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A method for automatic throttle control

A technology of throttle and controlled object, applied in engine control, electrical control, fuel injection control, etc., can solve problems such as excessive overshoot

Active Publication Date: 2017-02-08
CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an adaptive automatic throttle control method, which solves the problems of excessive overshoot and slow callback when the traditional PD controller has a large control target step and the throttle reaches the limit position, and improves the performance of the controlled object. security

Method used

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  • A method for automatic throttle control
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Embodiment Construction

[0016] A throttle automatic control method, comprising the following steps:

[0017] In the first step, the target speed Vcmd of the controlled object is subtracted from the actual speed V to obtain the speed deviation Dv, and then the speed deviation signal is passed through a proportional link to perform gain K1 and noise reduction T;

[0018] In the second step, the discharge switch Sw is set to 1, and the speed deviation signal Dv of the first step is integrated through the integration link;

[0019] The third step is to add the results of the first two steps to get δc, after the limiting link, get the engine throttle command δcL, control the engine throttle, change the actual speed V of the controlled object, and return to the first step; to reach the speed Tracking Control Purposes.

[0020] The third step also includes: comparing the input and output values ​​of the limiting link, if the input and output values ​​of the limiting link are different, then setting the dis...

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Abstract

The invention belongs to automatic control technologies, and particularly relates to an automatic control method of an engine accelerator. Through adding of an integrator discharging link, after an accelerator order reaches a limit position, output of an integrator is automatically and gently reduced, and when the accelerator order normally controls a controlled object again, the integrator restarts. The method guarantees accelerator control rapidity and well controlling stability.

Description

technical field [0001] The invention belongs to the automatic control technology, in particular to an automatic control method of the throttle of an engine. Background technique [0002] The traditional throttle automatic control method of the engine is based on PD linear control. This structure can meet the control target of speed tracking under normal circumstances, but when the controlled target speed changes greatly, or the throttle command reaches the maximum or minimum limit position , or when the engine operating condition changes, there will be problems of excessive control target overshoot and slow callback, and severe cases will induce shock divergence. Contents of the invention [0003] Purpose of the invention [0004] The purpose of the present invention is to provide an adaptive automatic throttle control method, which solves the problems of excessive overshoot and slow callback when the traditional PD controller has a large control target step and the throt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D11/10F02D41/14
Inventor 杨帆罗欣龚志远康明杰郭通陈云杰
Owner CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA