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Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof

A speed control system, diesel locomotive technology, applied in the direction of machines/engines, mechanical equipment, fuel injection pumps, etc., can solve the problems of different speeds and output states of diesel engines, reduce maintenance costs, make up for system errors, and high measurement accuracy Effect

Active Publication Date: 2013-11-27
CRRC QISHUYAN CO LTD
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Problems solved by technology

[0004] This feature leads to the following disadvantages: due to the differences in on-board microcomputer components, the output states of different microcomputers may be different when the microcomputer settings are the same; The speed at the final steady state of the lower diesel engine may be different

Method used

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  • Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof
  • Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof
  • Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof

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Embodiment Construction

[0032] Such as figure 1 As shown, a diesel locomotive diesel engine closed-loop speed regulation system includes a controller 1, an intelligent display 2, an on-board microcomputer 3, a diesel engine speed control board 4, an EFI controller 5, a traction fan speed sensor-6 and a traction fan Speed ​​sensor two 7.

[0033] The vehicle-mounted microcomputer 3 is the control core, and the vehicle-mounted microcomputer 3 is externally connected with a controller 1 , an intelligent display 2 and a diesel engine speed control board 4 . The controller 1 is used to set the target gear of the diesel engine, the intelligent display 2 is used to display the system parameters, and can participate in the selection of the fan speed signal, and the intelligent display 2 is used to display the system parameters, and can participate in the selection of the fan speed signal s Choice. The diesel engine speed control board 4 is externally connected with an EFI controller 5. The diesel engine s...

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Abstract

The invention relates to the technical field of electric transmission systems of internal combustion engines, in particular to a diesel engine closed loop speed regulation system of a diesel locomotive and a speed regulation method thereof. A vehicle-mounted microcomputer serves as the core, a controller, an intelligent displayer and a diesel speed regulation plate are externally connected with the vehicle-mounted microcomputer, the diesel speed regulation plate is externally connected with an electronic injection controller, and two traction ventilator rotation speed sensors are further arranged on the vehicle-mounted microprocessor to form a dual backup system. The diesel adopts a dual backup sensor system to judge the current rotation speed, the control mode can be automatically switched between a regular mode and a closed loop mode by adding a feedback control loop, and better reliability and higher rotation speed control accuracy can be obtained.

Description

technical field [0001] The invention relates to the technical field of internal-combustion electromechanical transmission systems, in particular to a closed-loop speed regulation system and a speed regulation method for diesel engines of diesel locomotives. Background technique [0002] In traditional diesel locomotives, the existing diesel speed regulation methods are as follows: 1. The on-board microcomputer outputs digital signals to control the stepping motor, and the position of the fuel supply rack is changed by the stepping motor to adjust the diesel engine speed. The relationship between the number of motor steps is fixed. 2. The vehicle-mounted microcomputer provides gear position signals to the electronic governor or EFI controller through digital output or communication lines, and the electronic governor or EFI controller adjusts the diesel engine speed according to the preset gear / rotation speed correspondence. 3. The vehicle-mounted microcomputer sends the spee...

Claims

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Application Information

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IPC IPC(8): F02D1/02
Inventor 束昊昱陈卫孙宇
Owner CRRC QISHUYAN CO LTD
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