WO2015085833A1 - Diesel locomotive controller self-check circuit and method - Google Patents

Diesel locomotive controller self-check circuit and method Download PDF

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WO2015085833A1
WO2015085833A1 PCT/CN2014/089395 CN2014089395W WO2015085833A1 WO 2015085833 A1 WO2015085833 A1 WO 2015085833A1 CN 2014089395 W CN2014089395 W CN 2014089395W WO 2015085833 A1 WO2015085833 A1 WO 2015085833A1
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channel
controller
adlc
self
signal
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PCT/CN2014/089395
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French (fr)
Chinese (zh)
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管明华
姜宝建
蔡志伟
李显锋
高磊
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中国北车集团大连机车车辆有限公司
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Priority to AU2014265102A priority Critical patent/AU2014265102A1/en
Priority to NZ702198A priority patent/NZ702198A/en
Publication of WO2015085833A1 publication Critical patent/WO2015085833A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to a self-detection circuit and a method for a diesel locomotive controller, and belongs to the technical field of railway locomotives.
  • the diesel locomotive controller is the main control system of diesel locomotives. It mainly undertakes tasks such as speed control of diesel locomotive diesel engine, locomotive load control, operation parameter detection and control. Multiple control boards in the chassis coordinate work at the same time to achieve control functions. Each control board has a frequency input, a digital input, an analog input, an excitation output, a digital output, an analog output, and an RS485 channel. In order to ensure the quality and reliability of the controller, it must be functionally tested before leaving the factory.
  • the signal detecting device provides a corresponding signal for each input, and detects each output signal through an indicator light and an oscilloscope. Due to the large number and variety of channels involved, the inspectors have a large workload and low efficiency, which is easy to introduce human error, affecting the test results, and easily lead to missed inspection.
  • the object of the present invention is to overcome the above deficiencies of the prior art and to provide a self-detecting circuit and method for a diesel locomotive controller.
  • the object of the present invention is achieved by a self-detecting circuit for a diesel locomotive controller, characterized in that after the PWM channel of the diesel locomotive controller is connected to the FI channel, the resistor is connected to the 110V power supply, and the DO channel is connected to the DI channel.
  • the AO channel is connected to the AI channel through a resistor, the CAN bus channel is connected to the CAN bus channel of the host computer, and the RS485 channel is connected to the RS485 channel of the host computer.
  • a method for self-detection of a diesel locomotive controller using the above circuit characterized in that the following steps are taken:
  • the controller receives the instruction of the upper computer
  • the controller sets the output of the PWM, DO, and AO channels according to the CAN message
  • the controller sends the FI, DI, and AI detection results to the PC through the CAN bus channel;
  • the host computer sends a life signal to the controller through RS485;
  • the controller After receiving the vital signal, the controller returns the vital signal to the upper computer through RS485;
  • the upper computer displays and compares the transmitted and received vital signals
  • the tester observes the comparison result and can judge whether the self-test is normal.
  • the solution of the invention utilizes the channel type and characteristics of the microcomputer controller, and through the circuit connection and the use of the self-test program, the microcomputer controller can realize the hardware and channel self-checking function of the microcomputer controller, instead of the original manual detection mode, greatly Improve the detection efficiency and detection accuracy, and provide a reliable test method for the fault diagnosis and maintenance of the microcomputer controller.
  • FIG. 1 is a schematic view showing the principle of a self-detecting circuit of a diesel locomotive controller according to an embodiment of the present invention.
  • Figure 2 is a schematic diagram of the circuit connecting the PWM channel and the FI channel.
  • Figure 3 is a schematic diagram of the circuit connecting the DO channel and the DI channel.
  • Figure 4 is a logic block diagram of the system operation principle.
  • Figure 5 is a flow chart of the controller self-test software.
  • the diesel locomotive controller of the present embodiment is self-detecting circuit, and the PWM channel of the controller ADLC is connected to the FI channel, and then connected to the 110V power supply through a resistor, and the DO channel is connected to the DI channel, and then connected to the DI channel through a resistor.
  • the self-checking method of the diesel locomotive controller self-detecting method of the present embodiment is to perform self-test by interconnecting the existing electrical passages of the diesel locomotive controller ADLC.
  • the PWM channel and the FI channel are interconnected and tested.
  • the FI channel detects the response frequency
  • the DO channel and the DI channel interconnect and measure each other, the DO channel outputs the level signal
  • the DI channel detects the level signal
  • the AO channel and the AI The channel interconnects the mutual measurement, the AO channel outputs the analog signal
  • the AI channel detects the analog signal
  • the CAN bus channel is connected to the CAN channel of the host PC (using the USB extended CAN channel), receives the PC command, and the microcontroller ADLC is based on the CAN.
  • the message sets the output of the PWM, DO, and AO channels.
  • the ADLC sends the FI, DI, and AI detection results to the PC through the CAN bus channel.
  • the RS485 channel is connected to the RS485 channel of the PC, and the host computer sends the life signal to the ADLC through the RS485. (The number is increased regularly).
  • the ADLC After receiving the vital signal, the ADLC returns the vital signal to the PC through RS485.
  • the PC displays and compares the transmitted and received vital signals.
  • the tester sends the host computer test program and sends the test Send the relevant instructions, observe the return results, and determine whether the self-test is normal.
  • Block 5.2 After the system is booted, it first enters block 5.2 to receive PC control commands over the CAN bus. Go to Box 5.3 and set the PWM frequency, DO channel level, and AO analog quantity according to the PC control commands. Going to block 5.4, the control FI detects the received frequency signal, the DI detects the level signal, and the AI detects the analog signal; and proceeds to block 5.5, and returns the detection result to the PC via the CAN bus. Go to box 5.6 to detect the vital signal sent by the PC through the RS485 channel. Go to box 5.7 and return the detected vital signal to the PC via RS485.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Safety Devices In Control Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

A diesel locomotive controller (ADLC) self-check circuit and method. In the ADLC, a PMW channel is connected to an FI channel, a DO channel is connected to a DI channel, and an AO channel is connected to an AI channel. A CAN bus channel of the ADLC is connected to a CAN bus channel of a host computer (PC), and an RS485 channel of the ADLC is connected to an RS485 of the PC. The ADLC sets, on the basis of a CAN message sent by the PC, the output of the PWM, DO, and AO channels, and then sends to the PC FI, DI, and AI check results via the CAN bus channel. The PC sends to the ADLC a life signal via the RS485, and, upon receiving said signal, the ADLC sends back the signal to the PC via the RS485, then the PC displays and compares the sent and received signals. Replacing current manual-check models, the present invention greatly improves check effectiveness and accuracy, while providing reliable testing means for controller malfunction diagnosis and repair.

Description

内燃机车控制器自检测电路及方法Self-detection circuit and method for diesel locomotive controller 技术领域Technical field
本发明涉及一种内燃机车控制器自检测电路及方法,属于铁路机车技术领域。The invention relates to a self-detection circuit and a method for a diesel locomotive controller, and belongs to the technical field of railway locomotives.
背景技术Background technique
内燃机车控制器是内燃机车的主控系统，主要担负内燃机车柴油机调速控制、机车负荷控制、运行参数检测、控制等任务。机箱内的多块控制板同时协调工作，实现控制功能。每块控制板具有频率量输入、开关量输入、模拟量输入、励磁输出、开关量输出、模拟量输出、RS485通道。为了确保控制器的质量和可靠性，出厂前必须对其进行功能测试。在现有技术中，为了对所有通道进行功能检测，需要搭建控制板试验台，配置大量专用的开关量(可变)、频率量(可调)、模拟量(可调)信号源，购置专用的信号检测装置，为每一路输入提供相应的信号，并通过指示灯、示波器检测每一路输出信号。由于涉及通道数量、种类繁多，检测人员工作量大、效率低，容易引入人为误差，影响检测结果，且容易造成漏检。The diesel locomotive controller is the main control system of diesel locomotives. It mainly undertakes tasks such as speed control of diesel locomotive diesel engine, locomotive load control, operation parameter detection and control. Multiple control boards in the chassis coordinate work at the same time to achieve control functions. Each control board has a frequency input, a digital input, an analog input, an excitation output, a digital output, an analog output, and an RS485 channel. In order to ensure the quality and reliability of the controller, it must be functionally tested before leaving the factory. In the prior art, in order to perform function detection on all channels, it is necessary to construct a control board test bench, and configure a large number of dedicated switching (variable), frequency (adjustable), analog (adjustable) signal sources, and purchase dedicated The signal detecting device provides a corresponding signal for each input, and detects each output signal through an indicator light and an oscilloscope. Due to the large number and variety of channels involved, the inspectors have a large workload and low efficiency, which is easy to introduce human error, affecting the test results, and easily lead to missed inspection.
发明内容Summary of the invention
本实发明的目的就是克服上述现有技术之不足，提供一种内燃机车控制器自检测电路及方法。The object of the present invention is to overcome the above deficiencies of the prior art and to provide a self-detecting circuit and method for a diesel locomotive controller.
本发明的目的是这样实现的：一种内燃机车控制器自检测电路，其特征在于内燃机车控制器的PWM通道与FI通道相连后，通过电阻接至110V电源，DO通道与DI通道相连后，通过电阻接至110V电源，AO通道与AI通道相连，CAN总线通道与上位机的CAN总线通道相连，RS485通道与上位机的RS485通道相连。The object of the present invention is achieved by a self-detecting circuit for a diesel locomotive controller, characterized in that after the PWM channel of the diesel locomotive controller is connected to the FI channel, the resistor is connected to the 110V power supply, and the DO channel is connected to the DI channel. The AO channel is connected to the AI channel through a resistor, the CAN bus channel is connected to the CAN bus channel of the host computer, and the RS485 channel is connected to the RS485 channel of the host computer.
一种利用上述电路进行内燃机车控制器自检测的方法，其特征在于采取下列步骤：A method for self-detection of a diesel locomotive controller using the above circuit, characterized in that the following steps are taken:
A.控制器接收上位机的指令；A. The controller receives the instruction of the upper computer;
B.控制器根据CAN报文，设定PWM、DO、AO通道的输出；B. The controller sets the output of the PWM, DO, and AO channels according to the CAN message;
C.控制器通过CAN总线通道将FI、DI、AI检测结果发送给PC； C. The controller sends the FI, DI, and AI detection results to the PC through the CAN bus channel;
D.上位机通过RS485向控制器发送生命信号；D. The host computer sends a life signal to the controller through RS485;
E.控制器接收到该生命信号后，再通过RS485将该生命信号返回给上位机；E. After receiving the vital signal, the controller returns the vital signal to the upper computer through RS485;
F.上位机显示并对比发送和接收到的生命信号；F. The upper computer displays and compares the transmitted and received vital signals;
G.检测人员观察对比结果，即可判断自检是否正常。G. The tester observes the comparison result and can judge whether the self-test is normal.
本发明的方案，利用了微机控制器的通道类型和特点，通过电路连接和使用自检程序，配合上位机可以实现微机控制器硬件、通道自检功能，替代原有的人工检测模式，极大地提高了检测效率和检测准确性，也对微机控制器故障诊断、维修提供了可靠的测试手段。The solution of the invention utilizes the channel type and characteristics of the microcomputer controller, and through the circuit connection and the use of the self-test program, the microcomputer controller can realize the hardware and channel self-checking function of the microcomputer controller, instead of the original manual detection mode, greatly Improve the detection efficiency and detection accuracy, and provide a reliable test method for the fault diagnosis and maintenance of the microcomputer controller.
附图说明DRAWINGS
图1为本发明实施例的内燃机车控制器自检测电路原理示意图。1 is a schematic view showing the principle of a self-detecting circuit of a diesel locomotive controller according to an embodiment of the present invention.
图2为PWM通道与FI通道相连电路示意图。Figure 2 is a schematic diagram of the circuit connecting the PWM channel and the FI channel.
图3为DO通道与DI通道相连电路示意图。Figure 3 is a schematic diagram of the circuit connecting the DO channel and the DI channel.
图4为系统运行原理逻辑框图。Figure 4 is a logic block diagram of the system operation principle.
图5为控制器自检软件流程图。Figure 5 is a flow chart of the controller self-test software.
具体实施方式detailed description
参看附图1～3，本实施例的内燃机车控制器自检测电路，控制器ADLC的PWM通道与FI通道相连后，通过电阻接至110V电源，DO通道与DI通道相连后，通过电阻接至110V电源,AO通道与AI通道直接导线互联,CAN总线通道与PC的CAN通道直接导线相连(采用USB扩展的CAN通道),RS485通道与PC的RS485通道直接导线相连。Referring to Figures 1 to 3, the diesel locomotive controller of the present embodiment is self-detecting circuit, and the PWM channel of the controller ADLC is connected to the FI channel, and then connected to the 110V power supply through a resistor, and the DO channel is connected to the DI channel, and then connected to the DI channel through a resistor. 110V power supply, AO channel and AI channel direct wire interconnection, CAN bus channel and PC CAN channel direct wire connection (using USB extended CAN channel), RS485 channel and PC RS485 channel direct wire connection.
本实施例的内燃机车控制器自检测方法，其基本原理是利用内燃机车控制器ADLC现有的电气通道，通过相互连接，进行自检。PWM通道与FI通道互联互测，当PWM通道输出时，FI通道检测响应的频率；DO通道与DI通道互联互测，DO通道输出电平信号，DI通道检测该电平信号；AO通道与AI通道互联互测，AO通道输出模拟量信号，AI通道检测该模拟量信号；CAN总线通道与上位机PC的CAN通道(采用USB扩展的CAN通道)相连，接收PC指令，微控制器ADLC根据CAN报文，设定PWM、DO、AO通道的输出，同时ADLC通过CAN总线通道将FI、DI、AI检测结果发送给PC；RS485通道与PC的RS485通道相连，上位机通过RS485向ADLC发送生命信号(定时增加的数字)，ADLC接收到该生命信号后，再通过RS485将该生命信号返回给PC，PC显示、对比发送和接收到的生命信号。检测人员通过运行上位机检测程序，发 送相关指令，观察返回结果，判断自检是否正常。The self-checking method of the diesel locomotive controller self-detecting method of the present embodiment is to perform self-test by interconnecting the existing electrical passages of the diesel locomotive controller ADLC. The PWM channel and the FI channel are interconnected and tested. When the PWM channel is output, the FI channel detects the response frequency; the DO channel and the DI channel interconnect and measure each other, the DO channel outputs the level signal, the DI channel detects the level signal; the AO channel and the AI The channel interconnects the mutual measurement, the AO channel outputs the analog signal, and the AI channel detects the analog signal; the CAN bus channel is connected to the CAN channel of the host PC (using the USB extended CAN channel), receives the PC command, and the microcontroller ADLC is based on the CAN. The message sets the output of the PWM, DO, and AO channels. At the same time, the ADLC sends the FI, DI, and AI detection results to the PC through the CAN bus channel. The RS485 channel is connected to the RS485 channel of the PC, and the host computer sends the life signal to the ADLC through the RS485. (The number is increased regularly). After receiving the vital signal, the ADLC returns the vital signal to the PC through RS485. The PC displays and compares the transmitted and received vital signals. The tester sends the host computer test program and sends the test Send the relevant instructions, observe the return results, and determine whether the self-test is normal.
参看附图4，系统启动后首先进入框5.2，通过CAN总线接收PC控制命令。进入框5.3，按照PC控制命令设置PWM频率、DO通道电平，以及AO模拟量。进入框5.4，控制FI检测接收到的频率信号，DI检测电平信号，AI检测模拟量信号；进入框5.5，将检测结果通过CAN总线返回给PC。进入框5.6，检测PC通过RS485通道发来的生命信号。进入框5.7，将检测到的生命信号通过RS485返回给PC。Referring to Figure 4, after the system is booted, it first enters block 5.2 to receive PC control commands over the CAN bus. Go to Box 5.3 and set the PWM frequency, DO channel level, and AO analog quantity according to the PC control commands. Going to block 5.4, the control FI detects the received frequency signal, the DI detects the level signal, and the AI detects the analog signal; and proceeds to block 5.5, and returns the detection result to the PC via the CAN bus. Go to box 5.6 to detect the vital signal sent by the PC through the RS485 channel. Go to box 5.7 and return the detected vital signal to the PC via RS485.
参看附图5所示的控制器ADLC的自检软件流程图。框6.1定时计入定时中断服务程序。进入框6.2，通过CAN接收PC控制命令。进入框6.3，按命令设置PWM输出的频率。进入框6.4，按命令设置DO输出的电平(高电平、低电平)。进入框6.5，按命令设置AO输出的模拟量。进入框6.6，检测FI通道的频率。进入框6.7，检测DI通道的电平。进入框6.8，检测AI通道的模拟量。进入框6.9，将上述检测结果通过CAN总线发送给PC。进入框6.10，通过RS485通道检测PC发送的生命信号。进入框6.11，通过RS485通道将上述生命信号返回给PC。进入框6.12，完成定时中断服务程序，等待下次中断。 Refer to the self-test software flow chart of the controller ADLC shown in FIG. Box 6.1 is clocked into the timer interrupt service routine. Proceed to block 6.2 to receive PC control commands via the CAN. Go to box 6.3 and set the frequency of the PWM output as commanded. Go to box 6.4 and set the level of the DO output (high level, low level) as commanded. Go to box 6.5 and press the command to set the analog output of the AO output. Go to block 6.6 to detect the frequency of the FI channel. Go to block 6.7 to detect the level of the DI channel. Go to block 6.8 to detect the analog quantity of the AI channel. Going to block 6.9, the above detection result is sent to the PC through the CAN bus. Go to box 6.10 and check the life signal sent by the PC through the RS485 channel. Go to box 6.11 and return the above vital signal to the PC via the RS485 channel. Go to box 6.12 to complete the timer interrupt service routine and wait for the next interrupt.

Claims (2)

  1. 一种内燃机车控制器自检测电路，其特征在于内燃机车控制器的PWM通道与FI通道相连后，通过电阻接至110V电源，DO通道与DI通道相连后，通过电阻接至110V电源，AO通道与AI通道相连，CAN总线通道与上位机的CAN总线通道相连，RS485通道与上位机的RS485通道相连。A self-detecting circuit for a diesel locomotive controller is characterized in that a PWM channel of a diesel locomotive controller is connected to a FI channel, and is connected to a 110V power supply through a resistor, and the DO channel is connected to the DI channel, and then connected to a 110V power supply through a resistor, the AO channel Connected to the AI channel, the CAN bus channel is connected to the CAN bus channel of the host computer, and the RS485 channel is connected to the RS485 channel of the host computer.
  2. 一种利用权利要求1所述电路进行内燃机车控制器自检测的方法，其特征在于采取下列步骤：A method for self-detecting a diesel locomotive controller using the circuit of claim 1 wherein the following steps are taken:
    A.控制器接收上位机的指令；A. The controller receives the instruction of the upper computer;
    B.控制器根据CAN报文，设定PWM、DO、AO通道的输出；B. The controller sets the output of the PWM, DO, and AO channels according to the CAN message;
    C.控制器通过CAN总线通道将FI、DI、AI检测结果发送给PC；C. The controller sends the FI, DI, and AI detection results to the PC through the CAN bus channel;
    D.上位机通过RS485向控制器发送生命信号；D. The host computer sends a life signal to the controller through RS485;
    E.控制器接收到该生命信号后，再通过RS485将该生命信号返回给上位机；E. After receiving the vital signal, the controller returns the vital signal to the upper computer through RS485;
    F.上位机显示并对比发送和接收到的生命信号；F. The upper computer displays and compares the transmitted and received vital signals;
    G.检测人员观察对比结果，判断自检是否正常。 G. The inspector observes the comparison result and determines whether the self-test is normal.
PCT/CN2014/089395 2013-12-13 2014-10-24 Diesel locomotive controller self-check circuit and method WO2015085833A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2014265102A AU2014265102A1 (en) 2013-12-13 2014-10-24 A circuit and method for self-detecting of controller of diesel locomotive
NZ702198A NZ702198A (en) 2013-12-13 2014-10-24 A circuit and method for self-detecting of controller of diesel locomotive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310684100.6A CN103699113B (en) 2013-12-13 2013-12-13 Circuit and method for self-detection of ADLC (advanced diesel locomotive controller)
CN201310684100.6 2013-12-13

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