Electric locomotive traction control unit and control method

A traction control unit, electric locomotive technology, applied in electrical program control, program control in sequence/logic controllers, locomotives, etc., can solve the problem of high IGBT burnout rate

Active Publication Date: 2014-05-21
CHINA CNR CORPORATION
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Problems solved by technology

[0004] The invention provides an electric locomotive traction control unit and a control method, which are used to solve the problem of high IGBT

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  • Electric locomotive traction control unit and control method
  • Electric locomotive traction control unit and control method
  • Electric locomotive traction control unit and control method

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[0049] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0050] figure 1 It is a schematic structural diagram of an electric locomotive traction control unit provided by an embodiment of the present invention. Such as figure 1 As shown, the traction control unit includes: a DSP chip 10 as a main processing chip, an FPGA chip 20 as a co-processing chip, and processing input and output signals of an electric locomotive to obtain a drive control signal, and send the drive control signal to the FPGA chip 20 of the peripheral processing chip 30. Wherein, the FPGA chip 20 includes: a microprocessor interface 21 for communicating with the DSP chip 10, for receiving a driving control signal, performing fault judgment on the driving control signal, and sending the judgment result to pulse width modulation (Pulse Width Modulation, (Referred to as PWM for short) the fault judgment module 22 of the...

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Abstract

The invention provides an electric locomotive traction control unit and a control method. A peripheral processing chip processes input and output signals of an electric locomotive to acquire a drive control signal. The drive control signal is sent to an FPGA chip. The FPGA chip simultaneously receives a control command sent by a DSP chip used as a main processing chip. The FPGA chip carries out fault judgment on the drive control signal. If a judgment result is that the drive control signal does not have a fault, drive pulse is output to an IGBT in the electric locomotive according to the control command. According to the invention, the FPGA chip judges the drive control signal sent by the control drive pulse; if the FPGA chip judges that the drive control signal does not have a fault, the FPGA chip sends the drive pulse to the IGBT to drive the IGBT to work; if the FPGA chip judges that the drive control signal has a fault, the FPGA stops sending the drive pulse, so as to prevent the IGBT from damage under the condition of a burst fault of the electric locomotive; and the burning rate of the IGBT can be reduced.

Description

technical field [0001] The invention relates to vehicle control technology, in particular to an electric locomotive traction control unit and a control method. Background technique [0002] With the rapid development of the transportation industry, the demand for electric locomotives is also increasing. However, there are relatively few studies on the Central Processing Unit (CPU) of the traction control unit of electric locomotives. At present, the control modes of the electric locomotive traction control unit CPU are mainly divided into three categories: the control mode based on the digital signal processing (DSP) chip as the main processing chip, and the single-chip microcomputer as the cooperative processing chip; the control mode based on Renesas (RENESAS) ) series of chips are used as the main processing chip of the CPU, the single-chip microcomputer is used as the co-processing chip and the DSP-based chip is used as the main processing chip of the CPU, and the Field-...

Claims

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Application Information

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IPC IPC(8): B61C17/00G05B19/04
Inventor 陈铁年徐从谦李婷婷耿辉
Owner CHINA CNR CORPORATION
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