High-speed large-power diesel engine sequential-turbocharging control system
A high-power diesel engine and sequential supercharging technology, which is applied in engine control, electrical control, fuel injection control, etc., can solve the problems of lack of secondary supercharger control strategy, sensor redundancy measures, control parameter display and alarm processing, etc.
Active Publication Date: 2018-12-07
HENAN DIESEL ENGINE IND
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Problems solved by technology
Among them, the control device controls the opening and closing of the gas valve and the air valve by collecting various sensor signals, and lacks a specific control strategy for the conversion of the two-stage supercharger, redundant error measures when the sensor fails, and the display and alarm of control parameters. Processing etc.
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[0018] The present invention is described with reference to the drawings and specific embodiments.
[0019] Such as figure 1 As shown, a high-speed and high-power diesel engine sequential supercharging control system includes: a central processing module 1, the input terminal of the central processing module 1 is respectively connected with the output terminal of the diesel engine speed processing module 2, and the speed processing of the No. 1 basic supercharger through hard wires. Module 4 output end, No. 2 basic supercharger speed processing module 6 output end, No. 1 basic supercharger rear air pressure sensor 8 output end, No. 2 basic supercharger rear air pressure sensor 9 output end, control conversion button 10 , Butterfly valve position monitoring button 21 signal connection, the input end of the diesel engine speed processing module 2 is connected to the output end signal of the diesel engine speed sensor 3, the input end of the No. 1 basic supercharger speed process...
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The invention relates to a high-speed large-power diesel engine sequential-turbocharging control system. The system comprises a central processing module; the input end of the central processing module is in signal connection with the output end of a diesel engine rotating speed processing module, the output end of a first basic supercharger rotating speed processing module, the output end of a second basic supercharger rotating speed processing module, the output end of a first basic supercharger back air pressure sensor, the output end of a second basic supercharger back air pressure sensor,a control switching button and a butterfly valve position monitoring button separately through hard wires; and the output end of the central processing module is in electrical signal connection withthe input end of a control loop of a two-position five-way electromagnetic valve A and the input end of a control loop of a two-position five-way electromagnetic valve B separately through intermediate relays. The high-speed large-power diesel engine sequential-turbocharging control system has the beneficial effects that the control system is applied to control over batch input and output of multiple superchargers of a high-speed large-power diesel engine, and the functions of parameter collection, data processing, parameter displaying, state indication, fault alarm and control output are achieved.
Description
technical field [0001] The invention belongs to the field of multi-supercharger control for diesel engines, in particular to a sequential supercharging control system for high-speed and high-power diesel engines. Background technique [0002] Diesel engines have been widely used on ships as the main power plant for decades. Increasing the supercharging pressure is the main way to increase the power of a diesel engine. With the continuous increase of the supercharging pressure of a diesel engine, its performance in low working conditions deteriorates seriously. In order to improve the performance of high-pressure diesel engines under low working conditions, various turbocharging systems have been developed at home and abroad, among which the multi-supercharger sequential supercharging control technology is one of the effective methods to improve the overall efficiency of diesel supercharging systems. It is especially suitable for applications that require a wide working rang...
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IPC IPC(8): F02D41/00F02D41/22
CPCF02D41/0007F02D41/222F02D2200/04F02D2200/101Y02T10/40
Inventor 张培垄杨迅史四强
Owner HENAN DIESEL ENGINE IND