CN213042147U

CN213042147U - Vehicle-mounted gateway system and automobile

Info

Publication number: CN213042147U
Application number: CN202022466532.8U
Authority: CN
Inventors: 王永珠; 刘素利; 李家兴; 刘维; 张其; 郑远冬; 宋四云
Original assignee: Chongqing Changan New Energy Automobile Technology Co Ltd
Current assignee: Deep Blue Automotive Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-04-23
Anticipated expiration: 2030-10-30

Abstract

The utility model provides an on-vehicle gateway system and car through set up an adapter between CAN bus and gateway, solves the problem that CAN not acquire the data on the multiclass CAN bus simultaneously among the prior art, CAN solve communication data control, collection, diagnosis, demarcation and brushing demand such as when the operation of after-sales car is maintained, and satisfy information security and industrialization cost-effective requirement after the volume production. The vehicle-mounted gateway system comprises: a gateway, different types of vehicle CAN buses; each type of vehicle-mounted CAN bus is connected through an adapter with at least three connectors, and at least one connector in the adapter is used as a reserved connector connected with external data acquisition equipment, parameter calibration equipment or diagnosis equipment.

Description

Vehicle-mounted gateway system and automobile

Technical Field

The utility model is used for there is central gateway or possesses the automobile communication framework system of gateway function's domain controller, mainly uses in demands such as control, collection, diagnosis, demarcation and brush-write of whole car system communication data, specifically is an on-vehicle gateway system and car.

Background

To original whole car electron electrical architecture, the OBD diagnosis interface that sets up on the vehicle is connected with various CAN buses on the vehicle respectively, and the OBD diagnostic device links to each other through connecting this OBD diagnosis interface, and the OBD diagnostic device CAN read the CAN data on multiple kind of CAN bus simultaneously.

With the gradual development of intelligent networked automobiles, the electronic and electrical architecture of the whole automobile is gradually changed from a distributed architecture to a functional domain and a regional high-integration architecture, controllers are further integrated, communication interfaces are gradually concentrated, and a central gateway or a domain controller is responsible for information exchange between domains or inside and outside the domains. Due to the requirement of information security of the whole automobile and the requirement of industrialization cost, the debugging communication interface in the research and development stage is cancelled after mass production, but the automobile after sale still needs to be maintained, and the cancelled debugging interface brings great inconvenience to the operation and maintenance after mass production. In the prior art, in order to protect information security, an OBD diagnostic instrument is not allowed to be directly connected with each path of CAN bus aiming at an improved electronic and electrical architecture of a finished automobile; the OBD diagnostic interface on the vehicle is designed to be connected with only one output interface of the gateway, and if the OBD diagnostic instrument needs to acquire data on a certain type of CAN bus, the gateway needs to perform internal switching, so that the data on the CAN bus of the corresponding type are output to the OBD diagnostic instrument; that is, the OBD diagnostic CAN only obtain one type of CAN bus data at a time.

SUMMERY OF THE UTILITY MODEL

The utility model provides an on-vehicle gateway system and car through set up an adapter between CAN bus and gateway, solves the problem that CAN not acquire the data on the multiclass CAN bus simultaneously among the prior art, CAN solve communication data control, collection, diagnosis, demarcation and brushing demand such as when the operation of after-sales car is maintained, and satisfy information security and industrialization cost-effective requirement after the volume production.

The technical scheme of the utility model is that:

the embodiment of the utility model provides an on-vehicle gateway system, include: a gateway, different types of vehicle CAN buses; each type of vehicle-mounted CAN bus is connected through an adapter with at least three connectors, and at least one connector in the adapter is used as a reserved connector connected with external data acquisition equipment, parameter calibration equipment or diagnosis equipment.

Preferably, each adapter all has outer connecting plug-in, gateway connection connector and CAN bus connection connector, and wherein, gateway connection connector is connected with the part termination plug-in of gateway, and CAN bus connection connector is connected with the CAN bus pencil connector of corresponding type.

The embodiment of the utility model provides a still provide an automobile, including foretell vehicle-mounted gateway system.

The utility model has the advantages that:

by utilizing the vehicle-mounted gateway system, the OBD diagnostic instrument is connected through the external connecting plug-in of the adapter connected with the various CAN buses, and CAN acquire data on the various CAN buses simultaneously; alternatively, when the adapter has multiple external connection inserts, the multiple external connection inserts may be connected to multiple OBD diagnostic instruments simultaneously. Through the setting mode, the problem that the OBD diagnostic instrument cannot simultaneously acquire data of multiple types of CAN buses due to the fact that the OBD interface is not allowed to be simultaneously connected with the multiple types of CAN buses and established in the related standards which are not implemented CAN be solved. Meanwhile, the structure can also cancel the OBD interface which is directly connected with the gateway and is designed in the prior art.

Drawings

Fig. 1 is a connection diagram of a gateway and a CAN bus that are not connected to an adapter in the prior art;

fig. 2 is a connection diagram of a gateway of an access adapter and a CAN bus in this embodiment;

figure 3 is a first schematic diagram of a variation of the adapter;

fig. 4 is a second modified view of the adapter.

Detailed Description

The gateway component which is not connected to the T-adapter is connected to the vehicle harness as shown in fig. 1, and at this time, the gateway component terminating plug 2 is directly connected to the vehicle harness terminating plug 3, and is connected to the CAN communication network of the gateway 1, and if necessary, the gateway component is subjected to route conversion through the gateway 1. Because the gateway 1 is directly connected with the wire harness, external data acquisition equipment, parameter calibration equipment, diagnosis equipment and the like cannot be accessed, and if the accessed component is connected with the plug-in 2 or the wire harness is connected with the plug-in 3, the gateway 1 of the vehicle cannot work normally.

Referring to fig. 2, the present embodiment provides an in-vehicle gateway system, including: a gateway 1, different types of vehicle CAN buses 7; each type of vehicle-mounted CAN bus 7 is connected through an adapter 4 at least provided with three connectors, and at least one connector in the adapter 4 is used as a reserved connector connected with external data acquisition equipment, parameter calibration equipment or diagnosis equipment.

As shown in fig. 3 and 4 in the present embodiment, each of the adapters 4 has an external connection plug 8, a gateway connection plug 3, and a CAN bus connection plug 5, wherein the gateway connection plug 3 is connected to the component termination plug 2 of the gateway 1, and the CAN bus connection plug 5 is connected to the corresponding type of CAN bus harness plug 6.

The CAN bus connecting connector 5 is connected with the CAN bus wiring harness connecting plug-in 6, so that the normal work of the vehicle gateway 1 is ensured. Meanwhile, the external connecting plug-in 8 of the adapter 4 is used for switching out the whole vehicle communication network signal passing through the gateway 1 and supplying external data acquisition equipment, parameter calibration equipment or diagnosis equipment to perform other operations, and the normal work of the vehicle gateway 1 is not influenced.

The adapter 4 may also be called a T-adapter or a Y-adapter, and the external connection plug-in 8 and the CAN bus connection plug-in 5 connected thereto may be adjusted as needed, for example, fig. 3 shows a specific application scenario where the adapter 4 has 3 plug-ins, and at this time, one external connection plug-in 8 is connected to one external connection device. Fig. 4 is a specific application scenario of the adapter 4 having 4 connectors, in this case, the adapter 4 has 2 external connection connectors 8, and when the adapter is multipurpose, a plurality of devices can be externally connected.

In this embodiment, by using the above vehicle-mounted gateway system, the OBD diagnostic apparatus is connected to the external connection plug-in 8 of the adapter 4 connected to multiple types of CAN buses, and CAN simultaneously acquire data on the multiple types of CAN buses; alternatively, when the adapter 4 has multiple external connection inserts 8, the multiple external connection inserts 8 may be connected to multiple OBD diagnostic instruments simultaneously. Through the setting mode, the problem that the OBD diagnostic instrument cannot simultaneously acquire data of multiple types of CAN buses due to the fact that the OBD interface is not allowed to be simultaneously connected with the multiple types of CAN buses and established in the related standards which are not implemented CAN be solved. Meanwhile, the structure can also cancel the OBD interface which is directly connected with the gateway and is designed in the prior art.

The embodiment also provides an automobile comprising the vehicle-mounted gateway system.

Claims

1. An in-vehicle gateway system, comprising: a gateway (1), different types of onboard CAN buses (7); each type of vehicle-mounted CAN bus (7) is connected through an adapter (4) at least provided with three connectors, and at least one connector in the adapter (4) is used as a reserved connector connected with external data acquisition equipment, parameter calibration equipment or diagnosis equipment.

2. A vehicle gateway system according to claim 1, characterized in that each of said adapters (4) has an external connection plug (8), a gateway connection plug (3) and a CAN bus connection plug (5), wherein the gateway connection plug (3) is connected with a component termination plug (2) of the gateway (1) and the CAN bus connection plug (5) is connected with a corresponding type of CAN bus harness plug (6).

3. An automobile, characterized by comprising the vehicular gateway system according to any one of claims 1 or 2.