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Engine system, engine system control device, engine system control method, and program

A technology of engine system and control device, which is applied in the direction of engine control, engine components, combustion engine, etc., and can solve the problem of low turbocharger effect

Active Publication Date: 2018-10-23
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the low rotation area where there is little exhaust gas from the engine, the effect of the turbocharger is small

Method used

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  • Engine system, engine system control device, engine system control method, and program
  • Engine system, engine system control device, engine system control method, and program
  • Engine system, engine system control device, engine system control method, and program

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Experimental program
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no. 1 Embodiment approach ＞

[0025] Hereinafter, embodiments will be described in detail with reference to the drawings.

[0026] figure 1 It is a schematic configuration diagram of the engine system according to the first embodiment.

[0027] The engine system 1 includes an engine 11 , an engine controller 13 , a supercharging system 14 , and an intercooler 15 . The engine system 1 according to the first embodiment does not include a throttle valve for controlling the flow rate of intake air supplied to the engine 11 .

[0028] Examples of the engine 11 include a gasoline engine and a diesel engine.

[0029] The engine controller 13 performs adjustment of the fuel injection amount of the engine 11, control of the supercharging system 14, and other controls based on an engine control signal including a rotational speed and a requested load. The requested load is the requested load on the engine. The engine controller 13 is an example of a control device of the engine system.

[0030] The superchargin...

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PUM

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Abstract

A control device according to the present invention determines whether a demand load demanded of an engine exceeds a load threshold. The control device starts an electric motor if the demand load exceeds the load threshold. If the demand load is equal to or less than the load threshold, the control device performs control such that the degree of opening of an on-off valve increases monotonically with respect to the demand load. The control device switches the on-off valve from an open state to a closed state when the electric motor starts.

Description

technical field [0001] The invention relates to an engine system, a control device for the engine system, a control method and a program for the engine system. Background technique [0002] The operation of a turbocharger relies on the energy the turbine receives from the exhaust. Therefore, the effect of the turbocharger is small in a low rotation range where there is little exhaust gas from the engine. Therefore, an engine system has been studied that can perform supercharging even with little exhaust gas by including a turbocharger and an electric compressor in an air supply path (refer to Patent Document 1). [0003] Previous technical literature [0004] patent documents [0005] Patent Document 1: Specification of US Patent No. 6,920,756 Contents of the invention [0006] The technical problem to be solved by the invention [0007] Usually, in order to control the load of the engine, a throttle valve is provided in the engine system. The throttle valve is a val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/04F02B37/16
CPCF02B37/16F02D41/04F02B33/34F02B39/10F02D41/0007F02D2200/0406F02D2250/18F02B37/007F02B37/162F02B37/04Y02T10/12F02D2200/04F02D2200/1002
Inventor 弥城祐亮林良洋安秉一若井雄二
Owner MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD