CN217469992U

CN217469992U - Vehicle-mounted gateway network expansion device supporting multiple networks

Info

Publication number: CN217469992U
Application number: CN202221815084.0U
Authority: CN
Inventors: 杨立峰; 秦贵和; 王樱蓓; 王文轩; 徐莹慧; 侯广哲; 张自展; 刘婉宁; 冯瑶; 王新潮
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-09-20
Anticipated expiration: 2032-07-14

Abstract

The utility model relates to a support on-vehicle gateway network extension device of multiple network belongs to automotive electronics and network technology. The power module, the 5G/4G/3G module, the Wi-Fi/Bluetooth module, the 4-way LIN network module, the 1-way FlexRay network module, the 3-way CAN network module, the 5-way CAN/CAN-FD network module, the 2-way gigabit vehicle-mounted Ethernet module and the vehicle-mounted Ethernet switch module are respectively connected with the adapter module. The advantage is novel structure, can provide the route of multiple network data transmission to can provide corresponding security function. The user only needs design host system by oneself, and with the utility model provides a vehicle-mounted gateway extension device connects, can obtain multiple vehicle network's data path. The utility model provides a network such as CAN, CAN-FD, LIN, FlexRay CAN be applied to the electron electrical framework of distributing type.

Description

Vehicle-mounted gateway network expansion device supporting multiple networks

Technical Field

The utility model relates to an automotive electronics and network technology especially relate to a support on-vehicle gateway network extension device of multiple network.

Background

With the technology advancing day by day, the automobile is used as a travel tool and carries more and more functions, such as driving assistance, infotainment, active safety and the like. This also presents new challenges to the design of automotive networks, and the increased functionality will necessarily increase more network bandwidth requirements, more stringent network latency requirements, and more diverse network type requirements. The gateway is used as the hub of the automobile network, and the task of the gateway is heavier and heavier.

At present, a vehicle-mounted network widely applied is a CAN bus network assisted with an LIN bus network, wherein the CAN CAN meet the requirement of higher bandwidth above 100Kbps, and the LIN CAN meet the requirement of low bandwidth below 100 Kbps. On some high-end models, a FlexRay network is also used, which can reach a rate of up to 10 Mbps. In addition, two technologies of a CAN-FD network and a vehicle-mounted ethernet network are becoming mature, wherein the former is used as an improved version of the CAN network, data load and bandwidth are improved, and the latter is used as an ethernet network, which CAN provide bandwidth of hundreds of megabytes or even gigabytes.

At present, in the iterative process of automobile networks, many automobile manufacturers try to adopt more advanced automobile networks, such as vehicle-mounted ethernet and CAN-FD, in the produced automobiles, but in consideration of research and development cost, some functional modules with relaxed bandwidth requirements still adopt older networks such as CAN and LIN. This results in more network types being present on a vehicle.

Existing vehicular gateways cannot meet such complicated network type requirements and network bandwidth requirements, and they often only can provide one or a plurality of network types and limited bandwidth, while some gateways supporting more network types are difficult to control in terms of size and cost.

Disclosure of Invention

The utility model provides a support on-vehicle gateway network extension device of multiple network to solve current gateway equipment network and provide the less problem of type, bandwidth, CAN realize that CAN, CAN-FD, LIN, FlexRay, hundred million on-vehicle ethernet, a plurality of networks such as giga on-vehicle ethernet connect simultaneously, be applicable to present automobile network framework and future automobile network framework.

The utility model discloses the technical scheme who takes is, power module, 5G 4G 3G module, Wi-Fi bluetooth module, 4 way LIN network module, 1 way FlexRay network module, 3 way CAN network module, 5 way CAN/FD network module, 2 way giga on-vehicle ethernet module and on-vehicle ethernet switch module are connected with the adapter module respectively, this on-vehicle ethernet switch module contains 1 way giga on-vehicle ethernet and 6 way hundred mega on-vehicle ethernet, the adapter module is used for being connected with host system through the mode that the board was arranged the needle to the board.

The power module of the utility model comprises two power units, wherein the first power unit adopts a PW2163 power management chip to support 12V input and 5V output; the second power supply unit adopts a TPS650061 power management chip, supports 5V input and 3.3V, 1.8V and 1.2V output, wherein the output of PW2163 is used as the input of TPS 650061.

The utility model discloses a 5 way configuration in 6 way hundred million vehicle-mounted ethernet in the vehicle-mounted ethernet switch module is 100BASE-T1, 1 way configuration is 100 BASE-TX; with a 1-way gigabit ethernet onboard configured as 1000 BASE-T1.

The utility model discloses the on-vehicle ethernet module of 2 way giga all configures to 1000 BASE-T1.

The 5G/4G/3G module is provided with an antenna.

The utility model discloses still include the serial module of debugging.

The utility model discloses still include USBHUB module.

The utility model has the advantages of novel structure can provide multiple network data transmission's route to can provide corresponding safety function. The user only needs design host system by oneself, and with the utility model provides a vehicle-mounted gateway extension device connects, can obtain multiple vehicle network's data path. The utility model provides a CAN, CAN-FD, LIN, FlexRay etc. network CAN be applied to distributed electronic electrical framework, and this kind of framework is a mature and widely used automobile network framework; while the vehicular ethernet can be used in a domain-centralized electronic-electrical architecture, which is an evolution trend of the automotive network architecture. The utility model discloses can satisfy the demand of electron electric framework transition period, the condition that every kind of network in the above network framework all probably appears promptly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic circuit diagram of the present invention;

FIG. 3 is a schematic diagram of the connection between the Wi-Fi/Bluetooth module and the 5G/4G/3G module and the adapter of the present invention;

fig. 4 is a wiring schematic diagram of the LIN module and serial port module and the adapter of the present invention;

FIG. 5 is a schematic diagram of the connection of the CAN/CAN-FD module, the CAN module and the FlexRay module with the adapter of the present invention;

FIG. 6 is a schematic diagram of the connection between the vehicular Ethernet switch module and the USBHUB module and the adapter of the present invention;

fig. 7 is a schematic diagram of the connection between the gigabit ethernet module and the adapter according to the present invention.

Detailed Description

As shown in fig. 1, the power module 11, the 5G/4G/3G module 9, the Wi-Fi/bluetooth module 8, the 4-way LIN network module 1, the 1-way FlexRay network module 7, the 3-way CAN network module 6, the 5-way CAN/CAN-FD network module 5, the 2-way gigabit on-board ethernet module 3, and the on-board ethernet switch module 4 are respectively connected to the adaptor module 12, where the on-board ethernet switch module 4 includes the 1-way gigabit on-board ethernet and the 6-way gigabit on-board ethernet, and the adaptor module 12 is used for being connected to the main control module by way of board-to-board pin alignment. The adaptor module 12 is used for connecting with the main control module, and the user can design the main control module according to the needs of the user. When designing the main control module, the user should ensure that the main control module and each module on the expansion device can be correctly connected.

The power module 11 of the present invention comprises two power units, wherein the first power unit adopts a PW2163 power management chip to support 12V input and 5V output; the second power supply unit adopts a TPS650061 power management chip, supports 5V input and 3.3V, 1.8V and 1.2V output, wherein the output of PW2163 is used as the input of TPS 650061. In addition, the power module supplies power to the main control module through the adaptor module 12.

The utility model discloses a 5 way configuration in 6 ways hundred million vehicle-mounted ethernet in on-vehicle ethernet switch module 4 is 100BASE-T1, 1 way configuration is 100 BASE-TX; with a 1-way gigabit ethernet onboard configured as 1000 BASE-T1.

The 5G/4G/3G module 9 is equipped with the antenna.

The utility model discloses still include serial module 2 on debugging.

The utility model discloses still include USBHUB module 10.

In order to make the functions, structure and technical solution of the present invention more intuitive, the following will be combined with the drawings to specifically describe the present invention, of course, this is only an explanation of the present invention, not a limitation of the present invention.

The power connection principle of the power module output is shown as each VCC and GND pin in fig. 2, and the first power unit of the power module adopts a PW2163 power management chip to support 12V input and 5V output. The second power supply unit adopts a TPS650061 power management chip, supports 5V input and 3.3V, 1.8V and 1.2V output, wherein the output of PW2163 can be used as the input of TPS 650061. Besides being used as an independent power supply for each network module in the expansion device, the power supply module is also connected with the adapter module and used for supplying power to the main control module designed by a user.

As shown in fig. 2 and 3, the Wi-Fi/bluetooth module adopts an 88W8987 chip, supports 2.4G/5G Wi-Fi and bluetooth 5.2, can provide WLAN network and bluetooth access for the whole vehicle, and is connected with the adaptor through an SDIO interface and a serial port. By default, the Wi-Fi function uses SDIO protocol, the Bluetooth function uses UART protocol, and a user can modify the protocol used by the Bluetooth function through corresponding pins of the chip. The module is also responsible for the access function of other wireless modules of the vehicle body.

As shown in fig. 2 and 3, the main functions of the 5G/4G/3G module are to communicate with a remote server via a cellular network, upload and download data, and perform OTA over-the-air upgrade and update gateway firmware. The 5G/4G/3G module adopts a remote RG200U module, the module adopts a miniPCI interface to connect with the adapter, and a PCIe protocol interface and a USB protocol interface provided by miniPCI are used.

As shown in fig. 2 and 4, the LIN network module is mainly used for meeting the low bandwidth requirement in the vehicle-mounted network, a transceiver chip of the module adopts TJA1024, and the chip can provide 4 paths of LIN network outputs at most, wherein the 1 st, 2 nd and 3 rd paths are Master modes, and the 4 th path is a Slave mode.

As shown in fig. 2 and 5, the FlexRay network module supports a transmission rate of 20Mbps at most, and can meet a higher network bandwidth requirement, and the transceiver chip adopts TJA 1081.

As shown in fig. 2 and 5, the CAN network is used for supporting the network requirement of a bandwidth of 100kbps to 1Mbps, the transceiver chip adopts TJA1050, which is a very classic CAN transceiver chip, each path of CAN only needs two lines of TXD and RXD, and the TJA1050 only supports a CAN bus network and does not support a CAN-FD network.

As shown in fig. 2 and 5, the network module comprises 5 paths of CAN/CAN-FD network modules, CAN-FD is an upgraded CAN network, each frame of data CAN carry 64 bytes of data, and compared with a traditional CAN network, the data load of the network module is multiplied; in addition, the bandwidth is increased to 5Mbps, the higher bandwidth requirement CAN be met, and the CAN/CAN-FD network transceiver chip adopts a TJA1463 chip.

As shown in fig. 2 and 6, the vehicle-mounted ethernet switch module has security functions such as a deep packet inspection engine and a dedicated DoS, and can provide certain security; the switch chip adopts 88Q5050, the chip has 8 ports, the functions of each port support user-defined, and the expansion device provides a default interface configuration. Ports 1-5 of the chip are configured to be 100BASE-T1, and each of the ports carries a hundred mega PHY chip without being externally connected with the PHY chip; the port 6 is configured to be 100BASE-TX, and is provided with a hundred million PHY chips without an external PHY chip; the port 7 is externally connected with a gigabit PHY chip and is configured as 1000BASE-T1, and the port 8 is used for connecting with the main control module.

As shown in fig. 2 and 7, the PHY transceiver in the 2-way gigabit ethernet car uses 88Q2110 chip, which supports 1000BASE-T1 network and can meet the high bandwidth requirement.

As shown in fig. 2 and 4, the adapter board is connected to the three-way serial port module, and can be used for debugging of a user.

As shown in fig. 2 and 6, the adapter board is connected to a USB HUB, and the USB HUB can provide 4 USB channels, wherein 1 USB channel is connected to a minipci interface of the 5G/4G/3G module, and the other 2 USB channels are used as USB ports, and the 1 USB channel is used as USB otg interface.

The above is only a specific embodiment of the present invention, however, the protection scope of the present invention is not limited thereto, and any innovative changes within the technical scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A vehicle-mounted gateway network expansion device supporting various networks is characterized in that: the power module, the 5G/4G/3G module, the Wi-Fi/Bluetooth module, the 4-way LIN network module, the 1-way FlexRay network module, the 3-way CAN network module, the 5-way CAN/CAN-FD network module, the 2-way gigabit vehicle-mounted Ethernet module and the vehicle-mounted Ethernet switch module are respectively connected with the adapter module, the vehicle-mounted Ethernet switch module comprises the 1-way gigabit vehicle-mounted Ethernet and the 6-way hundred-megabyte vehicle-mounted Ethernet, and the adapter module is used for being connected with the main control module in a board-to-board pin arrangement mode.

2. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: the power supply module comprises two power supply units, wherein the first power supply unit adopts a PW2163 power supply management chip and supports 12V input and 5V output; the second power supply unit adopts a TPS650061 power management chip, supports 5V input and 3.3V, 1.8V and 1.2V output, wherein the output of PW2163 is used as the input of TPS 650061.

3. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: 5 paths of 6 paths of hundred million vehicle-mounted Ethernet in the vehicle-mounted Ethernet switch module are configured to be 100BASE-T1, and 1 path is configured to be 100 BASE-TX; with a 1-way gigabit ethernet onboard configured as 1000 BASE-T1.

4. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: the 2-way gigabit onboard Ethernet modules are all configured as 1000 BASE-T1.

5. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: the 5G/4G/3G module is provided with an antenna.

6. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: the debugging device also comprises a serial port module for debugging.

7. The vehicular gateway network expansion apparatus supporting multiple networks according to claim 1, wherein: a usb stub module is also included.