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Engine oil pre-supply control method

A control method and pre-supply oil pump technology, applied in the direction of controlling lubricant pressure, pressure lubricating safety device, timing lubrication, etc., can solve the problems of not distinguishing the state of cold engine and hot engine, and the engine cannot be guaranteed, so as to avoid cylinder scuffing and Lava effect

Inactive Publication Date: 2020-01-10
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology is controlled by an external switch, and the pre-fuel supply time can be modified artificially, without distinguishing between the cold engine and the hot engine state, and it cannot guarantee that the engine will start only when a certain oil pressure is met, which belongs to external control

Method used

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  • Engine oil pre-supply control method

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Embodiment Construction

[0011] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0012] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0013] figure 1 is a schematic flowchart of a method for controlling pre-supply oil according to an embodiment of the present invention, as shown in figure 1 As shown, a method for controlling oil pre-supply according to a preferred embodiment of the present invention includes: before the engine is started (by pressing the "start" button), the ECU controls the pre-supply pump for the first time to pre-supply engine oil to ...

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Abstract

The invention discloses an engine oil pre-supply control method. The method comprises the steps that before an engine is started, an ECU controls a pre-supply oil pump at the first time to pre-supplyengine oil to all movement pairs for first preset time; according to the current engine oil temperature monitored by an engine oil temperature sensor, the ECU judges a current pre-supplied oil threshold value; and when the oil pressure of the pre-supplied oil is larger than or equal to the pre-supplied oil threshold value, the pre-supply oil pump stops working, and the engine is normally started.Accordingly, by means of the engine oil pre-supply control method, engine oil pressure before starting of the large-power engine is ensured, and the phenomena such as scuffing and bearing score of thelarge-power engine are avoided.

Description

technical field [0001] The invention relates to an engine control system, in particular to a control method for pre-supplying engine oil. Background technique [0002] Before starting the high-power engine, in order to prevent the dry friction of each moving pair from causing the high-power engine to scuff and pull, it is necessary to pre-supply oil to each moving pair for pre-lubrication before starting. In order to ensure that the engine oil has reached the moving parts, it is necessary to ensure that the engine oil pressure is at a certain value before the engine can be started, otherwise the engine is not allowed to be started, forming a protection strategy for the engine. [0003] The existing technology is controlled by an external switch, and the pre-fuel supply time can be modified arbitrarily. It does not distinguish between cold and hot engine states, and cannot guarantee that the engine will start only when a certain oil pressure is met, which belongs to external ...

Claims

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Application Information

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IPC IPC(8): F01M1/16F01M1/14F01M1/18F01M1/20
CPCF01M1/14F01M1/16F01M1/18F01M1/20
Inventor 邵春陶正科周明华吴彦磊张万枝李玉贺
Owner GUANGXI YUCHAI MASCH CO LTD
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