Electric car circuit system based on CAN bus and control method thereof

A CAN bus and circuit system technology, applied in electric vehicles, bus networks, collectors, etc., can solve the problems of excessive and thick wire harnesses, numerous components, and complex designs, reducing control wire harnesses and reducing installation. and debugging costs, the effect of simplifying the design

Inactive Publication Date: 2008-07-23
上海中上汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, various electronic control devices in electric vehicles mostly use traditional electrical structure types, which require a large number of connecting control wires, connectors, relays and fuses. Too thick and other shortcomings

Method used

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  • Electric car circuit system based on CAN bus and control method thereof
  • Electric car circuit system based on CAN bus and control method thereof
  • Electric car circuit system based on CAN bus and control method thereof

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Embodiment Construction

[0031] Referring to Figures 1-7, the technical solution of the present invention will be specifically described below through examples, but the present invention is not limited to the following examples.

[0032] As shown in Figure 1, it is a block diagram of the system structure, including the main control and instrument unit, switch unit, analog unit, H-CAN bus unit and L-CAN bus unit. The main controller is the core of the system and is responsible for signal coordination of the system; the instrument cluster includes motor speed, vehicle speed, mileage, motor temperature, motor voltage, motor current, running indicator lights (lights, start signals, etc.), faults Indicator lights, capacitor module voltage, capacitor module temperature and other parameters; photoelectric isolation, isolating switch, CAN bus and main control unit and main control unit of the instrument unit; switching power supply, providing power supply for the main controller and instrument unit.

[0033] ...

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Abstract

The invention relates to a trolley circuit system which is based on CAN bus, which belongs to the technical field of means of transport. A trolley circuit system which is based on CAN bus is characterized in that the invention comprises a main control and instrument unit, a switching value unit, an analog quantity unit, an H-CAN bus unit and an L-CAN bus unit, and the main control and instrument unit is respectively connected with the switching value unit, the analog quantity unit, the H-CAN bus unit and the L-CAN bus unit to communicate through an interface. A trolley circuit system of the invention which is based on a CAN bus adopts a CAN bus technique to substitute traditional electrical control proposal, which utilizes a main control and instrument unite to communicate with a CAN bus node, the analog quantity unit and the switching value device, and the system can be simplified to design, which reduces control conductor wire harness, improves reliability of various electrical control devices, is convenient for repairing and detecting, and lowers installation and debugging cost.

Description

1. Technical field [0001] The invention relates to a tram circuit system based on a CAN bus, which belongs to the technical field of transportation means. 2. Background technology [0002] At present, various electronic control devices in electric vehicles mostly use traditional electrical structure types, which require a large number of connecting control wires, connectors, relays and fuses. Too many shortcomings such as thick. 3. Contents of the invention [0003] The purpose of the present invention is to provide a CAN bus-based electric car circuit system that can make various electric control devices have simple structures, simplified wiring harnesses, improved reliability, and convenient maintenance and detection. [0004] Technical solution of the present invention is as follows: [0005] The electric car circuit system based on the CAN bus of the present invention is special in that it includes a main control and instrument unit, a switch unit, an analog unit, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40B60L1/00
Inventor 谢镕安李宝顺刘兆伟程绍良
Owner 上海中上汽车科技有限公司
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