Control method and system for an internal combustion engine

A technology of internal combustion engine and control parameters, applied in engine control, internal combustion piston engine, electrical control, etc., can solve problems such as low transmission capacity, and achieve the effect of increasing throughput and low cost

Active Publication Date: 2013-06-12
MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Traditionally, such prior art systems are based on multi-drop bus networks with a predetermined transfer scheme (e.g. tagged) and constant transfer time, and have a relatively low transfer capacity

Method used

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  • Control method and system for an internal combustion engine
  • Control method and system for an internal combustion engine

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Embodiment Construction

[0025] figure 1 The complete schematic diagram in shows a diesel engine implementing a redundant electronic control system according to the invention. The control system operates in such a way that discrete instantaneous values ​​of the control parameter representing the angular position of the engine crankshaft are detected and captured by a plurality of detector members in each of two typical optoelectronic sensor arrangements 3, 3', and as digital control parameter signals in data messages from the sensor devices 3, 3' to the two redundant central engine control units 4, 4' and to the engine via dedicated separate signal lines in the independent redundant communication network 10, 10' A plurality of cylinder control units 5 associated with the cylinders 2 are used to time and control the combustion process in each cylinder according to the digital control parameter signals received from the sensor means 3, 3'. exist figure 1 In the shown embodiment the sensor devices 3, 3...

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Abstract

A method for controlling the execution of operational events of a multi-cylinder internal combustion engine in response to a control parameter varying in time during each revolution of the multi-cylinder internal combustion engine, comprising the steps of capturing instantaneous values of the control parameter, communicating the instantaneous values of the control parameter as digital control parameter signals to control units, compensating for deviations from real-time communication by inducing compensating data into the data messages and by calculation of estimated values of the control parameter in an interval between the receipt of successlve data messages by the control units wherein said calculation being made from the captured instantaneous value of the control parameter, the time diference between the time at the instant of capture of the Instantaneous value of the control parameter and the reception time of a data message.

Description

technical field [0001] The present invention relates to a method for controlling the execution of an operating event during each combustion cycle of each cylinder of a multi-cylinder internal combustion engine in response to a control parameter that changes over time during each revolution of the multi-cylinder internal combustion engine, the method comprising the following Steps: capturing an instantaneous value of a control parameter at a plurality of discrete instants during each revolution by at least one sensor device; communicating the instantaneous value of the control parameter as a digital control parameter signal to a control unit for timing and controlling a multi-cylinder internal combustion engine execution of operational events during each combustion cycle of each cylinder; and include digital control parameter signals into data messages for transmission over a communication network; by including compensation data into data messages and by calculation by the contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D45/00
CPCF02D41/02F02D41/14F02D45/00Y02T10/40
Inventor 拉尔斯·科尔比·索伦森约恩·斯科夫高·安诺生埃里克·罗森隆德
Owner MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND
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