Control method, device and system of oil pump
A control method and oil pump technology, applied in the direction of pressure lubricating safety devices, lubricating pump pressure lubrication, controlling lubricant pressure, etc., can solve the problems of engine power waste and large power consumption, and reduce power waste , reduce power consumption, improve the effect of oil change interval
Inactive Publication Date: 2020-09-22
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] Therefore, there is a problem in the prior art that the oil pump outputs a higher pressure when it does not need a higher output pressure, so that the power consumed is relatively large, resulting in a waste of engine power.
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[0041] 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.
[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can, for example, be practiced in sequences other than those...
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The embodiment of the invention provides a control method, device, and system of an oil pump. The control method comprises the following steps of: obtaining the rotating speed of an engine by a speedsensor, and obtaining the load of the engine by a throttle controller, wherein the load of the engine is the load at the rotating speed of the engine; determining the first pressure value required atthe output end of the oil pump according to the rotating speed of the engine and the load of the engine; and outputting a control signal for controlling the state of a pressure regulating valve, and controlling the pressure of the output end of the oil pump to the first pressure value through the state of the pressure regulating valve. The output pressure of the oil pump is adjusted by controllingthe state of the pressure regulating valve, so that the wasting of engine power is reduced, and meanwhile the problems that parts are seriously worn and have short service life under relatively highoutput pressure, are also avoided.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of oil pumps, in particular to a control method, device and system for an oil pump. Background technique [0002] The oil pump is an indispensable part of the engine. It provides power for the oil in the engine and forces the oil from the oil pan to the various lubricating parts of the engine to ensure the normal operation of the engine. [0003] The oil pump of the engine is composed of an oil pump body and a mechanical safety valve. When the engine is working, the oil pump works under the drive of the power gear. When the engine speed is fast, the outlet pressure of the oil pump also increases. When the outlet pressure of the oil pump exceeds the pressure of the safety valve, the safety valve opens to discharge part of the oil, so that the outlet pressure of the oil pump is maintained at a constant value. . In the prior art, the outlet pressure of the oil pump is proportional to...
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IPC IPC(8): F01M1/16F01M1/02F01M1/20
CPCF01M1/02F01M1/16F01M1/20
Inventor 林敬国崔永张俊龙刘金磊李雯宗红霞王超
Owner WEICHAI POWER CO LTD