Effects Of Abs Controller Parameters On Heavy Truck Model Braking Performance

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Effects of ABS Controller Parameters on Heavy Truck Model Braking Performance

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Author : Matthew Leonard Shurtz
Publisher :
ISBN 13 :
Total Pages : 394 pages
Book Rating : 4.:/5 (712 download)

Book Synopsis Effects of ABS Controller Parameters on Heavy Truck Model Braking Performance by : Matthew Leonard Shurtz

Download or read book Effects of ABS Controller Parameters on Heavy Truck Model Braking Performance written by Matthew Leonard Shurtz and published by . This book was released on 2006 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The National Highway Traffic Safety Administration (NHTSA) aims to keep America's roadways safe for vehicle operators, passengers, and pedestrians; a key component to this mission is the element of crash avoidance. Because so many injury related accidents involve heavy trucks, that sector is of significant concern. Most heavy truck braking accidents result from a failure to control under extreme braking maneuvers. One component which has aided this problem is the implementation of anti-lock braking systems (ABS) into these vehicles. In order to study the ABS braking behavior of these vehicles, models were created to accurately simulate their braking behaviors, by using the vehicle dynamics software package TruckSim along with Simulink, which was used to create brake and ABS controller models. These models were run in parallel to create a full vehicle simulation. A model of a 6x4 Peterbilt straight truck was completed in 2004, which used this same modeling scheme. An ABS controller model was developed that accurately mimicked the behavior of the Peterbilt's ABS system, verified through experimental data. This model was upgraded in this study to include better modeling of brake treadle and chamber pressures and also to include the capability of modeling other ABS configurations. The previous ABS model simulated a 6s6m system, in which the wheel speeds of all six wheels were monitored and the brakes of each wheel could be modulated independently. Through modifications to the model in this study, 4s4m and 4s3m ABS configurations can now be studied. The new Peterbilt model was then verified by comparison to experimental data, and was found to accurately model the response of the Peterbilt for each ABS configuration. The ABS controller model was then manipulated to be used for the simulation of a tractor-trailer combination vehicle. Again, TruckSim models were created for a 4x2 Sterling tractor and a 48 ft, 2-axle van trailer. Also, an individual ABS controller model was created for each by matching the simulated response of the vehicle to experimentally determined results. In addition, the ABS controller model of the trailer included the capability of simulating 4s4m, 4s2m, and 2slm ABS systems. Through this process, a tractor-trailer model was completed so that the effects of various ABS controller parameters and ABS configurations could be studied for the vehicle. A total of five different ABS systems were created for the trailer model. The first of those was a 2s 1 m system, which was created to simulate an experimentally studied trailer ABS system. This 2slm system was then used to create a 4s2m and a 4s4m system that had the exact same controller parameters. Two additional 2slm systems were created, one of which was designed to perform poorly in straight-ahead braking situations and the other was designed to perform poorly in brake-in-curve situations. More details of these models will be given later in this report. Straight-ahead braking and brake-in-curve simulations were conducted to study the longitudinal and lateral effectiveness of the tractor-trailer equipped with these five different ABS systems. It was found that upgrading to a 4s2m or 4s4m ABS system resulted in no discernable difference in longitudinal braking performance. Also, it was shown that a very aggressive trailer ABS system (allows a very low amount of slip to develop in the tires) will perform poorly in longitudinal braking situations but will perform very well in lateral tests. The opposite is true for an ABS system that is very lax, in that the controller allows a great deal of wheel slip (approaching lock-up). Finally, it was discovered that the optimum ABS controller system for lateral braking performance will include select-low logic.

Development of Heavy Truck ABS and Limit Maneuvers Model

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Author : Brian Christopher Zaugg
Publisher :
ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (574 download)

Book Synopsis Development of Heavy Truck ABS and Limit Maneuvers Model by : Brian Christopher Zaugg

Download or read book Development of Heavy Truck ABS and Limit Maneuvers Model written by Brian Christopher Zaugg and published by . This book was released on 2004 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Simulink heavy truck ABS model was based off of a previously developed NHTSA ABS model, and this research focused on the development of a new ABS controller model. The previous ABS controller model based modulation logic on user specified test conditions and provided no brake chamber stepping pressure builds, which are common to ABS operation. In addition it required the true vehicle speed and surface friction level, which are parameters not received by the actual ABS controller. The new ABS controller model uses only the inputs received by the physical ABS controller and simulates much of the physical controller behavior. The new controller model estimates the vehicle speed from the wheel encoders, estimates the surface friction level, selects wheel tangential acceleration and slip ratio threshold levels to derive modulation logic, and provides brake chamber stepping pressure builds. The new ABS model was found to accurately model the field test vehicle behavior under low-μ runs, including the wet Jennite straight ahead braking and brake-in- curve maneuvers. The model accurately reproduced vehicle speed, brake chamber pressure, wheel tangential acceleration, and slip ratios. The model also provided moderately accurate simulations of the field test high-μ stops. These simulations differed in vehicle speed and did not fully replicate the high frequency behavior of the field tests, yet closely modeled the brake chamber pressures. The inaccuracy is believed to be due to the higher order dynamics not represented in the vehicle model, inaccurate steer axle brake torque coefficients, and the necessity of an improved tire model. Additional suggested studies are discussed in the final section of this report.

A Report on Various Aspects of the Braking Performance of Medium and Heavy Trucks. Prepared in Response to Senate Report 102-148 to Accompany H.R. 2942; Department of Transportation and Related Agencies Appropriations Bill, 1992. Final Report

Download A Report on Various Aspects of the Braking Performance of Medium and Heavy Trucks. Prepared in Response to Senate Report 102-148 to Accompany H.R. 2942; Department of Transportation and Related Agencies Appropriations Bill, 1992. Final Report PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis A Report on Various Aspects of the Braking Performance of Medium and Heavy Trucks. Prepared in Response to Senate Report 102-148 to Accompany H.R. 2942; Department of Transportation and Related Agencies Appropriations Bill, 1992. Final Report by :

Download or read book A Report on Various Aspects of the Braking Performance of Medium and Heavy Trucks. Prepared in Response to Senate Report 102-148 to Accompany H.R. 2942; Department of Transportation and Related Agencies Appropriations Bill, 1992. Final Report written by and published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reducing Braking Distance by Control of Semi-Active Suspension

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Author : Tobias Niemz
Publisher : diplom.de
ISBN 13 : 3836630036
Total Pages : 184 pages
Book Rating : 4.8/5 (366 download)

Book Synopsis Reducing Braking Distance by Control of Semi-Active Suspension by : Tobias Niemz

Download or read book Reducing Braking Distance by Control of Semi-Active Suspension written by Tobias Niemz and published by diplom.de. This book was released on 2014-04-11 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Abstract: This thesis presents a control algorithm for semi-active suspensions to reduce the braking distance of passenger cars. Active shock absorbers are controlled and used to influence the vertical dynamics during ABS-controlled full braking. In today s series cars the active shock absorbers are switched to a passive damping - usually hard damping - during ABS-braking. Several approaches to reduce oscillations of vertical dynamic tire forces are known, implemented and some of them tested in non-braking situations (refer to Yi, Valà ek, and Nouillant). The approach presented in this paper goes a step further by connecting the vertical with the longitudinal dynamics. To influence the vertical dynamics a switching control logic, called MiniMax-controller, is used. It is named after the fact that it changes only from soft to hard damping and vice versa. A control quantity was identified that connects the vertical dynamics with the longitudinal dynamics: the integral of dynamic wheel load. The control algorithm is implemented in a compact class passenger car. Simulations with a quarter-car model have been undertaken as well as tests on a 4-post-test rig, driving tests with defined excitations (like defined obstacles), and test drives on a real road, using a braking machine for reproducibility reasons. It could be shown that it is possible to reduce the braking distance by affecting on the vertical dynamics of a passenger car in general. The amount of reduction depends on the elevation profile of the chosen testing track and on the initial velocity. On a road with an unevenness comparable to the one that is found on a typical German Autobahn, a reduction of typically 1-2%, compared to the best passive damping, was achieved. Inhaltsverzeichnis:Table of Contents: List of Abbreviationsix List of Symbols and Indicesx Abstractxv 1.Introduction1 1.1Classification of Suspension Systems1 1.2State of the Art3 1.3Research Objectives11 1.4Methodology12 2.Fundamentals of Vehicle Dynamics14 2.1Coordinate Systems14 2.2The Braking Process16 2.2.1The Quality of a Braking Process23 2.2.2Parameters that Influence the Braking Distance24 2.3Possibilities to Influence the Braking Force26 2.3.1Influence via Braking Torque-ABS30 2.3.2Influence via Wheel Load-Active Shock Absorbers34 2.4Conclusions35 3.Tools and Research Environment36 3.1Active Shock-Absorbers36 3.2Testing Vehicle38 3.2.1Testing Vehicle [...]

Active Braking Control Systems Design for Vehicles

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Author : Sergio M. Savaresi
Publisher : Springer Science & Business Media
ISBN 13 : 1849963509
Total Pages : 269 pages
Book Rating : 4.8/5 (499 download)

Book Synopsis Active Braking Control Systems Design for Vehicles by : Sergio M. Savaresi

Download or read book Active Braking Control Systems Design for Vehicles written by Sergio M. Savaresi and published by Springer Science & Business Media. This book was released on 2010-09-24 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Braking Control Design for Road Vehicles focuses on two main brake system technologies: hydraulically-activated brakes with on–off dynamics and electromechanical brakes, tailored to brake-by-wire control. The physical differences of such actuators enjoin the use of different control schemes so as to be able fully to exploit their characteristics. The authors show how these different control approaches are complementary, each having specific peculiarities in terms of either performance or of the structural properties of the closed-loop system. They also consider other problems related to the design of braking control systems, namely: • longitudinal vehicle speed estimation and its relationship with braking control system design; • tire–road friction estimation; • direct estimation of tire–road contact forces via in-tire sensors, providing a treatment of active vehicle braking control from a wider perspective linked to both advanced academic research and industrial reality.

NHTSA Heavy Duty Vehicle Brake Research Program - Report 2: the Effect of Adjustment on Air Brake Performance. Interim Report

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Author : Richard W. Radlinski
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis NHTSA Heavy Duty Vehicle Brake Research Program - Report 2: the Effect of Adjustment on Air Brake Performance. Interim Report by : Richard W. Radlinski

Download or read book NHTSA Heavy Duty Vehicle Brake Research Program - Report 2: the Effect of Adjustment on Air Brake Performance. Interim Report written by Richard W. Radlinski and published by . This book was released on 1985 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NHTSA Heavy Duty Brake Research Program Report No. 1 - Stopping Capability of Air Brakes Vehicles. Volume 1 - Technical Report. Interim Report

Download NHTSA Heavy Duty Brake Research Program Report No. 1 - Stopping Capability of Air Brakes Vehicles. Volume 1 - Technical Report. Interim Report PDF Online Free

Author : Richard W. Radlinski
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis NHTSA Heavy Duty Brake Research Program Report No. 1 - Stopping Capability of Air Brakes Vehicles. Volume 1 - Technical Report. Interim Report by : Richard W. Radlinski

Download or read book NHTSA Heavy Duty Brake Research Program Report No. 1 - Stopping Capability of Air Brakes Vehicles. Volume 1 - Technical Report. Interim Report written by Richard W. Radlinski and published by . This book was released on 1985 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Integrated Vehicle Dynamics and Control

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Author : Wuwei Chen
Publisher : John Wiley & Sons
ISBN 13 : 1118380029
Total Pages : 528 pages
Book Rating : 4.1/5 (183 download)

Book Synopsis Integrated Vehicle Dynamics and Control by : Wuwei Chen

Download or read book Integrated Vehicle Dynamics and Control written by Wuwei Chen and published by John Wiley & Sons. This book was released on 2016-03-31 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of integrated vehicle system dynamics exploring the fundamentals and new and emerging developments This book provides a comprehensive coverage of vehicle system dynamics and control, particularly in the area of integrated vehicle dynamics control. The book consists of two parts, (1) development of individual vehicle system dynamic model and control methodology; and (2) development of integrated vehicle dynamic model and control methodology. The first part focuses on investigating vehicle system dynamics and control according to the three directions of vehicle motions, including longitudinal, vertical, and lateral. Corresponding individual control systems, e.g. Anti-lock Brake System (ABS), Active Suspension, Electric Power Steering System (EPS), are introduced and developed respectively. Particular attention is paid in the second part of the book to develop integrated vehicle dynamic control system. Integrated vehicle dynamics control system is an advanced system that coordinates all the chassis control systems and components to improve the overall vehicle performance including safety, comfort, and economy. Integrated vehicle dynamics control has been an important research topic in the area of vehicle dynamics and control over the past two decades. The research topic on integrated vehicle dynamics control is investigated comprehensively and intensively in the book through both theoretical analysis and experimental study. In this part, two types of control architectures, i.e. centralized and multi-layer, have been developed and compared to demonstrate their advantages and disadvantages. Integrated vehicle dynamics control is a hot topic in automotive research; this is one of the few books to address both theory and practice of integrated systems Comprehensively explores the research area of integrated vehicle dynamics and control through both theoretical analysis and experimental study Addresses a full range of vehicle system topics including tyre dynamics, chassis systems, control architecture, 4 wheel steering system and design of control systems using Linear Matrix Inequality (LMI) Method

Industrial Safety Management

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Author : J Maiti
Publisher : Springer
ISBN 13 : 9811063281
Total Pages : 154 pages
Book Rating : 4.8/5 (11 download)

Book Synopsis Industrial Safety Management by : J Maiti

Download or read book Industrial Safety Management written by J Maiti and published by Springer. This book was released on 2017-10-30 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume focuses on research conducted in the areas of industrial safety. Chapters are extensions of works presented at the International Conference on Management of Ergonomic Design, Industrial Safety and Healthcare Systems. The book addresses issues such as occupational safety, safety by design, safety analytics and safety management. It is a useful resource for students, researchers, industrial professionals and engineers.

Improved Brake Systems for Commercial Motor Vehicles. Final Report. Prepared in Response to Section 9107; P.L. 100-690, Truck and Bus Safety and Regulatory Reform Act of 1988

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Author : Robert M. Clarke
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Improved Brake Systems for Commercial Motor Vehicles. Final Report. Prepared in Response to Section 9107; P.L. 100-690, Truck and Bus Safety and Regulatory Reform Act of 1988 by : Robert M. Clarke

Download or read book Improved Brake Systems for Commercial Motor Vehicles. Final Report. Prepared in Response to Section 9107; P.L. 100-690, Truck and Bus Safety and Regulatory Reform Act of 1988 written by Robert M. Clarke and published by . This book was released on 1991 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Road and Off-Road Vehicle System Dynamics Handbook

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Author : Gianpiero Mastinu
Publisher : CRC Press
ISBN 13 : 0849333229
Total Pages : 1710 pages
Book Rating : 4.8/5 (493 download)

Book Synopsis Road and Off-Road Vehicle System Dynamics Handbook by : Gianpiero Mastinu

Download or read book Road and Off-Road Vehicle System Dynamics Handbook written by Gianpiero Mastinu and published by CRC Press. This book was released on 2014-01-06 with total page 1710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring contributions from leading experts, the Road and Off-Road Vehicle System Dynamics Handbook provides comprehensive, authoritative coverage of all the major issues involved in road vehicle dynamic behavior. While the focus is on automobiles, this book also highlights motorcycles, heavy commercial vehicles, and off-road vehicles. The authors of the individual chapters, both from automotive industry and universities, address basic issues, but also include references to significant papers for further reading. Thus the handbook is devoted both to the beginner, wishing to acquire basic knowledge on a specific topic, and to the experienced engineer or scientist, wishing to have up-to-date information on a particular subject. It can also be used as a textbook for master courses at universities. The handbook begins with a short history of road and off-road vehicle dynamics followed by detailed, state-of-the-art chapters on modeling, analysis and optimization in vehicle system dynamics, vehicle concepts and aerodynamics, pneumatic tires and contact wheel-road/off-road, modeling vehicle subsystems, vehicle dynamics and active safety, man-vehicle interaction, intelligent vehicle systems, and road accident reconstruction and passive safety. Provides extensive coverage of modeling, simulation, and analysis techniques Surveys all vehicle subsystems from a vehicle dynamics point of view Focuses on pneumatic tires and contact wheel-road/off-road Discusses intelligent vehicle systems technologies and active safety Considers safety factors and accident reconstruction procedures Includes chapters written by leading experts from all over the world This text provides an applicable source of information for all people interested in a deeper understanding of road vehicle dynamics and related problems.

Applied Mechanics Reviews

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Author :
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.3/5 (243 download)

Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1994 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Braking of Road Vehicles

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Author : Andrew J. Day
Publisher : Butterworth-Heinemann
ISBN 13 : 0123973384
Total Pages : 487 pages
Book Rating : 4.1/5 (239 download)

Book Synopsis Braking of Road Vehicles by : Andrew J. Day

Download or read book Braking of Road Vehicles written by Andrew J. Day and published by Butterworth-Heinemann. This book was released on 2014-05-21 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from the fundamentals of brakes and braking, Braking of Road Vehicles covers car and commercial vehicle applications and developments from both a theoretical and practical standpoint. Drawing on insights from leading experts from across the automotive industry, experienced industry course leader Andrew Day has developed a new handbook for automotive engineers needing an introduction to or refresh on this complex and critical topic. With coverage broad enough to appeal to general vehicle engineers and detailed enough to inform those with specialist brake interests, Braking of Road Vehicles is a reliable, no-nonsense guide for automotive professionals working within OEMs, suppliers and legislative organizations. Designed to meet the needs of working automotive engineers who require a comprehensive introduction to road vehicle brakes and braking systems. Offers practical, no-nonsense coverage, beginning with the fundamentals and moving on to cover specific technologies, applications and legislative details. Provides all the necessary information for specialists and non-specialists to keep up to date with relevant changes and advances in the area.

Rollover Prevention, Crash Avoidance, Crashworthiness, Ergonomics and Human Factors

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Author :
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.X/5 (4 download)

Book Synopsis Rollover Prevention, Crash Avoidance, Crashworthiness, Ergonomics and Human Factors by :

Download or read book Rollover Prevention, Crash Avoidance, Crashworthiness, Ergonomics and Human Factors written by and published by . This book was released on 2003 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Report on Activities Under the National Traffic and Motor Vehicle Safety Act of 1966 and the Motor Vehicle Information and Cost Savings Act of 1972

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Author :
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.F/5 ( download)

Book Synopsis A Report on Activities Under the National Traffic and Motor Vehicle Safety Act of 1966 and the Motor Vehicle Information and Cost Savings Act of 1972 by :

Download or read book A Report on Activities Under the National Traffic and Motor Vehicle Safety Act of 1966 and the Motor Vehicle Information and Cost Savings Act of 1972 written by and published by . This book was released on with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Vehicle Dynamics and Control

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Author : Shahram Azadi
Publisher : Elsevier
ISBN 13 : 0323856608
Total Pages : 510 pages
Book Rating : 4.3/5 (238 download)

Book Synopsis Vehicle Dynamics and Control by : Shahram Azadi

Download or read book Vehicle Dynamics and Control written by Shahram Azadi and published by Elsevier. This book was released on 2021-03-25 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle Dynamics and Control: Advanced Methodologies features the latest information on advanced dynamics and vehicle motion control, including a comprehensive overview of passenger cars and articulated vehicles, fundamentals, and emerging developments. This book provides a unified, balanced treatment of advanced approaches to vehicle dynamics and control. It proceeds to cover advanced vehicle control strategies, such as identification and estimation, adaptive nonlinear control, new robust control techniques, and soft computing. Other topics, such as the integrated control of passenger cars and articulated heavy vehicles, are also discussed with a significant amount of material on engineering methodology, simulation, modeling, and mathematical verification of the systems. This book discusses and solves new challenges in vehicle dynamics and control problems and helps graduate students in the field of automotive engineering as well as researchers and engineers seeking theoretical/practical design procedures in automotive control systems. Provides a vast spectrum of advanced vehicle dynamics and control systems topics and current research trends Provides an extensive discussion in some advanced topics on commercial vehicles, such as dynamics and control of semitrailer carrying liquid, integrated control system design, path planning and tracking control in the autonomous articulated vehicle

Vehicle Dynamics, Braking, Steering, and Suspensions

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Author :
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.X/5 (4 download)

Book Synopsis Vehicle Dynamics, Braking, Steering, and Suspensions by :

Download or read book Vehicle Dynamics, Braking, Steering, and Suspensions written by and published by . This book was released on 2003 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: