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Magazine

Rehab Device Works with All Joints of Lower Limbs

  • Magazine Article
  • TBMG-33854
Published 2019-02-01 by Tech Briefs Media Group in United States

South Ural State University Chelyabinsk, Russia

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Safety and Comfort for All: An affordable Hill-Hold and Automated Parking Brake System

Schaeffler India-Ramkumar Iyer, Yogesh Awade, Pritesh Doshi, Abhishek Dabhade, Vinod Jadhav
Published 2019-01-09 by SAE International in United States
With an ever-increasing number of vehicles on Indian roads, the safety and ease of driving has become a very important criterion for the customers. In passenger and commercial vehicles, while launching a vehicle on gradient or stop and go traffic in hilly region, the vehicle tends to roll back/forward in the opposite direction of the intended movement. This undesirable movement is also a safety issue, as this may cause collision with the vehicle on the rear or in front. It requires a skilled driver to coordinate between the clutch pedal, brake (also handbrake in some situations) and accelerator pedal to prevent the vehicle from rolling back while handling such situations. It also leads to clutch disc wear and heating as the driver may tend to slip the clutch to prevent the vehicle from rolling back. Hill hold is a driver assist feature which prevents the vehicle roll back/roll forward during launch operation on uphill/downhill conditions. Hill-hold is offered as an add-on feature on most vehicles equipped with Electronic Stability Program (ESP). Hill hold is achieved…
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Fundamentals of Modern Vehicle Transmissions

  • Professional Development
  • PD730419
Published 2018-08-10

Today’s vehicles apply the primary function of a transmission: to couple the engine to the driveline and provide torque ratios between the two. How is this achieved? This on-demand course will familiarize you with the operational theories and functional principles of modern vehicle transmission systems designed to achieve the most efficient engine operation.
Participants will learn about current designs, the components and sub-systems used, their functional modes, how they operate, and interrelationships. An explanation of ratios and how they function within the driveline by using a manual transmission display is provided, followed by a description of the concepts of automatic control and hydro-mechanic decision theory and implementation using automatic transmission design.

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Virtual Functional Testing of a Mechatronic Active Roll Control

QTronic GmbH-Michael Hartmann
Schaeffler Technologies AG & Co. KG-Hua Huang, Hasan Flaih Awad, Dustin Knetsch
Published 2018-04-15 by SAE International in United States
Compared with the traditional bench testing approach, the virtual validation on a PC is more time-saving and cost-effective. However, the control software of an electronic control unit is typically developed together with suppliers and original equipment manufacturer, and each owns parts of the source code. So it is impossible to set up a simulation based on the original C code. Alternatively, to set up an equivalent model is usually time-consuming and less effective. In this work, Schaeffler describes how to develop a virtual testing method based on chip simulation for the series produced mechatronic active roll control system.
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Adaptive Cascade Optimum Braking Control Based on a Novel Mechatronic Booster

Tongji University-Wei Han, Lu Xiong, Zhuoping Yu, Haocheng Li
Published 2017-09-17 by SAE International in United States
BBW (Brake-by-wire) can increase the electric and hybrid vehicles performance and safety. This paper proposes a novel mechatronic booster system, which includes APS (active power source), PFE (pedal feel emulator), ECU (electronic control unit). The system is easily disturbed when the system parameters and the outside conditions change. The system performance is weakened. The cascade control technique can be used to solve the problem. This paper develops an adaptive cascade optimum control (ACOC) algorithm based on the novel mechatronic booster system. The system is divided into main loop and servo loop, both of them are closed-loop system. The servo-loop system can eliminate the disturbance which exists in the servo loop. So the robustness of the cascade control system is improved than which of the general closed-loop control system. Different control object is respectively chosen. The control-oriented mathematical model is designed. Based on the control-oriented model, optimum control algorithm(LQR) is used to design the servo-loop controller for optimum error and rapid response. To eliminate the system uncertainty and control the hydraulic pressure accurately, adaptive control algorithm,…
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SUPPLIER EYE

Automotive Engineering: April 2017

Michael Robinet
  • Magazine Article
  • 17AUTP04_10
Published 2017-04-01 by SAE International in United States

The new Supplier Invasion

Significant changes are underway within the North American light vehicle supply infrastructure. Beyond the slow though steady shift of value and resources from ‘hard parts’ towards the softer side (electronics/mechatronics) of system supply, as well as the pressures impacting smaller, more regional suppliers there are other critical changes underway. Chief among these are the geographic and system expansion of the supply base into new directions.

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Use of V-Cycle Methodology to Develop Mechatronic Fuel System Functions

Inergy Automotive Systems LLC-David Hill, Paul Reuther
Plastic Omnium Advanced Innovation-Mihai Baja, Issam Djemili, Iris Sutra
Published 2017-03-28 by SAE International in United States
As electronics make their way into the fuel system, a shift in problem solving can be seen. Previously high risk items were tackled mainly through proving component durability and decreasing the statistical odds of the problem occurring. With an electronically controlled system however it is possible and necessary to define degraded modes, in the event that certain components fail, in order to provide at least a limited functionality for the customer. This paper will discuss some different use cases, and how embedded software can be used to improve functionality over a passive system.
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Mechatronics Based Accident Alarming System with Automatic Roadblock Prevention System

Professor,Dept. of Mechanical Engg,MVIT-Balakumar Gardampaali
Student, Dept of Mechanical Engg, RMIT-Aayoush Sharma
Published 2017-03-28 by SAE International in United States
In any unlikely event of accidents or vehicle breakdown, there is accumulation of traffic which results in road-blockage and causes in convenience to other vehicles. If this happens in remote areas, the accidents victims are left unattended and there is delay in providing emergency services. In case of traffic, it obstructs the entry of ambulance and rescue team which results in death of passengers. To prevent this mishap, a mechatronics based road block avoidance and accident alarming system is designed which is automated by the use of sensors. The road-block is detected with the help sensors located at regular intervals on road. This input is given to a Local Control Unit (LCU) which is integrated on every road. Several such LCUs are connected to a Main Control Unit (MCU) which is located at the nearest police station. A single MCU covers the area administered by that police station. Additional CCTV cameras are present to give graphical view of accident. The MCU alerts the Traffic department, nearest Hospital and currently running ambulances for initiation of emergency…
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Farewell to the Clutch Pedal

Schaeffler Group-Saravanan Lakshminarayanan, Pritesh Ashok Doshi, Markus Kneissler, Dheeraj Kapur, Aditya Divekar
Published 2017-01-10 by SAE International in United States
Manual transmissions play a dominant role in India with a market share of more than 90%. Any technology that improves their fuel consumption and their comfort for end users is highly welcome if it is affordable regarding “value for money”. Schaeffler offers a technology to meet these challenges with the concept of Electronic Clutch Management (ECM). By implementing an intelligent mechatronic clutch actuator with specific, integrated sensors directly inside the actuator, this development prepares the ground for a new era that says farewell to the clutch pedal and achieves the target of using a 2-pedal system.
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SAE SKILL INDIA INITIATIVE: S2I2

MOBILITY ENGINEERING: Sept 2016

  • Magazine Article
  • 16MEIP09_02
Published 2016-09-01 by SAE International in United States

A new SAEINDIA collaboration aims to help young engineers acquire “industry-ready” skills

The Indian auto industry is the third-largest in the world and is poised to become first in small vehicles and engines by 2022. In accordance, several initiatives have been undertaken by the government of India and major automotive industries to make the country a leader in the vehicle market.

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