Auxiliary engine lubricating control method and device

An engine and pre-lubrication technology, applied in the direction of engine lubrication, lubrication indicating device, engine components, etc., can solve the problems of waste of lubrication power and insufficient lubrication, and achieve the effect of avoiding insufficient lubrication or waste of lubrication power for a long time.

Active Publication Date: 2018-04-24
WEICHAI POWER CO LTD
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Problems solved by technology

[0004] In view of this, the present invention provides an engine auxiliary lubrication control method and device to solve the problem that the existing timing lubrication method easily causes insufficient lubrication or wastes electric energy for long-term lubrication

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  • Auxiliary engine lubricating control method and device
  • Auxiliary engine lubricating control method and device
  • Auxiliary engine lubricating control method and device

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0047] Pre-lubrication: before the engine starts, the lubrication operation performed by the electric oil pump.

[0048] Engine auxiliary lubrication system: refers to the relevant oil circuit composed of electric motor oil pump and branch oil pipe. Among them, the electric motor oil pump is installed on the side of the engine, borrowing the oil pan, oil filter, oil filter, oil cooler, oil pressure sensor and lubricating oil circuit in the original lubrication...

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Abstract

The invention provides an auxiliary engine lubricating control method and device. The method comprises the steps that under the situation that an engine controller is in a power-on state, whether thefirst current electric quantity of a battery is in the preset electric quantity allowed range or not is judged; if it is judged that the first current electric quantity of the battery is in the presetelectric quantity allowed range, whether a starter is in a non-start state or not and whether the current rotation speed of an engine is smaller than the rotation speed threshold value or not are judged; if the starter is in the non-start state and/or the current rotation speed is smaller than the rotation speed threshold value, a motor oil pump is controlled to conduct the pre-lubrication operation on the basis of the running state of an engine oil pressure sensor and the current work time duration of the motor oil pump. According to the disclosed method, the pre-lubricating degree can be effectively controlled by utilizing the engine controller state, the battery electric quantity, the starter state, the engine rotation speed, the engine oil pressure sensor state and the motor oil pumpwork duration, and accordingly the problem about insufficient lubricating or electric energy waste due to long-time lubricating is relieved or even solved.

Description

technical field [0001] The present invention relates to the technical field of engines, and more specifically, relates to an engine auxiliary lubrication control method and device. Background technique [0002] Before the engine of a motor vehicle is started, the engine lubrication system is generally in an oil-free state. Starting the engine in this oil-free state will cause dry friction because the friction pairs have not been lubricated, thereby shortening the service life of each friction pair. [0003] In order to alleviate the problem of dry friction, the engine is equipped with an auxiliary lubrication system. The auxiliary lubrication system is an electric motor oil pump and related oil circuits added on the basis of the original lubrication system. The engine controller will control the motor oil pump according to the pre-set lubrication time. Lubrication, and this regular lubrication method is likely to cause problems such as insufficient lubrication or long-term ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/10F01M11/00
CPCF01M11/00F01M11/10
Inventor 么丽丽王贵琛王超宁娜
Owner WEICHAI POWER CO LTD
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