Diesel engine starting and stopping control method with electric pre-supply oil pump
A pre-fuel pump and control method technology, applied in engine control, electrical control, machine/engine, etc., can solve problems such as diesel engine damage, and achieve the effect of avoiding dry friction
Inactive Publication Date: 2021-04-20
淄柴机器有限公司
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Problems solved by technology
[0008] In the traditional starting and stopping method, the electric pre-supply pump and the diesel engine are operated separately. For various reasons, some users do not start the electric pre-supply pump for lubrication before starting and after stopping the diesel engine, resulting in damage to the diesel engine.
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[0029] The attached drawing shows the best embodiment of the starting and stopping control method of the diesel engine equipped with electric pre-supply pump, and the present invention will be further described in detail in conjunction with the accompanying drawings.
[0030] A starting and stopping control method of a diesel engine equipped with an electric pre-supply pump, comprising the following steps:
[0031] A. When the diesel engine is started: Press and hold the "Start" button of the diesel engine monitor, and the monitor first controls the operation of the electric pre-supply pump. When the lubricating oil pressure ≥ P1 or the pre-supply time ≥ Ti1, only When one condition is met, the electric pre-supply pump can stop running, and the diesel engine can start;
[0032] If the pre-supply time ≥ Ti1, but the lubricating oil pressure does not reach P1, the monitor sends out an alarm signal, the diesel engine starts normally, and the pre-supply failure alarm signal has an...
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The invention relates to a diesel engine starting and stopping control method with an electric pre-supply oil pump. The diesel engine starting and stopping control method comprises the following steps that A, when a diesel engine is started, a 'starting' button of a diesel engine monitor is pressed, the monitor firstly controls the electric pre-supply oil pump to operate, when the lubricating oil pressure of lubricating oil is greater than or equal to P1 or the pre-supply time is greater than or equal to Ti1, the electric pre-supply oil pump stops operating, and the diesel engine starts to start; and B, when the diesel engine stops, the monitor detects that the rotating speed of the diesel engine is smaller than or equal to the minimum rotating speed N1 and the lubricating oil temperature is larger than or equal to Te1, the electric pre-supply oil pump is controlled to operate, and pre-supply is stopped after the lubricating oil pre-supply time exceeds Ti2. The diesel engine starting and stopping control method with the electric pre-supply oil pump can be suitable for most diesel engines, and electric pre-oil-supply pump starting and diesel engine starting and parking interlocking control is achieved.
Description
technical field [0001] The invention belongs to the technical field of diesel engines, and in particular relates to a starting and stopping control method of a diesel engine equipped with an electric pre-supply pump. Background technique [0002] In order to ensure the safe and normal operation of the diesel engine, the diesel engine is generally equipped with a pre-supply oil pump, which pre-supplies lubricating oil before starting and after stopping, and forms a lubricating oil film between the moving parts. One is to prevent the dry grinding of the diesel engine after starting, which will cause the wear of the parts; the other is to take away the heat after the engine stops to prevent the temperature of the moving parts from being too high. [0003] At present, the starting and stopping method of a diesel engine equipped with an electric pre-supply pump includes the following steps: [0004] 1. The electric pre-supply pump and the diesel engine are equipped with separate...
Claims
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IPC IPC(8): F02D41/04F02D41/06F01M1/02F01M1/18
Inventor 黄猛辛强之何宗健郭晋刘毅穆振仟李龙袁磊李雅楠
Owner 淄柴机器有限公司