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Control apparatus for internal combustion engine and control method of internal combustion engine

A technology of control device and internal combustion engine, applied in engine control, fuel injection device, fuel injection control and other directions, can solve problems such as misfire and engine vibration

Inactive Publication Date: 2014-06-04
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the engine may vibrate or misfire due to the combustion of an overly rich air-fuel mixture

Method used

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  • Control apparatus for internal combustion engine and control method of internal combustion engine
  • Control apparatus for internal combustion engine and control method of internal combustion engine
  • Control apparatus for internal combustion engine and control method of internal combustion engine

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Embodiment Construction

[0029] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. In the exemplary embodiment, the present invention is applied to a fuel supply system of a gasoline engine vehicle, but the present invention is not limited to application to gasoline engine vehicles. That is, the present invention can also be applied to hybrid vehicles or diesel vehicles. The control device for an internal combustion engine according to the exemplary embodiment is installed in a dual-injection type internal combustion engine using both in-cylinder injection and port injection, such as, for example, an inline four-cylinder gasoline engine.

[0030] Now, the structure of the exemplary embodiment will be described. Such as figure 1 and 2 As shown, an engine 1 includes an engine main body 2, an intake system 3 and an exhaust system 4, a fuel supply system 5, a cooling system 6, and an ECU (Electronic Control Unit) 7 serving as a control devi...

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PUM

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Abstract

A control apparatus that controls a fuel supply system of an internal combustion engine of a vehicle, the fuel supply system including a low-pressure fuel supply mechanism that injects low-pressure fuel into an intake port of the internal combustion engine, and a high-pressure fuel supply mechanism that injects high-pressure fuel into a cylinder of the internal combustion engine, includes a control portion that controls a supply of fuel to the internal combustion engine from the fuel supply system.; Immediately after the vehicle stops, when the internal combustion engine satisfies a predetermined condition, the controller idles the internal combustion engine by supplying the high-pressure fuel to the internal combustion engine by the high-pressure fuel supply mechanism, and after stopping the supply of fuel by the high-pressure fuel supply mechanism, idles the internal combustion engine by supplying the low-pressure fuel to the internal combustion engine by the low-pressure fuel supply mechanism.

Description

technical field [0001] The present invention relates to a control device for an internal combustion engine, and a control method for the internal combustion engine. Background technique [0002] Among various types of internal combustion engines used in vehicles, there is a so-called in-cylinder injection type internal combustion engine that is a spark ignition engine that directly injects fuel into cylinders. This in-cylinder injection type engine is provided with a fuel supply system that supplies fuel into cylinders. [0003] In the fuel supply system, high pressure fuel is accumulated and stored inside the delivery pipe. This high-pressure fuel is directly injected into the cylinders at equal pressure from injectors provided in each cylinder. The fuel accumulated and stored in the delivery pipe is pressurized to a high pressure by being compressed by the high pressure pump after being compressed by the feed pump. The intake air volume of the high pressure pump is cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/30F02D41/04F02M69/04
CPCF02D41/3094F02D41/30F02D41/042
Inventor 生驹卓也立花良二益城善一郎阿部亮二斋藤健一秋田龙彦本田友明浜本嘉明
Owner TOYOTA JIDOSHA KK