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Method and device for controlling a fuel distribution system of an internal combustion engine

An internal combustion engine, fuel technology, applied in electrical control, engine control, fuel injection control and other directions, can solve the problem of not optimal fuel consumption

Active Publication Date: 2022-05-24
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In mass production, this leads to overly increased preload values ​​on average
Since the generation of the low pressure by the delivery pump requires energy from the on-board electrical system, this method is not optimal for the fuel consumption of the vehicle due to tolerance tolerances.

Method used

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  • Method and device for controlling a fuel distribution system of an internal combustion engine
  • Method and device for controlling a fuel distribution system of an internal combustion engine
  • Method and device for controlling a fuel distribution system of an internal combustion engine

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Embodiment Construction

[0016] at Figure 1 The basic elements of the fuel dosing system (Kraftstoffzumesssystem) are shown. at Figure 1 Medium, the transfer pump (Förderpumpe) is marked with 100. The transfer pump conveys the fuel from the reserve container 110 to the high pressure pump 120. The high pressure pump 120 establishes pressure in a high pressure area. In particular, the high pressure region comprises a pressure memory (Druckspeicher), the pressure memory is also referred to as "rail" (Rail) 130. Further, the pressure sensor 140 is arranged in the high pressure area. From the rail 130, the fuel enters the combustion chamber of the internal combustion engine through the injector 150. The pressure is established by the control device 160 (the pressure establishment is carried out by the high pressure pump 120, the ejector 150 and the power output of the conveying pump 100) is controlled. This control device 160 also analyzes the output signal of the pressure sensor 140.

[0017] The area between...

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PUM

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Abstract

The invention relates to a method for controlling a fuel distribution system of an internal combustion engine, wherein the fuel distribution system comprises a delivery pump and a high-pressure pump, an actuation signal for the delivery pump is raised when the internal combustion engine is started, and the following actuation is obtained Signal: The pressure limiting valve responds under this control signal.

Description

Technical field [0001] The present invention is based on the apparatus and method of the preamble portion of the independent claims as a starting point. Background [0002] From DE 198 53 823 A1 is known a method for operating a fuel dispensing system for an internal combustion engine. The fuel dispensing system comprises a transfer pump and a high-pressure pump. The transfer pump conveys the fuel from the fuel reserve vessel (Vorratsbehälter) through the low pressure area to the high pressure pump. The high-pressure pump delivers the fuel into a high-pressure area, the high-pressure area comprises, in particular, a so-called rail. From the rail, the fuel reaches the injector (Injektor) of a single combustion chamber of the combustion engine. [0003] For the system used in mass production today, the fuel dosing system consists of a low-pressure system and a high-pressure system. Herein, it is preferable to use a pre-controlled low-voltage system, the pre-controlled low-voltage s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/30F02D41/14
CPCF02D41/1401F02D41/3082F02D41/062F02D41/2438F02D41/3863F02D2200/0602
Inventor A.S.Z.施魏因斯贝格B.希勒H-F.施瓦茨J.金佩尔K.约斯
Owner ROBERT BOSCH GMBH