Idling reverse gear engaging flameout preventing device of engine for electronic control ship

Abstract

The invention discloses an idling reverse gear engaging flameout preventing device of an engine for an electronic control ship. The idling reverse gear engaging flameout preventing device comprises a ship forward gear signal terminal and a ship reverse gear signal terminal, the two of which are used for acquiring twinkling signals of a gear box before actual gear engagement after a gear engaging handle is operated by the ship operating personnel, respectively, a pressure signal conversion unit, an ECU air-conditioning idling signal pin and a high-level voltage signal terminal, and a time-delay relay switch, wherein the input end of the pressure signal conversion unit is connected with the ship forward gear signal terminal and the ship reverse gear signal terminal; the pressure signal conversion unit is used for converting the gear engaging signals acquired by the ship forward gear signal terminal and the ship reverse gear signal terminal. The idling reverse gear engaging flameout preventing device guarantees that the engine is capable of bearing larger-torque power output at the moment of reversing the ship by engaging the idling reverse gear, and therefore, the purpose of preventing idling reverse gear engaging flameout of the ship is achieved.

Description

technical field [0001] The invention relates to the field of marine engines, in particular to an anti-flame-out device for idling and reverse gears of an electronically controlled marine engine. Background technique [0002] Since the ship itself does not have a parking device similar to the vehicle brake system, its parking is performed by continuously changing forward and backward gears and reversing operations. In the working conditions of entering and leaving the port, docking the ship, and emergency parking, etc., all rely on changing and reversing the ship. The position (the boat moves forward and hangs the reverse gear, and the backward hangs the forward gear) realizes. According to the user's usage habits and gearbox requirements, low speed (idling) operation is required in the application of reverse gear, because of the matching of various types of ships, different operating conditions of ships and the inertia of the ship's power system. It is necessary to overcome...

AI Technical Summary

Problems solved by technology

According to the user's usage habits and gearbox requirements, low speed (idling) operation is required in the application of reverse gear, because of the matching of various types of ships, different operating conditions of ships and the inertia of the ship's power system. It is necessary to overcome a large momentary resistance when suddenly shifting into reverse gear, which may exceed the idle load capacity of the engine itself, resulting in the engine being forced to shut down, unable to stop the ship in time and causing accidents

In practical application, the user will increase the throttle opening and increase the speed to prevent the engine from stalling while shifting into gear. no ship accident

[0003] Existing ship reversing at idling has the following disadvantages: firstly, it is necessary to manually control the coordinated operation of the accelerator and the gear position, which is prone to misoperation or unreasonable operation and lead to collision accidents; secondly, the engine needs to have a large low-speed load In order to achieve this goal, it is generally required to match the engine with a larger bore, resulting in uneconomical matching of the ship; thirdly, because the propeller gives the engine a lot of resistance when idling in gear and reversing the ship, in order to reduce the resistance, the ship is required to match more Small propeller propulsion system, which reduces the economy of the ship's vehicle operation

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