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Ignition control device and method

A technology of ignition control and ignition angle, applied in the direction of electric spark ignition controller, other devices, electrical control, etc., can solve problems such as lack and lack, and achieve the effect of avoiding mistakes

Inactive Publication Date: 2005-06-29
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There has so far been a lack of a clear, unambiguous structure that shows system users, such as users, which setpoint values ​​should be used for the ignition output
There is also a lack of a uniform, universally applicable method that can also be shared by other output devices where possible

Method used

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  • Ignition control device and method
  • Ignition control device and method
  • Ignition control device and method

Examples

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Embodiment Construction

[0037] In the figures, identical reference numbers indicate identical or functionally identical elements.

[0038] figure 1 A time flow diagram for explaining an embodiment of the present invention is shown.

[0039] figure 1 In particular, a time division of the ignition sequence in a four-cylinder internal combustion engine is given, ie with four stages of 180° each, with cylinder 1 having a limit adjustment of the knock delay and torque build-up by advancing the ignition angle.

[0040] The four-cylinder internal combustion engine is operated with a single spark plug ignition based on a coil ignition. Thus, in an embodiment, the start of the charging phase can be located at most 3 segments before the ignition signal-segment. Otherwise, the minimum open time of the ignition (no current applied) may be undershot. The maximum value of the overlap counter  is thus 3, where =0 means no overlap. The two memory devices—firing angle memory matrix SP1 and firing angle FIFO ...

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PUM

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Abstract

The invention provides an ignition control device for controlling the ignition coil device of an internal combustion engine, which has a rotational speed measuring device for measuring the rotational speed of the internal combustion engine at a measurement moment in each cylinder ignition cycle; an angle measuring device for measuring the rotational speed of the internal combustion engine The current crankshaft angle; a calculation device, at a calculation moment in the ignition cycle of each cylinder, calculates the ignition angle corresponding to the measured rotational speed of the next cylinder to be ignited and the subsequent cylinder at that time, and calculates the corresponding charging time and corresponding charging a start angle; a first storage means in the form of a read / write memory to store the corresponding calculated firing angles for all cylinders; an overlap-measuring means to measure the overlap of the firing cycle of the next cylinder to be fired with the firing cycle of the subsequent cylinder, and Determining the corresponding degree of overlap; a second storage device in the form of a FIFO-memory to store the calculated firing angle; a copying device to copy the corresponding firing angle in the first storage device to the second storage device according to the degree of overlap ; and an ignition output device, which gives the ignition angle of the next corresponding cylinder to be fired from the second storage device, and gives the corresponding charging time and the corresponding charging start angle.

Description

technical field [0001] The invention relates to an ignition control device and a corresponding ignition control method. [0002] Although the invention can be applied to any ignition control, the description here of it and the problem based on it is based on an engine control unit installed in a motor vehicle. Background technique [0003] The ignition control device is used to control the ignition event of the ignition coil ignition system or device. It mainly has two control functions, that is, to control the desired ignition energy through the turn-on time or charging time of the ignition coil, and to control the desired ignition energy through the ignition coil. The correct angle control of the ignition pulse is carried out by the cut-off time of the coil or the charging end point. [0004] The ignition energy, which is measured by the charging time of the ignition coil in the coil ignition system, varies according to the vehicle power supply voltage attached to the coi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02P5/15F02P3/05F02P3/045F02D45/00F02P7/03
CPCF02P5/1512F02P7/035Y02T10/40F02P5/15
Inventor 马丁·豪斯曼哈利·弗里德曼
Owner ROBERT BOSCH GMBH