Digitization hierarchical network control architecture applicable for distributed control of electric vehicle

A distributed control and layered network technology, applied in the direction of bus network, circuit or fluid pipeline, electrical components, etc., can solve the problems of low overall level and complex overall structure of the control system, and achieve clear layers, easy actual wiring, The effect of high reliability

Inactive Publication Date: 2011-06-29
TIANJIN QINGYUAN ELECTRIC VEHICLE
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  • Abstract
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Problems solved by technology

Although a certain amount of technical accumulation has been formed in the vehicle control, motor control and battery management of electric vehicles at home and abroad, and some breakthroughs have been made in some key technologies, the overall level is low, especially the overall structure of the control system is relatively complex.

Method used

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  • Digitization hierarchical network control architecture applicable for distributed control of electric vehicle
  • Digitization hierarchical network control architecture applicable for distributed control of electric vehicle
  • Digitization hierarchical network control architecture applicable for distributed control of electric vehicle

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Embodiment Construction

[0010] Further illustrate the present invention below in conjunction with embodiment and accompanying drawing.

[0011] Such as figure 1 As shown, the low-speed CAN bus can be divided into four categories according to the function: gateway, car light control system, car door control system and information display. On the low-speed CAN bus, it is used by the nodes on the low-speed bus to realize the gateway function of information exchange. The VFD instrument node displays and outputs the vehicle status information through the VFD instrument. The door system and lamp system nodes collect signals related to the node and combine the CAN bus data to determine their own working status, and at the same time issue their working status and control instructions to the high-speed CAN bus, thus forming a body network control system. The high-speed CAN of the present invention conforms to the CAN2.0B extended format, and the baud rate is 250KB / s or higher, and the low-speed CAN conforms...

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Abstract

The invention provided a digitization hierarchical network control architecture applicable for distributed control of an electric vehicle. The digitization hierarchical network control architecture is formed by combining a power assembly distributed control system based on a high-speed controller area network (CAN), a vehicle body comfortableness control system based on a low-speed bus, a wireless communication network and a battery management system subnetwork. According to the invention, a CAN bus application layer protocol and interface specifications are designed according to bus control, so overall architecture hierarchy is clear and simple, practical wiring is easy and high in reliability, and the function of control architecture can be easily expanded by utilizing the characteristics of the bus.

Description

technical field [0001] The invention belongs to a digital network control system, in particular to a digital layered network control system suitable for distributed control of electric vehicles. Background technique [0002] The electronic system is one of the key technologies of electric vehicles. The number of ECUs used is increasing, and the functions are becoming more and more complex, including vehicle control ECU, engine control ECU, transmission control ECU, brake control ECU and battery management ECU, etc. Although a certain amount of technical accumulation has been formed in the vehicle control, motor control and battery management of electric vehicles at home and abroad, and some breakthroughs have been made in some key technologies, the overall level is low, especially the overall structure of the control system is relatively complex. . Contents of the invention [0003] The purpose of the present invention is to provide a digital layered network control syste...

Claims

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Application Information

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IPC IPC(8): H04W4/04H04L12/40B60R16/023
Inventor 赵春明周能辉李磊张松波李庆
Owner TIANJIN QINGYUAN ELECTRIC VEHICLE
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