Internal combustion engine control device and internal combustion engine control method

A control device, the technology of internal combustion engine, applied in the direction of engine control, internal combustion piston engine, combustion engine, etc., can solve problems such as rising

Active Publication Date: 2020-03-31
ISUZU MOTORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, when the throttle valve is rapidly closed during deceleration, the intake air pressure between the throttle valve and the compressor rises, and surge may occur in which the intake air flows backward in the compressor.

Method used

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  • Internal combustion engine control device and internal combustion engine control method
  • Internal combustion engine control device and internal combustion engine control method
  • Internal combustion engine control device and internal combustion engine control method

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Embodiment Construction

[0026] Embodiments of the present disclosure will be described below with reference to the drawings. In addition, it should be noted that the present disclosure is not limited to the following embodiments.

[0027] figure 1 It is a schematic diagram showing the configuration of an embodiment of the present disclosure. The internal combustion engine (also referred to as an engine) 1 is a multi-cylinder engine mounted on a vehicle (not shown). In the present embodiment, the vehicle is a large vehicle such as a truck, and the engine 1 as a vehicle power source mounted thereon is an inline 4-cylinder CNG engine. However, the type, form, and application of the vehicle and the internal combustion engine are not particularly limited. For example, the vehicle may be a small vehicle such as a passenger car, and the engine 1 may also be a gasoline engine or a diesel engine (compression ignition internal combustion engine). In addition, the CNG engine is a type of spark ignition type ...

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PUM

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Abstract

A control device for an internal combustion engine equipped with a turbocharger, a bypass channel for bypassing the compressor of the turbocharger, and a blow-off valve provided in the bypass channel,the control device being equipped with a control unit configured so as to control the blow-off valve. The control unit sets the blow-off valve operation time on the basis of the maximum value of theaccelerator position during a prescribed interval of time immediately before starting operation of the blow-off valve.

Description

technical field [0001] The present disclosure relates to a control device of an internal combustion engine and a control method of the internal combustion engine. Background technique [0002] There is known an internal combustion engine for a vehicle comprising: a turbocharger; a bypass passage bypassing a compressor of the turbocharger; and a pressure relief valve provided in the bypass passage (for example, refer to Patent Document 1 -3). [0003] The pressure relief valve is a valve used to suppress the surge sound (also called loud laughter, Japanese "bofu sound") generated by the surge of the compressor that occurs when the internal combustion engine decelerates. That is, when the throttle valve is rapidly closed during deceleration, the intake air pressure between the throttle valve and the compressor rises, and surge may occur in which intake air flows backward in the compressor. Due to this surge, noise such as a surge sound that is unpleasant to passengers is gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/16F02D23/00
CPCF02B37/16F02D23/00Y02T10/12
Inventor 冈崎敦成田和义
Owner ISUZU MOTORS LTD
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