corresponding to the second identification information to the charging device, where priority levels of the first charging communication protocol and the second charging communication protocol are different. The device 10 provided by the embodiment of the invention can effectively improve the compatibility of the electric vehicle, improves the charging applicability, is more convenient and faster, better ensures the reliability of the electric vehicle, and effectively improves the user experience.
Further, in one embodiment of the present invention, the apparatus 10 of the embodiment of the present invention further comprises: a first communication module. The first communication module is used for transmitting the sub-packet message with the charging equipment according to a first charging communication protocol when receiving the multi-packet permission message replied by the charging equipment.
Further, in one embodiment of the present invention, the apparatus 10 of the embodiment of the present invention further comprises: the second judgment module and the second communication module.
The second judging module is used for judging whether a multi-packet permission message replied by the charging equipment is received or not after the second identification information of the multi-packet message to be sent is determined according to a second charging communication protocol preset by the electric vehicle and the second identification information and second head packet data corresponding to the second identification information are sent to the charging equipment. The second communication module is used for performing packet message transmission with the charging equipment according to a second charging communication protocol when receiving the multi-packet permission message replied by the charging equipment, recording and storing the identification information of the charging equipment and the second charging communication protocol information matched with the identification information
Further, in one embodiment of the present invention, the apparatus 10 of the embodiment of the present invention further comprises: and waiting for the module. The waiting module is used for waiting for receiving the permission message fed back by the charging equipment within a preset time before judging whether the multi-packet permission message replied by the charging equipment is received, wherein the preset time comprises at least one permission message feedback period.
It should be noted that the foregoing explanation of the embodiment of the charging management method for an electric vehicle is also applicable to the charging management device for an electric vehicle of this embodiment, and is not repeated here.
According to the charging management device of the electric vehicle, provided by the embodiment of the invention, multiple charging communication protocols can be compatible to ensure that multiple messages are normally sent and received between a battery management system and charging equipment, and the normal charging of the electric vehicle is ensured, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the charging management device is more convenient and faster, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
In addition, the embodiment of the third aspect of the invention provides a battery management system, which comprises the charging management device of the electric vehicle. The battery management system can be compatible with various charging communication protocols to ensure that the normal sending and receiving of multiple messages between the battery management system and the charging equipment are carried out, and the normal charging of the electric vehicle is ensured, so that the compatibility of the electric vehicle is effectively improved, the charging applicability is improved, the battery management system is more convenient and faster, the reliability of the electric vehicle is better ensured, and the use experience of a user is effectively improved.
In addition, the fourth aspect embodiment of the invention provides an electric vehicle, which comprises the battery management system. This electric motor car can compatible multiple communication protocol that charges guarantee between battery management system and the battery charging outfit normally carry out the sending and receiving of many messages, guarantee the normal charge of electric motor car to effectively improve the compatibility of electric motor car, improve the suitability that charges, convenient and fast more guarantees the reliability of electric motor car better, effectively promotes the user and uses experience.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A charging management method of an electric vehicle is characterized by comprising the following steps:
determining first identification information of a multi-packet message to be sent according to a first charging communication protocol preset by the electric vehicle, and sending the first identification information and first header data corresponding to the first identification information to charging equipment;
judging whether a multi-packet permission message replied by the charging equipment is received or not; and
if not, determining second identification information of a multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and sending the second identification information and second header packet data corresponding to the second identification information to the charging equipment, wherein the first charging communication protocol and the second charging communication protocol have different priority levels.
2. The method for managing charging of an electric vehicle according to claim 1, further comprising:
and if so, transmitting the sub-packet message with the charging equipment according to the first charging communication protocol.
3. The method for managing charging of an electric vehicle according to claim 1, wherein after determining second identification information of a multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle and sending the second identification information and second header packet data corresponding to the second identification information to the charging device, the method further comprises:
judging whether a multi-packet permission message replied by the charging equipment is received or not;
if so, performing packet message transmission with the charging equipment according to the second charging communication protocol, and recording and storing the identification information of the charging equipment and the second charging communication protocol information matched with the identification information.
4. The method for managing charging of an electric vehicle according to claim 2 or 3, wherein before the determining whether the multi-packet permission message returned by the charging device is received, the method further comprises:
and waiting for receiving an allowed message fed back by the charging equipment within a preset time, wherein the preset time comprises at least one allowed message feedback period.
5. A charging management apparatus for an electric vehicle, comprising:
the first sending module is used for determining first identification information of a multi-packet message to be sent according to a first charging communication protocol preset by the electric vehicle and sending the first identification information and first header data corresponding to the first identification information to charging equipment;
the first judgment module is used for judging whether a multi-packet permission message replied by the charging equipment is received or not; and
the second sending module is configured to, when a multi-packet permission message replied by the charging device is not received, determine second identification information of the multi-packet message to be sent according to a second charging communication protocol preset by the electric vehicle, and send the second identification information and second header packet data corresponding to the second identification information to the charging device, where priority levels of the first charging communication protocol and the second charging communication protocol are different.
6. The charging management device for the electric vehicle according to claim 5, further comprising:
and the first communication module is used for transmitting the sub-packet messages with the charging equipment according to the first charging communication protocol when receiving the multi-packet permission message replied by the charging equipment.
7. The charging management device for the electric vehicle according to claim 5, further comprising:
the second judgment module is used for judging whether a multi-packet permission message replied by the charging equipment is received or not after second identification information of the multi-packet message to be sent is determined according to a second charging communication protocol preset by the electric vehicle and the second identification information and second head packet data corresponding to the second identification information are sent to the charging equipment;
and the second communication module is used for performing packet message transmission with the charging equipment according to the second charging communication protocol when receiving the multi-packet permission message replied by the charging equipment, and recording and storing the identification information of the charging equipment and the second charging communication protocol information matched with the identification information.
8. The charging management device for the electric vehicle according to claim 6 or 7, further comprising:
and the waiting module is used for waiting for receiving the permission message fed back by the charging equipment within a preset time before judging whether the multi-packet permission message replied by the charging equipment is received, wherein the preset time comprises at least one permission message feedback period.
9. A battery management system, comprising: the charging management device for an electric vehicle according to any one of claims 5 to 8.
10. An electric vehicle, comprising: the battery management system of claim 9.
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| CN201810425174.0A CN110460557B (en) | 2018-05-07 | 2018-05-07 | Charging management method and device for electric vehicle, battery management system and electric vehicle |
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| CN112291219B (en) | 2020-10-22 | 2023-06-13 | 格力博(江苏)股份有限公司 | Communication interaction method and system |
| CN116247755B (en) * | 2021-12-08 | 2024-01-16 | 华为技术有限公司 | Protocol information testing method, tester and storage medium |
| CN114537201A (en) * | 2021-12-31 | 2022-05-27 | 沙龙智行科技有限公司 | Vehicle charging method and device and vehicle |
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| CN101740837B (en) * | 2009-12-25 | 2012-01-04 | 天津清源电动车辆有限责任公司 | Control method for vehicle-mounted charge and quick charge of electric automobiles |
| CN102255113A (en) * | 2011-04-07 | 2011-11-23 | 广东省电力设计研究院 | Method and system for charging electric vehicle, charger and BMS (battery management system) communication module |
| GB2545922B (en) * | 2015-12-30 | 2017-12-27 | Hyperdrive Innovation Ltd | Battery management system |
| CN106740196B (en) * | 2016-12-12 | 2019-08-09 | 国网北京市电力公司 | Charging method and device for DC charging equipment |
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