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Closed-loop speed regulation system and speed regulation method of diesel locomotive diesel engine

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 improve reliability Effect

Active Publication Date: 2016-01-27
CRRC QISHUYAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Closed-loop speed regulation system and speed regulation method of diesel locomotive diesel engine
  • Closed-loop speed regulation system and speed regulation method of diesel locomotive diesel engine
  • Closed-loop speed regulation system and speed regulation method of diesel locomotive diesel engine

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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 internal-combustion electromechanical transmission systems, in particular to a closed-loop speed regulation system and a speed regulation method for a diesel locomotive diesel engine. The speed board is externally connected with an EFI controller, and the on-board microcomputer is also equipped with two traction fan speed sensors to form a dual backup system. The determination of the current speed of the diesel engine in the present invention adopts a double backup sensor system, adds a feedback control link, and the control mode can be automatically switched between the conventional mode and the closed-loop mode, and has better reliability and higher speed control precision.

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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Patent Type & Authority Patents(China)
IPC IPC(8): F02D1/02
Inventor 束昊昱陈卫孙宇
Owner CRRC QISHUYAN CO LTD
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