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Title Semi-active suspension control : improved vehicle ride and road friendliness / Emanuele Guglielmino [and others]
Published London : Springer, [2008]
©2008
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Description 1 online resource (xvi, 294 pages) : illustrations
Contents 1.2 Historical Notes on Suspensions -- 1.3 Active and Semi-active Suspensions in the Scientific Literature -- 1.4 Comfort in a Vehicle -- 1.4.1 Comfort Assessment -- 1.5 Introduction to Controlled Dampers -- 1.6 Introduction to Friction Dampers -- 1.7 Introduction to MR Dampers -- 2 Dampers and Vehicle Modelling -- 2.1 Introduction -- 2.2 Phenomenology of Hysteresis -- 2.3 Damper Hysteresis Modelling -- 2.3.1 Bouc-Wen Model -- 2.4 Bouc-Wen Parameter Identification -- 2.5 Vehicle Ride Models -- 2.6 Tyre Modelling -- 2.7 Road Modelling -- 3 Human Body Analysis -- 3.1 Introduction -- 3.2 Human Body Response -- 3.3 Hysteretic Damping -- 3.3.1 The Duffing Equation -- 3.3.2 Suppression of Jumps -- 3.4 Low-frequency Seated Human Model -- 3.4.1 Multi-frequency Input -- 3.5 Semi-active Control -- 3.6 State Observer -- 3.6.1 Luenberger State Observer -- 3.6.2 Simple State Observer -- 3.6.3 Ideal Control -- 3.7 Results -- 3.8 Seated Human with Head-and-Neck Complex -- 3.8.1 Driver Seat (Including Cushions) -- 3.8.2 Driver Body -- 3.8.3 Head-and-Neck Complex (HNC) -- 3.8.4 Analysis of the Head-and-Neck System -- 3.8.5 Head Accelerations During Avoidance Manoeuvre -- 4 Semi-active Control Algorithms -- 4.1 Introduction -- 4.2 PID Controllers -- 4.3 Adaptive Control -- 4.4 Robust Control -- 4.5 Balance, Skyhook and Groundhook -- 4.5.1 Balance Logic -- 4.5.2 Skyhook Logic -- 4.5.3 Groundhook Logic -- 4.5.4 Displacement-based On-Off Groundhook Logic -- 4.5.5 Hybrid Skyhook-Groundhook Logic -- 4.6 Balance Logic Analysis -- 4.7 Chattering Reduction Strategies -- 4.8 SA Vibration Control of a 1DOF System with Sequential Dry Friction -- 4.8.1 Sequential Damping Characteristics -- 4.8.2 Free Vibration: Phase Plane Trajectories -- 4.8.3 Free Vibration: Shock Absorbing Properties -- 4.8.4 Harmonically-Excited Vibration -- 4.8.5 Random Vibration -- 4.9 Stability of SA Control with Sequential Dry Friction -- 4.10 Quarter Car Response with Sequential Dry Friction -- 5 Friction Dampers -- 5.1 Introduction -- 5.2 Friction Force Modelling -- 5.2.1 Static Friction Models -- 5.2.2 Dynamic Friction Models -- 5.2.3 Seven-parameter Friction Model -- 5.3 The Damper Electrohydraulic Drive -- 5.4 Friction Damper Hydraulic Drive Modelling -- 5.4.1 Power Consumption -- 5.4.2 The Feedback Chain -- 5.5 Pilot Implementation of Friction Damper Control -- 5.6 Automotive Friction Damper Design -- 5.7 Switched State Feedback Control -- 5.8 Preliminary Simulation Results -- 5.9 Friction Damper Electrohydraulic Drive Assessment -- 5.10 Electrohydraulic Drive Parameters Validation -- 5.11 Performance Enhancement of the Friction Damper System -- 5.11.1 Damper Design Modification -- 5.11.2 Hydraulic Drive Optimisation -- 5.11.3 Friction Damper Controller Enhancement -- 6 Magnetorheological Dampers -- 6.1 Introduction -- 6.2 Magnetorheological Fluids -- 6.3 MR Fluid Devices -- 6.3.1 Basic Operating Modes -- 6.3.2 Flow Simulation -- 6.4 MR Damper Design -- 6.4.1 Input Data and Choice of the Design Solution -- 6.4.2 Selection of the Working MR Fluid -- 6.4.3 Determination of the Optimal Gap Size and Hydraulic Design -- 6.4.4 Magnetic Circuit Design
Summary Semi-active Suspension Control provides an overview of vehicle ride control employing smart semi-active damping systems (controlled dissipative elements which only require low energy input). These systems are able to tune the amount of damping in response to measured vehicle-ride and handling indicators. Two physically different dampers (magnetorheological and controlled-friction) are analysed from the perspectives of mechatronics and control. Ride comfort, road holding, road damage and human-body modelling (nonlinear visceral response in particular) are studied. A multidisciplinary approach is adopted throughout the book. Sound mathematical modelling is balanced by a large and detailed section on experimental implementation, where a variety of automotive applications are described offering a well-rounded view of the application of such systems. The implementation of control algorithms with regard to real-life engineering constraints is emphasised. The applications described include semi-active suspensions for a saloon car, seat suspensions for vehicles not equipped with a primary suspension, and control of heavy-vehicle dynamic-tyre loads to reduce road damage and improve handling. Engineers and practitioners working in noise and vibration; automotive engineers working in vehicle design, research and development; biomechanical engineers, physicists and life-scientists interested in human-body responses to vibration; and graduate students in vehicle studies, mechanics of vibration, dynamics and control will find this book of material assistance in their work
Bibliography Includes bibliographical references (pages 271-287) and index
Notes Print version record
Subject Active automotive suspensions.
Damping (Mechanics) -- Mathematical models.
Form Electronic book
Author Guglielmino, Emanuele.
LC no. 2008927606
ISBN 1848002300 (hbk.)
1848002319
9781848002302 (hbk.)
9781848002319