Control method and device of engine system and engine system

An engine system and control method technology, applied in engine components, machines/engines, mechanical equipment, etc., can solve problems such as failure to timely reflect the lubrication state of the supercharger, engine fire, and large fault detection errors.

Active Publication Date: 2021-08-17
HUNAN DEUTZ POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the supercharger fails, the rotor system of the supercharger is damaged and the sealing system fails. At this time, the lubricating oil can still be cooled through the supercharger, resulting in the lag of the temperature change of the coolant, which cannot reflect the supercharger in time. Changes in the lubrication state lead to large fault detection errors, and even cause engine fire faults

Method used

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  • Control method and device of engine system and engine system
  • Control method and device of engine system and engine system
  • Control method and device of engine system and engine system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like figure 1 As shown, according to the first aspect of the present invention, a control method of an engine system is proposed, including:

[0050] Step 102, during the operation of the engine, acquire the lubricating oil flow of the oil return line;

[0051] Step 104 Control the valve body and / or the engine according to the lubricating oil flow.

[0052] In this embodiment, since there is an abnormal wear in the supercharger bearing, such as the supercharger bearing, the supercharger is broken and the supercharger sealing ring is faded, and the amount of lubricating oil through the supercharger will be much greater than The amount of lubrication during normal operation. To this end, during the operation of the engine, the fluid flow rate of the engine system oil supply line is periodically acquired, determined whether or not the pressurizer has failed according to the lubricant flow, and adjusts the valve body and / or engine in the event of a failure. Thereby reducing...

Embodiment 2

[0055] like figure 2 As shown, in accordance with an embodiment of the present invention, a control method of an engine system is proposed, including:

[0056] Step 202, during the operation of the engine, acquire the lubricating oil flow of the oil return line;

[0057] Step 204: Whether the lubricating oil flow is less than or equal to the first flow threshold, if yes, enter step 206, if, proceed to step 212;

[0058] Step 206: Keep the current opening degree of the valve body;

[0059] Step 208, whether the lubricating oil flow is greater than the second flow threshold, and if yes, the process proceeds to step 210, if, proceeds to step 202;

[0060] Step 210 output the second prompt information;

[0061] Step 212, reduce the current opening degree of the valve body according to the first preset offset, and output the first prompt information.

[0062] Wherein, the first flow rate threshold is greater than the second flow rate threshold.

[0063] In this embodiment, during the o...

Embodiment 3

[0069] like image 3As shown, in accordance with an embodiment of the present invention, a control method of an engine system is proposed, including:

[0070] Step 302, during the operation of the engine, acquire the lubricant flow of the oil return line;

[0071] Step 304: Whether the lubricating oil flow is less than or equal to the first flow rate threshold, if yes, enter step 306, if, enter step 308;

[0072] Step 306, keep the current operating power of the engine;

[0073] Step 308, reduce the current run power of the engine according to the second preset offset, and output the first prompt information.

[0074] In this embodiment, during operation of the engine, the current operation power of the engine can also be adjusted according to the size relationship between the lubricating oil flow and the first flow threshold, and then adjust the flow of lubricating oil from the engine into the supercharger. .

[0075] Specifically, in the case where the lubricating oil flow is les...

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Abstract

The invention provides a control method and device of an engine system and the engine system, and belongs to the technical field of engine system control. The control method of the engine system comprises the steps that in the operation process of an engine, the lubricating oil flow of an oil return pipeline is obtained; a valve body and / or the engine are / or controlled according to the lubricating oil flow. Thus, whether a supercharger breaks down or not is judged according to the lubricating oil flow, and the valve body and / or the engine are / is adjusted when the supercharger breaks down. Thus, the lubricating oil flow entering the supercharger from the engine is reduced, serious faults such as engine ignition caused by lubricating oil participating in combustion and advanced abrasion caused by lack of lubricating oil of the engine when a supercharger rotor or a sealing piece breaks down are effectively avoided, and the supercharger and the engine are protected in advance when the supercharger works abnormally.

Description

Technical field [0001] The present invention relates to the field of engine system control technology, and in particular, a control method, a control device, and an engine system of an engine system. Background technique [0002] At present, the method of protecting the exhaust gas turbocharger is mainly: whether or not the temperature of the coolant exceeds the limit value, it is determined whether the supercharger has failed, thereby controlling the supply of the lubricant, so that the supercharger lubricates always satisfies the lubrication requirements to protect The supercharger is safely running. However, when the booster fails, the transformer's rotor system is damaged, the sealing system fails, and the lubricant can still be cooled by the supercharger, resulting in the lag of the temperature change of the coolant, and cannot reflect the supercharger in time. Changes in lubrication, resulting in large fault detection errors, and even causing the engine's fire failure. Inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B39/14
CPCF02B39/14
Inventor 周成尧丁树峰李昊
Owner HUNAN DEUTZ POWER CO LTD
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