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Method of closing diesel engine possessing at least two cylinders

A diesel engine and cylinder technology, which is applied in the direction of engine starting, engine motor starting, electrical control, etc., can solve problems such as interference and unnatural movement of internal combustion engines, and achieve the effect of reducing load and improving comfort

Inactive Publication Date: 2012-04-18
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the driver feels that the movement of the internal combustion engine after a stop is unnatural and disturbing

Method used

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  • Method of closing diesel engine possessing at least two cylinders
  • Method of closing diesel engine possessing at least two cylinders
  • Method of closing diesel engine possessing at least two cylinders

Examples

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Embodiment Construction

[0018] figure 1 An internal combustion engine 100 is shown which may serve as a basis for the invention. Internal combustion engine 100 is designed as a diesel engine.

[0019] In this exemplary embodiment, internal combustion engine 100 comprises four cylinders 110 , 120 , 130 , 140 , which each have adjustable intake valves 111 , 121 , 131 or 141 and Mechanically actuated exhaust valves 112 , 122 , 132 or 142 . The intake valves 111 to 141 are designed as adjustable, hydraulically actuated here and controlled by means of solenoid valves. In order to control the intake valves in particular, a control device 180 is provided. The intake and exhaust valves are operated by camshaft 150 . A piston 113 , 123 , 133 or 143 is arranged movable up and down in each of the cylinders 110 to 140 and is connected to a crankshaft (not shown).

[0020] exist figure 1 In the depicted state, cylinder 110 is at the beginning of the power stroke, cylinder 120 is at the beginning of the exha...

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PUM

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Abstract

The invention relates to a method of closing a diesel engine (100) possessing at least two cylinders (110, 120, 130, 140). According to the disconnecting requirement, during the process from the inertia operation to the stop of the diesel engine (100), intake valves (111, 112, 113, 114) and / or vent valves (112, 122, 132, 142) of at least a first cylinder (130) and a second cylinder (110) are triggered, so the cylinder inflation level of the first cylinder (130) is higher than the cylinder inflation level of the second cylinder (110) at the stop moment. The first cylinder (130) is in the compression stroke and the second cylinder (110) is in the power stroke at the stop moment.

Description

technical field [0001] The invention relates to a method for shutting down a diesel engine having at least two cylinders. Background technique [0002] Traditionally, diesel engines are started by means of so-called starters or starters, which drive the diesel engine for one or several revolutions until autoignition begins. So-called start / stop operating modes are also known, in which the internal combustion engine is switched off in certain situations and should be started again as quickly as possible and in particular quickly. In this respect it is known to switch off the internal combustion engine when the motor vehicle is stopped, for example on a slope, and to start the internal combustion engine again when the clutch or the accelerator pedal is actuated. It is desirable to carry out such a restart process quickly and without time-consuming involvement of the starter in order to preserve the starter, increase the operational reliability of the motor vehicle and avoid d...

Claims

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Application Information

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IPC IPC(8): F02D45/00
CPCF02N19/005F02N11/0814F02D41/008F02D13/08F02D17/02F02D41/0002F02D41/042F02D2041/001F02D13/0215Y02T10/42Y02T10/12Y02T10/40
Inventor S·德策科G·科内蒂
Owner ROBERT BOSCH GMBH
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