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Control method of internal combustion engine and control device of internal combustion engine

A control method and internal combustion engine technology, applied in engine control, internal combustion piston engine, electrical control, etc.

Active Publication Date: 2022-04-12
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] That is, regarding the control when the engine is automatically restarted, there is room for further improvement in order to restart the engine more reliably.

Method used

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  • Control method of internal combustion engine and control device of internal combustion engine
  • Control method of internal combustion engine and control device of internal combustion engine
  • Control method of internal combustion engine and control device of internal combustion engine

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Experimental program
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Embodiment Construction

[0012] Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

[0013] figure 1 It is an explanatory diagram schematically showing the outline of the control device for the internal combustion engine 1 according to the present invention.

[0014] An internal combustion engine 1 serving as a driving source of the vehicle can drive a motor generator 3 serving as an electric motor via a transmission belt 2 . Internal combustion engine 1 has a plurality of cylinders.

[0015] The motor generator 3 functions as a motor (so-called "power running"), and also functions as a generator (generator) (so-called "regeneration").

[0016] The motor generator 3 functions as a so-called starter motor using the on-vehicle battery 4 as a drive source when the internal combustion engine 1 is started. In addition, the electric power generated by the motor generator 3 can charge the battery 4 .

[0017] The engine rotation speed (engine rotational...

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Abstract

The invention relates to a control method of an internal combustion engine and a control device of the internal combustion engine, the control unit of which is operated at the crankshaft of the cylinder in the compression stroke of the internal combustion engine in the case of restarting the internal combustion engine which has been automatically stopped at a reduced engine speed The cranking is initiated when the rotation angle is closer to bottom dead center than a predetermined threshold. Specifically, if the engine speed is forward rotation, the engine starts cranking when the crank angle of the cylinder in the compression stroke is closer to the bottom dead center than a preset threshold. In addition, if the rotational speed of the internal combustion engine is reverse rotation, the internal combustion engine starts cranking when the crank angle of the cylinder in the compression stroke is closer to the bottom dead center than another preset threshold value.

Description

technical field [0001] The invention relates to a control method of an internal combustion engine and a control device of the internal combustion engine. Background technique [0002] For example, Patent Document 1 discloses a technique for restarting the engine when the brake is released during the automatic stop of the engine. [0003] However, when the crankshaft is rotated when the engine is automatically restarted, if the torque of the electric motor is small, restarting may not be possible. For example, when the voltage of a battery serving as a driving source of the electric motor is low, the driving torque generated by the electric motor is relatively reduced. [0004] That is, there is room for further improvement in order to restart the engine more reliably regarding the control when the engine is automatically restarted. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2014-122635 Contents of the invention [0006] In the internal combustion engine o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08
CPCY02T10/40F02N11/04F02N11/0844F02N2200/021F02N2250/04F02D41/009F02N2300/2011F02D41/065F02D2200/101F02N11/0818F02N2200/022
Inventor 滨根将太
Owner NISSAN MOTOR CO LTD