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A method for self-adaptive regulation of engine speed

A technology of engine speed and self-adaptive adjustment, applied in engine control, machine/engine, governor, etc., can solve the problem of inability to dynamically adjust engine speed, and achieve the effect of improving product competitiveness

Active Publication Date: 2022-01-21
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing technology cannot dynamically adjust the engine speed

Method used

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  • A method for self-adaptive regulation of engine speed
  • A method for self-adaptive regulation of engine speed
  • A method for self-adaptive regulation of engine speed

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Embodiment Construction

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] figure 1 Dynamically adjust the engine speed logic diagram for the present invention, such as figure 1 As shown, the present invention dynamically adjusts the engine speed with a certain slope through the load, and the slope is adjusted according to different matching applications, and the engine speed control is associated with the engine load. By adjusting the basic set speed of the engine and the load feedback coefficient...

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Abstract

The invention discloses an engine speed self-adaptive adjustment method, comprising the following steps: according to the opening degree of the speed adjustment knob, searching the maximum speed setting value table to obtain the corresponding maximum speed setting value as the initial setting speed; output torque filtering to obtain the filtered engine output torque; according to the engine speed and the filtered engine output torque, look up the adjustment gradient coefficient table to obtain the adjustment gradient coefficient; obtain the speed adjustment according to the adjustment gradient coefficient and the filtered engine output torque value; the final speed setting value is obtained according to the maximum speed setting value and the speed adjustment value. The invention can dynamically adjust the engine speed to better meet matching applications; it can be applied to matching application scenarios such as power generation and excavators to improve product competitiveness and generate economic benefits.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine speed self-adaptive adjustment method. Background technique [0002] The speed control of the existing engine is to calculate the engine fuel injection according to the set speed and the current speed. fuel economy. [0003] However, existing technologies are unable to dynamically adjust engine speed. Contents of the invention [0004] The purpose of the present invention is achieved through the following technical solutions. [0005] The present invention calculates a rotation speed drop value through the slope of the current load and demand, superimposes the rotation speed drop value on the basis of the initial rotation speed setting value to obtain a final rotation speed value, and then performs rotation speed control. [0006] According to one aspect of the present invention, a method for adaptively adjusting the engine speed is provided, which includes the fol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D31/00F02D41/14
CPCF02D31/007F02D41/1401
Inventor 许帅袁文文李云霞秦翠萍徐卫亮
Owner WEICHAI POWER CO LTD
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