Marine engine control method and common rail system
A marine engine and common rail system technology, applied in the direction of engine control, engine components, machines/engines, etc., can solve problems such as failure to achieve fuel saving, energy saving and emission reduction, damage, undeveloped overpower running time protection, etc.
Pending Publication Date: 2021-03-16
广西玉柴船电动力有限公司
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Problems solved by technology
[0003] The electronically controlled high-pressure common rail system is widely used in vehicle engines, and the electronically controlled high-pressure common-rail system is also gradually applied to marine high-speed and high-power diesel engines. However, the existing marine engine has a single control method and cannot achieve fuel efficiency under different operating conditions. and the purpose of energy saving and emission reduction
[0004] Due to special working conditions, marine diesel engines and power generation units are designed with the function of over-power operation, but there is no time protection for over-power operation. damage
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[0037] The present invention will be further described below in conjunction with the specific embodiments in the accompanying drawings.
[0038] refer to Figure 1-8 , a marine engine control method, comprising:
[0039] According to the different working conditions of the marine engine, the standard external characteristic curve, the economical external characteristic curve, the fuel-saving external characteristic curve, the no-load external characteristic curve and the common rail pressure MAP are established. The common rail pressure corresponding to the characteristic curve, the fuel-saving external characteristic curve, and the no-load external characteristic curve; the standard external characteristic curve is a general external characteristic curve, which can be applied to various working conditions, but the performance is not optimal when applied to each working condition. The economic external characteristic curve is an external characteristic curve aimed at economy,...
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The invention discloses a marine engine control method, relates to the technical field of engine control, and mainly solves the technical problem that a conventional marine engine is poor in operationeconomy. The method comprises the following steps: establishing a standard external characteristic curve, an economic external characteristic curve, a fuel-saving external characteristic curve, a no-load external characteristic curve and a common rail pressure MAP according to different working conditions of the marine engine; and controlling a common rail system of the marine engine to operate according to the external characteristic curve corresponding to the working mode selected by a user and the common rail pressure MAP. The invention further discloses a common rail system of the marineengine. According to the method and the system, the corresponding external characteristic curve can be started and the common rail pressure can be controlled to control the common rail system to operate according to the working mode selected by the user, and the purposes of saving fuel, saving energy and reducing emission can be achieved.
Description
technical field [0001] The invention relates to the technical field of engine control, more specifically, it relates to a marine engine control method and a common rail system. Background technique [0002] Marine diesel engines have been the main power for civilian ships, small and medium-sized ships and conventional submarines. Marine diesel engines can be divided into main engine and auxiliary engine according to their role in the ship. The main engine is used as the propulsion power of the ship, and the auxiliary engine is used to drive generators and other equipment. [0003] The electronically controlled high-pressure common rail system is widely used in vehicle engines, and the electronically controlled high-pressure common-rail system is also gradually applied to marine high-speed and high-power diesel engines. However, the existing marine engine has a single control method and cannot achieve fuel efficiency under different operating conditions. and the purpose of ...
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Login to View More IPC IPC(8): F02M55/02F02M31/20F02M37/32F02D41/38
CPCF02M55/025F02M31/20F02M37/32F02D41/3827F02D41/3836
Inventor 黄第云罗蔼杰毛平安张万枝温芹邵春
Owner 广西玉柴船电动力有限公司