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Oil pump control method and device

An oil pump, flip control technology, applied in electrical control, engine control, fuel injection control and other directions, can solve the problems of cumbersome rewiring process, low efficiency and other problems, to solve the problem of solenoid valve wiring reverse, simple and quick solenoid valve wiring the opposite effect

Active Publication Date: 2014-06-25
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of rewiring is very cumbersome and inefficient

Method used

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  • Oil pump control method and device
  • Oil pump control method and device
  • Oil pump control method and device

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] In the prior art, by setting the phases of the oil pumps, it is ensured that the fuel supply strokes and non-fuel supply strokes of the two oil pumps are staggered with each other, that is to say, when one oil pump is in the fuel supply stroke, the other oil pump is in the non-fuel supply stroke. Oil stroke. The drive of the solenoid ...

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Abstract

The embodiment of the invention provides an oil pump control method and device. The method includes the steps that a reversing control module is initialized, and whether an engine meets preset turning conditions in the starting process or not is judged; if yes, the phase of an oil pump is reversed by the reversing control module, and whether the rail pressure of a common rail system reaches a rated value or not is judged; if the rail pressure reaches the rated value, the phase reversing of the oil pump is stopped. The device comprises an initialization module used for initializing the reversing control module, a judgment module used for judging whether the engine meets preset turning conditions in the starting process or not and judging whether the rail pressure of the common rail system reaches the rated value or not after the phase of the oil pump is reversed and the reversing control module used for reversing the phase of the oil pump when the turning conditions are met and stopping phase reversing of the oil pump until the rail pressure reaches the rated value.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an oil pump control method and device. Background technique [0002] The common rail system refers to the fuel supply system that separates the generation of injection fuel pressure from the fuel injection process in the engine. In the existing common rail system, there may be two oil pumps, which supply oil alternately under the force of the camshaft. According to the working principle of the camshaft, when one oil pump is in the oil supply stroke, the other oil pump is in the non-oil supply stroke, thus the effect of alternate oil supply occurs. When the solenoid valve of the oil pump is driven during the oil supply stroke of the oil pump, normal rail pressure will be generated. It can be seen that the driving of the solenoid valves of the two oil pumps must also be carried out alternately with the oil supply stroke. [0003] However, in the process of wiring installation, si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/38
Inventor 王裕鹏冯杰卫文晋武玉臣杨新达
Owner WEICHAI POWER CO LTD