Method and system for controlling multi-cylinder internal combustion engine

A controller and parameter control technology, applied in engine control, internal combustion piston engine, electrical control, etc., to simplify engine facilities, shorten update intervals, and save a lot of money

Active Publication Date: 2008-09-17
MAN DIESEL GERMANY BRANCH OFFICE OF MAN DIESEL SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these prior art publications include any type of information related to the critical electronic control of the combustion process in the cylinders of a multi-cylinder engine

Method used

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  • Method and system for controlling multi-cylinder internal combustion engine
  • Method and system for controlling multi-cylinder internal combustion engine
  • Method and system for controlling multi-cylinder internal combustion engine

Examples

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Embodiment Construction

[0049] The schematic representation in Figure 1 shows a redundant electronic control system for a four-cylinder marine diesel engine of the type disclosed in JP 3483743 B2.

[0050] Such a control system works in such a way that discrete instantaneous parameter values ​​representing the angular position of the engine crankshaft 1 are detected and captured by multiple detector components in each of the two typical photosensor arrangements 2 and 3 and used as a digitally controlled Parameter signals are transmitted from each detector part in each sensor arrangement via separate dedicated signal lines 4 to the two central engine control units 5 and the plurality of cylinder control units 6 associated with the four engine cylinders 7 in order to follow the slave sensor Devices 2 and 3 receive parameter signals to time and control the combustion process in each cylinder.

[0051] Each central engine control unit 5 is connected via a communication bus network 8 on the one hand to ea...

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PUM

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Abstract

A control method for a multi-cylinder internal-combustion engine is as follows: delivering the instant value captured by the control parameter of at least one sensor device at the pluralities of branch moments during the engine rotating period to the control unit of the internal-combustion engine; so that the method sets the time during the burning circulated period for each cylinder and controls the implementation for the operating incident; providing the captured parameter signal to the node formed with the standard communication bus and at least one coder interface module to make the signal contained in the data message; the data message is transmitted to the other node of the bus network; the other node bus network is related to the cylinder control unit to form the interface module; the compensating data is contained in the data message to calculate the interface module for each controller module interface to receive the estimated value of the control parameter in each interval among the subsequence data messages, which makes up the difference for the real-time message delivery caused by the standard communication bus; the calculation is processed by the value of the control parameter and the compensating data.

Description

technical field [0001] The present invention relates to a control method and system for a multi-cylinder internal combustion engine, in particular, a multi-cylinder marine diesel engine used as a propeller on a ship. [0002] More specifically, the present invention is directed to the execution of electronically controlled operating events during each combustion cycle of each cylinder of a multi-cylinder internal combustion engine in response to a control parameter that varies with time during each revolution of the engine. In general, but not exhaustively, the operational events whose execution is timedly controlled during each combustion cycle may include examples of fuel injection, ignition, actuation of intake and exhaust valves, and supply of lubricant and compressed air to cylinders. [0003] The control parameter is typically the instantaneous angular position of the crankshaft as captured by at least one sensor arrangement at a plurality of discrete sensing points regu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00
CPCF02D41/009F02D41/04F02D41/28F02D45/00Y02T10/40
Inventor 埃里克·R·汉森约恩·S·安德森拉斯·K·瑟伦森
Owner MAN DIESEL GERMANY BRANCH OFFICE OF MAN DIESEL SE
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