Electronic speed-regulating method and speed-regulating device thereof

Abstract

The invention relates to an electronic speed-regulating method and a speed-regulating device thereof. The method comprises the following steps of: 1) setting an electronic speed regulator comprising a control box, an executing mechanism, a rotating speed sensor and a power supply, installing the rotating speed sensor at the part of a turning gear ring of a diesel engine, respectively connecting the input end of the control box with the output end of a driver controller and an auxiliary device of the diesel engine, and respectively connecting the output end of the control box with the input end of the executing mechanism and the input end of an exciting coil on a main generator; 2) presetting rotating speed amount of the diesel engine; 3) collecting feedback rotating speed amount of the diesel engine; 4) calculating the difference between the preset rotating speed amount of the diesel engine and practical rotating speed amount of the diesel engine; 5) using an IPD rotating speed control method to calculate expected displacement amount of the rack of an oil-spraying pump of the diesel engine; 6) collecting feedback displacement amount of the rack; 7) calculating the difference between the expected displacement amount and the practical displacement amount of the rack; and 8) using a PID rack control method to generate a PWM signal transmitted to the executing mechanism and a PWM signal for controlling the exciting coil to output exciting current. Based on position control, the invention is not influenced by rotating speed of the diesel engine and has wide application range.

Description

technical field [0001] The invention relates to an electronic speed regulation method and a speed regulation device thereof, in particular to an electronic speed regulation method and a speed regulation device of an internal combustion locomotive diesel engine. Background technique [0002] Digital electronic governor is a key technology for the development of electronically controlled diesel engines, especially for the development of electronically controlled fuel injection systems. At present, foreign countries have launched three generations of electronically controlled fuel injection systems for the control of diesel locomotives, namely, the first generation of position control, the second generation of time control and the third generation of time control and common rail EFI system. The working performance, technical indicators and control freedom of time control and common rail EFI system have been greatly improved. Due to the low level of research and application of ...

AI Technical Summary

Problems solved by technology

Although the speed of the diesel engine is stable in this way, the adjustment time for the power value to reach the required value becomes longer. For example, the adjustment time required for the existing locomotive diesel engine from the minimum operating speed of 430 rpm to the highest calibration of 1000 rpm has changed from the original 13~ 14 seconds, extended to 20 seconds, which deteriorates the economy of diesel engine operation

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