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Engine system, engine system control device, engine system control method, and non-transitory recording medium

An engine system and control device technology, applied in engine control, combustion engine, engine components, etc., can solve problems such as low turbocharger effect

Active Publication Date: 2021-02-09
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 non-transitory recording medium
  • Engine system, engine system control device, engine system control method, and non-transitory recording medium
  • Engine system, engine system control device, engine system control method, and non-transitory recording medium

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Experimental program
Comparison scheme
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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 supercharging sy...

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Abstract

The invention provides an engine system, a control device for the engine system, a control method and a program for the engine system. The control device determines whether the requested load requested to the engine exceeds a load threshold. In the event that the requested load exceeds the load threshold, the control device activates the motor. When the requested load is equal to or less than the load threshold, the control device controls so that the opening degree of the on-off valve monotonically increases with respect to the requested load. When the motor is started, the control device switches the on-off valve from an open state to a closed state.

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] Generally, in order to control the load of the engine, a throttle valve is provided in the engine system. The throttle valve is a v...

Claims

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Application Information

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Patent Type & Authority Patents(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