Calibration system and control method for speed given signal of diesel locomotive diesel engine
A given signal, diesel locomotive technology, applied in the direction of engine control, fuel injection control, electrical control, etc., can solve the problems of being easily affected by device aging, large cumulative error, and low control accuracy, so as to meet the needs of locomotive operators, Avoid the effect of speed overshoot
Active Publication Date: 2016-01-06
CRRC QISHUYAN CO LTD
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Problems solved by technology
[0007] Of the above two modes, the "normal mode" has disadvantages such as low control accuracy, large cumulative error, and susceptible to device aging; the "closed-loop mode" can make up for the shortcomings of the "conventional mode", but it is easy to form a rotational speed when the diesel engine is running without load. overshoot
In addition, because the "closed-loop mode" control algorithm is relatively complex, and the "normal mode" is relatively simple and clear, locomotive operators often prefer the "normal mode"
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[0032] like figure 1 It is a schematic diagram of the structure of the present invention, a diesel locomotive diesel engine speed given signal calibration system, which consists of a diesel engine speed given signal calibration switch 1, a driver gear handle 2, a vehicle-mounted microcomputer 3, a diesel engine speed control board 4, and an EFI controller 5. The diesel engine speed detection module 6 is composed of a vehicle-mounted microcomputer 3 as the control core. The wires are connected with the driver gear handle 2 and the diesel engine speed detection module 6 respectively, and the vehicle-mounted microcomputer 3 is connected with a diesel engine speed given signal calibration switch 1 through hard wires. The "calibration switch for given signal of diesel engine speed" is actually a 10,000-turn switch, which has two sets of contacts, and can input and output 4 kinds of switching states as shown in Table 1 to the microcomputer. The on-board microcomputer judges the pos...
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The invention relates to the technical field of electric drive systems of diesel locomotives, in particular to a diesel-locomotive diesel engine rotation speed given signal calibration system. The system comprises a diesel engine rotation speed given signal calibration switch, a clutch gear lever, an on-board microcomputer, a diesel engine speed regulating panel, an electronic injection controller and a diesel engine rotation speed detection module. The on-board microcomputer taken as a control core is communicated with the diesel engine speed regulating panel through a bus, the diesel engine speed regulating panel is externally connected with the electronic injection controller, and the on-board microcomputer is communicated with each of the clutch gear lever and the diesel engine rotation speed detection module through a hard wire and additionally connected with the diesel engine rotation speed given signal calibration switch through a hard wire. Through the system, the defects that a conventional mode is low in control precision, large in accumulated error, susceptible to aging of components and the like can be made up, and rotation speed overshoot of no-load operation of a diesel engine in a closed-loop mode is avoided. On the basis of accurate speed reduction of the diesel engine of a diesel locomotive, requirements of locomotive operators are met to the utmost extent.
Description
technical field [0001] The invention relates to the technical field of an electric transmission system of a diesel locomotive, in particular to a calibration system and a control method for a given signal of a rotational speed of a diesel engine of an internal combustion locomotive. Background technique [0002] In the diesel locomotive control system equipped with EFI controller, a very common form of diesel engine speed given signal is PWM wave (Pulse-Width Modulation). The EFI controller adjusts the diesel engine speed according to the pulse width of the PWM signal sent by the host computer. There are two ways for the upper computer to adjust the PWM signal: [0003] (1) Normal mode [0004] The main principle is: the on-board microcomputer implements conventional control on the EFI controller. The on-board microcomputer sends a PWM signal with a certain pulse width to the EFI controller, and the pulse width corresponds to the gear position of the main handle. In the ...
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IPC IPC(8): F02D41/30
Inventor 束昊昱孙宇芮孟寨李化肖永
Owner CRRC QISHUYAN CO LTD