«Yangi O‘zbekistonda islohotlarni amalga oshirishda zamonaviy axborot-kommunikatsiya
texnologiyalaridan foydalanish» mavzusida Xalqaro ilmiy-amaliy konferentsiya
Andijon
27-29 oktabr 2021 yil
584
consumes a portion of the crankshaft power, so it is important to develop an
optimization control method for minimum power consumption by the thermal
system actuators. An interesting cooling system configuration is a radiator fan array
with distributed actuators under real time computer control. A number of research
studies have been conducted to investigate. The optimization of multiple radiator
fan(s) speeds to minimize energy usage for certain efficiency gains can impact
engine performance. This chapter presents a detailed mathematical model to
accurately describe the forced convection heat transfer process in internal
combustion engines using multiple variable speed radiator fans. Based on this
lumped parameter system model, a nonlinear optimization algorithm has been
developed to identify the best combination of the electric motor fan operation. Smart
thermal management systems can positively impact the performance, fuel economy,
and reliability of internal combustion engines. Advanced cooling systems typically
feature multiple computer controlled actuators: a three-way smart valve, a variable
speed pump, and a variable speed electric radiator fan(s). To investigate the
contributions of these electro-mechanical devices, a scale multifunction test bench
was constructed which integrated these actuators, accompanying system sensors,
and a controllable engine thermal load with real time data acquisition and control
hardware/software. This chapter presents a series of experimental studies that focus
on the engine’s thermal transient response to various actuators input control
combinations. An optimal thermal management for Internal Combustion Engines
constitutes one of the most promising and low-cost solutions for the reduction of
fuel consumption and for increasing engine efficiency. The requirements of
regulatory agencies are, in fact, more and more severe and innovative technological
solutions, aimed to reduce vehicle pollutant and CO2 emissions, were proposed.
Fuel efficiency is one of the most important factors regarding the performance
of ground vehicles. Many innovative technologies have been integrated into modern
automobiles to improve the fuel economy. Among these technologies, updating the
engine cooling system has the greatest short term potential and has not been widely
adopted. This article comprehensively investigates advanced engine cooling systems
from a dynamic analysis perspective and the program to control strategies design.
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