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How an internal combustion engine works

An internal combustion engine, working technology, applied in mechanical equipment, engine control, machine/engine, etc., can solve problems such as uneven operation of the engine, and achieve the effect of reliable implementation

Inactive Publication Date: 2017-02-22
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under certain operating conditions, however, this torque equalization can lead to an uneven running of the engine, for example in that the individual cylinders build up torque at different times, so that the torque of the individual cylinders fluctuates over time

Method used

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  • How an internal combustion engine works
  • How an internal combustion engine works
  • How an internal combustion engine works

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 A vehicle 10 is shown with an internal combustion engine 11 and a device 15 for the internal combustion engine 11 . The internal combustion engine 11 includes four cylinders 12 which work on the same crankshaft 13 . Mounted on the crankshaft 13 is a sensor wheel (not shown), which rotates together with the crankshaft 13 and which, in combination with the crankshaft angle sensor 14 , provides a high-precision crankshaft signal to the device 15 . Device 15 is coupled via input 16 to crank angle sensor 14 . The device 15 can, for example, be part of the engine electronics of the internal combustion engine 11 or be a separate device. Device 15 may include electronic control means, such as a microprocessor. The device 15 can also include a time base in order to be able to determine the angular acceleration of the crankshaft 13 in combination with the high-precision crankshaft signal.

[0026] The mode of operation of the device 15 is described in detail below. ...

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Abstract

The invention relates to a method for operating an internal combustion engine (11). In the method, a plurality of angular accelerations of a crankshaft (13) of the internal combustion engine (11) are sensed in a plurality of working cycles of the cylinder (12) and a mean value of the angular accelerations is determined on the basis of the plurality of angular accelerations of the cylinder (12) for at least one cylinder (12) of the internal combustion engine (11). The internal combustion engine (11) is controlled on the basis of the plurality of angular accelerations and the mean value.

Description

technical field [0001] The invention relates to a method for operating an internal combustion engine and a corresponding arrangement for an internal combustion engine. The invention relates in particular to a method for improving the smooth running of an internal combustion engine. Background technique [0002] Internal combustion engines, such as gasoline engines with multiple cylinders, can experience rough running due to poor dispersion of the combustion process, especially during idling operation. This dispersion can be accentuated by unfavorable ignition conditions, for example due to the distance between the electrodes of the spark plug, dispersion of the injection valve, in particular dispersion with respect to the flow rate or jet delivery. If the internal combustion engine is used, for example, in a vehicle such as a car or truck, such jerkiness during idling can be disturbing to the vehicle user or passengers. [0003] A related example is a gasoline motor vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14F02D41/00
CPCF02D41/0085F02D41/009F02D41/1498F02D2200/1012
Inventor G.赫丁G.施罗特
Owner VOLKSWAGEN AG
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