scholarly journals Four-Wheel Drive System: Architecture, Basic Vehicle Dynamics and Traction*

Author(s):  
Bir Armaan Singh Gill ◽  
Mayank Sehdev ◽  
Hardeep Singh

Technology has been developing at a very tremendous pace to improve the safety and comfort of the people and when it comes to luxury and comfort, automobiles section is one of the common topic of interest, the most trending among this section is the “Four Wheel Drive (4WD) system” which has become more advanced and sophisticated with time. It has become an essential and appealing part of automobiles in today's era. This system has made the vehicles more secure, both off-road and on-road, enhanced traction of the wheels and power delivery of the engine. With the manipulation in the fundamental structure of a 4WD, various other 4WD options have become available, suiting different types of lifestyle and environment. This paper attempts to explain the different types of 4WD system, their basic structure, basic vehicle dynamics affecting the traction control system and provide a conclusion on various philosophies that the 4WD system adhere.

2011 ◽  
Vol 230-232 ◽  
pp. 1242-1249
Author(s):  
Jian Jun Hu ◽  
Zheng Bin He ◽  
Peng Ge ◽  
Da Tong Qin

In order to improve the performance of four wheel driver vehicle, structural characteristics of inter-axle torque distribution with planetary gear are analyzed, and a dynamic model of four wheel drive vehicle is established. A synthetic control strategy was proposed to achieve the engine throttle control, inter-axle torque distribution control and drive wheel brake control. Traction control system based on fuzzy logic control is designed. The simulation of traction control on split-µ road and low-µ road are carried out. The results show that, the traction control system for four wheel drive vehicle based on fuzzy control can prevent excessive slip of driving wheels, and vehicle traction property and dynamic performance are improved obviously.


2021 ◽  
pp. 423-430
Author(s):  
Damian Gocół

In my article, I analyze selected belief stories from the oral history texts. The research material contains the three biographical accounts of the people in late adulthood (over 65). The belief stories (belief tales) are one of the genres of speech typical for the accounts rooted in a folk view of the world. The demonic characters appear in them, e. g. the devil, the striga or the południca. The belief stories contain a detailed description of the world. They have an explanatory function. They are to explain how the world works. Belief stories do not appear often in the oral history texts created by the people in late adulthood who were not related to the countryside or were related to it in a limited extent. This way of shaping the narrative may be related to changes in the rationality of the narrators. The common and the scientific view of the world intersect in their narratives. The narrators add the numerous comments to their belief stories, in which they distance themselves from the folk view of the world or try to scientifically rationalize the fantastic events. Nevertheless, the fragments in which other genres of speech are realized, especially in anecdotes, reveal a clear relationship between the narrative of oral history and the common sense and belief vision of the world. The narrators often explain their own experiences by introducing elements of belief tales into other genres. Such fragments reveal the schemes of punishment and reward, non-worldly divine intervention, anthropomorphization of inanimate objects and assigning them the rank of demonic beings. Despite the intersection of different types of rationality in the narratives, a belief-based vision of the world still plays an important role in shaping of the oral narratives about the past.


2020 ◽  
Vol 17 (5) ◽  
pp. 2193-2196
Author(s):  
V. Loganathan ◽  
S. Godfrey Winster

Social media is a place where one can create, update and share both the Public/Private Messages and Updates through various Platforms to several communities. It plays a vital role in our Traditional and Cultural Values. There are different types of Media Platform in which one can communicate and gets interacted with each other. But many of the people prefer social media like LinkedIn, Facebook, Twitter, Various Creative and Non Creative blogs and Various YouTube channels. There is a huge transformation in the field of Medicine with marvelous up gradation of speed in social media networking for the common public. People make use of these social media platform to seek general information regarding medicine and diseases and its symptoms.


1988 ◽  
Author(s):  
E. Herb ◽  
H. Krusche ◽  
E. Schwartz ◽  
H. Wallentowitz

Author(s):  
Daniel Bohl ◽  
Nikolaos Kariotoglou ◽  
Andreas B. Hempel ◽  
Paul J. Goulart ◽  
John Lygeros

2021 ◽  
pp. 4-6
Author(s):  
Alka Ganesh Chavan

In India, the post independence period has witnessed a tremendous growth in administration, because it was ushered into a welfare state. But unfortunately, the administration may become authoritative, trampling the civil liberties of the people. Doctrine of Proportionality is the latest recruit for checking the abuse of exercise of administrative power.The article explores the effectivity of the doctrine and its need for application in cases of different types to fulfill the growing needs of justice,


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