Based on intelligent controller design of automotive engine cooling in AVR microcontroller

2011 ◽  
Author(s):  
Li Shujiang ◽  
Shan Chaoying ◽  
Wang Xiangdong ◽  
Kong Lixin
Keyword(s):  
Controller Design ◽  
Automotive Engine ◽  
Intelligent Controller ◽  
Engine Cooling ◽  
Avr Microcontroller

Application of acoustic analogy to automotive engine-cooling fan noise prediction

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 1095-1098 ◽  
Author(s):  
Jeonghan Lee ◽  
Kyungseok Cho ◽  
Soogab Lee
Keyword(s):  
Noise Prediction ◽  
Acoustic Analogy ◽  
Fan Noise ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Cooling Fan

Study on Intelligent Controller Design of Flow Metrological Calibration System

2020 ◽  
Author(s):  
Xiong Yin ◽  
Kai Wen ◽  
Yan Wu ◽  
Lei Zhou ◽  
Jing Gong
Keyword(s):  
Neural Network ◽  
Natural Gas ◽  
Pid Controller ◽  
Controller Design ◽  
Calibration System ◽  
Calibration Process ◽  
Intelligent Controller ◽  
Flow Adjustment ◽  
Precise Adjustment ◽  
Valve Opening

Abstract In recent years, China ramped up imports of natural gas to satisfy the growing demand, which has increased the number of trade meters. Natural gas flowmeters need to be calibrated regularly at calibration stations to ensure their accuracy. Nowadays, the flow metrological calibration process is done by the operator manually in China, which is easy to be affected by personnel experience and proficiency. China is vigorously developing industry 4.0 and AI(artificial intelligence) technologies. In order to improve the calibration efficiency, a design scheme of intelligent controller for flow metrological calibration system is first proposed in this paper. The intelligent controller can replace the operator for process switching and flow adjustment. First, the controller selects the standard flowmeter according to the type of the calibrated flowmeter, and switches the calibration process. To accurately control the calibration flow for 180 seconds, the controller continuously adjusts the regulating valve with a sequence of commands to the actuator. These commands are generated by intelligent algorithm which is predefined in the controller. Process switching is operated automatically according to flowmeter calibration specifications. In order to reach the required flow point quickly, the flow adjustment is divided into two steps: preliminary adjustment and precise adjustment. For preliminary adjustment, a BP neural network will be built first using the field historical data and simulation results. This neural network describes the relationship between the valve-opening scheme and the calibration flow. Therefore, it could give a calibration flow as close as possible to the expected value during calibration. For precise adjustment, an adaptive PID controller is used. It could adjust the valve opening degree automatically to make sure the flow deviation meet the calibration requirements. Since the PID controller is a self-adaptive PID controller, the process of adjustment is very quick, which can reduce the calibration time largely. After each calibration, both the original neural network and the adaptive function of the controller will be updated to achieve the self-growth. With the information of the calibrated flowmeter, the entire calibration system can run automatically. The experiment in a calibration station shows that the intelligent controller can control the deviation of the flow value within 5% during 4∼5 minutes.

scholarly journals A review of evaporative cooling system concepts for engine thermal management in motor vehicles

2016 ◽  
Vol 231 (8) ◽  
pp. 1126-1143 ◽  
Author(s):  
Soheil Jafari ◽  
Julian F Dunne ◽  
Mostafa Langari ◽  
Zhiyin Yang ◽  
Jean-Pierre Pirault ◽  
...  
Keyword(s):  
Thermal Management ◽  
Carbon Dioxide Emissions ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Motor Vehicles ◽  
Past Century ◽  
Cooling Systems ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Evaporative Cooling System

The evaporative cooling system concepts proposed over the past century for engine thermal management in automotive applications are examined and critically reviewed. The purposes of this review are to establish the evident system shortcomings and to identify the remaining research questions that need to be addressed to enable this important technology to be adopted by vehicle manufacturers. Initially, the benefits of the evaporative cooling systems are restated in terms of the improved engine efficiency, the reduced carbon dioxide emissions and the improved fuel economy. This is followed by a historical coverage of the proposed concepts dating back to 1918. Possible evaporative cooling concepts are then classified into four distinct classes and critically reviewed. This culminates in an assessment of the available evidence to establish the reasons why no system has yet been approved for serial production commercially. Then, by systematic examination of the critical areas in evaporative cooling systems for application to automotive engine cooling, the remaining research challenges are identified.

Detailed Study of an Efficient Small Diameter Automotive Engine Cooling Fan System

2003 ◽  
Author(s):  
S. Moreau ◽  
F. Bakir
Keyword(s):  
Small Diameter ◽  
Rapid Prototype ◽  
Efficiency Improvement ◽  
Test Rig ◽  
Cfd Simulations ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Cooling Fan ◽  
Radial Equilibrium

This paper deals with stator efficiency improvement meant for automotive engine cooling fan systems. A new rapid prototype of a long stator designed for a small diameter Valeo rotor (320 mm) has been manufactured and tested on a recently designed Valeo-LEMFI test rig. The following points are presented: • Overall performances of the 320 mm rotor alone. • Overall performances of the 320 mm rotor combined with the new long stator vanes: this study confirms the gain of efficiency foreseen previously with the simplified radial equilibrium code VENTAX. • Steady velocities measured 41 mm downstream of the stage configuration: These measurements obtained by using a 5-hole probe show high deflection carried out by the stators with long chord lengths. Comparisons with preliminary CFD simulations are also shown for both the overall performances and the local velocities.

Intelligent controller design and application

2003 ◽  
Author(s):  
M. Torfeh-Isfahani ◽  
Y. Akimoto ◽  
H. Tanaka ◽  
H. Ogi
Keyword(s):  
Controller Design ◽  
Intelligent Controller ◽  
Design And Application

Efficient Stator Design for Automotive Engine Cooling Fan Systems

2002 ◽  
Author(s):  
F. Bakir ◽  
S. Moreau
Keyword(s):  
Efficiency Improvement ◽  
Test Rig ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Cooling Fan ◽  
Stator Design ◽  
Radial Equilibrium

This paper deals with stator efficiency improvement meant for automotive engine cooling fan systems. Four stators designed for a Valeo 380 mm rotor were manufactured and tested on a newly designed Valeo-Lemfi test rig. The following points are presented: • Overall performances of the 380 mm rotor. • Overall performances of the 380 mm rotor combined with a short chord stator. Inefficiency of such a design is shown: Slight deflection carried out by the stator is the cause of the slight gain of efficiency. • Overall performances of the 380 mm rotor combined to three long chord stators: this study confirms the gain of efficiency foreseen previously with the simplified radial equilibrium code VENTAX. • Steady velocities measured 33 mm downstream the various stage configurations: These measurements obtained by using a 5-holes probe show high deflection carried out by the long chord stators.

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