Systematic Derivation of Objective Requirements on Vehicle Steering System

Martin Ralf Münster

doi:10.51202/9783186819123

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Bibliographic data

Copyright year: 2023
Publication date: 21.11.2023
ISBN-Print: 978-3-18-381912-6
ISBN-Online: 978-3-18-681912-3
Publisher: VDI Verlag, Düsseldorf
Series: Verkehrstechnik/Fahrzeugtechnik
Volume: 819
Language: German
Pages: 224
Product type: Book Titles

Titelei/Inhaltsverzeichnis No access Pages I - XVI
1. 1. Virtual Development Methods No access
  2. Target Cascading No access
2. 1. Desired Steering Feedback No access
  2. Undesired Steering Feedback No access
3. 1. Top-down (Decoupling) No access
  2. Bottom-up (Coupling) No access
4. Outline of the Thesis No access
1. Vehicle System and Subsystem Subdivision No access
2. 1. Subsystem Characterization with Frequency Response Functions No access
  2. Classification of Substructuring Methods No access
3. 1. General Notations No access
  2. Subsystem Coupling based on Impedance (Primal Formulation) No access
  3. Subsystem Coupling based on Admittance (Dual Formulation) No access
  4. Subsystem Decoupling (Dual Approach) No access
4. 1. General Notations No access
  2. Subsystem Coupling with Mechanical Four-Poles No access
  3. Subsystem Decoupling with Mechanical Four-Poles No access
1. 1. Steering Vibration Limit for Steady-State Driving No access
  2. Steering Vibration Limit under Braking No access
2. 1. Coupling / Decoupling Front Axle and Steering with LM-FBS Method No access
  2. Coupling / Decoupling Front Axle and Steering with Four-Pole Method No access
  3. Capabilities and Limits of the Methods in Comparison No access
3. 1. Expressing Vehicle Targets by Mechanical Four-Pole Coefficients No access
  2. Derivation of Necessary and Sufficient Limits to Subsystem Dynamics No access
  3. Derivation of Exact Limits to Subsystem Dynamics No access
  4. Mutual Dependencies of the Four-Pole Coefficients No access
1. 1. Case A: Passive Behavior of the Force-less Electric Motor No access
  2. Case B: Passive Behavior of the Motion-less Electric Motor No access
  3. Case C: Active Behavior of the Steering-Torque Controlled Electric Motor No access
  4. Case D: Active Behavior of the Rack-Force Controlled Electric Motor No access
  5. Interactions of the Four-Pole Coefficients of the Steering No access
  6. Eigenmodes of the Simplified Steering Model No access
  7. Exemplary Results of the Simplified Steering Model No access
2. 1. Basic Principle of Electric Power Steering No access
  2. Detailed Physical Model of Electric Power Steering No access
  3. Results of Virtual Steering Subsystem Analysis No access
3. 1. Experimental Testing of the Complete Steering Assembly No access
  2. Corrective Measures at Experimental Steering Testing No access
  3. Experimental Testing of the Steering Gear Subassembly No access
  4. Experimental Testing of the Upper Steering Column Subassembly No access
  5. Integrating Measured Dynamics of Subassemblies No access
  6. Results of Experimental Steering Subsystem Analysis No access
1. Simplified Front-Axle Model based on Lumped Masses No access
2. Simplified Front-Axle Model including Tire Dynamics No access
3. Detailed MBS Model of the Front Axle No access
4. 1. Application-Specific Requirements on the Roller Test-Rig No access
  2. Generic Requirements on the Roller Test-Rig No access
  3. Realization of the Roller Test-Rig No access
5. 1. Eigenmodes of the Front-Axle Subsystem No access
  2. Four-Pole Coefficients of the Front-Axle Subsystem No access
  3. Corrective Measures at Virtual Front-Axle Testing No access
  4. Results of Virtual Front-Axle Subsystem Analysis No access
1. 1. Predicting Vehicle Performance with Directly Assembled Subsystems No access
  2. Deriving Limits to Steering Dynamics No access
  3. Deriving Limits to Front-Axle Dynamics No access
2. 1. Preliminaries No access
  2. Subsystem Nonlinearities Experienced in Practice No access
  3. Predicting Vehicle Performance with Iteratively Assembled Subsystems No access
  4. Deriving Amplitude-Dependent Limits to Steering Dynamics No access
  5. Deriving Amplitude-Dependent Limits to Front-Axle Dynamics No access
  6. Comparing Linear versus Nonlinear Requirement Derivation No access
1. 1. The Basic Idea of Solution Spaces No access
  2. Procedural Outline No access
2. 1. Procedural Outline No access
  2. Design-of-Experiment Study on Steering Modules No access
  3. Solution Spaces for Design Parameters of the Steering No access
3. 1. Procedural Outline No access
  2. Design-of-Experiment Study on Front-Axle Modules No access
  3. Analysis of Correlation and Sensitivity No access
  4. Solution Spaces for Design Parameters of the Front Axle No access
  5. Solution Spaces for Bushing Dynamics No access
1. 1. Substructuring the Vehicle Steering No access
  2. Deriving Requirements on Subsystem Level No access
  3. Subsystem Analysis of Steering and Front Axle No access
  4. Resulting Subsystem Requirements No access
  5. Requirement-Based Module Design No access
2. Future Work No access
Bibliography No access Pages 195 - 204
1. Basic Transfer Function Representations No access
2. Transfer Matrices Transformation No access
3. Parameter Sets for Simplified Models No access
4. Exemplary Results of Simplified Models No access
5. User Interface to Operate the Virtual Roller Test-Rig No access
6. Graphical Interpretation of Limiting Curves No access
7. DoE Input Table for the Steering Design-Study No access
8. DoE Input Table for the Front-Axle Design-Study No access