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Automatic calibration system and method for electronic-controlled engine fuel oil parameters

An electronically controlled engine and calibration system technology, applied in engine components, engine control, engine testing, etc., can solve problems such as error-prone and large workload, and achieve the effect of reducing work intensity and test error rate

Inactive Publication Date: 2015-08-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an automatic calibration system and method for fuel parameters of an electronically controlled engine, which is used to solve the heavy workload and easy calibration of the engine caused by manual operation in the prior art. error etc.

Method used

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  • Automatic calibration system and method for electronic-controlled engine fuel oil parameters
  • Automatic calibration system and method for electronic-controlled engine fuel oil parameters
  • Automatic calibration system and method for electronic-controlled engine fuel oil parameters

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Embodiment 1

[0060] Such as figure 2 As shown, the present invention provides an electronically controlled engine fuel parameter automatic calibration system 2, comprising:

[0061] A parameter setting module 21 , an experiment design module 22 , a calibration parameter positioning module 23 , an execution sequence module 24 , an API language generation module 25 and a calibration test execution module 26 .

[0062] The parameter setting module 21 is used for selecting fuel injection parameters and setting the range of the fuel injection parameters. In this embodiment, the fuel injection parameters include main fuel injection quantity, number of injector holes, injector hole diameter, rail pressure or fuel injection timing. In this embodiment, the parameter setting module 21 is an application program module, which needs to call the API interface to control the operating system to realize the selection of the fuel injection parameters and the setting of the range of the fuel injection par...

Embodiment 2

[0069] Such as image 3 As shown, the present invention provides an automatic calibration method for an electronically controlled engine fuel parameter automatic calibration system based on a point calibration mode. The point calibration mode is suitable for optimal calibration of fuel injection parameter combinations at a certain operating point, including the following steps:

[0070] Step S11: the parameter setting module 21 calls the API interface to select the fuel injection parameters to be optimized and calibrated and the variation range of the fuel injection parameters.

[0071] Specifically, in this embodiment, the fuel injection parameters are selected as rail pressure and fuel injection timing, the variation range of the rail pressure is set to 90-130 MPa, and the variation range of the fuel injection timing is set to 0~20 crank angle.

[0072] Step S12: The test design module 22 invokes the API interface, and uses space filling and other test design methods to det...

Embodiment 3

[0079] Such as Figure 6 As shown, the present invention provides an automatic calibration method for an electronically controlled engine fuel parameter automatic calibration system based on the line calibration mode. The surface line calibration mode is suitable for optimal calibration of a certain fuel injection parameter in transient or excessive conditions. Include the following steps:

[0080] Step S21: The parameter setting module 21 calls the API interface to select the fuel injection parameters that need to be optimized and calibrated and the variation range of the fuel injection parameters. In this embodiment, the main fuel injection quantity and fuel injection timing are selected as the fuel injection parameters.

[0081] Step S22: The experimental design module 22 calls the API interface to determine the initial working point and the ending working point of the calibration path, formulate the calibration path according to spline curves with different characteristic...

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Abstract

The invention provides an automatic calibration system and method for electronic-controlled engine fuel oil parameters. The method comprises the steps that according to three calibration modes of dots, lines and faces, oil injection parameters and the variation range of the oil injection parameters are selected to conduct the experiment design; according to position definition variables of the oil injection parameters on a screen and the input sequence of the variables, a computer operating system API is called to generate the automatic calibration system of a fuel oil injection system and control the calibration process of the engine fuel oil system. The oil injection parameters of the fuel oil system are controlled through the automatic calibration system of the fuel oil injection system, then the whole calibration process of the engine fuel oil system is controlled, and finally the automation of the electric engine calibration process is achieved. Accordingly, an engine can operate within different oil injection parameter combinations under a certain working condition when the oil injection parameters are within a certain range, the power performance, the economical efficiency and the emission performance of the engine under different oil injection parameter combinations can be measured, and the labor intensity of calibration engineers and the experiment error rate are reduced.

Description

technical field [0001] The invention relates to the field of engine electronic control, in particular to an automatic calibration system and method for fuel parameters of an electronically controlled engine. Background technique [0002] With the rapid increase of transportation vehicles and ships in cities all over the world, the exhaust gas emitted by engines has become the main source of pollution to the earth's environment. Countries around the world have begun to find and adopt effective technical measures to actively reduce and control the discharge of pollutants. As a development goal and model, sustainable development has been accepted by countries all over the world. The comprehensive implementation of the sustainable development strategy cannot be separated from the sustainable development of the automobile industry. [0003] Engine common rail electronically controlled fuel injection technology is a relatively successful new technology for controlling pollution e...

Claims

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Application Information

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IPC IPC(8): F02D41/38F02M65/00
Inventor 楼狄明温雅胡磬遥胡志远谭丕强
Owner TONGJI UNIV
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