Network topology structure of comprehensive experiment management rack for vehicle power assembly

Abstract

The invention discloses a network topology structure of a comprehensive experiment management rack for a vehicle power assembly. The network topology structure comprises three CAN network channels and one Ethernet network channel, wherein the three CAN network channels are connected with the Ethernet network channel through two gateways, the CAN-1 network channel comprises a hybrid power assembly system, the CAN-2 network channel comprises a running support system, the CAN-3 network channel comprises an electric dynamometer system, the Ethernet network channel comprises a senior management system, and the senior management system comprises a people-vehicle-road simulation system and a comprehensive information gathering unit connected with the Ethernet network channel as nodes. The network topology structure of the comprehensive experiment management rack for the vehicle power assembly reinforces the communication timeliness, stability and fault tolerance between systems, and an external technology center can remotely monitor the experiment rack, share data with the experiment rack, and the like.

Description

technical field [0001] The invention belongs to the technical field of hybrid vehicle assembly test bench testing, and in particular relates to a field bus and network bus communication system. Background technique [0002] With the increasingly stringent global requirements for vehicle energy saving and emission reduction and the rapid development of the automotive electronics industry, hybrid electric vehicles have received extensive attention and research worldwide. Compared with the ordinary engine test bench, the hybrid vehicle assembly test bench needs to collect more and more complex data, and at the same time, the amount of data interactively transmitted by the bus network is larger. [0003] CN101417634A Chinese patent discloses "a network topology for automobiles", including a CAN network channel and two LIN network channels, and the network channels are connected through a gateway to realize information sharing. The gateway of the CAN network channel and the LIN ...

AI Technical Summary

Problems solved by technology

[0006] The network topology designs in the three Chinese patents CN101417634A, CN201989733U, and CN202641564U do not use an Ethernet bus with remote access function, high data transmission rate, and sufficient bandwidth

This makes the communication rate of the entire network not too high, nor can it effectively handle large flow and high-speed data. If these network topology designs are applied to hybrid test benches with complex bus networks and large amounts of collected data On the other hand, the real-time communication between the various system nodes of the experimental bench is not strong, and the amount of information that can be transmitted on the bus is not large, so the holographic data processing of the experimental bench cannot be effectively realized.

At the same time, because the network topology design in these three Chinese patents does not have remote access functions, the external technology center cannot access and control each system node of the test bench, and this test bench cannot share data of other test benches in real time.

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