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An investigation of multibody system modelling and\ud control analysis techniques for the development of\ud advanced suspension systems in passenger cars

By Ann Susan Cherry

Abstract

The subject of this thesis is the investigation of multibody system modelling\ud and control analysis techniques for the development of advanced suspension\ud systems in passenger cars. A review of the application of automatic control to\ud all areas of automotive vehicles illustrated the important factors in such\ud developments, including motivating influences, constraints and methodologies\ud used. A further review of specific applications for advanced suspension systems\ud highlighted a major discrepancy between the significant claims of theoretical\ud performance benefits and the scarcity of successful practical implementations.\ud This discrepancy was the result of idealistic analytical studies producing\ud unrealistic solutions with little regard for practical constraints. The\ud predominant application of prototype testing methods in implementation studies\ud also resulted in reduced potential performance improvements.\ud This work addressed this gap by the application of realistic modelling and\ud control design techniques to practical realistic suspension systems. Multibody\ud system modelling techniques were used to develop vehicle models incorporating\ud realistic representations of the suspension system itself, with the ability to\ud include models of the controllers, and facilitate control analysis tasks. These\ud models were first used to address ride control for fully active suspension\ud systems. Both state space techniques, including linear quadratic regulator and\ud pole placement and frequency domain design methods were applied. For the\ud multivariable frequency domain study, dyadic expansion techniques were used\ud to decouple the system into single input single output systems representing\ud each of the sprung mass modes. Both discretely and continuously variable\ud damping systems were then addressed with a range of control strategies,\ud including analytical solutions based on the active results and heuristic rule-based\ud approaches. The controllers based on active solutions were reduced to\ud satisfy realistic practical limitations of the achievable damping force. The\ud heuristic techniques included standard rule-based controllers using Boolean\ud logic for the discretely variable case, and fuzzy logic controllers for the\ud continuously variable case

Topics: TL
OAI identifier: oai:wrap.warwick.ac.uk:3850

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Citations

  1. (1992). 344 An Investigation of Multibody System ModeHing and Control Analysis Techniques for the Development of Advanced Suspension Systems in Passenger Cars in Two Volumes Volume 2 by Ann Susan Cherry A thesis submitted for the degree of
  2. (1986). 61 Automotive Handbook, Published by Robert Bosch GmbH, doi
  3. (1992). A Comparison Between Fuzzy, doi
  4. A Control Engineering Review of Fuzzy Systems",
  5. (1977). A Fuzzy Logic Controller for a Traffic Junction",
  6. (1988). A Low-Power Active Suspension and its Bounds and Cross Model Performance",
  7. (1991). A Nonlinear Engine Model for Drivetrain System Development",
  8. (1988). A Practical Control Concept for Passenger Car Active Suspensions with Preview", doi
  9. (1988). A Practical Intelligent Damping System",
  10. (1989). A Study on Active Controlled Chassis System for Vehicle Dynamics",
  11. Active Controls in Ground Transportation -A Review of the State-of-the-Art and Future Potential", Vehicle System Dynamics, doi
  12. (1989). Active Four-Wheel-Steering System by Model Following Control" doi
  13. Adaptive Suspension Concepts for Road Vehicles", doi
  14. (1987). Advanced Continuous Simulation Language. Reference Manual, Mitchell and Gauthier Associates,
  15. (1988). Advanced Suspensions,
  16. An Experiment in Linguistic Synthesis with a Fuzzy Logic Controller", doi
  17. (1991). An Experimental Investigation into the Use of Semi-Active doi
  18. (1988). An Experimental Study of Optimal Vibration Adjustment Using Adaptive Control Methods",
  19. An Introductory Survey of Fuzzy Control",
  20. Antiskid System for Passenger Cars with a Digital Electronic Control Unit", doi
  21. (1976). Application of a Fuzzy Controller in a Warm Water Plant", doi
  22. (1992). Application of Fuzzy Logic to the Idle Speed Control of a Petrol Engine", VW Fuzzy Logic Meeting, doi
  23. (1991). Application of Multibody System (NIBS) Techniques to Automotive Vehicle Chassis Simulation for Motion Control Studies", doi
  24. (1991). Application of Multibody Systems Techniques to Vehicle Modelling", doi
  25. (1988). Application of the LQG Approach to Design of an Automotive Suspension for Three-Dimensional Vehicle Models",
  26. (1981). Automatic Temperature Control Systems for Car Heating and Air Conditioning Systems", IMech. E,
  27. Automobile Applications of Modern Control Theory",
  28. Characteristics of the Four-Wheel Steering Vehicle and its Future Prospects",
  29. (1992). Comparison of Fuzzy Control with Conventional Controls During Braking", VW Fuzzy Logic Meeting,
  30. (1992). Composite Active Suspension for Automotive Vehicles", doi
  31. Control System Architecture, for an Advanced Electric Powertrain", doi
  32. (1986). Control System Toolbox: User's Guide, The Mathworks Inc.,
  33. (1981). Control Systems for Automotive Vehicle Fuel Economy :A Literature Review", doi
  34. (1985). Decoupled Active Suspension Design for Improved Automotive Ride Quality/Handling Performance", 9" IAVSD Symposium, doi
  35. (1985). Design of an Active Suspension for a Passenger Vehicle Model Using Input Processes with Time Delays", doi
  36. Development of a Computer Controlled Suspension System",
  37. (1981). Digital Steering Control for Automobiles With Applications for Disabled Drivers", IMech. E,
  38. (1989). Dynamic Constraint Equations and Their Impact on Active Suspension Performance", 11" IAVSD Symposium,
  39. (1991). Dynamic Levelling a Low Power Active Suspension With Adaptive Control",
  40. Electric Drive Systems for Passenger Cars and Ta, doi
  41. Electric Vehicle Development in Fiat", doi
  42. Electrically Propelled Vehicles at BMW -Experience to Date and Development Trends", doi
  43. (1992). Exerience Using Fuzzy Logic in an Expert System for Technical Diagnosis", VW Fuzzy Logic Meeting,
  44. Four Years Experience with 4-Wheel Antiskid Brake System (ABS)", doi
  45. Four-Wheel Steering System with Rear Wheel Steer Angle Controlled as a Function of Steering Angle", doi
  46. (1988). Frequency Dependent Variable Suspension Damping - Theoretical Background and Practical Success",
  47. (1968). Fuzzy Algorithms",
  48. (1992). Fuzzy Logic Flowers in Japan", doi
  49. (1992). Fuzzy Logic System Applied to Automatic Braking Control",
  50. Fuzzy Sets",
  51. If Vehicle Ride - Stages in Comprehension", doi
  52. (1991). Implementing Preview Control on an off-Road Vehicle with Active Suspension", doi
  53. Improvement of Vehicle Dynamics of Vehicle Speed Sensing Four-Wheel Steering System", doi
  54. (1971). Improving Suspension Damping",
  55. (1987). Intelligent Suspensions for Road Vehicles -Current and Future Developments",
  56. (1988). Invariant Properties of Automotive Suspensions",
  57. (1989). Investigations on State Observers for the Lateral Dynamics of Four-Wheel Steered Vehicles",
  58. (1985). it Dynamics: Theory and Applications, "
  59. (1978). J670e - Vehicle Dynamics Terminology, Society of Automotive Engineers,
  60. (1991). Making the Rules",
  61. (1981). Microcomputer Control of an Automotive Perbury Transmission", 3"
  62. (1991). Modelling and Control of Automotive Suspension Systems",
  63. Modelling and Simulation of a HGV Powertrain for Transmission Control Studies",
  64. (1986). Modelling and Simulation of an Automotive Powertrain Incorporating a Perbury Continuously Variable Transmission", IMech. E,,
  65. (1990). Modelling and Simulation of an Automotive Vehicle Chassis System",
  66. (1991). Motion Management for Automotive Vehicles",
  67. Multibody Modelling of Suspension Kinematics for Control Design",
  68. (1989). Multivariable Feedback Design", doi
  69. (1990). Multivariable Frequency Domain Toolbox: User's Guide, Cambridge Control Ltd.,
  70. (1992). Nonlinear Strategies for the Control of Active and Semi-Active Vehicle Suspension Systems", doi
  71. (1991). On Active Roll Control for Automobiles",
  72. (1985). On the Optimal Ride Control of a Dynamic Model for an Automotive Vehicle System", gth IAVSD Symposium,
  73. Optimal Ride Height and Pitch Control for 339 Championship Race Cars", doi
  74. Optimum Damping in a RandomlY Excited 'Non-Linear Suspension", IMech.
  75. Outline of a New Approach to the AnalYsis of Complex Systems and Decision Processes", doi
  76. (1988). Passive Automobile Suspension Parameter Adaptation",
  77. Performance and Design Considerations for Dissipative Semi-Active Suspension Systems for Automobiles", doi
  78. (1987). Power Train Computer Control Systems"
  79. (1975). Prescriptive Method for Deriving Control Policy in a Fuzzy-Logic Controller", doi
  80. (1992). Preview, Control of Limited Bandwidth Vehicle Suspension Systems",
  81. (1989). PROMETHEUS: A New Departure in Automobile R&D? ", 1MVP Intl. Policy Forum,
  82. (1981). Radio Transmission Based Automobile Driver Guidance System", IMech. E,
  83. Road Vehicle Suspension System Design -A Review", Vehicle System Dynamics, doi
  84. Semi-Active Control of Wheel Hop in Ground Vehicles", doi
  85. (1988). Semi-Active Damping", doi
  86. Semi-Active Heave and Pitch Control for Ground Vehicles", doi
  87. (1991). Semi-Active Suspensions -A Comparison Between Theory and Experiments", doi
  88. (1977). Simulation of a Vehicle Suspension with the ADAMS Computer Program", doi
  89. (1981). Some of the New Control Strategies for Electronic Engine Control Systems", IMech-E,
  90. (1983). Spacecraft Dynamics",
  91. (1974). Standard ISO 2631, "Guide for the Evaluation of Human Exposure to Whole-body Vibrations", International Organization for 336 Standardization,
  92. Suspension Optimization of a 2-Dof Vehicle Model Using a 335 Stochastic Optimal Control Technique", doi
  93. (1973). The Active Damper -A New Concept for Shock and Vibration Control", 43 rd Shock and Vibration Bulletin, Part H,
  94. (1984). The Application of Active Suspension to High Performance Road Vehicles", IMech. E,
  95. The Application of Linear Optimal Control Theory to the Design of Active Automotive Suspension", Vehicle System Dynamics, doi
  96. (1987). The Automobile in 1997",
  97. (1984). The Chatter of Semi-Active On-Off Suspensions and its Cure", doi
  98. The Development of an Experimental Four-Wheel Steering Vehicle", doi
  99. (1988). The Effect of Hardware Limitations on an On/off Semi-Active Suspension",
  100. The Fuel Saving Potential of Cars with Continuously Variable Transmissions and an Optimal Control Algorithm",
  101. (1987). The Motor Vehicle -A Good Example of the Wide Range of Application of Modern Control Engineering", 10" IFAC World Congress,
  102. The Relative Performance Capabilities of Passive, Active and Semi-Active Car Suspension Systems", doi
  103. (1982). The Response of Active and Semi-Act've Suspensions to Realistic Feedback Signals",
  104. (1987). The role of Automatic Control doi
  105. The Role of Modern Control Theory for Automotive Engine Control", doi
  106. (1992). The Status of Research on Fuzzy Control and Intelligent Systems in Japan", Seminar,
  107. (1987). The Works", doi
  108. (1988). Theoretical Comparisons of Various Active Suspension Systems
  109. (1987). User's Guide - For Sun Workstations, The MathWorks Inc.,
  110. (1990). User's Manual, version b1.1, pre-release edition,
  111. (1988). Variable Damping - Philosophy and Experiences of a Preferred System",
  112. Variable Suspension Damping Using Electro-Rheological Fluids",

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