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Method for controlling an electrically controllable suction valve

A suction valve, no current technology, applied in the direction of electrical control, engine control, fuel injection control, etc., can solve the problem of increased wear of the drive mechanism components, achieve the effect of reducing load and improving robustness

Active Publication Date: 2017-09-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequence is increased wear on the drive train components

Method used

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  • Method for controlling an electrically controllable suction valve
  • Method for controlling an electrically controllable suction valve

Examples

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Embodiment Construction

[0022] in figure 1 The high-pressure pump 2 for a common rail injection system shown very schematically in, includes a pump element with a pump piston 5, which is received in the high-pressure pump 2 in a strokeable manner in order to delimit the high-pressure element chamber 4 The housing member 7 is in the cylinder bore 6. With the drive mechanism 3 currently configured as a cam drive mechanism, the pump piston 5 can be driven for stroke movement. In the delivery stroke of the pump piston-during which the volume in the high-pressure element chamber 4 becomes smaller-the fuel present in the high-pressure element chamber 4 is compressed and is then supplied to the high-pressure reservoir ( Not shown). The high-pressure component chamber 4 is filled with fuel via the electrically controlled suction valve 1, which is currently configured as a valve that opens when there is no current. The suction valve 1 has a valve tappet 8 that can be opened into the high-pressure element cha...

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PUM

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Abstract

The invention relates to a method for controlling an electrically controllable suction valve (1) for controlling the delivery rate of a high-pressure pump (2) in a fuel injection system, in particular a common-rail injection system, of an internal combustion engine. According to the invention, the suction valve (1) is controlled at least at the start of the internal combustion engine as a function of at least one parameter influencing the lubrication conditions in a power unit chamber (3) of the high-pressure pump (2).

Description

Technical field [0001] The invention relates to a method for controlling an electrically controllable suction valve for regulating the delivery volume of a high-pressure pump in a fuel injection system of an internal combustion engine, in particular in a common rail injection system. Background technique [0002] High-pressure pumps in fuel injection systems, especially common rail injection systems, are used to deliver fuel at high pressure. To this end, the high-pressure pump has at least one pump element with a high-pressure element chamber in which fuel is compressed. The fuel delivered at high pressure is then supplied through a high pressure outlet to a high pressure storage, a so-called rail. Then, the fuel under high pressure is injected into the combustion chamber of the internal combustion engine through the injection valve connected to the high-pressure accumulator. [0003] The high-pressure element chamber of the high-pressure pump is usually filled by a suction valv...

Claims

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Application Information

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IPC IPC(8): F02D41/38F02M59/36
CPCF02D41/062F02D41/3845F02D2041/2055F02D2200/0602F02D2200/0606F02D2200/101F02M59/366
Inventor A·克勒F·内克尔
Owner ROBERT BOSCH GMBH
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