CN116248441A - Vehicle-mounted gateway system - Google Patents
Vehicle-mounted gateway system Download PDFInfo
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- CN116248441A CN116248441A CN202211735418.8A CN202211735418A CN116248441A CN 116248441 A CN116248441 A CN 116248441A CN 202211735418 A CN202211735418 A CN 202211735418A CN 116248441 A CN116248441 A CN 116248441A
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- 238000012360 testing method Methods 0.000 claims description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The application relates to an on-board gateway system. The method comprises the following steps: the vehicle-mounted gateway comprises a micro control unit, a switch and a microprocessor, wherein the micro control unit is respectively connected with the first controller local area network transceiver and the local area interconnection network transceiver; the domain controller unit at least comprises one domain controller, the domain controllers are connected with the vehicle-mounted gateway, and data transmission is carried out between the domain controllers through an Ethernet link. The method can solve the problem that the vehicle-mounted gateway in the prior art cannot support the operation of the operating system based on software service.
Description
Technical Field
The application relates to the technical field of vehicle communication, in particular to a vehicle-mounted gateway system.
Background
The vehicle-mounted gateway is used as one of core plates of an automobile electronic and electric architecture, buses such as a controller local area network (ControllerAreaNetwork, CAN), a local area interconnection network (LocalInterconnect Network, LIN), an Ethernet and the like are connected together, and information routing and forwarding of different network protocols are realized between functional domains such as automobile body control and information entertainment through physical isolation and protocol conversion. However, with the continuous development of the electronic and electric architecture of the automobile, the traditional vehicle-mounted gateway has difficulty in meeting corresponding functional requirements, for example, the main chip of the traditional vehicle-mounted gateway does not support the operation of an operating system based on software service in the aspects of internal accounting force, internal memory and the like, and is more difficult to support the operation of higher-level application software; moreover, the software of the domain controllers is distributed in a service mode, the functions of the vehicle body are divided in a regional mode, and the intelligent network with more whole vehicle functions is connected, so that the traditional vehicle-mounted gateway cannot realize the whole vehicle intelligent functions or management strategies with higher abstract levels among the multi-domain controllers.
Disclosure of Invention
Based on the above, the vehicle-mounted gateway system is provided, and the problem that the vehicle-mounted gateway in the prior art cannot support the operation of an operating system based on software service is solved.
In one aspect, there is provided an in-vehicle gateway system, the system comprising:
the vehicle-mounted gateway comprises a micro control unit, a switch and a microprocessor, wherein the micro control unit is respectively connected with a first controller local area network transceiver and a local area internet transceiver, the switch is connected with the micro control unit, and the microprocessor is respectively connected with the micro control unit and the switch;
the domain controller unit at least comprises a domain controller, the domain controller is connected with the vehicle-mounted gateway, and data transmission is carried out between the domain controllers through an Ethernet link.
In one embodiment, the domain controller unit further comprises a second controller area network transceiver corresponding to the domain controller, the second controller area network transceiver being connected to the first controller area network transceiver such that the second controller area network transceiver communicates with the first controller area network transceiver.
In one embodiment, the vehicle gateway system further includes a local area network actuator, the local area network actuator being coupled to the local area network transceiver such that the local area network actuator communicates with the local area network transceiver.
In one embodiment, the micro control unit performs signal routing forwarding through a switch, where the signal routing forwarding at least includes: signal route forwarding between non-Ethernet protocols, signal route forwarding between non-Ethernet protocols and Ethernet protocols.
In one embodiment, the micro control unit is connected with the switch to support network management, bus exception handling, controller area network wakeup, power management, gateway diagnosis, production line mode and production line test.
In one embodiment, the micro control unit is connected with the switch to perform configuration management on the switch.
In one embodiment, the microprocessor is connected with the switch to publish and/or subscribe related on-board services.
In one embodiment, the microprocessor is used for information protection, data transmission, driving assistance and scene engine, wherein the data transmission comprises communication with a cloud to transmit corresponding vehicle-mounted data.
In one embodiment, the micro control unit is connected with the microprocessor through a serial interface or a serial peripheral interface.
In one embodiment, the domain controller and the vehicle gateway are connected through a controller local area network, or a local area interconnection network, or an ethernet network.
The vehicle-mounted gateway system comprises a vehicle-mounted gateway, wherein the vehicle-mounted gateway comprises a micro control unit, a switch and a microprocessor, the micro control unit is respectively connected with a first controller local area network transceiver and a local area internet transceiver, the switch is connected with the micro control unit, and the microprocessor is respectively connected with the micro control unit and the switch; the domain controller unit at least comprises a domain controller, the domain controller is connected with the vehicle-mounted gateway, and data transmission is carried out between the domain controllers through an Ethernet link, so that the traditional vehicle-mounted gateway is improved, and the operation of an operating system based on software service is supported.
Drawings
FIG. 1 is a block diagram of an in-vehicle gateway system in one embodiment;
FIG. 2 is a block diagram of an in-vehicle gateway in one embodiment;
FIG. 3 is a block diagram of a connection between a vehicle gateway and a domain controller unit in one embodiment;
the reference numerals are as follows:
1. ethernet network
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims.
References in this specification to orientations or positional relationships as "upper", "lower", "left", "right", "intermediate", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc., are based on the orientation or positional relationships shown in the drawings, are also for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The vehicle-mounted gateway is used as one of core plates of an automobile electronic and electric architecture, and is connected with buses such as CAN, LIN, ethernet and the like, and is between functional domains such as automobile body control, power assembly, information entertainment, remote information processing, intelligent cabin, automatic driving and the like through physical isolation and protocol conversion, so that information routing and forwarding of different network protocols are realized. However, as the electronic and electric architecture of the automobile is continuously developed towards the directions of distributed control, regional control and central control, the traditional vehicle-mounted gateway has difficulty in meeting corresponding functional requirements, for example, on the basis of regional control, the electronic and electric architecture of the whole automobile is a star-shaped architecture, the vehicle-mounted gateway becomes an information transmission bridge among multi-domain controllers, and the main chip of the traditional vehicle-mounted gateway does not support the operation of an operating system based on software service in the aspects of accounting force, memory and the like, and is more difficult to support the operation of higher-level application software; moreover, the software service deployment of the domain controllers, the regional division of the vehicle body functions and the intelligent networking with more whole vehicle function requirements can not realize the whole vehicle intelligent functions or management strategies with higher abstraction level among the multi-domain controllers by the traditional vehicle-mounted gateway, so that the vehicle-mounted gateway system is provided to support the operation of an operating system based on the software service.
In one embodiment, as shown in fig. 1, there is provided an in-vehicle gateway system, the system comprising:
the vehicle-mounted gateway comprises a micro control unit, a switch and a microprocessor, wherein the micro control unit is respectively connected with the first controller local area network transceiver and the local area interconnection network transceiver;
the domain controller unit at least comprises one domain controller, the domain controllers are connected with the vehicle-mounted gateway, and data transmission is carried out between the domain controllers through an Ethernet 1 link.
In one embodiment, the connection manner between the domain controller unit and the vehicle gateway may be as shown in fig. 1 or as shown in fig. 3, which is not limited in particular. As shown in fig. 3, domain control 1, domain control 2, domain control 3, and domain control n refer to domain controllers in a domain controller unit, CAN refers to a controller area network, lin refers to a local interconnection network, ETH refers to an ethernet, and a central service gateway refers to a vehicle gateway. The switch constructs the domain controller, the micro control unit and the microprocessor into a star-shaped local area network, and in the local area network, the domain controllers can mutually access and transmit data through an Ethernet link. In one embodiment, as shown in fig. 2, the CAN transceiver refers to a first controller area network transceiver, the Lin transceiver refers to a local interconnect network transceiver, the Switch refers to a Switch, the MPU refers to a microprocessor, the MCU refers to a microcontroller unit, the pinmonnector is a pin connector, the DC/DC is a DC converter, the geconnect is a universal electrical connector, the SPI is a serial peripheral interface, the RGMII is a gigabit media independent interface, the FLASHEEPROM is a memory, the KL15 is an engine ignition signal, the KL30 is a power supply, and the EMMC is an embedded memory. The micro control unit and the Switch CAN realize the functions of the traditional gateway, and in some implementation processes, the requirements of high-allocation and low-allocation vehicle use CAN be met simultaneously, for example, a signal routing forwarding function between non-Ethernet protocols, a signal routing forwarding function between non-Ethernet and Ethernet, support network management, BUSOFF/ACKMISS exception handling, support CAN/IG line wake-up, power management, gateway diagnosis, production line mode and production line test, a configuration management function for Switch and the like. Further, the microprocessor and the switch can realize the functions of information protection, big data transmission, driving assistance, OTA, VHR, SOA service, scene engine, log system and the like on the basis of the multi-area controller, so that more intelligent functions and management strategies of the whole vehicle are expanded and realized, the functional requirements of the vehicle-mounted gateway under the development trend of a new electronic and electric architecture are met, and the direction is expanded for more and more advanced whole vehicle functions. Meanwhile, communication interaction can be carried out between the micro control unit and the microprocessor through a serial interface or a serial peripheral interface, so that coordination work of the micro control unit and the microprocessor is ensured.
As a specific implementation manner of the above embodiment, the domain controller unit further includes a second controller area network transceiver corresponding to the domain controller, and the second controller area network transceiver is connected to the first controller area network transceiver, so that the second controller area network transceiver communicates with the first controller area network transceiver.
As shown in fig. 3, the second controller area network transceiver refers to a CAN transceiver or a variable Rate CAN (CAN-FD) transceiver on the domain controller, and the first controller area network transceiver is connected to the second controller area network transceiver, which refers to the CAN transceiver and the CAN/CANFD transceiver on the domain controller to communicate.
As a specific implementation manner of the foregoing embodiment, the vehicle gateway system further includes a local area network actuator, where the local area network actuator is connected to the local area network transceiver, so that the local area network actuator communicates with the local area network transceiver.
It should be noted that, as shown in fig. 3, the local area interconnection network executor refers to a Lin executor, and the local area interconnection network transceiver is connected with the local area interconnection network executor, which refers to that the Lin transceiver and the Lin executor that do not belong to the management and control of the domain controller perform control communication.
As a specific implementation manner of the foregoing embodiment, the signal routing forwarding by the micro control unit through the switch includes at least: signal route forwarding between non-Ethernet protocols, signal route forwarding between non-Ethernet protocols and Ethernet protocols.
It should be noted that, the software system of the micro control unit adopts a layered architecture mode, the first layer is based on a small real-time operating system kernel (FreeRTOS) operating system, the second layer uses a micro controller software interface (cmsisrstospi) as a middleware, the third layer generates a driver layer of a unified standard interface, the fourth layer abstracts a basic software service layer, the fifth layer runs an environment layer, the running environment layer can perform data conversion on signals of an application software layer and messages of the basic software service layer, and the sixth layer is the application software layer.
As a specific implementation manner of the above embodiment, the micro control unit is connected with the switch to support network management, bus exception handling, controller area network wakeup, power management, gateway diagnosis, production line mode and production line test.
As a specific implementation manner of the above embodiment, the micro control unit is connected to the switch to perform configuration management on the switch.
As a specific implementation of the above embodiment, the microprocessor is connected to the switch to publish and/or subscribe to relevant vehicle services.
It should be noted that, the service function is realized through the microprocessor and the switch, wherein, the software system of the microprocessor adopts a layered architecture mode, uses the LinuxOs as a system base, the second layer is a root file system layer, the third layer is a platform service layer, and the fourth layer is an application layer for realizing a higher-level and abstract management strategy.
As a specific implementation manner of the foregoing embodiment, the microprocessor is used for information protection, data transmission, driving assistance, and a scene engine, where the data transmission includes communication with a cloud to transmit corresponding vehicle-mounted data.
As a specific implementation manner of the above embodiment, the micro control unit is connected with the microprocessor through a serial interface or a serial peripheral interface.
As a specific implementation manner of the foregoing embodiment, the domain controller and the vehicle gateway are connected through a controller local area network, or a local area interconnection network, or an ethernet network.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A vehicle-mounted gateway system, comprising:
the vehicle-mounted gateway comprises a micro control unit, a switch and a microprocessor, wherein the micro control unit is respectively connected with a first controller local area network transceiver and a local area internet transceiver, the switch is connected with the micro control unit, and the microprocessor is respectively connected with the micro control unit and the switch;
the domain controller unit at least comprises a domain controller, the domain controller is connected with the vehicle-mounted gateway, and data transmission is carried out between the domain controllers through an Ethernet link.
2. The vehicle gateway system of claim 1, wherein the domain controller unit further comprises a second controller area network transceiver corresponding to the domain controller, the second controller area network transceiver being coupled to the first controller area network transceiver such that the second controller area network transceiver communicates with the first controller area network transceiver.
3. The vehicle gateway system of claim 2, further comprising a local area interconnect network actuator coupled to the local area interconnect network transceiver such that the local area interconnect network actuator communicates with the local area interconnect network transceiver.
4. The vehicle gateway system of claim 3, wherein the micro control unit performs signal routing forwarding through a switch, the signal routing forwarding at least comprising: signal route forwarding between non-Ethernet protocols, signal route forwarding between non-Ethernet protocols and Ethernet protocols.
5. The vehicle gateway system of claim 4, wherein the micro control unit supports network management, bus exception handling, controller area network wakeup, power management, gateway diagnostics, production line mode, production line testing by interfacing with the switch.
6. The vehicle gateway system of claim 5, wherein the micro control unit is configured to manage the switch by connecting to the switch.
7. The on-board gateway system of claim 1, wherein the microprocessor is connected to the switch to publish and/or subscribe to relevant on-board services.
8. The vehicle gateway system of claim 7, wherein the microprocessor is configured for information protection, data transmission, driving assistance, and a scene engine, wherein the data transmission includes communication with a cloud to transmit corresponding vehicle data.
9. The vehicle gateway system of claim 8, wherein the micro control unit is connected to the microprocessor through a serial interface or a serial peripheral interface.
10. The vehicle gateway system of any of claims 1-9, wherein the domain controller and the vehicle gateway are connected by a controller area network, or a local interconnect network, or an ethernet network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211735418.8A CN116248441A (en) | 2022-12-30 | 2022-12-30 | Vehicle-mounted gateway system |
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| CN202211735418.8A CN116248441A (en) | 2022-12-30 | 2022-12-30 | Vehicle-mounted gateway system |
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