scholarly journals Study on PHM Method Suitable for Motor-Driven Commercial Vehicle

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hong Suk Chang ◽  
Jong Chan Park
Keyword(s):  
Data Acquisition ◽  
Automobile Industry ◽  
Commercial Vehicle ◽  
Optimization Technique ◽  
Remaining Useful Life ◽  
Analysis Model ◽  
Commercial Vehicles ◽  
The Status ◽  
Data Driven Approach ◽  
Single Vehicle

Commercial vehicles need to use PHM because the drivers cannot earn money during that period when a breakdown occurs. However, PHM technology has been actively applied in aviation and military, but it is also true that it has never been properly applied due to various limitations in automobile industry. In this study, PHM methodology suitable for commercial vehicle is constructed. In the first step, the type, number, and position of the sensors are selected by applying the optimization technique so that the failure mode can be detected with considering cost reduction. Second, in case of a single vehicle such as aviation or military, PHM could be applied by using only data acquisition. However, in the case of commercial vehicles with several derivative cars, a hybrid model that considers the analytical model and data acquisition was applied to construct a diagnosis and prognostic model. Lastly, until now data driven approach was a way to check the status with the data obtained from the sensor and to report the remaining useful life when it continued. In advanced, in the vehicle, a dynamic model should be used to take into account external environment. And the SOFT SENSOR methodology that can catch the state of a specific weak point by using the detailed analysis model of NVH, thermal, and strength has been constructed.

scholarly journals Financial Statement Analysis of Ashok Leyland Limited, India

2016 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Harshadeep Chilukuri ◽  
Stephy Thankam Varghese
Keyword(s):  
Automobile Industry ◽  
Commercial Vehicle ◽  
Financial Statement ◽  
Commercial Vehicles ◽  
Lower Growth ◽  
Light Commercial Vehicle ◽  
The World ◽  
The Government ◽  
Two Wheeler ◽  
Near Future

<p><em>The Indian auto industry is one of the largest in the world. The industry accounts for 7.1 per cent of the country's Gross Domestic Product (GDP). As of Financial Year 2014-2015, around 31 per cent of small cars sold globally were manufactured in India. The Two Wheelers segment with 81 per cent market share is the leader of the Indian Automobile market owing to a growing middle class and a young population.</em></p><p><em>               </em><em>     Moreover, the growing interest of the companies in exploring the rural markets further aided the growth of the sector. India is also a prominent auto exporter and has strong export growth expectations for the near future. In April-January 2016, exports of Commercial Vehicles registered a growth of 18.36 per cent over April-January 2015. In addition, several initiatives by the Government of India and the major automobile players in the Indian market were expected to make India a leader in the Two Wheeler (2W) and Four Wheeler (4W) market in the world by 2020.</em></p><p><em> </em><em>India’s second largest commercial vehicle maker Ashok Leyland has shown a declining trend in the total sales during August 2016 by 6 per cent due to lower growth in Medium and Heavy Vehicle segment. The company sold ten thousand eight hundred and ninety-seven (10,897) vehicles in the month gone by, compared with 11,544 units sold in the same month last year. Medium &amp; Heavy commercial vehicle sales during the month declined 8 percent to 8201 units while light commercial vehicle sales grew by 2 percent to 2696 units on yearly basis. The contribution of Ashok Leyland in the growth of the automobile industry is very high. Hence an attempt is made to analyse the financial statement of <strong>Ashok Leyland.</strong></em></p><em><strong></strong></em>

scholarly journals Corporate Financial Distress: Analysis of Indian Automobile Industry

2017 ◽  
Vol 8 (1) ◽  
pp. 85
Author(s):  
N. C. Shilpa ◽  
M. Amulya
Keyword(s):  
Automobile Industry ◽  
Financial Distress ◽  
Commercial Vehicle ◽  
Financial Health ◽  
Z Score ◽  
Commercial Vehicles ◽  
Financial Strength ◽  
Systemic Impact ◽  
External Stakeholders ◽  
Score Model

Financial distress leads to bankruptcy of firm which features systemic impact on both macro and micro economy of the country. Industry characteristics too play an important role in endurance of firm and successively with its financial strategies. Compulsion to evaluate the financial strength of firm is a significant aspect for both Internal and External stakeholders, especially creditors. Information that firm is approaching distress can set out managerial actions to anticipate problems before they occur. Drastic changes in automobile policies in India have mixed effects on Automobile Industry. This paper is an attempt to evaluate the financial health of automobile industry in India. Automobile industry has been classified into four categories based on products namely Passenger car, commercial vehicles, motorcycle/ mopeds and scooters &amp; 3-wheelers manufacturers. The Altman Z score model developed for manufacturing firms has been applied for ten years (2007 to 2016) during which period features Automotive Mission Plan framed by Government of India. The study reveals that commercial vehicle manufactures are in intermediate area of financial distress and calls for agile action.

Research on commercial vehicle sound quality objective evaluation

2021 ◽  
Vol 263 (2) ◽  
pp. 4526-4531
Author(s):  
Kun Qian ◽  
Zhichao Hou ◽  
Ruixue Liu ◽  
Dengke Sun ◽  
Rongkang Luo
Keyword(s):  
Evaluation Method ◽  
Commercial Vehicle ◽  
Objective Evaluation ◽  
Sound Quality ◽  
Subjective Perception ◽  
Commercial Vehicles ◽  
Comfort Evaluation ◽  
Quality Design ◽  
Increasing Demand ◽  
And Control

With the increasing demand of users for the acoustical comfort of commercial vehicles, the sound quality has become one of the important indicators of comfort evaluation. The research focuses on the objective evaluation method of the subjective perception of the sound quality in commercial vehicle. The interior noises of commercial vehicle with an inline six diesel engine are measured. The five psychoacoustic parameters (loudness, roughness, sharpness, fluctuation strength, tonality and articulation index) are applied to the evaluation and analysis of the interior noises of the commercial vehicle. Using psychoacoustic parameters to evaluate the noises in commercial vehicle, it is of great significance for the analysis and control of the noises in commercial vehicle. The research results provide a theoretical basis for guiding the sound quality design and development of commercial vehicles.

Development of a Pedestrian Collision Warning System Integrated Into Windscreen Pillars

2018 ◽  
Author(s):  
D. V. Zeziulin ◽  
D. Y. Tyugin ◽  
A. V. Tumasov ◽  
A. M. Groshev ◽  
D. M. Porubov
Keyword(s):  
Commercial Vehicle ◽  
Warning System ◽  
Recognition System ◽  
Traffic Situation ◽  
Structural Elements ◽  
Commercial Vehicles ◽  
Warning Signals ◽  
Collision Warning ◽  
Video Cameras ◽  
Experimental Researches

In Russia, 36% [1] of all accidents are a collision with a pedestrian. Vehicle structural elements limit visibility to drivers and do not allow fully assessing the traffic situation, forming blind zones. It especially applies to commercial vehicles with large dimensions. The system allowing to expand visibility of the car due to use of displays in windscreen pillars is presented in this article. It is proposed to use the pedestrian recognition system integrated into the windscreen pillars based on neural networks. The system allows to detect and estimate distance to the objects and to give warning signals about possible collision. It consists of an on-board computer, video cameras and output devices. Interior elements of a commercial vehicle were developed and installed. External side mirrors were replaced with video cameras. The exterior elements were designed and installed. Further there were carried out experimental researches of the system.

The Design of Monitoring System in Large Hydraulic Press Aiming at the Precise Closed-Loop Control

2014 ◽  
Vol 989-994 ◽  
pp. 3062-3069
Author(s):  
Heng Du ◽  
Bin Huang ◽  
Lin Wang ◽  
Shu Mei Chen
Keyword(s):  
Data Acquisition ◽  
Monitoring System ◽  
High Speed ◽  
Closed Loop ◽  
Hydraulic Press ◽  
Signal Acquisition ◽  
Closed Loop Control ◽  
Repeated Testing ◽  
Loop Control ◽  
The Status

In the research and development of the precise closed-loop control system in large hydraulic press, the touch screen and PLC are frequently applied to design, debug and test for the system. Though a better closed-loop control characteristic can be acquired after repeated testing by this way, the comprehensive state data of hydraulic press are unable to get, which leads to a long research cycle and also restricts the maintenance and upgrade with the equipment in the later period. In order to obtain the whole state information of hydraulic press easily and effectively, a monitor system of precise closed-loop control in large hydraulic press is designed. Based on reasonable cooperation of sensors and high-speed data-acquisition card, high-speed and precise signal acquisition is realized. In addition, data-acquisition software program is designed base on LabVIEW, it can achieve the functions of collecting, storing, displaying and analyzing data. Through the real measuring and analyzing on a certain large ceramic hydraulic press, the status of key parameters can be acquired effectively during the whole pressing process. So the monitoring system supplies the significant data basis to the precise closed-loop control, accelerates the design and development of high characteristic precise closed-loop control and also strongly supports to the maintenance and upgrade with the equipments in the later period.

Urban Commercial Vehicle Movement Model for Calgary, Alberta, Canada

2005 ◽  
Vol 1921 (1) ◽  
pp. 1-10 ◽  
Author(s):  
K. J. Stefan ◽  
J. D. P. McMillan ◽  
J. D. Hunt
Keyword(s):  
Monte Carlo ◽  
Commercial Vehicle ◽  
Industrial Area ◽  
Commercial Vehicles ◽  
Movement Model ◽  
Agent Based ◽  
Monte Carlo Techniques ◽  
Vehicle Type ◽  
Vehicle Movement

Commercial vehicle movements compose perhaps 15% of all urban vehicle trips and produce large impacts in key areas, such as congestion, emissions, road wear, and industrial area traffic. A system for modeling such movements was developed for Calgary, Alberta, Canada. It is a novel application of an agent-based microsimulation framework that uses a tour-based approach and emphasizes important elements of urban commercial movement, including the role of service delivery, light commercial vehicles, and trip chaining. The microsimulation uses Monte Carlo techniques to assign tour purpose, vehicle type, next-stop purpose, next-stop location, and next-stop duration. Tours are “grown” with a return-to-establishment alternative within the next-stop purpose allocation, which is consistent with the nature of tour making in urban commercial movements. The Monte Carlo probabilities are established with the use of a series of logit models, with coefficients estimated on the basis of observed behavior of different commercial movement segments. The estimation results in themselves provide insights into the revealed behavior that have not been available previously.

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