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Feedback control method for fuel delivery system

A technology of fuel delivery and feedback control, applied in the directions of fuel injection control, electrical control, engine control, etc., can solve problems such as failure to achieve control results and suboptimal fuel delivery pump control.

Active Publication Date: 2018-01-02
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the control of the fuel delivery pump is still not optimal and does not achieve optimal control results

Method used

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  • Feedback control method for fuel delivery system
  • Feedback control method for fuel delivery system
  • Feedback control method for fuel delivery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A characteristic map 1 is shown, which represents the relationship between the volume delivered by the fuel delivery pump, the rotational speed of the fuel delivery pump, and the pressure in the fuel delivery system. The speed of rotation is plotted on the X-axis, identified as reference 2 . The delivery volume of the fuel delivery pump is plotted on the Y axis, identified as reference numeral 3 . In the quadrant 4 spanned by the axes 2, 3, a number of curves 5 are shown. Curve 5 is an isobar and thus describes a region of constant pressure. Profile 1 is specific to a particular fuel delivery system. This profile varies depending on, among other factors, the fuel transfer pump used, the lines used, and many other factors. However, in a qualitative sense, the characteristic maps of these three variables described are always consistent with figure 1 The feature maps shown in 1 look similar.

[0037] Based on the feature map 1, two variables are known, and t...

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PUM

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Abstract

The invention relates to a feedback control method for a fuel delivery system of an internal combustion engine in a motor vehicle, comprising a fuel delivery pump for supplying the internal combustionengine with fuel, wherein the fuel delivery pump has a pump mechanism which can be driven by an electric motor, wherein the electric motor can be controlled by means of a control signal, wherein a control signal is generated for the control of the electric motor (37, 41, 42), wherein the actual fuel volume (32, 34) delivered by the fuel delivery pump and the prevailing fuel requirement (26, 27) of the internal combustion engine are included in the control signal, wherein the prevailing fuel requirement is determined by using parameters (21-26) which characterise the operating state of the internal combustion engine and / or of the motor vehicle.

Description

technical field [0001] The invention relates to a feedback control method for a fuel delivery system of an internal combustion engine in a motor vehicle, the fuel delivery system having a fuel delivery pump for supplying fuel to the internal combustion engine, wherein the fuel delivery pump has a motor which can be driven by an electric motor A pump mechanism, wherein the electric motor can be controlled by means of a control signal, wherein the control signal for controlling the electric motor is generated. Background technique [0002] A fuel delivery system in a motor vehicle with an internal combustion engine must ensure a sufficient fuel delivery in various operating states of the motor vehicle in order to ensure trouble-free operation of the motor vehicle. Furthermore, the different variants of the internal combustion engine increase the necessary flexibility here. [0003] To control the fuel delivery system and in particular the fuel delivery pump, a plurality of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/14F02D41/18F02D41/24F02D41/30F02D33/00
CPCF02D33/006F02D41/1454F02D41/18F02D41/2409F02D41/2432F02D41/3082F02D2041/1409F02D2200/0406F02D2200/0414F02D2200/0602F02D2200/0616F02D2200/101F02D2200/602F02D2250/31
Inventor G·贝伦特
Owner VTESCO TECH GMBH