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Method for operating an internal combustion engine, and controller for carrying out the method

An internal combustion engine and controller technology, applied in engine control, internal combustion piston engine, combustion engine and other directions, can solve problems such as uneconomical, save time and cost, and achieve the effect of long maintenance time interval

Active Publication Date: 2021-05-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If the spark plugs are replaced too early, it proves uneconomical
Especially in the case of large engines, spark plug replacement can be a significant cost factor

Method used

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  • Method for operating an internal combustion engine, and controller for carrying out the method
  • Method for operating an internal combustion engine, and controller for carrying out the method
  • Method for operating an internal combustion engine, and controller for carrying out the method

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 The spark plug shown is used in an internal combustion engine with external ignition in order to ignite the fuel-air mixture with a spark between two electrodes 1 , 2 . To this end, a high-voltage pulse is conducted via a conductor insulated from the motor to the first electrode 1 , from which the spark then jumps over to the other electrode 2 . The fuel-air mixture is then ignited due to the thermal energy of the crossing spark.

[0026] The first electrode 1 is accommodated in the central cavity 3 of the sleeve-shaped insulator 4 and is therefore also referred to as central electrode or central electrode. The central electrode consists of a nickel alloy and has a copper core. The other electrode 2 is a ground electrode 2 arranged spaced apart from the first electrode 1 . This other electrode also consists of a nickel alloy. The spark plug technology and service life can be influenced by the arrangement and / or geometry of the electrodes.

[0027] In the c...

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PUM

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Abstract

The invention relates to a method for operating an internal combustion engine with fuel which is combusted using a spark plug. According to the invention, the aging of the spark plug, in particular the aging of an electric resistor of the spark plug, is monitored during the operation of the internal combustion engine, wherein electromagnetic radiation of the spark plug is detected for monitoring purposes. The invention additionally relates to a controller for carrying out the method.

Description

technical field [0001] The invention relates to a method for operating an internal combustion engine having the features of the preamble of claim 1 . Furthermore, the invention relates to a controller for carrying out the method according to the invention. Background technique [0002] Internal combustion engines running on non-pyrophoric fuels can be ignited by means of spark plugs. Such a spark plug is known, for example, from laid-open publication DE 10 2015 214 057 A1. It comprises an insulator having a cavity extending along the longitudinal axis, in which a central electrode is accommodated at one end and a connecting electrode at the other end in such a way that these electrodes each protrude beyond the insulator. A resistor is formed between the central electrode and the connecting electrode. Furthermore, the spark plug comprises a ground electrode which is arranged at a distance from the central electrode. [0003] If a high voltage is applied to the central ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22F02P11/06F02P17/12H01T21/02
CPCF02P17/12F02P11/06F02D41/221H01T13/60F02P2017/121F02P2017/125
Inventor R·里特尔R·M·齐尔克A·哈斯塔尔
Owner ROBERT BOSCH GMBH
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