CN110341616B - Electronic and electrical architecture and data management method for intelligent electric automobile - Google Patents
Electronic and electrical architecture and data management method for intelligent electric automobile Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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Abstract
The invention discloses an electronic electric framework and a data management method for an intelligent electric vehicle, wherein a data warehouse domain comprising a data analysis module DPM, a data request analysis module DRPM, a data storage unit and a 5G module is designed based on the existing centralized electronic electric framework, and the DPM and the DRPM are subjected to independent structural design, wherein DPM1 and DPM2 are used for quickly matching data streams generated by each system/unit/module, and the DRPM is used for carrying out safety certification on an external node; the data storage unit is used for classifying and storing the data analyzed by the DPM and responding to the extraction of the DRPM on six types of data; the 5G module is used for communication and data transmission with an external node. The invention can improve the safety and the real-time property of vehicle-mounted data transmission in the future intelligent networking environment.
Description
Technical Field
The invention belongs to the field of electronic and electric architectures of new energy automobiles, and particularly relates to an electronic and electric architecture and a data management method for an intelligent electric automobile.
Background
The electric automobile is favored by the new momentum of the traditional whole automobile factory and the Internet automobile construction again along with the implementation of the national six-emission standard and the double-point policy, and the electric automobile becomes more intelligent along with the high-speed development of intelligent driving and 5G technology. The intelligent electric automobile is no longer an independent individual under the environment of intelligent network connection, is also a node in the network, and takes responsibility for sending road danger information and maintaining the safe operation of the whole network. Obviously, the intelligent electric vehicle frequently interacts with the vehicle, the road (including the road side charging pile) and the cloud, and the real-time performance and the safety requirement of the interaction are higher and stricter, and the traditional low-bandwidth distributed electronic and electrical architecture based on the CAN/LIN bus has difficulty in meeting the actual requirements. The design of the electronic and electric framework of the novel intelligent electric automobile is imperative. Currently, the mainstream automobile electronic and electrical architecture design is generally divided into a distributed architecture and a centralized architecture, the distributed architecture has a bottleneck that cannot be broken through by data transmission delay, potential safety hazards and the like in the aspect of large data communication, the centralized architecture generally adopts a domain management mode to perform centralized management on systems/units with similar functions and perform data fusion by using a domain controller so as to realize optimal control, the current most representative domain controller is zFAS of Audi A8, but the centralized architecture is still lack of mechanisms and methods for performing centralized management on increasingly large amounts of vehicle-mounted data. Therefore, there is a need to design a new centralized electronic and electrical architecture capable of implementing a unified storage of vehicle-mounted data and a hierarchical forwarding function based on data privacy and openness.
Disclosure of Invention
In order to overcome the problems of unsmooth information caused by the conventional vehicle-mounted data closure and safety in the complete opening process, the invention expands the current centralized electronic and electrical architecture by designing an independent data warehouse domain, and accordingly provides a data management method facing to an intelligent electric vehicle. Specifically, a data warehouse domain including a data analysis module DPM, a data request analysis module DRPM, a data storage unit and a 5G module is additionally arranged on the basis of the existing centralized electronic and electrical architecture design and is specially used for classified storage and forwarding of vehicle-mounted data, wherein the data analysis modules (DPM 1 and DPM 2) and the data request analysis module DRPM are used for fast matching of the vehicle-mounted data and safety certification of external node requests; the data storage unit is used for performing classified storage on the data analyzed by the DPM and responding to the extraction of the data request analysis module DRPM on specific data; the 5G module is used for communication and data transmission with external nodes including adjacent vehicles, traffic management departments and the like. According to the invention, the data of the intelligent electric vehicle is uniformly stored and accessed, so that the timeliness and the safety of data transmission in the driving process are improved.
In order to realize the purpose of the invention, the following technical scheme is adopted:
the utility model provides an electronic electric framework towards intelligent electric automobile, includes vehicle control unit to and ADAS field, vehicle safety domain, digital passenger cabin field, comfortable system domain, vehicle motion field, automobile body electronic domain, data warehouse field and the on-vehicle diagnostic system DI that links to each other with vehicle control unit, data warehouse field includes data analysis module DPM, data request analysis module DRPM, data storage unit and 5G module, data analysis module DPM links to each other with data storage unit, data request analysis module DRPM, and data request analysis module DRPM links to each other with 5G module.
In the above scheme, data analysis module DPM includes miniature singlechip MCU1, and miniature singlechip MCU1 links to each other with whole car CAN-FD bus, storage CAN-FD bus respectively through whole car CAN controller, whole car CAN transceiver, OBD interface 1 and storage CAN controller, storage CAN transceiver, OBD interface 2, whole car CAN-FD bus, storage CAN-FD bus are the connecting wire that data analysis module DPM and whole car controller, data storage unit, data request analysis module DRPM link to each other.
In the above scheme, the data analysis module DPM further includes a power supply unit, and the power supply unit supplies power to the micro single chip microcomputer MCU 1.
In the above scheme, data request analysis module DRPM includes miniature singlechip MCU2, and miniature singlechip MCU2 is connected with storage CAN controller, storage CAN transceiver in proper order, and storage CAN transceiver passes through OBD interface 3 and links to each other with storage CAN-FD bus, and miniature singlechip MCU2 still links to each other with the safety certification submodule, and the safety certification submodule links to each other with the 5G module.
In the above scheme, the data request analysis module DRPM further includes a power supply unit for supplying power to the micro-singlechip MCU2 and the security authentication sub-module.
A data management method for an electronic and electrical architecture of an intelligent electric vehicle is characterized by comprising data storage and data forwarding of the intelligent electric vehicle.
Further, the specific process of intelligent electric vehicle data storage is as follows: the ADAS domain, the whole vehicle security domain, the digital cabin domain, the comfort system domain, the vehicle motion domain, the vehicle body electronic domain and the data warehouse domain in the electronic electrical framework generate messages and then transmit the messages to the data analysis module DPM, the data analysis module DPM identifies address codes of the data messages, the data types, the security levels and the matching of administrators are carried out according to an intelligent vehicle-mounted data matching library of the electric vehicle, the data messages are sent to the storage CAN-FD bus after the data messages are matched, and the storage CAN-FD bus stores the data messages into different preset subareas of the data storage unit in a classified mode.
Further, the specific process of intelligent electric vehicle data forwarding is as follows: the external node sends a data request to the vehicle through the 5G module, the data request analysis module DRPM carries out safety certification on the request, if the request is successfully verified, a remote message is sent to the data storage unit to extract vehicle-mounted data requested by the external node, and the 5G module sends the vehicle-mounted data to the external request node; otherwise, the node is denied access.
The beneficial effects of the invention are as follows:
1. the invention expands the electronic and electrical architecture of the current centralized intelligent electric automobile and provides a data management method. On the basis that the traditional distributed electronic and electrical architecture cannot guarantee data safety and instant transmission, and the current centralized electronic and electrical architecture neglects unified management of vehicle-mounted data, the invention designs the centralized electronic and electrical architecture comprising an ADAS domain, a whole vehicle safety domain, a digital cockpit domain, a comfort system domain, a vehicle motion domain, a vehicle body electronic domain and a data warehouse domain, and each important system on a vehicle, such as a chassis control system, is independent through a domain controller to guarantee the driving safety; in addition, the data warehouse domain is used for collecting data of the vehicle and exchanging real-time data with external nodes, so that the problems of data sharing and safety among vehicles in an intelligent networking environment can be solved, and the intelligentization and safe traveling of the vehicle and other vehicles in the same network environment can be guaranteed.
2. The vehicle-mounted data management system is divided into six types of data including environmental road information data HJ, safety sensitive data AQ, infotainment data YL, comfort data SS, vehicle running state data ZT and vehicle body data CS based on domain management, and the safety level and the manager of the six types of data are set, so that the vehicle-mounted data can be conveniently and uniformly classified and stored in a data warehouse domain.
3. The invention designs a data analysis module DPM, which realizes the matching of data types, security levels and administrators with address codes by identifying the address codes in data messages, and is convenient for classified storage of vehicle-mounted data in a data storage unit; in addition, in order to solve the problem of large data volume in the intelligent travel process, two parallel data analysis modules (DPM 1 and DPM 2) are designed, double-path complementary data analysis is realized, and the condition of data processing delay of a single DPM can be relieved.
4. The invention designs a data request analysis module DRPM which ensures the safety of vehicle-mounted data transmission through double identity authentication of an external request node and an administrator thereof.
Drawings
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a schematic diagram of an electronic and electrical architecture of an intelligent electric vehicle according to the present invention.
Fig. 2 is a hardware structure diagram of a data parsing module DPM according to the present invention.
Fig. 3 is a hardware structure diagram of a data request analysis module DRPM according to the present invention.
Fig. 4 is a flow chart of the intelligent electric vehicle-mounted data storage method of the invention.
Fig. 5 is a flow chart of the intelligent electric vehicle-mounted data forwarding process of the invention.
Detailed Description
The invention provides an electronic electrical architecture design and data management method for an intelligent electric automobile, wherein the management method comprises data storage and data forwarding. The following further description is made with reference to the accompanying drawings and specific examples:
fig. 1 is a schematic diagram of an electronic and electrical architecture design for an intelligent electric vehicle in an embodiment of the present invention, including 1 vehicle controller, 1 ADAS domain, 1 vehicle security domain, 1 digital cabin domain, 1 comfort system domain, 1 vehicle motion domain, 1 vehicle body electronic domain, 1 data warehouse domain, 1 vehicle-mounted diagnostic system DI, and multiple FlexRay, CAN-FD, CAN, and LIN buses, where the ADAS domain controller, the vehicle security domain controller, the digital cabin domain controller, the comfort system domain controller, the vehicle motion domain controller, and the vehicle body electronic domain controller are connected to the vehicle controller through their respective buses, and the vehicle controller is connected to the vehicle-mounted diagnostic system DI through a CAN bus, and the vehicle controller is a central gateway unit and is used for communication of various vehicle-mounted buses.
The ADAS domain comprises 1 camera CA, 1 ultrasonic radar UR, 1 millimeter wave radar MWR, 1 laser radar LI and 1 ADAS domain controller, and the camera CA, the ultrasonic radar UR, the millimeter wave radar MWR and the laser radar LI are respectively connected with the ADAS domain controller through FlexRay buses.
The whole vehicle safety domain comprises a main and auxiliary driving safety air bag system, 1 anti-lock brake system ABS, 1 vehicle body stability control system ESP, 1 safety belt control unit and 1 whole vehicle safety domain controller, wherein the main and auxiliary driving safety air bag system, the anti-lock brake system ABS, the vehicle body stability control system ESP and the safety belt are connected with the whole vehicle safety domain controller through a CAN-FD bus.
The digital cockpit area comprises 1 face recognition unit, 1 gesture control unit, 1 VR education system, 1 communication system and 1 digital cockpit area controller, and the face recognition unit, the gesture control unit, the VR education system and the communication system are connected with the digital cockpit area controller through a FlexRay bus.
The comfortable system domain comprises 1 pedal force control unit, 1 tire pressure system, 1 seat heating system, 1 air conditioning system and 1 comfortable system domain controller, and the pedal force control unit, the tire pressure system, the seat heating system and the air conditioning system are connected with the comfortable system domain controller through an LIN bus.
The vehicle motion domain comprises 1 power battery management system BMS, 1 charging system, 1 intelligent instrument, 1 chassis control system and 1 vehicle motion domain controller, and the power battery management system BMS, the charging system, the intelligent instrument and the chassis control system are connected with the vehicle motion domain controller through a CAN bus.
The automobile body electronic domain comprises 1 window control unit, 1 automobile door control unit, 1 automobile lamp control unit, 1 trunk control unit and 1 automobile body electronic domain controller, and the window control unit, the automobile lamp control unit, the automobile door control unit and the trunk control unit are connected with the automobile body electronic domain controller through LIN buses.
The data warehouse domain comprises 2 data analysis modules DPM, 1 data request analysis module DRPM, 1 5G module and 1 data storage unit, the data analysis modules DPM1 and DPM2 are connected with a vehicle control unit, the data storage unit and the data request analysis module DRPM through CAN-FD buses (including a vehicle CAN-FD bus and a storage CAN-FD bus), the 5G module is connected with the data request analysis module DRPM through a signal line, and the 5G module is communicated with external nodes such as adjacent vehicles and traffic management departments by using a 5G signal network and is responsible for sending vehicle-mounted data with security levels of S2, S3 and S4 in the data storage unit; the 5G module adopts a 5G-based vehicle-mounted box and has the advantages of high speed, wide connection and low time delay; the data storage unit selects the 3D NAND which is suitable for the future internet electric vehicle and is used for the vehicle with the capacity of 10t and is derived from western data.
Fig. 2 is a schematic diagram of a data parsing module DPM according to the present invention, which includes 1 micro-MCU 1, 1 power supply unit, 1 entire car CAN controller, 1 entire car CAN transceiver, 1 storage CAN controller, 1 storage CAN transceiver, 2 OBD signal interfaces (OBD interface 1, OBD interface 2), and 1 a-type USB power interface, where the micro-MCU 1 is connected to the entire car CAN controller and the storage CAN controller, respectively, and is connected to the entire car CAN transceiver and the storage CAN transceiver, and the entire car CAN transceiver and the storage CAN transceiver are connected to entire car CAN-FD and storage CAN-FD buses through the OBD interface 1 and the OBD interface 2, respectively; the power supply unit is connected with an external 12V power supply line through an A-type USB power interface and outputs 5V voltage to the micro single chip microcomputer MCU 1;
the data analysis module DPM is a matching module which analyzes the address of the vehicle-mounted data message and divides the safety level of the vehicle-mounted data message so as to store the vehicle-mounted data message in a specific partition in a data storage unit, and the function of the data analysis module DPM can be realized by identifying the address code of the vehicle-mounted data message. For the definition of the address codes of the systems/units/modules on the vehicle, the user can refer to the intelligent electric vehicle on-vehicle data matching library (refer to the technical protocol of the whole vehicle supplier) shown in table 1. Specifically, the module firstly identifies address codes of various data messages on the CAN-FD bus of the whole vehicle to obtain a source address of the data message; after the identification is finished, the data are matched with the information in the matching library in the table 1, and the type, the security level and the administrator of the data are determined; finally, the data are transmitted to specific partitions in the data storage unit, for example 01 vehicle body data CS, 02 comfort data SS, 03 infotainment data YL, 04 safety-sensitive data AQ, 05 vehicle operating state data ZT, 06 environmental road information data HJ. The environmental road information data HJ comprises traffic signal information and surrounding road condition information monitored by the vehicle, the default grade of the data is public S4, and the data can authorize the traffic management department to collect traffic road conditions and perform emergency treatment on emergency situations occurring at any time or authorize the data to adjacent vehicles for detecting the traffic conditions at the front and the back. The safety sensitive data AQ comprises monitoring data of a main driving safety air bag and a secondary driving safety air bag on the vehicle and real-time data of a vehicle body stabilizing system such as ABS, ESP and the like, the default level of the data is relatively private S2, and the data can be authorized to a vehicle supplier or a part supplier so as to facilitate real-time detection and monitoring of the data and remind a vehicle owner if necessary. The information entertainment data YL comprises information of interaction with an entertainment information platform, such as face recognition, gesture control, VR education, a communication system and the like, the default level of the data is private S2, the data can be authorized to various entertainment/education platforms, and the platform is convenient for personalized pushing of a vehicle owner. Comfortable data SS includes that vehicle-mounted air conditioner temperature, seat position, footboard dynamics, tire pressure etc. influence the data stream of car owner' S driving comfort, and this type of data acquiescence level is secret S1, generally not authorizing outward, and the car owner can carry out individualized setting and save. The vehicle running state data ZT comprises real-time vehicle speed, gear, surplus electric quantity, steering wheel turning angle and other intelligent instrument system display information, the default grade of the data is relatively public S3, and the data can be authorized to adjacent vehicles or roadside equipment RSU, so that the vehicles can conveniently join in formation driving or be used for real-time monitoring of traffic management departments. The vehicle body data CS comprises opening and closing state information of doors, windows, a trunk, lamps and the like on the vehicle; the default grade of the data is private S1, generally, external authorization is not performed, and the vehicle owner can be reminded through a vehicle-mounted central control screen or a mobile phone APP. The data analysis module DPM CAN realize unified storage and classified storage of vehicle-mounted data, and in addition, the unreasonable property of processing a large amount of vehicle-mounted data by a single data analysis module is considered, two parallel data analysis modules DPM1 and DPM2 are arranged in the framework, data messages are distributed through a filter in a finished vehicle CAN controller in the module, double-path complementary data analysis is realized, the timeliness and the reliability of data storage are guaranteed, and meanwhile, the data CAN be instantly accessed.
TABLE 1 Intelligent electric vehicle data matching library
Fig. 3 is a schematic diagram of a data request analysis module DRPM according to the present invention, including 1 micro-MCU 2, 1 power supply unit, 1 storage CAN transceiver, 1 storage CAN controller, 1 security authentication sub-module, 1 a-type USB power interface, 1 monitoring serial port, 1 PCIE interface, 1 OBD interface (OBD interface 3), where the storage CAN transceiver is connected to a storage CAN-FD bus through the lower OBD interface 3, the power supply unit is connected to an external 12V voltage line through the a-type USB interface, the power supply unit is connected to the micro-MCU 2 through a 5V voltage line, the power supply unit is further connected to the security authentication sub-module through a 3.5V voltage line, and the security authentication sub-module is connected to the 5G module through the PCIE interface; the micro single-chip microcomputer MCU2 is connected with the safety certification submodule and the storage CAN controller through signal lines, the storage CAN controller is connected with the storage CAN transceiver through a storage CAN-FD bus, the monitoring serial port is connected with the MCU2 pin and the chip pin in the safety certification submodule and used for displaying, analyzing and testing data streams in the data request analysis module DRPM and ensuring the effectiveness of equipment communication, and the safety certification submodule carries out safety certification by judging whether a request node and a manager thereof are filed in a traffic management department.
The intelligent electric vehicle data storage mode comprises the following steps:
1. data message generation: the six types of data messages are generated by each system/unit/module in an ADAS domain, a whole vehicle security domain, a digital cockpit domain, a comfortable system domain, a vehicle motion domain and a vehicle body electronic domain and are transmitted to the data analysis modules DPM1 and DPM2 through four types of vehicle buses of FlexRay, CAN-FD, CAN and LIN and a whole vehicle controller;
2. data message analysis: the data analysis modules DPM1 and DPM2 identify address codes of data messages transmitted by the four types of vehicle-mounted buses, match the data types, the security levels and the managers by combining the vehicle-mounted data matching database of the intelligent electric vehicle shown in the table I, and send the data messages to the storage CAN-FD bus after matching is completed;
3. data message storage: and storing all data messages on the CAN-FD bus into different preset subareas of the data storage unit in a classified manner.
Fig. 4 is a flow chart of the intelligent electric vehicle-mounted data storage process, taking an airbag system as an example, and the specific process is as follows:
step1: generating data messages by systems/units/modules in six domains, namely an ADAS domain, a whole vehicle security domain, a digital cabin domain, a comfort system domain, a vehicle motion domain and a vehicle body electronic domain; for example, an air bag system ECU in the whole vehicle safety domain monitors the state of a main-auxiliary driving air bag system of the intelligent electric vehicle in real time and sends a state information data message (address code-10000001) to a data warehouse domain through a CAN-FD bus in the whole vehicle safety domain to wait for analysis.
Step2: the data analysis modules (DPM 1 and DPM 2) perform two-way division analysis on data messages on a CAN-FD bus of a data warehouse domain through a whole vehicle CAN controller address coding screening pool in the modules; for example, according to the on-board data matching library (table 1) of the intelligent electric vehicle, the data parsing module DPM2 needs to parse and identify a data message (from the airbag system) with an address code of 100 00001.
Step3: if the data analyzing modules DPM1 and DPM2 cannot analyze the data packet on the bus, the data packet needs to be discarded to ensure the normal operation of the data analyzing modules.
Step4: after the data analysis module identifies the data message, the identified address code is matched with the data type, the security level and the administrator through an intelligent electric vehicle-mounted data matching library, and if the matching fails, the data message is discarded; the data analysis module DPM2 determines the data type, safety sensitive data AQ, data safety level, and data manager, vehicle owner, parts, and vehicle supplier, which are matched by the address code-100 00001 (airbag system) through the example of the intelligent electric vehicle data matching library shown in table 1.
Step5: after the data message matching is completed, the data analysis module DPM sends the data message to a storage CAN-FD bus to wait for storage; if the data analysis module DPM2 is successfully matched with the data message of the airbag system, the data storage unit subareas (six subareas are divided in advance by the data storage unit, and different subareas store different types of data messages, such as 01-vehicle body data CS, 02-comfort data SS, 03-infotainment data YL, 04-safety sensitive data AQ, 05-vehicle running state data ZT and 06-environmental road information data HJ) in which the messages are to be stored are recorded and sent to the storage CAN-FD bus.
Step6: storing the data message stored on the CAN-FD bus to a designated partition, and waiting for extraction; for example, airbag system data messages (safety sensitive data) are stored in partition 04 according to the Step5 partition example.
The intelligent electric vehicle data forwarding mode comprises the following steps:
1. data message request: the method comprises the steps that external nodes such as a traffic management department, a part or whole vehicle supplier, an adjacent vehicle and the like send six types of data requests to a vehicle through a 5G module;
2. and (3) external node identity authentication: the data request analysis module DRPM carries out safety certification on the request by judging whether the external node and the administrator are already registered in the traffic management department, and if the request is successfully verified, the next step is carried out; otherwise, the node is denied access.
3. Data message sending: after the verification is successful, the data request analysis module DRPM sends a remote message to the data storage unit to extract vehicle-mounted data requested by an external node; further, the vehicle-mounted data is sent to the external request node through the 5G module.
Fig. 5 is a flow chart of the intelligent electric vehicle-mounted data forwarding process, which also takes an airbag system as an example and includes the following specific processes:
step1: external nodes such as adjacent vehicles, parts and complete vehicle suppliers, traffic management centers, entertainment information platforms, high-speed service platforms and the like send specific data requests to the vehicle through a 5G module; for example, a complete vehicle supplier can send a data message request of the airbag system state information to the vehicle.
Step2: the data request analysis module DRPM judges whether the data request node and the administrator thereof are already filed in the traffic management department (the safety node information in the sub-module can be updated online in real time by the traffic management department) through a safety certification sub-module in the module to carry out safety certification; if the DRPM confirms that the finished automobile supplier node is already recorded in the traffic management department through the node information matching of the safety certification sub-module, the next step is carried out, and if not, the request node is refused to access.
Step3: after confirming the safety of the access node, the data request analysis module DRPM sends a remote data message with a data address code extracting instruction to the data storage unit, so that the specific data can be quickly addressed and extracted in the data storage unit; if the DRPM finishes authenticating the node information of the whole vehicle supplier, the DRPM sends a remote message with an extracted data address code of-100 00001, and the data storage unit addresses to the 04 subarea and extracts the data message with the address code of 10000001 after receiving the message.
Step4: sending the extracted data message to a request node through a 5G module; for example, the data message with the address code of 10000001 extracted from the data storage unit is sent to the finished automobile supplier through the storage CAN-FD bus and the 5G module.
The electronic electrical architecture design and data management method for the intelligent electric automobile, provided by the invention, realizes 'unified storage and unified access' of vehicle-mounted data in an intelligent networking environment, solves the problem of insufficient safety when the vehicle-mounted data of the intelligent electric automobile is opened, and can effectively improve the reliability and instantaneity of data transmission.
The invention is described simply and not limited to the above working range, and it is within the scope of the invention to adopt the idea and working method of the invention to make simple modification and application to other devices, or to make modification and decoration without changing the principle of the main concept of the invention.
Claims (5)
1. A data management method of an electronic electric framework facing an intelligent electric vehicle is characterized in that the data management method is based on the electronic electric framework facing the intelligent electric vehicle and comprises a vehicle control unit, an ADAS domain, a vehicle security domain, a digital cabin domain, a comfort system domain, a vehicle motion domain, a vehicle body electric domain, a data warehouse domain and a vehicle-mounted diagnosis system DI, wherein the ADAS domain, the vehicle security domain, the digital cabin domain, the comfort system domain, the vehicle motion domain, the vehicle body electric domain, the data warehouse domain and the vehicle-mounted diagnosis system DI are connected with the vehicle control unit, the data warehouse domain comprises a data analysis module DPM, a data request analysis module DRPM, a data storage unit and a 5G module, the data analysis module DPM is connected with the data storage unit and the data request analysis module DRPM, and the data request analysis module DRPM is connected with the 5G module;
the data management method comprises the steps of intelligent electric vehicle data storage and data forwarding;
the specific process of the intelligent electric vehicle data storage is as follows: an ADAS domain, a whole vehicle security domain, a digital cabin domain, a comfort system domain, a vehicle motion domain, a vehicle body electronic domain and a data warehouse domain in the electronic electrical framework generate messages and transmit the messages to a data analysis module DPM, the data analysis module DPM identifies address codes of the data messages, matches the data types, security levels and administrators according to an intelligent electric vehicle-mounted data matching library, sends the data messages to a storage CAN-FD bus after the matching, and the storage CAN-FD bus stores the data messages in different preset subareas of a data storage unit in a classified manner;
the specific process of intelligent electric vehicle data forwarding is as follows: an external node sends a data request to a vehicle through a 5G module, a data request analysis module DRPM carries out safety certification on the request, if the request is successfully verified, a remote message is sent to a data storage unit to extract vehicle-mounted data requested by the external node, and the 5G module sends the vehicle-mounted data to an external request node; otherwise, the node is denied access.
2. The data management method according to claim 1, wherein the data parsing module DPM comprises a micro-MCU 1, the micro-MCU 1 is connected to a vehicle CAN-FD bus and a storage CAN-FD bus respectively through a vehicle CAN controller, a vehicle CAN transceiver, an OBD interface 1, a storage CAN controller, a storage CAN transceiver, and an OBD interface 2, and the vehicle CAN-FD bus and the storage CAN-FD bus are connection lines through which the data parsing module DPM is connected to the vehicle controller, the data storage unit, and the data request analyzing module DRPM.
3. The data management method according to claim 2, wherein the data parsing module DPM further comprises a power supply unit, and the power supply unit supplies power to the micro-singlechip MCU 1.
4. The data management method of claim 1, wherein the data request analysis module DRPM comprises a micro-singlechip MCU2, the micro-singlechip MCU2 is sequentially connected to the storage CAN controller and the storage CAN transceiver, the storage CAN transceiver is connected to the storage CAN-FD bus through an OBD interface 3, the micro-singlechip MCU2 is further connected to a security authentication sub-module, and the security authentication sub-module is connected to the 5G module.
5. The data management method according to claim 4, wherein the data request analysis module DRPM further comprises a power supply unit for supplying power to the MCU2 and the security authentication sub-module.
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