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Method and device for operating internal combustion engine, in particular, motor vehicle with dual fuel injection

An internal combustion engine, motor vehicle technology, applied in the direction of fuel injection control, machine/engine, internal combustion piston engine, etc.

Active Publication Date: 2017-08-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, when stepping from low load to high load, this operating strategy produces increased particulate emissions which last for many seconds before they subside again

Method used

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  • Method and device for operating internal combustion engine, in particular, motor vehicle with dual fuel injection
  • Method and device for operating internal combustion engine, in particular, motor vehicle with dual fuel injection
  • Method and device for operating internal combustion engine, in particular, motor vehicle with dual fuel injection

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Embodiment Construction

[0030] figure 1 The internal combustion engine shown in has four cylinders 11 which are covered by a cylinder head 12 . In each cylinder 11 , the cylinder head 12 delimits a combustion chamber 13 with a piston, not shown here, guided in the cylinder 11 , which has an intake valve, not shown here. 14 controlled air inlet 15 , likewise not shown here. The intake port 15 is formed through the cylinder head 12 at figure 1 The opening of the intake channel 16 which is not shown in the same.

[0031] The illustrated fuel injection system comprises an air flow channel 18 for supplying combustion air to the combustion chamber 13 of the cylinder 11 , which has flow channels separated from one another at the end sides to the individual intake ports 16 . 17. Furthermore, a first group of fuel injection valves 19 , which inject fuel directly into the combustion chamber 13 of the cylinder 11 , and a second group of fuel injection valves 20 , which inject fuel directly into the combusti...

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PUM

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Abstract

The invention relates to a method and a device for operating an internal combustion engine, in particular, a motor vehicle, with a dual, intake manifold-based fuel metering (SRE) and a direct fuel metering (BDE) ), And wherein it is in particular provided that a relative fuel quantity division of the suction tube-based fuel metering (SRE) and the direct fuel metering (BDE), which is dependent on a dynamic operation (205, 210) of the internal combustion engine, is carried out (215).

Description

technical field [0001] The invention relates to a method and a device for operating an internal combustion engine, in particular an internal combustion engine of a motor vehicle with dual fuel dosing, according to the preambles of the respective independent claims. The subject of the invention is also a computer program, a machine-readable data carrier for storing said computer program, and an electronic controller, by means of which computer program, a machine-readable data carrier and an electronic controller can be implemented according to the invention. method. Background technique [0002] It is known from practice that internal combustion engines can be operated in injection-only operation or in injection-mixed operation, in which the cylinders of the internal combustion engine can use only the injection of the intake manifold injection (SRE) during the working stroke of the cylinder. Injectors or injectors with direct injection (BDE), in which injection-mixed operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/30F02D19/08
CPCF02D19/081F02D41/30F02D41/0007F02D41/0047F02D41/10F02D41/3094F02D2041/001F02D2200/021F02D2200/023F02D2200/0404F02D2200/0406F02D2200/101F02D2200/602Y02T10/40
Inventor C.旺德林R.埃克T.库恩T.霍尔曼U.舒尔茨
Owner ROBERT BOSCH GMBH