CN114679343A - Electronic and electrical architecture for communication redundancy - Google Patents
Electronic and electrical architecture for communication redundancy Download PDFInfo
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- CN114679343A CN114679343A CN202111431825.5A CN202111431825A CN114679343A CN 114679343 A CN114679343 A CN 114679343A CN 202111431825 A CN202111431825 A CN 202111431825A CN 114679343 A CN114679343 A CN 114679343A
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- 238000004891 communication Methods 0.000 title claims abstract description 56
- 230000010354 integration Effects 0.000 claims abstract description 77
- 230000008901 benefit Effects 0.000 description 5
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- 230000004048 modification Effects 0.000 description 2
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- 210000004556 brain Anatomy 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The invention provides an electronic and electric architecture for communication redundancy, and belongs to the technical field of new energy automobiles. The frame includes: the system comprises at least two finished automobile integration units, a finished automobile data center, an automatic driving data center and a cabin data center; the at least two vehicle integrated units are connected in a ring shape; the whole vehicle data center, the automatic driving data center and the cabin data center are all connected with at least one whole vehicle integration unit. The electronic and electrical architecture of the communication redundancy in the embodiment of the invention realizes the communication redundancy and provides physical support for the design of a service-oriented communication structure by adding a physical framework of the vehicle integration units to the data calculation center, adopting a form of a ring network between the vehicle integration units and connecting two paths between the data calculation center and the vehicle integration units. The electronic and electrical architecture with redundant communication, provided by the embodiment of the invention, can effectively ensure the safety and reliability of vehicle operation while ensuring that the vehicle meets the requirements of multiple intelligent functions for quick low-delay response.
Description
Technical Field
The invention relates to the technology of new energy automobiles, in particular to an electronic and electric architecture for communication redundancy.
Background
The electronic and electrical architecture is the core of the electric vehicle, and the level of the electronic and electrical architecture of one vehicle directly influences the response speed of each function of the whole vehicle, the safety degree, the possibility of carrying the function, the cost of a controller and a wire harness and the like. The Arcfox alpha T and Arcfox alpha S electronic and electric architecture on the market mainly adopts a distributed mode and uses a partial domain controller; the Arcfox alpha S Hi edition uses a plurality of domain controllers and a gigabit Ethernet, and the degree of advancement is in the leading position in the market. With a partial domain controller or a plurality of domain controllers, in case of a failure in communication between the domain controller and the gateway, communication of the vehicle integration unit under the entire domain controller is affected. Therefore, the existing electronic and electrical appliance framework cannot effectively ensure the safety and reliability of vehicle operation while meeting the quick low-delay response of multiple intelligent functions.
Disclosure of Invention
The embodiment of the invention provides a communication redundancy electronic and electrical framework, which is used for solving the problem that the electronic and electrical framework in the prior art cannot meet the requirements of quick low-delay response of various intelligent functions and effectively ensure the safety and reliability of vehicle operation.
In order to solve the technical problems, the invention adopts the following technical scheme:
an electronic-electrical architecture for communication redundancy, comprising:
the system comprises at least two vehicle integration units, a vehicle data center, an automatic driving data center and a cabin data center;
the at least two vehicle integration units are connected in a ring shape;
and the whole vehicle data center, the automatic driving data center and the cabin data center are all connected with at least one whole vehicle integration unit.
Further, each vehicle integrated unit is connected with each other through a gigabit Ethernet;
the two whole car integrated units include:
a first vehicle integration unit, a second vehicle integration unit, a third vehicle integration unit, and a fourth vehicle integration unit.
Further, be cyclic annular connection between two at least whole car integrated unit, include:
the first end of the first vehicle integration unit is connected with the first end of the second vehicle integration unit, the second end of the second vehicle integration unit is connected with the first end of the third vehicle integration unit, the second end of the third vehicle integration unit is connected with the first end of the fourth vehicle integration unit, and the second end of the fourth vehicle integration unit is connected with the second end of the first vehicle integration unit.
Further, whole car data center, autopilot data center and passenger cabin data center all with at least one whole car integrated unit connects, includes:
the whole vehicle data center is connected with the second vehicle integrated unit and the fourth vehicle integrated unit through a gigabit Ethernet;
the automatic driving data center is connected with the second vehicle integrated unit through a gigabit Ethernet;
the cabin data center and the fourth vehicle integrated unit are connected through a gigabit Ethernet.
Further, the first vehicle integration unit is used for collecting first state information including a front cabin storage battery, a vehicle lamp and a loudspeaker and carrying out information routing;
the second vehicle integration unit is used for acquiring second state information including a vehicle door on the left side of the vehicle body, wheels, a braking system and a seat and performing information routing;
the third vehicle integration unit is used for acquiring third state information including a charging port, a rear tail gate and a rear lamp and performing information routing;
and the fourth vehicle integration unit is used for acquiring fourth state information including a vehicle door on the right side of the vehicle body, wheels, a brake system and a seat and performing information routing.
Further, the cabin data center is connected to the infotainment domain bus of the vehicle through a flexible data rate controller area network.
Further, the autonomous driving data center is connected to a brake bus of the vehicle through a flexible data rate controller area network.
Further, the automatic driving data center is connected with an anti-collision early warning system of the vehicle through a controller local area network.
Further, the second entire vehicle integration unit is connected with a chassis domain bus of the vehicle through a controller local area network.
Further, the fourth entire vehicle integration unit is connected with a vehicle body domain bus of the vehicle through a controller local area network.
The beneficial effects of the invention are:
the electronic and electrical architecture of the communication redundancy in the embodiment of the invention realizes the communication redundancy and provides physical support for the design of a service-oriented communication structure by adding a physical framework of the vehicle integration units to the data calculation center, adopting a form of a ring network between the vehicle integration units and connecting two paths between the data calculation center and the vehicle integration units. The communication redundancy electronic and electrical architecture of the embodiment of the invention effectively ensures the safety and reliability of vehicle operation while ensuring that the vehicle can meet the quick low-delay response of various intelligent functions.
Drawings
Fig. 1 is a schematic structural diagram of an electrical architecture for communication redundancy according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The invention provides an electronic and electrical framework aiming at the problem that the electronic and electrical framework in the prior art cannot meet the requirements of quick low-delay response of various intelligent functions and effectively ensure the safety and reliability of vehicle operation.
The embodiment of the invention provides an electronic and electrical architecture for communication redundancy, which comprises the following components:
at least two Vehicle Integrated Units (VIU), a Vehicle Data Center (VDC), an automatic driving Data Center (ADC), and a Cockpit Data Center (ICC);
the at least two vehicle integration units are connected in a ring shape;
and the whole vehicle data center, the automatic driving data center and the cabin data center are all connected with at least one whole vehicle integration unit.
According to the electronic and electrical architecture for communication redundancy, the whole vehicle integration units are connected in an annular network, communication redundancy design is carried out on the whole vehicle integration units, and after communication between the two whole vehicle integration units is abnormal, communication data between the two whole vehicle integration units can be achieved through the annular network. The whole vehicle data center, the automatic driving data center and the cabin data center are all connected with at least one whole vehicle integration unit, and communication is guaranteed through redundant communication channels after communication between the data computing center and the data computing center is abnormal.
The electronic and electrical architecture of the communication redundancy in the embodiment of the invention realizes the communication redundancy and provides physical support for the design of a service-oriented communication structure by adding a physical framework of the vehicle integration units to the data calculation center, adopting a form of a ring network between the vehicle integration units and connecting two paths between the data calculation center and the vehicle integration units. The communication redundancy electronic and electrical architecture of the embodiment of the invention effectively ensures the safety and reliability of vehicle operation while ensuring that the vehicle can meet the quick low-delay response of various intelligent functions.
As shown in fig. 1, each of the vehicle integrated units is connected with each other through a gigabit ethernet;
the two whole car integrated units include:
a first vehicle integration unit VIU-F, a second vehicle integration unit VIU-ML, a third vehicle integration unit VIU-R, and a fourth vehicle integration unit VIU-MR.
Optionally, be annular connection between at least two whole car integrated unit, include:
the first end of the first vehicle integrated unit VIU-F is connected with the first end of the second vehicle integrated unit VIU-ML through a first gigabit Ethernet 1, the second end of the second vehicle integrated unit VIU-ML is connected with the first end of the third vehicle integrated unit VIU-R through a second gigabit Ethernet 2, the second end of the third vehicle integrated unit VIU-R is connected with the first end of the fourth vehicle integrated unit VIU-MR through a third gigabit Ethernet 3, and the second end of the fourth vehicle integrated unit VIU-MR is connected with the second end of the first vehicle integrated unit VIU-F through a fourth gigabit Ethernet 4.
The electronic and electrical architecture of the communication redundancy in the embodiment of the invention realizes the communication redundancy and provides physical support for the design of a service-oriented communication structure by adding a physical framework of the vehicle integration units to the data calculation center, adopting a form of a ring network between the vehicle integration units and connecting two paths between the data calculation center and the vehicle integration units. The communication redundancy electronic and electrical architecture of the embodiment of the invention effectively ensures the safety and reliability of vehicle operation while ensuring that the vehicle can meet the quick low-delay response of various intelligent functions.
The communication mode of the more advanced architecture application in the market at present is CANFD communication, the communication rate is about 2Mbps, the gigabit ethernet is 1000Mbps, the theoretical communication rate is 500 times of the former, and theoretically even 2000 times faster than the most common CAN communication. The ring network architecture fully exerts the advantage of the communication speed of the gigabit Ethernet and converts the advantage of the redundant communication speed into the advantage of the reliability and the safety of the function.
The high load rate of the gigabit Ethernet provides conditions for high-speed communication, four area controllers which are divided by areas are used, a VIU-F (front area controller), a VIU-MR (middle right area controller), a VIU-R (rear area controller) and a VIU-ML (middle left area controller), and each area controller controls an actuator which is closer to the physical distance of the controller, so that the purpose of reducing the length of a wiring harness is achieved, the weight of a vehicle body is further reduced, and the cost is reduced. Besides the area controller, three central control units, namely a whole vehicle data center VDC, an automatic driving data center ADC and a cabin data center ICC, are adopted as an architecture brain to perform complex calculation and logic judgment. In the figure, four zone controllers are connected end to end by four Ethernet networks in a ring shape, three central control units are connected to the two zone controllers by the Ethernet networks, and a vehicle data center VDC is used as an upgrade version of a vehicle controller VCU and bears a plurality of important functions, so that one Ethernet network is additionally used as communication redundancy. When the original communication line has a fault, the message passes through the other line.
In an embodiment of the present invention, if the first gigabit ethernet 1 between the first vehicle integrated unit VIU-F and the second vehicle integrated unit VIU-ML fails, and the communication between the first vehicle integrated unit VIU-F and the second vehicle integrated unit VIU-ML is abnormal, data transmission may be performed through the paths of the second gigabit ethernet 2, the third gigabit ethernet 3, and the fourth gigabit ethernet 4. The ring structure of the gigabit Ethernet provides communication redundancy for the electronic and electrical architecture of communication redundancy, and high safety and high real-time performance of communication are ensured.
Optionally, whole car data center, automatic driving data center and passenger cabin data center all with at least one whole car integrated unit connects, includes:
the whole vehicle data center VDC is connected with the second vehicle integrated unit VIU-ML and the fourth vehicle integrated unit VIU-MR through a fifth gigabit Ethernet 5 and a sixth gigabit Ethernet 6;
the automatic driving data center ADC is connected with the second vehicle integrated unit VIU-ML through a seventh gigabit Ethernet 7;
the cabin data center ICC and the fourth vehicle integration unit VIU-MR are connected via an eighth gigabit ethernet 8.
Optionally, when the communication between the vehicle data center VDC and the fourth integrated unit VIU-MR is abnormal, the communication data may be transmitted through the sixth gigabit ethernet 6, and then through the first gigabit ethernet 1 and the fourth gigabit ethernet 4; or the communication data may be transmitted through the sixth gigabit ethernet network 6 and then through the second gigabit ethernet network 2 and the third gigabit ethernet network 3.
The electronic and electric architecture for communication redundancy of the embodiment of the invention performs communication redundancy design on the whole vehicle data center in a mode that a plurality of gigabit Ethernet networks are connected with the whole vehicle data center, and can bring greater safety benefit with lower cost.
Optionally, the first vehicle integration unit VIU-F is configured to collect first status information including a front cabin battery, a vehicle lamp, and a horn, and perform information routing;
the second vehicle integration unit VIU-ML is used for collecting second state information including a vehicle door on the left side of the vehicle body, wheels, a braking system and a seat and carrying out information routing;
the third vehicle integration unit VIU-R is used for collecting third state information including a charging port, a rear tail gate and a rear lamp and performing information routing;
The fourth vehicle integration unit VIU-MR is used for collecting fourth state information including a vehicle door at the right side of the vehicle body, wheels, a brake system and a seat and carrying out information routing.
Optionally, the cockpit data center is connected to the infotainment domain bus of the vehicle through a flexible data rate controller area network CANFD.
Optionally, the autonomous driving data center is connected to a brake bus of the vehicle through a flexible data rate controller area network CANFD.
Optionally, the automatic driving data center is connected with an anti-collision early warning system of the vehicle through a controller area network CAN.
Optionally, the second entire vehicle integration unit is connected to a chassis domain bus of the vehicle through a controller area network CAN.
Optionally, the fourth entire vehicle integration unit is connected with a vehicle body area bus of the vehicle through a controller area network CAN.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. An electronic-electrical architecture for communication redundancy, comprising:
The system comprises at least two finished automobile integration units, a finished automobile data center, an automatic driving data center and a cabin data center;
the at least two vehicle integrated units are connected in a ring shape;
the whole vehicle data center, the automatic driving data center and the cabin data center are all connected with at least one whole vehicle integration unit.
2. The electronic-electrical architecture for communication redundancy of claim 1, wherein each of the vehicle integrated units are connected to each other via gigabit ethernet;
the whole car integrated unit of at least two includes:
the vehicle integration system comprises a first vehicle integration unit, a second vehicle integration unit, a third vehicle integration unit and a fourth vehicle integration unit.
3. The communicatively redundant electronic and electrical architecture of claim 2, wherein the at least two vehicle integration units are connected in a ring configuration, comprising:
the first end of the first vehicle integration unit is connected with the first end of the second vehicle integration unit, the second end of the second vehicle integration unit is connected with the first end of the third vehicle integration unit, the second end of the third vehicle integration unit is connected with the first end of the fourth vehicle integration unit, and the second end of the fourth vehicle integration unit is connected with the second end of the first vehicle integration unit.
4. The electronic-electrical architecture for communication redundancy of claim 2, wherein the full vehicle data center, the autopilot data center, and the cockpit data center are each connected to at least one of the full vehicle integration units, comprising:
the whole vehicle data center is connected with the second vehicle integrated unit and the fourth vehicle integrated unit through a gigabit Ethernet;
the automatic driving data center is connected with the second vehicle integrated unit through a gigabit Ethernet;
the cabin data center and the fourth vehicle integrated unit are connected through a gigabit Ethernet.
5. The communicatively redundant electronic and electrical architecture of claim 2, wherein the first vehicle integration unit is configured to collect and route first status information including front compartment batteries, lights, and speakers;
the second vehicle integration unit is used for acquiring second state information including a vehicle door on the left side of the vehicle body, wheels, a braking system and a seat and performing information routing;
the third vehicle integration unit is used for acquiring third state information including a charging port, a rear tail gate and a rear lamp and performing information routing;
and the fourth vehicle integration unit is used for acquiring fourth state information including a vehicle door on the right side of the vehicle body, wheels, a brake system and a seat and performing information routing.
6. The communicatively redundant electronic-electrical architecture of claim 1, wherein the cabin data center is connected to the infotainment domain bus of the vehicle through a flexible data rate controller area network.
7. The electronic-electrical architecture of communication redundancy of claim 1, wherein the autonomous driving data center is connected with a brake bus of the vehicle through a flexible data rate controller area network.
8. The communicatively redundant electronic-electrical architecture of claim 1, wherein the autonomous driving data center is connected to a pre-crash warning system of the vehicle via a controller area network.
9. The communicatively redundant electronic-electrical architecture of claim 1, wherein the second full vehicle integration unit is connected to a chassis domain bus of the vehicle via a controller area network.
10. The communicatively redundant electronic electrical architecture of claim 1, wherein the fourth full vehicle integration unit is connected to a body area bus of the vehicle via a controller area network.
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| CN202111431825.5A CN114679343A (en) | 2021-11-29 | 2021-11-29 | Electronic and electrical architecture for communication redundancy |
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| CN202111431825.5A CN114679343A (en) | 2021-11-29 | 2021-11-29 | Electronic and electrical architecture for communication redundancy |
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| CN113655708A (en) * | 2021-10-21 | 2021-11-16 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Intelligent vehicle diagonal equal-hop heterogeneous composite redundancy domain architecture |
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- 2021-11-29 CN CN202111431825.5A patent/CN114679343A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047262A1 (en) * | 2019-09-12 | 2021-03-18 | 华为技术有限公司 | System and method for realizing electronic control function in vehicle, and vehicle |
| CN214215697U (en) * | 2020-12-30 | 2021-09-17 | 北京东土科技股份有限公司 | Automobile network control system |
| CN113147624A (en) * | 2021-03-25 | 2021-07-23 | 蔚来汽车科技(安徽)有限公司 | Vehicle electrical system and vehicle |
| CN113655708A (en) * | 2021-10-21 | 2021-11-16 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Intelligent vehicle diagonal equal-hop heterogeneous composite redundancy domain architecture |
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