Research on Fast Driving Control Technology of Electric-Control Injector for Marine High Pressure Common Rail Diesel

2014 ◽  
Vol 672-674 ◽  
pp. 1568-1573
Author(s):  
Yan Feng Kong ◽  
Guang Yao Ouyang ◽  
Zhen Ming Liu ◽  
Lu Li
Keyword(s):  
High Pressure ◽  
Low Voltage ◽  
Fast Response ◽  
Solenoid Valve ◽  
Common Rail ◽  
Time Sharing ◽  
Marine Diesel ◽  
Driving Circuit ◽  
Dual Power ◽  
High Pressure Common Rail

Based on the analyses of the current solenoid valve driving circuits in marine diesel, a new type of dual-power double-maintain injector driving circuit is designed for marine high-pressure common-rail diesel. The circuit uses BOOST high voltage (80V) and storage battery low voltage (24V) to make up of dual-power time-sharing driver, which achieves automatic PWM feedback modulation of the solenoid valve injection current from the hardware. Experiments were carried out on a certain type of injector, the results showed that: the driving circuit had fast response time, only 0.045ms from zero to 22A of the solenoid valve current was required; the peak value of driving current has a good consistency, parameters including peakvalue current altitude, lasting time, maintain current altitude and maintain current lasting time could be adjusted flexibly. Besides, the circuit could be flexibly configured without occupying MCU resources.

Design of Intelligent Driving Module for High Pressure Common Rail

2013 ◽  
Vol 344 ◽  
pp. 182-185 ◽  
Author(s):  
Yong Zhi Zhang ◽  
Zhe Zuo ◽  
Bo Lan Liu
Keyword(s):  
High Pressure ◽  
Fuel Injection ◽  
Solenoid Valve ◽  
Common Rail ◽  
Experimental Results ◽  
Injection System ◽  
Fuel Injection System ◽  
Peak Current ◽  
Driving Circuit ◽  
High Pressure Common Rail

This paper proposed a kind of intelligent driving module based on the requirements of high pressure common rail fuel injection system. Many functions of this module were designed such as current multiply holding , boosting and energy recovering. This module occupies less microcontroller resources and makes injectors solenoid valve pull more smoothly. The experimental results show that the solenoid valves peak current can achieve to 20A within 0.1 ms and the storage capacitys potential was not changed significantly. This intelligent driving module could achieve the requirements of high pressure common rail driving circuit.

Design and Simulation of Solenoid Valve Driving Circuit Module for High Pressure Common Rail Diesel Injector

2014 ◽  
Vol 602-605 ◽  
pp. 2645-2648 ◽  
Author(s):  
Jie Hui Li ◽  
Da Wei Liu ◽  
Guo Wei Shi ◽  
Le Sheng Ding ◽  
Guang Yao Zhong
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Control Unit ◽  
Current Mode ◽  
Solenoid Valve ◽  
Common Rail ◽  
Practical Application ◽  
Drive Circuit ◽  
Driving Circuit ◽  
High Pressure Common Rail

According to the principle of BOOST and working characteristics of current mode PWM control chip UC3842, a drive circuit of injector solenoid valve was designed for high pressure common rail diesel engine, and simulation model of drive circuit was build with full use of Multisim. Through the simulation of that model and the practical application of the circuit, the results of comparison show that the design of injector solenoid valve drive circuit is reliable and can meet the working demands of high pressure common rail diesel engine, which provides a theoretical basis and practical application for hardware design of high pressure common rail diesel engine control unit.

Research on Current Feedback Drive Control Technology of Injector Solenoid Valve

2014 ◽  
Vol 494-495 ◽  
pp. 1282-1285
Author(s):  
Zhen Ming Liu ◽  
Guang Yao Ouyang ◽  
Ze Long Zhang
Keyword(s):  
Low Voltage ◽  
Fast Response ◽  
Solenoid Valve ◽  
Electromagnetic Response ◽  
Time Sharing ◽  
Current Feedback ◽  
Drive Current ◽  
Peak Current ◽  
Common Rail Injector ◽  
Drive Circuit

In order to develop drive circuit for high pressure common rail injector solenoid valve, analysis the model of drive circuit and study the relation between voltage and electromagnetic response of solenoid valve. The controllable BOOST circuit was designed to provide the high voltage helping to improve electromagnetic response, and high and low voltage time-sharing driving circuit was designed based on current feedback control. Drive current can be adjusted automatically according to the peak current and holding current, with better consistency of peak current. The result of driving experiment for certain injector shows that: the new drive circuit has fast response, with only 0.045ms rising time for drive current reaching the peak value 22A, and peak current has good consistency.

Experimental study and optimization in the layouts and the structure of the high-pressure common-rail fuel injection system for a marine diesel engine

2020 ◽  
pp. 146808742092161
Author(s):  
Ying Hu ◽  
Jianguo Yang ◽  
Nao Hu
Keyword(s):  
High Pressure ◽  
Fuel Injection ◽  
Common Rail ◽  
Injection System ◽  
Rail Pressure ◽  
Common Rail System ◽  
Injection Volume ◽  
Rail System ◽  
Marine Diesel ◽  
High Pressure Common Rail

The structure and performance of the common-rail system for the marine diesel engine are different from those used for automobile applications, resulting from the larger accumulator volume and the single injection volume. According to the characteristics of the distributed structure of the accumulator volume, a novel optimisation idea to improve the steady-state performance of the high-pressure common-rail fuel injection system designed for a marine engine retrofitting is proposed. The study concentrates on the optimisation in the hydraulic layouts and the structure parameters to manage the energy stored in the pressure waves. First, the test rig was established to study and evaluate the steady-state performance of the high-pressure common-rail system. Second, the experiments of rail orders and injection sequences were carried out to study the influence of different hydraulic layouts on the energy distribution of pressure waves in the system. Meanwhile, a comprehensive and detailed model of the high-pressure common-rail system was built to investigate the structural parameters of a rail-to-injector pipe. Based on the high-pressure common-rail system model, the modified multi-objective genetic algorithm was employed to seek the trade-off between the consistency of the injection volume and the reduction of the rail pressure fluctuation. Results show that a uniform distribution of multiple rails in one cycle contributed to reducing the amplitude of the rail pressure oscillation. In the parameter ranges of this study, a longer length and larger diameter of the rail-to-injector pipe could reduce the standard deviation of the injection volume and the rail pressure fluctuation rate simultaneously.

Design of Driving Circuit of Solenoid Valve for High Pressure Common Rail Diesel Engine Injector

2012 ◽  
Vol 562-564 ◽  
pp. 1054-1057
Author(s):  
Jun Wang ◽  
Yong Hui Jia ◽  
Bing Jie Zu
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Pulse Width ◽  
High Speed ◽  
Simulation Analysis ◽  
Solenoid Valve ◽  
Common Rail ◽  
Experimental Results ◽  
Drive Circuit ◽  
Driving Circuit

Based on the BOSCH injector for research object, driving circuit is adopted the "dual voltage" adjustable pulse width driven model. Using the method of combining simulation analysis and correlation calculation, the key parameters in the boost circuit and the logical drive circuit is studied and selected. Experimental results show that the driver modules meet the needs of high speed solenoid, basically achieved the target.

Sign in / Sign up

Export Citation Format

Share Document