A digital speed control device and control method for a diesel engine

Abstract

The invention discloses a digital control device for a diesel engine and a control method realized by using the digital control device for a diesel engine. The device includes a speed regulation driving main circuit, a shaping circuit, a core processor for segmental PID control, and an input and output device; The input signal of the shaping circuit is a speed sensor signal, and its output signal is a square wave speed signal. The output terminal of the shaping circuit is connected to the external interrupt pin of the core processor, and the I / O port of the core processor is connected to the input and output The equipment is connected; the signal output by the PWM output pin of the core processor is connected to the speed regulation drive main circuit, and the speed regulation output terminal TS of the speed regulation drive main circuit outputs the voltage for adjusting the throttle of the diesel engine; the advantage of the present invention is that the structure Compact, low power consumption, high precision, good speed control performance, high safety and easy to use.

Description

technical field [0001] The invention relates to a diesel engine speed control device and a control method thereof, belonging to the field of digital speed control, in particular to a diesel engine digital speed control device and a control method thereof. Background technique [0002] At present, diesel generators usually use analog speed control devices, and the analog speed controllers mainly have the following problems: 1. Due to the use of many separate components, the power consumption is large and the reliability is reduced; 2. In the traditional In the analog speed controller, the potentiometer knob is usually used to set the speed. Therefore, it will eventually affect the control accuracy of the speed, and it is difficult to achieve precise speed control; 3. The control method with fixed PID parameters is usually used. Under different operating intervals and operating states, variable parameter control cannot be realized. Contents of the invention [0003] The tec...

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Problems solved by technology

[0002] At present, diesel generators usually use analog speed control devices, and the analog speed controllers mainly have the following problems: 1. Due to the use of many separate components, the power consumption is large and the reliability is reduced; 2. In the traditional In the analog speed controller, the potentiometer knob is usually used to set the speed. Therefore, it will eventually affect the control accuracy of the speed, and it is difficult to achieve precise speed control; 3. The control method with fixed PID parameters is usually used. Under different operating intervals and operating states, variable parameter control cannot be realized

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