Vehicular independent gateway

Abstract

The invention discloses a vehicular independent gateway which is characterized in that a main control module is respectively connected with a high-speed CAN (controller area network) bus module, a low-speed CAN bus module and an LIN (local interconnect network) bus module, and a power source module supplies power for the main control module. By adopting the circuit structure, the vehicular independent gateway has the advantages that 1, network bus cross-platform integration becomes simple, convenient and quick, influences on other subnets caused by subnet upgrading can be eliminated, and a network framework / platform can be maintained relatively stable and unchanged; 2, the vehicular independent gateway is low in production cost and suitable for popularization on more vehicular types; 3, the vehicular independent gateway is capable of flexibly handling emergencies during vehicular type network bus development and filtering and blocking outside diagnosis interferences, and safety of an electronic system of a whole vehicle is improved; and 4, program refreshing of an ECU (electronic control unit) of the whole vehicle can be realized through the independent gateway, and the independent gateway serves as a safety supervisor in a network bus.

Description

technical field [0001] The invention relates to the field of automobile communication, in particular to an independent gateway for automobiles. Background technique [0002] With increasingly stringent regulatory requirements for automobiles in terms of emissions, energy consumption and safety performance, as well as customers' increasing requirements for automobile comfort, modern automobiles use a large number of electronic control units to control their normal driving. When the control system becomes complex, the connection of signal lines for exchanging data will become complicated, and the production cost will also be increased. The application of CAN BUS technology can solve this problem. It not only reduces the number of wiring harnesses and the number of pins of the controller interface, but also realizes online programming, online diagnosis, and even multiple controllers working together more simply and quickly. function, which can improve vehicle function scalabil...

AI Technical Summary

Problems solved by technology

At present, most of the gateways are integrated gateways, which are greatly affected by other subnets and are not stable enough; some high-end models have independent gateways, but the cost is relatively high, which is not conducive to popularization and promotion

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