Control method for engine system and engine system
A technology of an engine system and control method, which is applied in the direction of engine cooling, engine lubrication, engine components, etc., and can solve the problems of low control accuracy of the control method
Pending Publication Date: 2022-07-29
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] The object of the present invention is to provide a control method and an engine system for an engine system, so as to solve the problem of low control precision of the control method in the prior art
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[0044] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
[0045] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection...
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The invention discloses a control method for an engine system and the engine system. The control method for the engine system comprises the steps that the duration after an engine is started is recorded; judging whether the duration is less than a first set duration or not; if the duration is smaller than the first set duration, the electromagnetic valve is controlled to be powered off, and the piston nozzle is controlled to spray oil; and if the duration is greater than or equal to the first set duration, controlling the electromagnetic valve according to the engine operation parameters. Specifically, when the duration after the engine is started is smaller than the first set duration, the electromagnetic valve is controlled to be powered off to enable the piston nozzle to spray oil, and engine oil sprayed out of the piston nozzle is used for lubricating the structure of the piston so as to improve the working performance of the piston; after the duration after the engine is started is larger than or equal to the set duration, the opening degree of the electromagnetic valve is controlled through the operation parameters of the engine, so that the fuel injection quantity of the piston nozzle is accurately controlled, and the use performance of an engine system is effectively improved.
Description
technical field [0001] The present invention relates to the technical field of engine systems, and in particular, to a control method for an engine system and an engine system. Background technique [0002] The piston nozzle belongs to the lubrication system of the engine. The engine is generally equipped with a piston nozzle, which is usually set on the oil passage of the engine. During the operation of the engine, the piston nozzle sprays cooling oil to the piston with a high thermal load. [0003] In the existing control method, a control valve is arranged between the piston nozzle and the oil passage. The control valve is mostly a mechanical valve and a solenoid valve, and the oil injection amount of the piston nozzle is controlled by adjusting the opening degree of the control valve. Among them, the existing control method for controlling the fuel injection amount of the piston nozzle through the solenoid valve does not take into account the influence of the duration af...
Claims
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IPC IPC(8): F01M1/08F01P3/08F01P7/14
CPCF01M1/08F01P3/08F01P7/14F01P2007/146
Inventor 田少聪申加伟王超李浩
Owner WEICHAI POWER CO LTD