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Method for recognizing starting mode of internal combustion engine

A starting method, the technology of internal combustion engine, which is used in the starting of the engine, the starting of the engine with the motor, the machine/engine, etc., can solve the problems of low accuracy and limited torque, and achieve low cost and accurate motor speed information. Effect

Active Publication Date: 2019-07-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But sometimes, the accuracy of the information provided by the motor management software is not very high, and therefore the torque is limited in this mode, this mode can be called crankshaft safe mode

Method used

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  • Method for recognizing starting mode of internal combustion engine
  • Method for recognizing starting mode of internal combustion engine
  • Method for recognizing starting mode of internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0027] The invention is shown schematically in the drawing with the aid of an embodiment and will be described in more detail below with reference to the drawing.

[0028] figure 1 The curve of the motor speed signal 10 is plotted in . In the diagram shown, the crankshaft angle [°CA] is plotted on the abscissa 12 and the motor speed [U / min], which is determined by the motor rotational speed, is plotted on the ordinate 14 .

[0029] figure 1 The behavior of the motor speed signal 10 of a two-wheel, single-cylinder system with an electromechanical starter during the start-up phase is shown. The illustration shows that the motor speed drops during the compression stroke and increases sharply during the decompression phase.

[0030] It is now possible to specify, based on figure 1 Signal 10 with information about the motor speed shown in , a special signal is generated in order to utilize said speed information. In this way, the effect of compression and decompression can be ...

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PUM

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Abstract

The invention relates to a method for recognizing a starting mode of an internal combustion engine coupled to a battery, in which electrical parameters of the battery are monitored during a starting phase of the internal combustion engine, and the starting mode is determined during the starting phase by means of a curve of the electrical parameters.

Description

technical field [0001] The invention relates to a method for detecting or determining a starting mode of an internal combustion engine and a device for carrying out the method. The invention also relates to a computer program and a machine-readable storage medium for carrying out the method. Background technique [0002] For the operation of modern internal combustion engines it is necessary to provide the electronic motor controller which actuates the internal combustion engine with information about the current rotational speed of the motor. It is thus known to detect the rotational speed of a crankshaft of a machine or a motor by means of inductively acting sensors or Hall sensors. It records the passing metal markers and uses the time difference between the two markers to determine the rotational speed. [0003] In conventional internal combustion engines, which are also referred to below as motors or machines, injection and ignition are controlled by a motor controlle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/00F02D41/02
CPCF02D41/009F02D41/0097F02D41/0205F02D41/062F02N11/08F02N2200/063F02N2200/021F02D2041/0092
Inventor A.赖歇J.米勒V.K.M.维拉巴萨帕W.菲舍尔
Owner ROBERT BOSCH GMBH
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