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Starter for internal-combustion engine

A technology of starting device and internal combustion engine, which is applied in the direction of engine starting, internal combustion piston engine, engine motor starting, etc., can solve the problem of restart delay, etc., and achieve the goal of suppressing the discharge of unburned fuel, ensuring startability and good startability. Effect

Inactive Publication Date: 2010-03-24
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned background art, even if the energization state of the glow plug is properly controlled, fuel injection is started from the cylinder whose piston stops during the compression stroke, and restarting is performed, if the cylinder is difficult to start due to a disconnection of the glow plug, etc. , then sometimes it does not ignite. At this time, a large amount of unburned fuel is discharged. In addition, restarting is delayed.

Method used

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  • Starter for internal-combustion engine

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Embodiment Construction

[0019] figure 1 It is a schematic diagram showing a diesel engine equipped with the starter device of the present invention. In this figure, the diesel engine is, for example, four cylinders, and a fuel injection valve 1 for injecting fuel is respectively arranged in #1 cylinder, #2 cylinder, #3 cylinder, and #4 cylinder, and at the same time, a fuel injection valve 1 for promoting injection of fuel is also arranged. The vaporized glow plug G. The fuel injection of this diesel engine is performed, for example, in order of #1 cylinder, #3 cylinder, #4 cylinder, and #2 cylinder. In this diesel engine, fuel pumped by an engine-driven fuel pump is stored in a common rail shared by each cylinder, and high-pressure fuel in the common rail is injected into each cylinder through each fuel injection valve I. In addition, there is a variable valve timing mechanism, which can change at least the opening timing of the intake valve stepwise or steplessly.

[0020] In this diesel engine,...

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Abstract

In a device for starting an engine, in which when the engine is restarted from idling stop, a cylinder which is restarted initially among all cylinders is determined on the basis of a piston stoppingposition of each cylinder in the idling stop, if there is a specified cylinder which is judged to cause a misfire when the specified cylinder is restarted initially among all cylinders, a piston stopping position of the specified cylinder in the idling stop is controlled such that the specified cylinder does not become a cylinder which is restarted initially among all cylinders.

Description

technical field [0001] The invention relates to a starting device for an internal combustion engine. Background technique [0002] In an internal combustion engine vehicle, in order to reduce fuel consumption, idling stop, which stops idling operation, may be performed while the vehicle is stopped, such as waiting for a signal. When restarting from such an idling stop, the restart must be completed immediately, and when the internal combustion engine is a diesel engine, fuel injection is generally started from the cylinder whose piston stopped during the compression stroke. In such a restart, in order to suppress the waste of electric power, it is proposed to appropriately control the energization state of the glow plug (for example, refer to Japanese Patent Application Laid-Open No. 2004-176569, Japanese Patent Laid-Open No. 8-28319, Japanese Patent Laid-Open No. -16505 communiqué and Japanese Patent Application Laid-Open No. 2002-349370). [0003] In the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D17/00F02D29/02F02D41/06F02D45/00
CPCF02N2019/008F02N19/005F02N99/002F02N11/0814F02D17/00Y02T10/48Y02T10/40
Inventor 曲田尚史服部文昭石山忍古桥道雄中谷好一郎小乡知由
Owner TOYOTA JIDOSHA KK
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