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Controller area network (CAN)-control-based auxiliary control unit for locomotive

An auxiliary control unit and network control technology, applied in the direction of total factory control, total factory control, electrical program control, etc., can solve problems such as real-time performance and poor reliability, and achieve the effect of meeting work requirements and overcoming real-time performance

Inactive Publication Date: 2012-06-13
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention adopts the serial communication bus of the multi-master mode to replace the serial communication bus of the master-slave mode, overcomes the shortcomings of the real-time performance and poor reliability of the system, and meets the working requirements of modern locomotives

Method used

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  • Controller area network (CAN)-control-based auxiliary control unit for locomotive
  • Controller area network (CAN)-control-based auxiliary control unit for locomotive
  • Controller area network (CAN)-control-based auxiliary control unit for locomotive

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Experimental program
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Embodiment Construction

[0013] Such as figure 1 As shown, the locomotive auxiliary control unit based on CAN network control includes CAN communication interface 1, CAN register 2, FPGA control chip 3 and DSP main control chip 4; CAN communication interface 1 and CAN register 2 are mainly for processing input and output The network data input by the module (RIOM) is converted and stored; the FPGA control chip 3 is used for simple processing of the data in the CAN register 2, and the program converts the CAN communication data into the data that can be recognized by the DSP main control chip 4 form, control the logic circuit, and send the data to the DSP main control chip 4 for control processing; the DSP main control chip 4 realizes the logic of controlling the start, stop, emergency mode, and action of the contactor through the CAN bus of the entire auxiliary control unit, and at the same time Send the collected analog and digital values ​​to the main control unit (MPU), feed back the actual contact...

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Abstract

The invention discloses a controller area network (CAN)-control-based auxiliary control unit for a locomotive. The auxiliary control unit consists of a CAN communication interface, a CAN register, a field programmable gate array (FPGA) control chip and a digital signal processor (DSP) master control chip, wherein the CAN communication interface and the CAN register mainly process network data input by an input / output module, and perform data conversion and storage; the FPGA control chip is used for processing and converting information received by the CAN register, driving a plurality of control chips and ensuring the work of the chips; and the DSP master control chip controls the starting, stopping and emergency modes of the whole auxiliary control unit through a CAN bus, and protects an auxiliary control module and a peripheral control circuit. A serial communication bus adopting a master-slave mode is replaced by a serial communication bus adopting a multi-master mode, so that the shortcomings of low real-time performance and reliability of a system are overcome, and the operating requirements of the modern locomotive are met.

Description

technical field [0001] The invention relates to a locomotive auxiliary control unit, in particular to a locomotive auxiliary control unit based on CAN network control. Background technique [0002] The auxiliary control unit of the locomotive is the core part of the auxiliary control system of the locomotive. It is mainly used to supply power to the auxiliary system equipment such as the auxiliary motor, fan, and compressor of the locomotive. At the same time, the voltage, current, and temperature of the auxiliary converter cabinet measured by peripheral sensors , air volume and other sensor signals are transmitted to the locomotive driver's display screen through the locomotive network, which is convenient for the locomotive driver and passengers to deal with various situations in a timely manner. [0003] At present, most of the communication between the auxiliary control unit used by the locomotive and the main control part of the locomotive follows the foreign technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 李东丛巍闫春辉
Owner CRRC DALIAN INST CO LTD
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